African wild dogs

Leveraging machine learning and accelerometry to classify animal behaviors with uncertainty

Publications /

Animal-worn sensors, especially accelerometers, are increasingly used with machine-learning models to identify animal behaviors. These tools often struggle with uneven training data, uncertain predictions, and noisy results. To address these issues, Dr. Rafiq and Dr. Abrahms, with their collaborators, developed an open-source method that combines machine learning and statistical techniques to improve behavior classification and to provide “prediction sets,” which […]

Field updates: Botswana, August-October 2025

Abrahms Lab, Updates from the Field /

Written by Dr. Kasim Rafiq and graduate student Marie-Pier Poulin of the Abrahms LabAll research and photographs are done in compliance with IACUC-approved protocols, and have been permitted through the appropriate permits. Over the past few months, we have been busy collecting data on African carnivores at Dog Camp, the Botswana-based bush camp of our long-term collaborators Wild Entrust’s Botswana

An African wild dog looks towards the camera through green leaves.

Wild canids and felids differ in their reliance on reused travel routeways

Publications /

Dr. Briana Abrahms and Dr. Kasim Rafiq, along with many collaborators, published this study in PNAS earlier this fall. Animals move through their environments in many different ways, and these movement patterns affect things like hunting, finding mates, and spreading diseases. This study looked at GPS data from over 1,200 wild carnivores—16 canid (dog-like) and 18 felid (cat-like) species from

Field updates: Botswana, June – July 2025

Abrahms Lab, Updates from the Field /

Post written by Marie-Pier Poulin Graduate student Marie-Pier Poulin scans for animal tracking collars in the Okavango Delta. Photo credit: Leigh West In mid-June, PhD candidate Leigh West, postdoctoral researcher Dr. Kasim Rafiq, and graduate student Marie-Pier Poulin arrived at Dog Camp, the Botswana-based bush camp of our long-term collaborators Wild Entrust’s Botswana Predator Conservation. Over the past month, we

Intraguild competition mediates human avoidance in an endangered African large carnivore

Publications /

Excerpt from the abstract: Here, we examined the spatial behaviour of two sympatric large carnivore species exhibiting intense intraguild competition—lions and African wild dogs—to investigate whether intraguild competition mediates large carnivore responses to human disturbance in support of the anthropogenic refuge hypothesis. We found that lions consistently avoided human-dominated areas. Similarly, we found that wild dogs generally avoided human-dominated areas,

Meet Marie-Pier

Abrahms Lab, Meet CES /

Welcome to Meet CES, where we get to meet the people behind the Center for Ecosystem Sentinels. In this first post we are meeting one of the newest members of the team, Marie-Pier Poulin. She received her BS in Biology from the Université du Québec in Rimouski in 2019, where she tracked arctic foxes in the Canadian tundra for her

Grad student Leigh West published first article as lead author

Abrahms Lab, News /

Congratulations to Leigh West, Dr. Abrahms’s graduate student, who just recently published her first article as lead author. Her research article, “Droughts reshape apex predator space use and intraguild overlap,” was published in the Journal of Animal Ecology on October 4th, and also serves as the second chapter of her dissertation. This is an exciting milestone for Leigh as she

Droughts reshape apex predator space use and intraguild overlap

Publications /

From the Abstract:Droughts are increasing in frequency and severity globally due to climate change, leading to changes in resource availability that may have cascading effects on animal ecology. Although several studies have demonstrated the ecological impacts of drought, the behavioural responses of individuals that scale up to these broader-scale effects are not well known, particularly among animals in top trophic

Scale at the interface of spatial and social ecology

Publications /

From the abstract: “We propose three key innovations that incrementally build upon each other […] These conceptual innovations cast our understanding of the relationships between social and spatial dimensions of animal ecology in a new light, allowing a more holistic understanding and clearer hypothesis development for animal behaviour.” Authors: Simona Picardi, Briana L. Abrahms and Jerod A. MerkleJournal: Philosophical Transactions

World African Wild Dog Day

News /

Happy World African Wild Dog Day! While most people know the Center for Ecosystem Sentinels for our work on penguins, we also research African Wild Dogs. In fact, Dr. Kasim Rafiq and graduate students Leigh West and Marie-Pier Poulin are just returning from Botswana right now! As usual, they worked alongside our collaborators from Botswana Predator Conservation over the summer.

Ecosystem Sentinels as Early-Warning Indicators in the Anthropocene

Publications /

Authors: Elliott L. Hazen, Matthew S. Savoca T.J. Clark-Wolf, Max Czapanskiy, Peter M. Rabinowitz, and Briana AbrahmsJournal: Annual Review of Environment and ResourcesDOI: https://doi.org/10.1146/annurev-environ-111522-102317 “Sentinel species, from birds to invertebrates, have been used to provide insights into ecosystem function, as leading indicators of risk to human health and as harbingers of future change, with implications for ecosystem structure and function.

WRF Symposium

Abrahms Lab, News /

Dr. Kasim Rafiq recently presented his work on using animal-worn sensors to understand the impacts of environmental change on African wild dogs and lions at the Washington Research Foundation Symposium, who fund his position at the university. As part of this work, over the past two years, Kasim, Leigh West, and Dr. Briana Abrahms developed and deployed fitness trackers for

Welcome Marie-Pier and Meredith!

Abrahms Lab, News /

The Abrahms Lab is growing! This fall we will have two new grad students join us in the Center: Meredith HonigPenguin Camp Meredith is interested in how species interactions shape ecological communities and wildlife population dynamics, especially in the implications of global climate change on these processes. She received a BS in Wildlife and Conservation Biology from the University of

Abrahms Lab featured in AppleTV’s “EarthSounds”

Abrahms Lab, News /

If you ever wondered how we use acoustic collars to gain insights into the daily lives of African wild dogs, watch the new nature documentary series EarthSounds on AppleTV! Dr. Briana Abrahms and postdoc Dr. Kasim Rafiq were scientific consultants on the show, while Dr. Rafiq’s and grad student Leigh West‘s research was featured in the episode “Listening to Our

Increasing ambient temperatures trigger shifts in activity patterns and temporal partitioning in a large carnivore guild

Publications /

Authors: Kasim Rafiq, Neil R. Jordan, Krystyna Golabek, John W. McNutt, Alan Wilsonand, Briana AbrahmsJournal: Proceedings of the Royal Society: Biological SciencesDOI: https://doi.org/10.1098/rspb.2023.1938 Shifts in species’ interactions are implicated as an important proximate cause underpinning climate-change-related extinction. However, there is little empirical evidence on the pathways through which climate conditions, such as ambient temperature, impact community dynamics… Photo credit: Krystyna

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