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From process to pattern: how fluctuating predation risk impacts the stress axis of snowshoe hares during the 10-year cycle

Dates

Year
2011

Citation

Sheriff, Michael J., Krebs, Charles J., and Boonstra, Rudy, 2011, From process to pattern: how fluctuating predation risk impacts the stress axis of snowshoe hares during the 10-year cycle: Oecologia, v. 166, no. 3, p. 593-605.

Summary

Predation is a central organizing process affecting populations and communities. Traditionally, ecologists have focused on the direct effects of predation--the killing of prey. However, predators also have significant sublethal effects on prey populations. We investigated how fluctuating predation risk affected the stress physiology of a cyclic population of snowshoe hares (Lepus americanus) in the Yukon, finding that they are extremely sensitive to the fluctuating risk of predation. In years of high predator numbers, hares had greater plasma cortisol levels at capture, greater fecal cortisol metabolite levels, a greater plasma cortisol response to a hormone challenge, a greater ability to mobilize energy and poorer body condition. [...]

Contacts

Tags

Provenance

Data source
File Processing
File Process
Type
End Note
Reference Item
3397 record import test
Reference File
NWBLCC-20160406.xml

Additional Information

Identifiers

Type Scheme Key
DOI http://sciencebase.gov/vocab/identifierScheme 10.1007/s00442-011-1907-2
ISSN http://sciencebase.gov/vocab/identifierScheme 0029-8549

Citation Extension

journalOecologia
parts
typeNotes
value718
typePages
value593-605
typeVolume
value166
typeNumber
value3
citationTypeJournal Article

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