Banca de DEFESA: TAYSA ALVES ROCHA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : TAYSA ALVES ROCHA
DATE: 22/02/2022
TIME: 14:00
LOCAL: Google Meet
TITLE:

Evaluation of capture methods for tegu (Salvator merianae) in the Fernando de Noronha archipelago, Pernambuco.

KEY WORDS:

lizard, conservation, invasive species.

PAGES: 42
BIG AREA: Ciências Agrárias
AREA: Medicina Veterinária
SUBÁREA: Medicina Veterinária Preventiva
SPECIALTY: Epidemiologia Animal
SUMMARY:

The tegu (Salvator merianae), the largest lizard in South America, in Fernando de Noronha is an invasive species and its management in the archipelago is extremely important, due to predation and competition of this species with local, endemic and/or threatened fauna, possibility of transmission of pathogens and seed dispersal of invasive plants. The objective of this research is to evaluate and compare the best capture strategy for tegu management in the Fernando de Noronha Archipelago, Pernambuco State, Brazil. For this purpose, two types of traps were used (PVC tube funnel and live Tomahawk trap) interspersed in a 200m² forest fragment with an interval of 50m between them and two types of baits (chicken pieces and wet cat food in sachets) to compare the most efficient trap and bait in catching tegus. In total, 60 tegus were captured, of which 47 (78%) were captured in Tomahawk-type traps and 13 desired (21.7%) in funnel-type traps made of PVC tube. Regarding the use of baits, 35 Chis (58.3%) were captured in chicken bait traps and 25 Chis (41.7%) in wet cat food traps. In addition, physicochemical containment and biometrics of captured animals were carried out to assess and monitor the pattern of species on the island. There was no statistically significant association between the type of trap (funnel made of PVC tube and Tomahawk) and the type of bait used (chicken pieces and wet cat food) (χ2 = 2.36; p = 0.12), however, capture success was greatest in the Tomahawk trap, regardless of the bait used. This work was the first to compare methods of capture of this species on the island of Fernando de Noronha, allowing to evaluate the cost of hours and sampling effort needed to implement a broad tegus management program in this archipelago and to indicate management measures with the intention of improving the conservation of the island's biodiversity.

BANKING MEMBERS:
Presidente - 1513944 - JEAN CARLOS RAMOS DA SILVA
Externa ao Programa - 2365913 - JOZELIA MARIA DE SOUSA CORREIA
Externo à Instituição - PAULO ROGERIO MANGINI