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Influences of Chronic and Current Season Grazing by Collared Pikas on Above-Ground Biomass and Species Richness in Subarctic Alpine Meadows

Dates

Year
2005

Citation

McIntire, Eliot J. B., and Hik, David S., 2005, Influences of Chronic and Current Season Grazing by Collared Pikas on Above-Ground Biomass and Species Richness in Subarctic Alpine Meadows: Oecologia, v. 145, no. 2, p. 288-297.

Summary

We studied an alpine herbivory gradient established by collared pikas, a small central place foraging lagomorph, to examine the effects of multiple grazing levels on above-ground live biomass (AGB) and species richness (SR) in alpine tundra. The effects of within-season (four sampling periods), multi-season (across three summers) and longer-term dynamics (inferred from spatial location of vegetation with respect to pika haypiles) were examined. Along the grazing gradient, we found support for and against hypotheses that propose biphasic, increasing, or decreasing responses to herbivory, both in terms of AGB and SR. Our results suggest that plant--herbivore predictability is still weak. To further examine the impact of herbivory, we [...]

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End Note
Reference Item
3397 record import test
Reference File
NWBLCC-20160406.xml

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Type Scheme Key
ISSN http://sciencebase.gov/vocab/identifierScheme 00298549

Citation Extension

journalOecologia
parts
typeNotes
value5572
typePages
value288-297
typeVolume
value145
typeNumber
value2
citationTypeJournal Article

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