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Movement-related energy expenditure of black lion tamarins (Leontopithecus chrysopygus) in fragmented habitats

Grant number: 20/10617-9
Support type:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): January 10, 2021
Effective date (End): October 09, 2021
Field of knowledge:Biological Sciences - Ecology - Applied Ecology
Principal researcher:Laurence Marianne Vincianne Culot
Grantee:Gabriela Cabral Rezende
Supervisor abroad: Luca Borger
Home Institution: Instituto de Biociências (IB). Universidade Estadual Paulista (UNESP). Campus de Rio Claro. Rio Claro , SP, Brazil
Research place: Swansea University, Wales  
Associated to the scholarship:17/11962-9 - Habitat use, movement patterns and energy expenditure of black lion tamarins (Leontopithecus chrysopygus) in response to landscape fragmentation, BP.DR


Movement-related energy expenditure reflects how animals fare in altered habitats. The endangered black lion tamarins (BLT), Leontopithecus chrysopygus, can have their movement affected by changes in forest structure due to fragmentation, being good candidates to study the relation between the forest characteristics and movement-related energy expenditure. In this context, Dynamic Body Acceleration (DBA) metrics, obtained from animal-borne accelerometers, are a powerful proxy for assessing energy expenditure. Here, we will 1) validate the DBA method in captive BLTs by combining it with the doubly-labelled water method; 2) compare the energy expenditure related to movement and other behaviours of BLTs in three forested areas with different sizes and structures where wild BLT groups will be monitored using GPS and accelerometer devices. I will segment the movement data from accelerometers in different phases of behaviour that, combined with the GPS data, will derive maps of behaviour allocation in space. I will quantify behaviour-specific energy expenditure and compare it between forest patches, and run behaviour-specific resource selection analyses, using Resource Selection Function methods. Results will help in understanding how the structural configuration of the habitat interferes in the energy amount dispensed for survival-related activities and allow us to propose scientifically-sound guidelines for managing their habitat, in order to lower the energetic cost of movement in forest patches.

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