Predator co‐occurrence in alpine and Arctic tundra in relation to fluctuating prey

L Rød‐Eriksen, ST Killengreen, D Ehrich… - Journal of Animal …, 2023 - Wiley Online Library
Large carnivores influence ecosystem dynamics in multiple ways, for example, by
suppressing meso‐carnivores and providing carrions for smaller scavengers. Loss of large …

Different selection criteria may relax competition for denning sites between expanding red foxes (Vulpes vulpes) and endemic Arctic foxes (Vulpes lagopus) on the …

A Moizan, C Warret Rodrigues, JD Roth - Polar Biology, 2023 - Springer
Climate warming is favoring the expansion of non-native species onto the Arctic tundra,
where they may compete over resources with native species. In the harsh tundra conditions …

Feast to famine: Sympatric predators respond differently to seasonal prey scarcity on the low Arctic tundra

C Warret Rodrigues, JD Roth - Ecology and Evolution, 2023 - Wiley Online Library
Resource fluctuation is a major driver of animal movement, influencing strategic choices
such as residency vs nomadism, or social dynamics. The Arctic tundra is characterized by …

Coexistence of two sympatric predators in a transitional ecosystem under constraining environmental conditions: a perspective from space and habitat use

C Warret Rodrigues, JD Roth - Movement Ecology, 2023 - Springer
Background Range expansion of species, a major consequence of climate changes, may
alter communities substantially due to competition between expanding and native species …

Arctic and red fox population responses to climate and cryosphere changes at the Arctic's edge

JS Verstege, SM Johnson-Bice, JD Roth - Oecologia, 2023 - Springer
Responses of one species to climate change may influence the population dynamics of
others, particularly in the Arctic where food webs are strongly linked. Specifically, changes to …

When species don't move together: Non-concurrent range shifts in Eastern Pacific kelp forest communities

MR Cortese, AL Freestone - Plos one, 2024 - journals.plos.org
Species range shifts due to changing ocean conditions are occurring around the world. As
species move, they build new interaction networks as they shift from or into new ecological …

[HTML][HTML] Foxes engineer hotspots of wildlife activity on the nutrient-limited Arctic tundra

ST Zhao, SM Johnson-Bice, JD Roth - Global Ecology and Conservation, 2022 - Elsevier
Predators largely affect ecosystems through trophic interactions, but they also can have
indirect effects by altering nutrient dynamics and acting as ecosystem engineers. Arctic foxes …

Effects of resource availability and interspecific interactions on Arctic and red foxes' winter use of ungulate carrion in the Fennoscandian low‐Arctic tundra

S Lacombe, R Ims, N Yoccoz, EF Kleiven… - Ecology and …, 2024 - Wiley Online Library
In the Arctic tundra, predators face recurrent periods of food scarcity and often turn to
ungulate carcasses as an alternative food source. As important and localized resource …

Use of space and resources by red foxes and Arctic foxes in a coastal tundra transitional ecosystem

C Warret Rodrigues - 2023 - mspace.lib.umanitoba.ca
Climate change and anthropogenic pressure can strongly impact food webs through
modifications to species' ranges and population foraging strategies, notably altering their …

On the move: spatial ecology and habitat use of red fox in the Trans-Himalayan cold desert

HS Reshamwala, P Raina, Z Hussain, S Khan, R Dirzo… - PeerJ, 2022 - peerj.com
Red fox (Vulpes vulpes) is the most widespread wild carnivore globally, occupying diverse
habitats. The species is known for its adaptability to survive in dynamic anthropogenic …