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Linking primates' nutrition to movement ecology

Grant number: 23/01760-0
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): September 01, 2023
Field of knowledge:Biological Sciences - Ecology
Principal Investigator:Laurence Marianne Vincianne Culot
Grantee:Felipe Soares Bufalo
Host Institution: Instituto de Biociências (IB). Universidade Estadual Paulista (UNESP). Campus de Rio Claro. Rio Claro , SP, Brazil
Associated research grant:21/06668-0 - Primate resilience in an anthropogenic landscape, AP.BTA.JP2


On a daily basis, foraging decisions determine primates' movement through an area. However, different dietary strategies (e.g., folivory, frugivory, faunivory) are expected to influence differently the movement of wild species, implying the use of different strategies to maximize the nutrient intake while reducing the costs and risks of traveling and searching for food. Despite the large number of studies concerning primates' nutritional ecology and movement, little attention has been given to how differences among the nutritional values and distribution of resources affect the foraging decisions and hence the daily routes of wild species. Here, we will build an integrated view of the influence of different food resources on the decision-making processes of daily routes and space use in neotropical primates. On a broad scale, we aim to understand how and whether the type of resources affect the route-planning of wild neotropical primates with different dietary strategies. Accordingly, we will gather published and unpublished movement and feeding data to compare the factors responsible for shaping their daily routes. Then, focusing on a frugivorous-faunivorous species, the black lion tamarin (BLT), we will investigate how the decision-making processes on route planning are affected by the environmental contexts throughout BLT's distribution. Locally, we will investigate how the spatial distribution and the nutritional characteristics of fruits influence the BLT's foraging strategies and the patterns of fruit consumption. Finally, using step selection function models, we will evaluate how the combination of the nutritional values of resources and other environmental and social factors (e.g., distance to forest border, presence of conspecifics, risk perception, resource availability and distribution) influence BLT's decision-making processes on route planning and space use in a forest fragment. (AU)

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