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MARIA MYLENA OLIVEIRA DA CRUZ
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Mortality rates and contribution of zooplankton carcasses along of six estuaries systems in Northeastern Brazil
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Leader : MAURO DE MELO JUNIOR
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MEMBRES DE LA BANQUE :
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CATARINA DA ROCHA MARCOLIN
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MAURO DE MELO JUNIOR
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PEDRO AUGUSTO MENDES DE CASTRO MELO
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Data: 21 févr. 2022
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To understand the ecological role of zooplankton in the environment, it is also necessary to study the participation of dead and the mortality rate of these organisms, being very difficult to obtain information from traditional methods of study. Prehistoric factors do not have as main factors natural aging, conditional diseases and physical-chemical stress in the non-environment in which they live. This study sought to evaluate and characterize non-predatory mortality rates and the contribution of carcasses from the zooplankton community in tropical estuarine ecosystems with different degrees of urbanization, considering the following hypotheses. different tropical regions within the same tropical region with different percentages of carcasses, varying spatially; ii. estuaries embedded in large urban mortality rates, unanticipated higher degrees of large domestic rates. The study was carried out in six estuarine systems on the east coast of northeastern Brazil. Samples were collected between November 2020 and September 2021, always during the daytime (between 9 am and 12 pm) and during the ebb tide of syzygy. A total of 46 taxa were found, 12 of which were copepod species. The Oithonidae nauplii and the species Oithona oswaldocruzi were the most frequent organisms (35.7%). The mean density of zooplankton considering all the systems studied was 6,900.99 (± 8,674.87) ind. m-3, while that of live copepods was 124,501 ind. M-3. The average percentage of copepod carcasses was 51.34% with values ranging from 4 to 100% and the average mortality rate was 0.113 day-1 (± 0.070 day-1, CV: 62.4%), with the minimum values of 0.016 d-1 and maximum of 0.273 d-1, being the families Paracalanidae (0.545 day-1± 0.255; CV: 47%) and Oithonidae (0.119 ± 0.061 d-1; CV: 51.7%) have the highest values. The average number of days for carcass decomposition was 4.7 days. The present study showed that estuaries can supply the estuarine food web with a significant portion of planktonic copepod carcasses in the tropical Atlantic region (Northeast Brazil), and this contribution may vary in terms of families and environment. Differentiating organisms in terms of living and dead individuals can contribute to a greater understanding of how planktonic copepods actually participate in marine food webs, which is almost always erroneously related only to the route of classical food chains.
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2
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JOILSON VIANA ALVES
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Distribution and Richness of Convolvulaceae Juss. in the Espinhaço Range (lato sensu)
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Leader : MARIA TERESA AURELIANO BURIL VITAL
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MEMBRES DE LA BANQUE :
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DÉBORA MARIA CAVALCANTI FERREIRA
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JEFFERSON RODRIGUES MACIEL
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MARIA TERESA AURELIANO BURIL VITAL
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Data: 21 févr. 2022
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The Espinhaço Range (ER) occupies part of the territories of Bahia and Minas Gerais in the form of an imposing massif that is oriented in general north-south directions. Along its extension, the domains that surround it exert a strong climatic influence which, in association with the high altitudes, provide favorable conditions for the high richness and diversity of endemic species recognized among the most varied plant groups. Convolvulaceae has a cosmopolitan distribution, where the greatest richness and diversity of species is recorded in tropical regions. In this work we seek to understand the diversification of Convolvulaceae, one of the most diverse families of the flora of the Espinhaço Range, which is an area of high endemism in Brazil. To achieve the proposed objectives, a database composed of about 2.600
occurrence records compiled from SpeciesLink and Reflora was analyzed. One hundred and eighty-six taxa were categorized into four distribution patterns: continuous, disjoint, centered in the Bahian portion and centered in the Minas Gerais portion. Endemic species are found in all distribution patterns. The Parsimony Analysis of Endemism pointed out two main centers of endemism: one in the Minas Gerais portion (Planalto Diamantina) and the other in the Bahia portion (Chapada Diamantina). The floristic similarity analysis also showed two main groups, one in each portion, however, with low similarity between them. Richness and diversity are concentrated in the Quadrilátero Ferrífero and mainly in Chapada Diamantina. The Mid-Domain Effect is a model that applies very well to the richness of Convolvulaceae in the altitudinal gradient of the Espinhaço Range.
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3
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ARTHUR MACEDO ROCHA
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Taxonomy and palynology of Spigelia L. (Loganiaceae)
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Leader : MARIA TERESA AURELIANO BURIL VITAL
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MEMBRES DE LA BANQUE :
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JEFFERSON RODRIGUES MACIEL
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MARIA TERESA AURELIANO BURIL VITAL
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SARAH MARIA ATHIE DE SOUZA
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Data: 21 févr. 2022
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Spigelia L. is the second largest genus of Loganiaceae. Between 60 and 90 species are recognized, distributed from the subtropical regions of the United States to northern Argentina, including the Caribbean Islands and being cited as invasive in Africa and Asia. In Brazil, it is represented by 47 species, 29 of which are endemic to the country, standing out as the country with the greatest diversity of Spigelia species in the world. Many are found only in the Caatinga and Campos Rupestres in the Northeast and Southeast, corresponding to more than 70% of its species richness in the country. Spigelia is characterized by its herbaceous habit, opposite or pseudoverticillated leaves, gamopetal corolla, superus ovary and fruits with bilobed capsular, as well as oblate, tricolpate pollen, with several ornamentations (verrucate, rugulate and psilate, among others). The genus, however, has been undersampled in palynological studies, with only 14 species (15% of the genus) whose pollen morphology is known. Also, a considerable number of nomenclatural problems persist in the genus after incomplete or unpublished revisional efforts. This study aimed to contribute to the taxonomic and systematic knowledge of the genus Spigelia, using tools to elucidate nomenclature information and explore the palynomorphological diversity of the genus. In the first chapter, we used the Jstor Plant and Species Link databases were used to search for type materials, in addition to consulting the protologues, to propose resolution for typification problems in the genus. Then, we proposed eight lectotypes and one neotype for names of Spigelia from South and Central America. For the second chapter, palynological analyses of 10 species (nine never palynologically described) belonging to four sections were performed under Light Microscopy and Scanning Electron Microscopy, being possible to characterize and identify the studied species due to variations such as size (medium to very large), aperture number (2 to 4) and exine ornamentation (microrugulate, rugulate, verrucate, microverrucate or psilate, with or without perforations and Übisch bodies) of the pollen grains.
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4
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YAGO ARAÚJO DE MÉLO
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Taxonomy of Diadumene Stephenson, 1920 (Cnidaria, Actiniaria) in Brazil
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Leader : PAULA BRAGA GOMES DE PEREZ
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MEMBRES DE LA BANQUE :
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SÉRGIO NASCIMENTO STAMPAR
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PAULA BRAGA GOMES DE PEREZ
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ULISSES DOS SANTOS PINHEIRO
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Data: 22 févr. 2022
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The genus Diadumene (order Actiniaria) comprises some sea anemones with expressive bioinvasive potential in several countries. The high tolerance to fluctuations in temperature, salinity and desiccation, combined with high periodic rates of asexual reproduction, contribute to the capacity of the species to colonize practically any type of habitat and substrate, being found even in considerably polluted port areas. Since they are benthic organisms, but with dispersion mediated by ships, the species are continually cited as new occurrences for places beyond their region of origin. Brazil has 4 valid species for the genus and recent studies exhibits an increasing number of records, mainly for estuarine zones. In this work, through collections in estuarine and port regions in the states of Maranhão, Ceará and Pernambuco, Northeast region of Brazil, we analyze individuals associated with rocks, bridges and mangrove roots, collected at low tide in the intertidal zone. In laboratory, the specimens were anesthetized, dissected, preserved in 4% formalin and observed for the external and internal organization of taxonomically relevant structures. Small tissue fragments were prepared in paraffin for the elaboration of histological slides, stained with Hematoxylin/Eosin. Cnidom data were obtained through squash preparations, and visualized with the aid of an optical microscope with 100X ocular magnification. As a result, we describe two new species, Diadumene sp. n. 1 and Diadumene sp. n. 2, we report new occurrences for the species Diadumene paranaensis, Diadumene leucolena, and discuss about the variety of morphotypes of Diadumene lineata found in the country. The descriptions presented here increase the number of Diadumene species in Brazil to 6, and to 14 in the world, demonstrating a great diversity of the group in the country for estuarine or port areas.
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5
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JOÉSILI CRISTINA PEREIRA DE OLIVEIRA
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TAXONOMY AND DISTRIBUTION OF Croton L. (EUPHORBIACEAE) IN THE PROTECTED AREA OF CHAPADA DO ARARIPE, NORTHEASTERN BRAZIL
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Leader : SARAH MARIA ATHIE DE SOUZA
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MEMBRES DE LA BANQUE :
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MARIA IRACEMA BEZERRA LOIOLA
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MARIA TERESA AURELIANO BURIL VITAL
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SARAH MARIA ATHIE DE SOUZA
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Data: 23 févr. 2022
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Croton L. is the most diverse (ca. 1200 spp.) and morphologically and taxonomically complex genus of Crotonoideae (Euphorbiaceae). It has pantropical distribution. For Brazil, ca. 300 species are reported, distributed in all states and phytogeographic domains. Chapada do Araripe emerges as an area of interest that illustrates well a scenario with potential to study Croton due to the variety of phytophysiognomies and for being an area with a high level of endemism. Considering the expressive representation of Croton in the Northeast region, the morphological complexity of the genus and the lack of specific studies on the genus in Chapada do Araripe, this work aims to carry out a taxonomic and distribution modeling study of Croton species occurring in the region of the APA of Chapada do Araripe. For this, specimens deposited in the regional herbaria were analyzed, and the occurrence points were used to assume the distribution patterns. Nineteen species of Croton were recorded in the APA area of Chapada do Araripe, among those, seven are endemic, occurring only in the Brazilian semiarid region. In addition, four species (C. floribundus Spreng., C. grewioides Baill., C. Suassunae Y. Rossine & A. L. Melo and C. urticifolius Lam.) had not yet been cited in the literature as occurring in the APA. The distribution models of Croton species showed potential occurrence in all APA phytophysiognomies, with emphasis on carrasco and caatinga regions. Areas with high levels of anthropic pressure also proved to be conducive to the occurrence of the taxa. In addition, three lectotypifications were proposed for the genus.
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MATEUS DA SILVA BONFIM
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Trophic and parasitary patterns of Tropidurus hygomi REINHARDT & LÜTKEN, 1862 (SQUAMATA: TROPIDURIDAE) in restinga of north coast of Bahia
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Leader : GERALDO JORGE BARBOSA DE MOURA
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MEMBRES DE LA BANQUE :
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DANIEL OLIVEIRA MESQUITA
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GERALDO JORGE BARBOSA DE MOURA
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LÚCIO ANDRÉ VIANA DIAS
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Data: 27 mai 2022
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Studies about the ecological patterns of the species are of fundamental importance in the generation of subsidies for the elaboration of conservation and management strategies. Lizards have been presented as good models for ecological studies, however there is still a gap for studies in this field about different species of lizards in the tropics. Among the species under this condition, there is Tropidurus hygomi, endemic to the restinga regions of the northern coast of Bahia and Sergipe and recently classified as vulnerable (VU A2bc) regional and nationally. Based on the above, this study aimed to detect patterns of trophic and parasitic ecology of T. hygomi, with the hypothesis that rainfall will be the main factor that will influence the variations of these ecological slopes. The study was carried out in an area of restinga on the north coast of Bahia, in the municipality of Camaçari, where individuals of the studied species were collected monthly by manual collection. The specimens went through morphometric procedures and optical scanning in search of ectoparasites. Afterwards, they were euthanized and dissected, having their cavities and cavity organs investigated. The ecto and endoparasites found were fixed in 70% alcohol and stored in properly identified microtubes. The digestive tracts of the lizards were also investigated. Stomach contents were categorized and identified. Each prey item was measured for maximum width and length. For trophic ecology, values of occurrence, number and volume were estimated, in addition to obtaining the indices of importance for each prey item. For parasitic ecology, values of prevalence, intensity and dominance coefficient were estimated for each registered parasite species. Multivariate analyzes were performed to detect statistical significance in trophic and parasitic variations and patterns. In addition, regression tests of the intensity of parasites with the body condition of the hosts were performed. The results of the current project revealed that the trophic and parasitic patterns of T. hygomi do not occur in a generalized way, but present significant variations in terms of life stage and sex of the host, as well as seasonality. The life stage was the main influencing factor in all the patterns studied, in addition to acting closely in the close relationship between diet and the parasite-host relationship. Trophic and parasitic patterns can both reflect and be sustained by a balanced environment, while being susceptible to change if there are external impacts on the environment.
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PAULA FERNANDA DE ARAÚJO
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Geographical Variation in the Ecology of Amerotyphlops brongersmianus (Snake: Typhlopidae) in Atlantic Forest areas of Brazil
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Leader : MOACIR SANTOS TINÔCO
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MEMBRES DE LA BANQUE :
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GENTIL ALVES PEREIRA FILHO
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ROBSON WALDEMAR ÁVILA
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MOACIR SANTOS TINÔCO
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Data: 27 mai 2022
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In the Atlantic Forest are found different phyto physiognomies occupied by different taxa, with specific biological requirements related to the environment, widely distributed species are excellent models for ecological studies, since they allow evaluating the effect of environmental variations where they live. In this work, we verified how populations of Amerotyphlops brongersmianus respond to different environmental pressures within the Northeastern Atlantic Forest. A total of 192 specimens were measured, of which 137 could be examined in total, 70 were females and 65 males. In general, the populations of Amerotyphlops brongersmianus showed a strong phylogenetic conservatism when comparing males and females within each Atlantic Forest ecoregion. Females presented longer snout-vent length than males only in ecoregion I. Males have a longer tail than females in all sampled ecoregions. Revealing evidence of sexual dimorphism for the species. In addition, the diet was similar, with only ants, in different life cycles, being consumed. As for reproduction, the populations were similar in the number and size of eggs and follicles, and even in the volume of the testes. With our study, we hope to expand information about the snake Amerotyphlops brongersmianus, generating relevant data for the conservation of Atlantic Forest biodiversity, evaluating possible threats to these populations, and thus assisting in conservation strategies.
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ALEXANDRE DE JESUS RODRIGUES MALTA
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Group composition affects infant motor development of a cooperative breeding primate: the gender effect
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Leader : NICOLA SCHIEL
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MEMBRES DE LA BANQUE :
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FILIPA ALEXANDRA DE ABREU PAULOS
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NICOLA SCHIEL
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PAULA BRAGA GOMES DE PEREZ
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Data: 31 mai 2022
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Primate infants go through several stages of physical and cognitive development soon after birth and are influenced by several factors, whether in the wild or even in captivity. Soon after birth, they are exposed to the influence of their parents and non-parents. The presence of other individuals in the group who help in the care of the offspring has been the focus of studies on parental care, but it is not yet known about how the composition of the group in general influences the motor development of infants. The common
marmoset Callithrix jacchus lives in social groups formed by a breeding pair and non- breeding subordinate individuals and is characterized by the peculiar social system in
which non-breeding individuals help in the care of the offspring in a cooperative way. We decided to test the following hypotheses, if the motor development of free-living C. jacchus infants varies as a function of the number of non-breeding adults in the group, if confirmed, we expect to find a delayed motor development of infants present in groups with more helpers in in relation to infants present in a group with fewer adults helping. We also seek to test the hypothesis whether the motor development of C. jacchus infants in the wild varies according to the sex of the helpers, and if this is confirmed, we hope to find a difference in the motor development of infants in relation to the number of females in the development of infants. . Four groups of common marmosets were observed in the wild, in an area of Atlantic Forest of Pernambuco, northeast of Brazil, which are accustomed to human presence and their behaviors were recorded using the focal animal method, from 05:00 am to 05:00 pm during the months of October/2001 to April/2002. We collected behavioral data associated with the motor activity of infants between 1 and 4 months of age, where a motor diversity index was applied that indicates the motor capacity of each infant during each month of age based on the ratio of the number of adults and infants. , as well as the ratio of males and females to infants. The results pointed to an interaction between the age of the infants and the composition of adults in the group influencing the motor diversity of infants, mainly involving the participation of adult females in the group.
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ADSSON RODRIGUES DE SANTANA
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TERRITORY CALL OF Dendropsophus elegans (WIED-NEUWIED, 1824) AND Pithecophus gonzagai (ANDRADE, 2020), A FRAGMENT OF ATLANTIC FOREST IN NORTHEASTERN BRAZIL
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Leader : GERALDO JORGE BARBOSA DE MOURA
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MEMBRES DE LA BANQUE :
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MOACIR SANTOS TINÔCO
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MARCELO NOGUEIRA DE CARVALHO KOKUBUM
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PRISCILA GUEDES GAMBALLE
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Data: 31 mai 2022
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Vocalization has a role of partners and territory delimiters and are influenced by environmental variables. Bio is an effective tool for animals to communicate primarily through sound. Territory singing limits competition for females and territories, physical disputes. Pithecopus gonzagai and Dendropsophus elegans have only their advertisement call described. The present study aims to: [1] Describe the territory song of Dendropsophus elegans; [two]. Describe the territory song of Pithecopus gonzagai. The study was carried out at the Tapacurá Ecological Station, located in the state of Pernambuco, using a remote audio recorder with scheduling functions between the year 2019 and 2020. The acoustic parameters of Pernambuco investigated were: Environmental data were recorded through a Datalogger. Twenty contracts were selected for each of them, using Audacity software, and the graphics were generated using Raven. The acoustic parameters investigated were: average singing duration; interval between corners, pulses per corner, minimum frequency; maximum frequency; dominant frequency and Frequency Amplitude. The territory calls of D. elegans and P. gonzagai is formed by a single multipulsed note as well, after or in response to the advertisement call or the presence of other males.
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10
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JOSÉ RONALDO FERREIRA DE LIMA
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Functional morphology of stylets in Cassiinae (Leguminosae).
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Leader : NATAN MESSIAS DE ALMEIDA
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MEMBRES DE LA BANQUE :
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JEFFERSON THIAGO SOUZA
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NATAN MESSIAS DE ALMEIDA
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REINALDO RODRIGO NOVO
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Data: 31 mai 2022
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Species of the genus Senna enantiostilia and flowers with rich morphological diversity. The flowers have poricidal anthers and are pollinated by bees capable of vibrating stamens (vibration pollination). The study was carried out in the Pedra Biological Reserve. This dissertation is presented in two chapters. The first aims to investigate the proportion of floral morphs from the morphological and functional assessment in Cassie species. Our hypothesis is that the morphology assessment is similar to the morphological assessment, and distinct in function, with the presence of the central morphology. Our data show that, in the morphological evaluation, a proportion of flowers and similar rights However, no function functionally lefts (FE), (FD) (FD) in different positions in the differences and on the positioning of the models, in all the differences and on the positioning of the models in all species and the distinct left contours in all species. . A greater meaning about the position of the positioning of the sides, needs to be a greater understanding of the other alternatives, pollen as structures and also their functionality, being able to have the use of the pollinator. What aims to investigate the morphological sequence of stigmas and stigmas in pollinator northern pollen collection, questions P1) How to investigate by the gynoecium sequence and the stigmatic surface area according to the sequence: in the amount of pollen followed and do the following: amplitude of capture?; P2) How different forms of gynoecium and stigmata? From the selected results, similar values were selected in the formation of the styles of the style, in both hays of pollen collection, in the evaluation of selection of typical tests not presented in the selection of influence in the selective distribution of S. a directversiflora, although not test of Pollen collection efficiency, the range of motion indicated directional selection for smaller range of pollen collection, collecting the greatest amount of pollen. Although it was verified that the aspects of the pistil shape were not important, the work brings information about the reproductive aspects of S.
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MARCOS JOSÉ DA SILVA JÚNIOR
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RESPOSTAS FISIOLÓGICAS, BIOQUÍMICAS E NO PERFIL DE ÓLEO ESSENCIAL DE Lippia grata SCHAUER SUBMETIDAS À RESTRIÇÃO HÍDRICA E ELICITAÇÃO COM PERÓXIDO DE HIDROGÊNIO.
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Leader : CLAUDIA ULISSES DE CARVALHO SILVA
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MEMBRES DE LA BANQUE :
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CLAUDIA ULISSES DE CARVALHO SILVA
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MARCUS VINICIUS LOSS SPERANDIO
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MARINA MEDEIROS DE ARAUJO SILVA
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Data: 31 mai 2022
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Several species of the genus Lippia, belonging to the Verbenaceae family, have been used in folk medicine for their biological and therapeutic activities, due to the bioactive potential of their essential oils, which are produced by the secondary metabolism of plants and are essential for the generation of products. pharmaceuticals, food, cosmetics and agrochemicals. Some environmental conditions or chemical substances can induce the production of secondary metabolism compounds, among them hydrogen peroxide (H2O2), which is a reactive oxygen species, acts by regulating a variety of important physiological mechanisms and has been used as an elicitor, due to the ability to stimulate defense mechanisms, causing an increase in secondary metabolites and acclimatization of plants to stress. In this sense, the present work evaluated the influence of hydrogen peroxide on the biometric and biochemical parameters and on the essential oil profile of the species Lippia grata submitted to water restriction. For this, L. grata plants were sprayed with H2O2 at concentrations of 0.675μM; 1.35μM L-1
and the control (0μM) and then submitted to three irrigation regimes: 25%, 50% and 75% for 60 days. The foliar application of H2O2 was relevant in the increase of PSPA (50% and 0.675μM L-1), proline, MDA and reduction of the relative water content (25% and 1.35μM L-1) in plants of L. grata, in addition, the two H2O2 concentrations positively influenced the accumulation of α-Pinene (75% irrigation), myrcene, p-cymeno (75% and 50% irrigation), α-terpinene and γ-terpinene (50% irrigation), the accumulation being more accentuated with 1.35μM L-1 of H2O2. The water restrictions were deleterious to the growth and development of L. grata plants, being expressed through the reduction of growth (25%) and production of branches (50% and 25%) regardless of the concentration of H2O2, reduction of TRA, increase of MDA and proline (25% and 1.35μM L-1), inhibition of the production of α-pinene, myrcene, α-terpinene (25% irrigation independent of H2O2), in addition to reducing the accumulation of p-cymene and γ- terpinene when compared to treatments with 75% in L. grata plants, but there was no evidence of severe oxidative stress in the evaluated plants, this observation may be related to the elicitation with H2O2 and the fact that the species L. grata is endemic to semiarid regions of northeastern Brazil
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GIULIA DE ANDRADE LIMA BERTOTTI
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ANALYSIS OF HYDROCARBONS AND TRACE ELEMENTS IN SEA TURTLE TISSUES IN NORTHEASTERN OF BRAZIL
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Leader : GERALDO JORGE BARBOSA DE MOURA
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MEMBRES DE LA BANQUE :
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SIMONE ALMEIDA GAVILAN
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GILVAN TAKESHI YOGUI
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GERALDO JORGE BARBOSA DE MOURA
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Data: 30 juin 2022
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In the second half of 2019, an oil spill was documented in 882 coastal locations in the Northeast of Brazil, a fundamental environment for the reproduction and development of sea turtles, animals that roam the entire Brazilian coast and are threatened of extinction at the state, national and international level. Direct or indirect contact with substances present in crude oil can cause several damages to the health of these animals, such as inefficiency of vital organs and bioaccumulation of toxic compounds. Hydrocarbons and trace elements are some of the substances present in petroleum capable of bringing serious risks to the health of sea turtles, therefore, it is necessary to evaluate the presence of these compounds in organisms, which in the process of energy transfer, can cause damage to the entire ecosystem. From this, the objective of this work was to carry out a qualitative and quantitative analysis of hydrocarbons and trace elements in different tissues of stranded sea turtles on the coast of Northeast Brazil, before (2016-2018) and after (2020-2021) the environmental disaster of the 2019 oil spill. 44 animals were collected between 2016 and 2018 (Group 1) and 38 between 2020 and 2021 (Group 2), which were found dead along beaches of the northeast coast. The animals were collected and transported to the LEHP at UFRPE and to the PCCB at UERN, where the animals were identified and biometrically measured. All individuals in Group 1 were identified as Chelonia mydas and had a mean of 61.65 cm and 57.64 cm for the CCC and LCC, respectively. In Group 2, 79% were identified as Chelonia mydas, 15% as Lepidochelys olivaceae and 11% as Caretta caretta. Biometric measurements (CCC and CCW) showed averages of 61.65 cm and 57.64 cm. Dissection was performed to remove liver and skeletal muscle samples from the animals. The samples were subjected to homogenization and later stored in glass containers. The samples from Group 2 were send to PUC-Rio, where the analysis of polycyclic aromatic hydrocarbons were performed by the Sohxlet extraction method for the liver and QuEChERS extraction method for the muscle. The identification and quantification of PAHs was performed by GC-MS using the internal measurement method. The samples from group 1 and 2 were sent to CENAPESQ - UFRPE where the quantification of the elements Al, Ar, Ba, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, K, Se, Sr and Zn was performed, through ICP-OES. For group 2, 40 PAHs were identified in the analyzed tissues. The main sum of total PAH was 202.2.21 ng/g in the liver and 231,10 ng/g in the muscle, being Naphthalene, Pyrene, Phenanthrene and Fuoreno the most abundant, which indicate the contamination by oil spills. The percentage of alkylated PAHs, which also indicates the presence of oil, was high in both liver (48.24%) and muscle (41.03%). No difference was observed for PAH concentrations according to the tissues, however, cluster analysis identified two PAHs retention profiles, one pyrogenic and one petrogenic. For trace elements, 10 minerals were identified in the different tissues analyzed from the animals from Group 1 and 2. For the two groups, the most abundant elements were Zn, Al, Cu and Ni, however, for Group 2, in addition to elements cited, Pb concentrations as also high in relation to the others. The concentrations of elements in Group 1 were bigger than Group 2. Biometric measures having no significant differences between the amount of substances.
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ALEXANDRE PEREIRA DANTAS
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Reproductive biology of Pithecopus gonzagai (Anura, Phyllomedusidae) in northeastern Brazil.
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Leader : GERALDO JORGE BARBOSA DE MOURA
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MEMBRES DE LA BANQUE :
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MOACIR SANTOS TINÔCO
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RENATA AKEMI SHINOZAKI MENDES
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RICARDO LOURENÇO DE MORAES
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Data: 30 juin 2022
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Reproduction is a component of the biology of the species that shapes the morphology of individuals, influences predation and defense behaviors, acts on the choice of life habitats and acts on the physiology of the species. Therefore, the objective of this study was to describe the reproductive pattern of the species Pithecopus gonzagai, as well as to characterize the histological aspects of the gonads, to evaluate the influence of seasonal variations on the growth index and gametic density of this species. This study was carried out at the Tapacurá Ecological Station (EET) - PE and at the Horto Florestal Olho D'água da Bica (HFODB) - PB. We carry out monthly nocturnal expeditions with auditory and visual searches between February 2018 and January 2019 at EET and between August 2020 and July 2021 at HFODB. The captured animals were taken to the Anuran Biology Laboratory - UFCG, which were euthanized through an overdose of anesthetic, had the Rostrum Cloacal Length measured with the aid of a digital caliper and weighed with a precision scale. The gonads, livers and fat bodies were removed, measured with a digital caliper and weighed with an analytical balance and separated for further analysis. Body weight, gonads, liver and fat bodies were used for gonadosomatic, hepatosomatic and liposomatic calculi. The gonads were submitted by a classic histological protocol and embedded in paraffin. Sectioned at 5.0 μm and stained in H/E. Qualitative analysis was performed using a conventional microscope coupled to a digital image acquisition system. The density of volume and final cells of spermatogenesis was calculated: spermatids I, spermatids II and spermatozoa. To quantify the density of profiles, fields were counted in a Test Area with 0.044 mm2 for each animal. The final result (mm2) was acquired after using the average for each profile and applying the formula: QA = Ʃprofiles/AT. The monthly rainfall data were acquired through the database of the Pernambuco Agency for Water and Climate and the Center for the Executive Agency for Water Management of the State of Paraíba. As for the temperature and relative humidity data, they were acquired through a Thermo Hygrometer in the areas where the animals were collected in each monthly expedition. A total of 42 individuals of P. gonzagai were collected in the EET and 64 in the HFODB. Through the results obtained for the values of K1, IGS, IHS and ILS over the months sampled, for both populations, there was no significant relationship with precipitation in their respective study areas. Germ cells showed a significant relationship to females in the HFODB. The processes of growth and gonadal weight, weight of livers and fat bodies, as well as spermatogenesis and gametogenesis. They showed a positive relationship with precipitation in their respective study areas. Although there is no statistically significant relationship. We conclude that the reproductive activity of the species Pithecopus gonzagai is classified as potentially continuous.
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14
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JADE BEATRIZ ALVES DA SILVA
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SPACE-TEMPORAL DIVERSITY AND ABUNDANCE OF ICHTHYOFAUNA OF NORTH COAST OF PERNAMBUCO
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Leader : FRANCISCO MARCANTE SANTANA DA SILVA
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MEMBRES DE LA BANQUE :
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FRANCISCO MARCANTE SANTANA DA SILVA
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JONAS ELOI DE VASCONCELOS FILHO
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MAURO DE MELO JUNIOR
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Data: 29 juil. 2022
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Studies on the distribution and use of different coastal habitats by fish species are of great importance for the conservation and/or sustainable use of these environments and their resources. The fish community presents changes in its structural and ecological indices such as diversity and richness in different habitats. Thus, the present study aims to analyze the structure of the fish assemblage in a marine-estuarine gradient of the northern coast of Pernambuco, in order to evaluate possible temporal and spatial differences in its structure, abundance and ecological indices. The work was carried out at Itamaracá Island, near the mouth of Jaguaribe River, through monthly collections during one year, at low tide during the new moon. Drags were performed using a mangote net with 20 m long, 1.5 m high and 5 mm mesh opening. The drags with replicas were carried out at two points: 1) in the bursting zone, and 2) in the estuary of the Jaguaribe River. The individuals collected were euthanized and immersed in Eugenol solution according to the CONCEA, then labeled and fixed in situ in 10% formalin, taken to the laboratory where they were preserved in 70% ethanol, and later identified to the lowest possible taxonomic level. The number of individuals per species was quantified in order to correlate the abundance with spatial-temporal variations. The environmental variables water temperature and salinity were measured in situ at each collection point using a thermometer and refractometer. The data obtained were analyzed according to species richness, relative abundance (%), through the ecological indices: Margalef's richness, Simpson's dominance, Shannon-Wiener's diversity, and Pielou's equitability. The Chi-square test was performed in order to verify whether there is a significant difference or not between the samples. The nMDS ordination and the ANOSIM test were performed to assess whether there are differences between points and periods of the year. A total of 11,032 individuals were identified, with the Engraulidae family being the most representative. The bursting zone was the point of greatest abundance and richness, with
7,795 individuals and 58 species, and the Engraulidae and Polynemidae families were the most representative, while the estuary presented the Clupeidae and Tetraodontidae families as the most abundant. Lile piquitinga was the species of greatest abundance, followed by Polydactylus virginicus and Haemulopsis corvinaeformis. The rainy season was responsible for the highest biomass. The site with the highest biomass was the bursting zone, during the dry season. The points showed differences in their composition, abundance and ecological indexes, being estuary the point of greatest dominance (D= 0.29), while the bursting zone presented the greatest Shannon diversity (H= 2.61) and Margalef richness (D= 6.89). Although the bursting presents the highest abundance and the best indexes of diversity, richness, and evenness in relation to the estuary, both areas are very important for several species of fish at different life stages, and are widely used as breeding and recruitment areas for youngsters, showing the importance of conservation in these regions.
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15
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TÚLIO BERNARDO CAXIAS DE OLIVEIRA
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SPACE TEMPORAL DISTRIBUTION OF A FISH ASSEMBLY IN A TROPICAL COASTAL ECOSYSTEM
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Leader : ANA CARLA ASFORA EL DEIR
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MEMBRES DE LA BANQUE :
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ANA CARLA ASFORA EL DEIR
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MAURO DE MELO JUNIOR
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JONAS ELOI DE VASCONCELOS FILHO
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Data: 29 juil. 2022
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Estuarine environments, as well as surf zones, although they are quite important, both ecologically and economically, have suffered several anthropic pressures over time and this can be observed in aquatic communities, such as ichthyofauna. Thus, this work aimed to analyze the structure of the fish community in a marine-estureane environment in Maracaípe throughout the year. The collections were carried out monthly between August 2021 and July 2022, at a ebb tide of the new moon, in the estuary and in the surf zone north of the river's mouth. Beach trawl divederes were made. The abiotic salinity and temperature data were measured at each sampling point and the individuals collected were measured and weighed in the laboratory. The ecological indices richness, Shannon-Wiener diversity, Pielou equitability, total and relative
dominance and abundance were analyzed. Cluster analysis was performed using the Bray- Curtis seimilarity index from the matrices of abundance and presence and absence of the
species. An nMDS and CCA were also performed to confirm the data pattern. The chi-square test, between the collection points and the months, and the ANOSIM test, were performed in order to obtain the degree of meaning of the data. The analyses and graficos were performed in the PAST and Excel softwares. A total of 13,614 individuals, 29 families and 66 species were identified. Clupeidae, Engraulidae and Haemulidae were the most abundant families. Lile piquitinga (38%) and Haemulopsis corvinaeformis (17.09%) were the most abundant species. In March, in the surf zone, there was a high dominance of H. corvinaeformis while October, in the estuary, the dominance was of L. piquitinga. In general, the surf zone had higher rates of diversity (2.22) and richness (47) when compared to the estuary, but the estuary proved to be a more vulnerable environment. here was also a segregation of species with regard to habitat use: Atherinella brasiliensis, Lile piquitinga and Eucinostomus argenteus are mostly estuarine while Haemulopsis corvinaeformis, Larimus breviceps and Polydactylus oligodon were the species of the bursting zone. Thus, the importance and need for management actions for sustainable use of the coastal region of Maracaípe is emphasized, since it has a great ecological and economic importance.
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16
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ANA MARIA DA COSTA DE SOUZA
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Microplastix: The role of seagrass in retaining microplastics
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Leader : KARINE MATOS MAGALHAES
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MEMBRES DE LA BANQUE :
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JACQUELINE SANTOS SILVA CAVALCANTI
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JOSE SOUTO ROSA FILHO
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KARINE MATOS MAGALHAES
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Data: 4 août 2022
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Microplastics are synthetic particles causing great concern in different marine ecosystems worldwide. The role of seagrass meadows in the retention of microplastics in the sediment, however, is still poorly understood, especially in the tropics. The objective of this study was to evaluate the retention of microplastics (abundance and characteristics) in the sediment of a tropical estuarine ecosystem in northeastern Brazil, taking into account the habitats vegetated by multispecific grasslands formed by the small species Halophila baillonii, H. decipiens and Halodule wrightii. Samples were collected in the rainy (August 2021) and dry (February 2022) seasons and the particles were extracted by density, followed by chemical digestion (NaOH) for visual characterization in the stereomicroscope. Microplastics were present in 80% of the samples, totalling 223 particles (0.017 to 4.48 mm - 2.79 ± 2.76 particles g-1
dw). Fibers (73%), blue colour (51%) and particles smaller than 0.1 mm (80%) were the most frequent in the study. Althought differences in species architecture, there was no difference in the capacity to retain microplastics. For this first survey, the trap effect of marine angiosperms showed no variation for particle abundance between areas, between these smaller species and observed climatic seasons. It was verified that, despite the observations having been carried out within the Environmental Protection Area (APA Santa Cruz), the continuous anthropogenic impact associated with the poor management of plastic waste might contribute to these results of the concentrations and abundance of microplastics in the meadows of Neotropical species, in addition to the species being smaller than usual to the bioregion.
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17
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MARCOS ANTONIO LIMA MATOSO
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ASSOCIATIONS OF BURROWING SHRIMPS (AXIIDEA AND GEBIIDEA) FROM BEACHES ADJACENT TO A TROPICAL ESTUARY AND THEIR RELATIONSHIP WITH ENVIRONMENTAL HETEROGENEITY AND PLANKTONIC LARVAE.
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Leader : MAURO DE MELO JUNIOR
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MEMBRES DE LA BANQUE :
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JUSSARA MORETTO MARTINELLI LEMOS
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FLÁVIO DE ALMEIDA ALVES JÚNIOR
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MAURO DE MELO JUNIOR
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Data: 31 août 2022
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The present study aimed to analyze zooplankton with emphasis on the occurrence of burrowing shrimp larvae between more coastal waters and waters of an estuarine plume, during drought (dry) and rainfall events and between environmental parameters (temperature, pH and salinity) and relate to the occurrence of ovigerous females. For this, a manuscript was produced in which the study area comprised a marine-estuarine system, located between the municipalities of Paulista and Igarassu, north coast of Pernambuco. Taking the estuarine plume of the Timbó river as a reference, zooplankton samples were collected at three sampling stations: 1-estuarine plume, 2- waters from the northern portion in relation to the plume and 3- waters from the southern portion. The environmental variables of the water in each station were also measured. Adult individuals were collected at Mangue Seco beach, adjacent to the plume. Organisms were identified and quantified. A PERMANOVA test was applied to verify the occurrence of significant differences between larval density, collection stations and sampling events. Among the taxa found in zooplankton, Axianassa australis, Upogebia sp., Callichirus major, Lepidophithalmus siriboia and Neocallichirus sp. were identified. it was not possible to identify significant differences in larval density and observed factors. Larvae of the species Axianassa australis were the most representative throughout the study, thus demonstrating that burrowing shrimp of estuarine origin contribute more to the coastal zooplankton community. There was coincidence between the occurrences of larval species and ovigerous females. However, the adult individual of A. australis was not collected, suggesting that the absence of adults is caused by environmental incompatibility. Thus, the study provides information relevant to the ecology and larval contribution of burrowing shrimp in the natural environment.
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18
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PAULO HENRIQUE SANTOS VIEIRA
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CYANOBACTERIA FROM MANGROVES IN THE STATE OF PERNAMBUCO
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Leader : WATSON ARANTES GAMA JUNIOR
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MEMBRES DE LA BANQUE :
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CAMILA FRANCILEI DA SILVA MALONE
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TAIARA AGUIAR CAIRES
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WATSON ARANTES GAMA JUNIOR
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Data: 28 nov. 2022
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Estuaries have great ecological importance, being one of the most productive ecosystems in the world. Associated with these tropical environments, the mangroves are generally characterized by a halotallerant vegetation, essential for the maintenance of the coastal ecosystem. For these reasons, they are environments where there is extensive socioeconomic activity and, therefore, today there are no more mangroves that have not been impacted by anthropogenic factors. Cyanobacteria make up the microbiota of these environments in the most diverse spaces, being free on water column (phytoplankton) and sessile over submerged substrates (periphyton). In all these environments, cyanobacteria contribute to primary production and are essential in carbon and nitrogen fixation, the latter element being naturally scarce in organic form in many environments colonized by cyanobacteria. Despite their great contribution to ecosystem maintenance in mangroves and estuaries, cyanobacteria are commonly left out of taxonomic research involving these habitats and little is known about these prokaryotes in these environments in Brazil. Therefore, the objective of this research is to identify and describe planktonic and periphytic cyanobacteria in mangrove habitats in the state of Pernambuco. The samples were collected at three points (river mouth, middle and amount) in four estuaries (Barra das Jangadas, Rio Una, Rio Formoso and Santa Cruz): 1) for phytoplankton samples (subsurface water at low tide and high tide) and 2) for periphyton (pneumatophore) samples, where freely collected along the mangrove areas in each region equivalent to the phytoplankton collection points. A total of 66 samples were collected (48 phytoplankton and 18 periphyton). All samples collected were analyzed under optical microscopy, observing a minimum of 30 individuals per species, whose morphological identification were made based on specific and updated literature. 69 cyanobacterial taxa were identified (51 spp., 13 sp., 3 cf., 2 aff.) distributed in 32 genera and 19 families, with the most representative family Oscillatoriaceae with 27 infrageneric taxa identified. Among the identified species and considering only records for mangrove areas, 15 are new occurrences for mangroves and estuaries in Brazil, 22 for the northeast region and 11 for the state of Pernambuco. The number of cyanobacterial species identified in this work, as the new occurrences, demonstrate the large gap in taxonomic studies about cyanobacteria in mangrove areas in tropical regions. In addition, several populations could not be identified at a specific level, which both demonstrates the lack of specific literature for the identification of these taxa, as the possibility of new species, highlighting the importance of producing new taxonomic studies about cyanobacteria in mangrove areas.
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FRANCISCO DIÊGO SOUSA SANTOS
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Phylogenetic, taxonomic, floristic and morphoanatomical studies in Evolvulus L. (Cresseae-Convolvulaceae).
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Leader : MARIA TERESA AURELIANO BURIL VITAL
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MEMBRES DE LA BANQUE :
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JULIANA GASTALDELLO RANDO
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JOMAR GOMES JARDIM
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JOSÉ IRANILDO MIRANDA DE MELO
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LUCAS CARDOSO MARINHO
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MARIA TERESA AURELIANO BURIL VITAL
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Data: 16 août 2022
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Evolvulus is represented by about 100 species, with a predominant distribution in Seasonally Dry Forests of the Neotropical region, with the largest number of species recorded in Brazil (73 species). It is characterized by having two free stylets, each with two filiform or clavate stigmas and glabrous seeds. Its species are grouped into seven sections based on vegetative and inflorescence characters, however, with inconsistent delimitation evidencing their artificiality. In fact, many species of this genus presented problems of taxonomic delimitations and typifications. In this sense, the main objective was to reconstruct the phylogeny of Evolvulus and the ancestral states of morphological characters, in order to test the following hypotheses: (1) Evolvulus is a monophyletic genus; (2) The infrageneric classification system in Evolvulus is artificial. We also aimed to carry out a taxonomic review of the groups that were recovered as monophyletic. For this, phylogenetic reconstruction was performed using nuclear (ITS) and plastid (trnL-F) data produced, mostly, from specimens collected in the field and from herbarium materials. To search for synapomorphies that support the recovered clades, the ancestral reconstruction of 12 characters, vegetative and reproductive, was traced. Seed and leaf anatomical microcharacters were also investigated to ascertain their taxonomic potential and to know the morphoanatomical diversity in Evolvulus. Taxonomic studies were carried out from field collections, analysis of herbarium specimens, consultation of specialized literature and type collections, from which we carried out a taxonomic review of two monophyletic sections and floristic studies concentrated in the Northeast region of Brazil. The results of this thesis are presented in 14 manuscripts. The first manuscript aimed to test the monophyly of Evolvulus and its infrageneric categories, as well as to reconstruct the ancestral character states looking for synapomorphies. The combined Bayesian analysis revealed the monophyly of this genus and the artificiality of most of its most diverse categories, while the reconstruction indicated that many characters used in the taxonomy of the sections evolved independently. In the second and third manuscripts, we present the taxonomic revisions of E. sect. Lagopodini and E. sect. Linoidei, respectively, in which we bring proposals for typifications and synonymizations. The fourth manuscript presents nomenclatural novelties in Evolvulus as a result of studies of type collections and morphological analyzes of species collected in the Northeast region of Brazil. The fifth provides nomenclatural and distribution information on E. chrysotrichos - a rare and endangered species. The sixth, a neotypification, a new synonym for E. saxifragus, and the description of a new species based on morphoanatomical evidence. The seventh and eighth refer to the description of new species, which are accepted by Systematic Botany; the ninth manuscript contains a description of a new species and will be submitted to Brittonia. The tenth and 11th bring floristic studies carried out in the Atlantic Forest of the Northeast region and in the state of Ceará, respectively. The 12th consists of a synopsis of Evolvulus for the Northeast region, with notes on distribution, taxonomy and conservation. The 13th deals with a micromorphological study of Evolvulus seeds in order to investigate additional informative characters to help in the delimitation of morphologically similar species and in the understanding of monophyletic groups. The last one presents a more comprehensive leaf anatomical study of the genus with anatomical study of the genus, in order to know its anatomical diversity and test the taxonomic potential of its characters.
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2
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ANAMARIA SILVA DINIZ
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Effect of macrophytes as habitat on the phytoplankton-zooplankton interaction in the presence of planktivorous fish in tropical reservoirs with different trophic states.
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Leader : ARIADNE DO NASCIMENTO MOURA
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MEMBRES DE LA BANQUE :
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STÉFANO ZORZAL DE ALMEIDA
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JASCIELI CARLA BORTOLINI
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ARIADNE DO NASCIMENTO MOURA
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CIHELIO ALVES AMORIM
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ENIO WOCYLI DANTAS
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Data: 29 août 2022
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The present research aimed to analyze the trophic interaction between phytoplankton, zooplankton and fish in the presence and absence of floating and submerged macrophytes in two tropical reservoirs, located in the Northeast of Brazil, Cursaí and Cajueiro reservoirs. Quarterly samplings were carried out between November/2018 and November/2019 to collect and analyze phytoplankton, zooplankton, fish, floating and submerged macrophytes, nutrients and other abiotic variables. Collections were carried out at nine sampling points in each reservoir: three without macrophytes, three in floating macrophyte banks and three in submerged macrophyte banks. The effect of macrophytes on the taxonomic and functional diversity of phytoplankton was evaluated through taxonomic diversity indices (richness, evenness and Shannon index) and functional diversity (richness - FRic, equitability - FEve and divergence - FDiv). In addition to field monitoring, an in situ experiment was carried out in Cursaí reservoir to evaluate the top-down and bottom-up control promoted by the fish Astyanax lacustris and to analyze the effects of the morphology of floating and submerged macrophytes on trophic interaction. The experiment lasted ten days and consisted of four treatments (n = 3): a control (C) without fish, and treatments with the addition of fish (+F), fish + floating macrophyte (+FFM) and fish + submerged macrophyte (+FSM). In the treatments with macrophytes, artificial plants were added as a refuge for zooplankton and Chaoborus (invertebrate predator). Macrophytes exerted positive effects on taxonomic richness, Shannon index and FDiv in Cajueiro, and negative effects on taxonomic evenness and EFve of phytoplankton in Cursaí. The functional diversity of phytoplankton was negatively influenced by water transparency and positively by total dissolved solids, pH and nitrate in sites with macrophytes. Phytoplankton were classified into functional groups based on size and life form and zooplankton based on type of feeding strategies. Macrophytes favored the increase of bottom-up effects on phytoplankton and zooplankton. In open water, unicellular and flagellated phytoplankton were positively influenced by nitrate and inorganic phosphate, while colonial, filamentous, small, medium and large phytoplankton were positively influenced by total phosphorus and nitrite. Colonial phytoplankton, mainly filamentous cyanobacteria, was positively associated with zooplankton in areas with macrophytes, and flagellated phytoplankton was negatively related in open water areas. The
experiment showed that A. lacustris exerted a top-down effect on zooplankton and a bottom- up effect on phytoplankton, and Chaoborus interfered with the functioning of trophic
networks. The submerged macrophytes were efficient as a refuge for copepods and Chaoborus, while the floating macrophytes favored the increase in the biomass of cyanobacteria, desmids and diatoms. Floating and submerged macrophytes played different roles in interactions between aquatic communities and Astyanax lacustris was a trophic network modifier in the studied reservoirs, as well as Chaoborus which increased trophic levels in Cursaí reservoir to four. Our study contributed to the understanding of the role of macrophytes on trophic interactions and could become an important tool for biomanipulation actions in tropical reservoirs.
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