Banca de DEFESA: ITALO FERREIRA PEREIRA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : ITALO FERREIRA PEREIRA
DATE: 27/08/2024
TIME: 10:00
LOCAL: On line
TITLE:

Paths in the Forest: Habitat Use by Blond capuchin Monkeys (Sapajus flavius) in an Fragment of Atlantic Forest in Caaporã, PB.

KEY WORDS:

Foraging strategy; Home range; Platyrrhine; Management and conservation.

PAGES: 61
BIG AREA: Ciências Humanas
AREA: Psicologia
SUMMARY:

This study investigates the space use by a group of approximately 130 blond capuchin monkeys (Sapajus flavius) inhabiting a 270-hectare fragment of the Atlantic Forest located in Caaporã, PB. The research is based on a database collected from 2014 to 2023 by the research group, including 39 months of complete data, with information on animal behavior and location, as well as the monthly productivity of fruits and insects within the fragment. A total of 26,243 GPS points were used to calculate the total area of use and core area, analyzing the variation in space use by the group over the months. In this study, we investigated the hypothesis that space use is influenced by food availability and temperature. We tested the following predictions: P1 - Due to the low food supply in the area, the animals will use an energy-minimizing strategy, reducing the home range and altering their diet to alternative items during months with lower productivity of fruits (preferred food). P2 - In months with higher temperatures, the group will cover a smaller area (smaller total home range and core range) as a strategy to avoid body overheating. We found that the home range comprised 100% of the monitored area, while the core range accounted for only 15%, indicating a limitation in total space and a low proportion of preferred locations within the fragment. Two seasons could be defined, with February and March as high productivity months and the rest of the year as low productivity in terms of fruit availability. A statistically significant value was observed in the Fruit Availability Index (FAI) (β = 10.447, p = 0.028), indicating that the blond capuchin monkeys are employing an energy-minimizing strategy. Minimum temperature showed marginally significant effects on both the MCP area (β = 5.584, p = 0.084) and HR95 (β = 3.688, p = 0.066) and HR50 (β = 0.871, p = 0.083), but in the opposite direction to what was predicted, with minimum temperature showing a positive correlation with the indicators used for the area of use. Since blond capuchin monkeys are one of the few remaining medium-sized species that perform zoochorous dispersal of larger fruits, understanding the factors that guide their foraging strategies, and the consequences of these strategies, is important for management, especially in fragmented areas.

COMMITTEE MEMBERS:
Presidente - 2696495 - RENATA GONCALVES FERREIRA
Interna - 1350337 - FIVIA DE ARAUJO LOPES
Externa à Instituição - MARIA ADELIA BORSTELMANN DE OLIVEIRA - UFRPE