Project properties

Title URGENT - Trinidad - field work in the Caribbean
Group Behavioural Ecology
Project type thesis
Credits 24/36
Supervisor(s)
Examiner(s) Alexander Kotrschal
Contact info alexander.kotrschal@wur.nl
Begin date 2020/03/01
End date 2022/04/01
Description Predation is a ubiquitous part of nature, shaping the life history, morphology and behaviour of prey. This is particularly well studied in guppies, where the presence of predators leads to a suite of changes for higher fecundity, growth rates and cognitive abilities. These traits all appear generally beneficial, so why don't low predation fish also evolve these traits? Understanding the maintenance of the low predation phenotype may only be possible when considering how predators shape the surrounding environment. Namely, predators reduce guppy densities and increase food availability. During your research project, we will sample guppies from natural Trinidadian streams, contrasting in predation risk. Fish will then be raised under food availability manipulations to better understand how energetic constraint mediate predator-prey dynamics. You will collect data over the first four weeks of individuals lives, to track growth rates and development of behaviour , before dissecting and quantifying of expensive brain and gut tissues.
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