Meet our grantees

Wild Animal Initiative funds academic research on high-priority questions in wild animal welfare.

The goal of our grants program is to fund research that deepens scientific knowledge of the welfare of wild animals in order to better understand how to improve the welfare of as many wild animals as possible, regardless of what causes the threats to their well-being.

We showcase our grantees and their projects here and continuously update this page as new projects are added.

Empirical assessment of welfare in wild American mink and Eurasian otters: the effects of intra- and inter-specific population density

Grantees: Lauren A Harrington, Maria Diez Leon

Institutions: Oxford University

Project summary

This project seeks to determine whether the welfare of American mink is negatively impacted in the presence of high densities of Eurasian otters, whether both species’ welfare is compromised at relatively higher densities of conspecifics, and whether there is a seasonality to welfare impacts. The project will also assess whether behavioral time budget shifts in mink are associated with higher chronic stress levels as a proxy for negative impact on mink welfare. These questions will be addressed by measuring welfare through several different domains, including behavioral (exploratory behavior, vocalizations), physical (body condition, ectoparasite load), and physiological (telomere length, fecal glucocorticoid metabolites and hair cortisol) metrics.

Grantees: Lauren A. Harrington, Maria Diez Leon

 

Institutions: Oxford University, United Kingdom

Grant amount: $162,257

 

Grant type: Challenge grants

Focal species: American mink (Neovison vison), Eurasian otter (Lutra lutra)

 

Conservation status: Near threatened

Disciplines: Animal welfare science, community ecology, wildlife management

 

Research location: United Kingdom


Project summary

This project seeks to determine whether the welfare of American mink (Neovison vison) is negatively impacted in the presence of high densities of Eurasian otters (Lutra lutra), whether both species’ welfare is compromised at relatively higher densities of conspecifics, and whether there is a seasonality to welfare impacts. The project will also assess whether behavioral time budget shifts in mink are associated with higher chronic stress levels, as a proxy for negative impact on mink welfare. These questions will be addressed by measuring welfare through several different domains, including behavioral (exploratory behavior, vocalizations), physical (body condition, ectoparasite load), and physiological (telomere length, fecal glucocorticoid metabolites and hair cortisol) metrics. 

Why we funded this project

This project has the potential to contribute significant information to the understanding of intra-specific density-dependent welfare and to the understanding of network effects among predator-prey and competitor interactions of wild animals. Its unusually diverse set of welfare metrics will allow for cross-validation, strengthening both this project and other projects applying the same metrics. The investigators each have a strong background in animal welfare and have made efforts to better align their work with  Wild Animal Initiative’s priorities for wild animal welfare, which makes them good candidates to carry forward the validation of these welfare indicators (particularly telomere attrition, which is still relatively immature in its use as a welfare indicator).

Find Maria’s other project, studying European minks, here.


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