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Influence of body mass and environmental conditions on winter mortality risk of a northern ungulate: Evidence for a late-winter survival bottleneck
July 31, 2021
Identifying limiting factors for animals with seasonally dynamic life histories sometimes requires understanding intra-annual periods of resource scarcity (e.g., Ashmole, 1963). For ungulates living in northern environments, winter is generally a period of negative energy budget when forage provides some … read more
Posted in General, Predator/Prey Relationships | Tagged Canis latrans, Canis lupus, cause-specific mortality, Odocoileus virginianus, weather, winter severity index

Wolves choose ambushing locations to counter and capitalize on the sensory abilities of their prey
March 4, 2021
Comprehensive knowledge of ambush behavior requires an understanding of where a predator expects prey to be, which is generally unknowable because ambush predators often hunt mobile prey that exhibit complex, irregular, or inconspicuous movements. Wolves (Canis lupus) are primarily cursorial … read more
Posted in General, Predator/Prey Relationships | Tagged ambush hunting, hunting behavior, hunting mode, predation risk, sit-and-wait predator, wolf predation

Trumpeter Swan Killed by Gray Wolf in Minnesota
January 29, 2020
Canis lupus (Gray Wolf) have been suspected as natural predators of Cygnus buccinator (Trumpeter Swan), but detailed descriptions of such predation events are lacking from the peer-reviewed literature. Herein, we document a Trumpeter Swan that was killed by a Gray … read more
Posted in Biology, General, Predator/Prey Relationships | Tagged killed, minnesota, trumpeter

Species Richness Within an Urban Coyote (Canis latrans) Territory in Atlanta, Georgia, USA
August 30, 2019
Atlanta, GA, USA, has been one of the fastest growing metropolitan areas in the US over the past several decades, with a human population now close to 6 million. Urbanization has been rapid and widespread, thereby creating a highly fragmented … read more
Posted in General, Predator/Prey Relationships | Tagged canis, coyote, latrans, richness, species, urban, within

Age-specific Foraging Strategies Among Pumas, And Its Implications For Aiding Ungulate Populations Through Carnivore Control
July 4, 2019
Humans have been controlling carnivore numbers for centuries. Predator hunting, however, may indirectly influence predator-prey dynamics unintentionally by influencing the age- and sex-structure of predator populations that exhibit intraspecific (IS) variation in prey selection. We tested for IS in a … read more
Posted in General | Tagged aiding, among, foraging, implications, pumas, specific, strategies

Weak Spatiotemporal Response of Prey to Predation Risk in a Freely Interacting System
July 4, 2019
The extent to which prey space use actively minimizes predation risk continues to ignite controversy. Methodological reasons that have hindered consensus include inconsistent measurements of predation risk, biased spatiotemporal scales at which responses are measured and lack of robust null … read more
Posted in General | Tagged freely, interacting, predation, response, spatiotemporal, system