Resources » Biology
Resources ≀ Biology

Gray wolf mortality patterns in Wisconsin from 1979 to 2012
May 5, 2022
Starting in the 1970s, many populations of large-bodied mammalian carnivores began to recover from centuries of human-caused eradication and habitat destruction. The recovery of several such populations has since slowed or reversed due to mortality caused by humans. Illegal killing … read more
Posted in Biology, Resources | Tagged Anthropogenic mortality, carnivore, conflict, illegal killing, poaching, sampling bias, take

Metabarcoding of fecal DNA shows dietary diversification in wolves substitutes for ungulates in an island archipelago
November 29, 2021
Although ungulates are the main prey of wolves (Canis lupus) throughout their range, substantial dietary diversity may allow wolves to persist even when ungulates are declining or rare. Alexander Archipelago wolves (Canis lupus ligoni) inhabit distinct mainland and island biogeographic … read more
Posted in Biology | Tagged Alexander Archipelago, Canis lupus, dietary niche breadth, Enhydra lutris, foraging ecology, non-invasive sampling, predator–prey ecology, scat

Interference competition between wolves and coyotes during variable prey abundance
July 31, 2021
Interference competition occurs when two species have similar resource requirements and one species is dominant and can suppress or exclude the subordinate species. Wolves (Canis lupus) and coyotes (C. latrans) are sympatric across much of their range in North America … read more
Posted in Biology | Tagged activity, coyote, Diet, interference competition, Space use, Wolf

Human disturbance causes widespread disruption of animal movement
March 4, 2021
Disturbance and habitat modification by humans can alter animal movement, leading to negative impacts on fitness, survival and population viability. However, the ubiquity and nature of these impacts across diverse taxa has not been quantified. We compiled 208 studies on … read more
Posted in Biology

Wolves Demonstrate Self-Awareness in Sniff Test
January 30, 2021
Grey wolves pass an olfactory version of the mirror test for self-recognition. Since the 1970s, scientists have employed the mirror test as an assay of self-awareness. If an animal or child recognizes themselves in a mirror — for instance, touching … read more
Posted in Biology

Stable isotopes, ecological integration and environmental change: wolves record atmospheric carbon isotope trend better than tree rings
November 30, 2020
Large-scale patterns of isotope ratios are detectable in the tissues of organisms, but the variability in these patterns often obscures detection of environmental trends. We show that plants and animals at lower trophic levels are relatively poor indicators of the … read more
Posted in Biology | Tagged ecological integrator, palaeoenvironment, stable isotopes, Wolf