Subsidies from anthropogenic resources alter diet, activity, and ranging behavior of an apex predator (Canis lupus).
作者： Tyler R. Petroelje , Jerrold L. Belant , Dean E. Beyer , Nathan J. Svoboda
DOI: 10.1038/S41598-019-49879-3
关键词: Apex predator 、 Environmental science 、 Net energy gain 、 Predation 、 Boreal ecosystem 、 Livestock 、 Ecology 、 Foraging 、 Canis 、 Subsidy
摘要: Acquisition of resources can be costly and individuals are predicted to optimize foraging strategies maximize net energy gain. Wolves (Canis lupus) would expected scavenge on subsidies from anthropogenic when these provide an energetic benefit over the capture wild prey. We examined effects in form livestock carcass dumps (LCDs) wolf space use, activity, tortuosity, diet portions North America's northern hardwood/boreal ecosystem. fitted 19 wolves with global positioning system collars during May-August 2009-2011 2013-2015. LCDs within their home ranges used areas adjacent greater than non-LCD sites had decreased activity as compared without ranges. Additionally, cattle comprised at least 22% scavenging present no access LCDs. Subsidies serve attractants for alter diet, ranging behavior. Apex predators may behavior where occur management should considered attempting reduce impacts humans
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