Download the full-sized PDF
This file is in the following communities:
|Department of Biological Sciences|
This file is in the following collections:
|Journal Articles (Biological Sciences)|
Prey behavior, age-dependent vulnerability, and predation rates Open Access
- Author or creator
- Additional contributors
- Type of item
- Journal Article (Published)
Variation in the temporal pattern of vulnerability can provide important insights into predator-prey relationships and the evolution of antipredator behavior. We illustrate these points with a system that has coyotes (Canis latrans) as a predator and two species of congeneric deer (Odocoileus spp.) as prey. The deer employ different antipredator tactics (aggressive defense vs. flight) that result in contrasting patterns of age-dependent vulnerability in their probability of being captured when encountered by coyotes.We use longterm survival data and a simple mathematical model to show that (1) species differences in age-dependent vulnerability are reflected in seasonal predation rates and (2) seasonal variation in prey vulnerability and predator hunt activity, which can be associated with the availability of alternative prey, interact to shape seasonal and annual predation rates for each prey species. Shifting hunt activity from summer to winter, or vice versa, alleviated annual mortality on one species and focused it on the other. Our results indicate that seasonal variation in prey vulnerability and hunt activity interact to influence the impact that a predator has on any particular type of prey. Furthermore, these results indicate that seasonal variation in predation pressure is an important selection pressure shaping prey defenses.
- Date created
- License information
- Copyright 2008 by The University...
- Citation for previous publication
Lingle, S., Feldman, A., Boyce, M. S., & Wilson, W. F. (2008). Prey behavior, age-dependent vulnerability, and predation rates. The American naturalist, 172(5), 712-725. The University of Chicago Press for The American Society of Naturalists. DOI: 0003-0147/2008/17205-42726$15.00
- Link to related item
- Date Uploaded
- Date Modified
- Audit Status
- Audits have not yet been run on this file.
File format: pdf (Portable Document Format)
Mime type: application/pdf
File size: 266902
Last modified: 2015:10:12 15:31:50-06:00
Original checksum: 9956a5bf9839600a17a8cb65578038e6
Well formed: false
Status message: Unexpected error in findFonts java.lang.ClassCastException: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject cannot be cast to edu.harvard.hul.ois.jhove.module.pdf.PdfDictionary offset=2628
Status message: Invalid Annotation list offset=4470
File title: Prey Behavior, AgeDependent Vulnerability, and Predation Rates.
File language: en