Moose browsing and soil fertility in the boreal forests of Isle Royale National Park

John J Pastor, B. Dewey, R. J. Naiman, P. F. McInnes, Yosef Cohen

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

The effect of moose browsing on the nutrient cycles of boreal forest was studied using three 40-yr-old enclosures on Isle Royale, Michigan. By examining the mechanisms by which moose affect ecosystems, evidence was found indicating that; in the long term, high rates of moose browsing would depress N mineralization and net primary production through the indirect effects on recruitment into the tree stratum, and subsequent depression at litter N return and litter quality. This suggests that the effects of herbivores on ecosystems may be amplified by positive feedbacks between plant litter and soil nutrient availability.

Original languageEnglish (US)
Title of host publicationNCASI Technical Bulletin
PublisherNCASI
Pages404-405
Number of pages2
Volume2
Edition781
StatePublished - May 1 1999

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