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 language||English (US)|
|Title of host publication||NCASI Technical Bulletin|
|Number of pages||2|
|State||Published - May 1 1999|