Territoriality drives preemptive habitat selection in recovering wolves: Implications for carnivore conservation

The Journal of Animal Ecology
Shawn T O'NeilJoseph K Bump

Abstract

According to the ideal-free distribution (IFD), individuals within a population are free to select habitats that maximize their chances of success. Assuming knowledge of habitat quality, the IFD predicts that average fitness will be approximately equal among individuals and between habitats, while density varies, implying that habitat selection will be density dependent. Populations are often assumed to follow an IFD, although this assumption is rarely tested with empirical data, and may be incorrect when territoriality indicates habitat selection tactics that deviate from the IFD (e.g. ideal-despotic distribution or ideal-preemptive distribution). When territoriality influences habitat selection, species' density will not directly reflect components of fitness such as reproductive success or survival. In such cases, assuming an IFD can lead to false conclusions about habitat quality. We tested theoretical models of density-dependent habitat selection on a species known to exhibit territorial behaviour in order to determine whether commonly applied habitat models are appropriate under these circumstances. We combined long-term radiotelemetry and census data from grey wolves Canis lupus in the Upper Peninsula of Michigan, USA to...Continue Reading

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Dec 13, 2019·Royal Society Open Science·Shawn T O'NeilJoseph K Bump

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Citations

Sep 23, 2020·The Journal of Animal Ecology·Tal AvgarJohn M Fryxell
Feb 14, 2021·Scientific Reports·Ellen E BrandellPeter J Hudson

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