Lancaster EPrints

Human-induced changes in densities of large herbivorous mammals : consequences for the decomposer subsystem.

Wardle, David A. and Bardgett, Richard D. (2004) Human-induced changes in densities of large herbivorous mammals : consequences for the decomposer subsystem. Frontiers in Ecology and the Environment, 2 (3). pp. 145-153. ISSN 1540-9295

Full text not available from this repository.

Abstract

Work on the impacts of herbivores on ecosystems has traditionally focused on aboveground effects, but a growing number of ecologists are beginning to consider how herbivores affect belowground organisms and processes. Human activity has caused considerable changes in densities of mammalian herbivores throughout the world, through the introduction of herbivores to new regions, the creation of conditions that promote high herbivore densities, and the reduction of their population sizes, sometimes to the point of extinction. These human influences on high mammal densities can have major effects on the decomposer subsystem. Whether these effects are positive or negative depends on the mechanisms involved: for example, whether the changes are in the quantity or quality of the decomposers' resources or in the pathway of vegetation succession. In turn, these belowground effects may influence aboveground biota by altering the supply of available nutrients from the soil. Changes in large mammal densities through human activity may represent an important, though frequently underappreciated, element of global change.

Item Type: Article
Journal or Publication Title: Frontiers in Ecology and the Environment
Subjects: Q Science > QH Natural history > QH301 Biology
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 10261
Deposited By: Prof Richard Bardgett
Deposited On: 10 Jul 2008 16:50
Refereed?: Yes
Published?: Published
Last Modified: 17 Sep 2013 10:48
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/10261

Actions (login required)

View Item