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Intraguild Predation, Mesopredator Release, and Prey Stability

Intraguild Predation, Mesopredator Release, and Prey Stability Paper submitted October 5, 1995; revised manuscript accepted October 11, 1995. Second,. the authors suggested that the habitats w h e r e they censused rabbits w e r e roughly comparable. We accept this at a small scale, but believe the authors failed to consider the landscape surrounding those sites (as illustrated in their figure). We p r o p o s e that landscape differences, especially the large amount of human-altered habitats (cropland and planted pine forests) favored mongooses and other small predators (red foxes, wild cats, and genets). Based on body size and life-history differences, these small predators (often p r e y generalists) are probably at an advantage in human-altered landscapes. Top predators (often prey specialists) are usually area-sensitive species that occupy large continuous areas to fulfill their life requisites (Matthiae & Stearns 1981; Wilcove et al. 1986). These wide-ranging carnivores are h a m p e r e d by factors that often a c c o m p a n y landscape changes, such as increased road densities and increased vulnerability to legal and illegal exploitation (Mech et al. 1988). Human-related factors (incidental captures in traps set for other species, collisions with http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Conservation Biology Wiley

Intraguild Predation, Mesopredator Release, and Prey Stability

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Publisher
Wiley
Copyright
Copyright © 1996 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0888-8892
eISSN
1523-1739
DOI
10.1046/j.1523-1739.1996.10020676.x
Publisher site
See Article on Publisher Site

Abstract

Paper submitted October 5, 1995; revised manuscript accepted October 11, 1995. Second,. the authors suggested that the habitats w h e r e they censused rabbits w e r e roughly comparable. We accept this at a small scale, but believe the authors failed to consider the landscape surrounding those sites (as illustrated in their figure). We p r o p o s e that landscape differences, especially the large amount of human-altered habitats (cropland and planted pine forests) favored mongooses and other small predators (red foxes, wild cats, and genets). Based on body size and life-history differences, these small predators (often p r e y generalists) are probably at an advantage in human-altered landscapes. Top predators (often prey specialists) are usually area-sensitive species that occupy large continuous areas to fulfill their life requisites (Matthiae & Stearns 1981; Wilcove et al. 1986). These wide-ranging carnivores are h a m p e r e d by factors that often a c c o m p a n y landscape changes, such as increased road densities and increased vulnerability to legal and illegal exploitation (Mech et al. 1988). Human-related factors (incidental captures in traps set for other species, collisions with

Journal

Conservation BiologyWiley

Published: Apr 1, 1996

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