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Please use this identifier to cite or link to this item: http://www.lsln.net.au/jspui/handle/1/14017
Type: journalArticle
Title: Predators indirectly protect tundra plants by reducing herbivore abundance
Authors: Hambäck, P.A.
Oksanen, L.
Ekerholm, P.
Lindgren, A.
Oksanen, T.
Schneider, M.
Year: 2004
Citation: Volume: 106
Issue: 1
Abstract: The role of predators in controlling herbivores and indirectly affecting plant abundance is controversial, and some have argued that such trophic cascades are rare in terrestrial habitats. To examine the potential of trophic cascades in a shrubby tundra ecosystem, vole densities, plant damage and plant cover were examined in areas with and without small mammal predators. On islands without predators, vole densities and plant damage were upto five times higher compared with predator-rich mainland habitats. As a consequence, the abundance of three out of five dwarf shrub species was substantially reduced on predator-free islands, providing evidence for strong cascading effects in a rather large-scale terrestrial system. Herbs on the other hand were not affected by the increased herbivory on islands. This suggests that the strength of trophic cascades also depends on the interaction between plant type and seasonality.
Zotero ID: 4JE4QXCR
URL: http://onlinelibrary.wiley.com/doi/10.1111/j.0030-1299.2004.13029.x/abstract
URL: http://www.lsln.net.au/jspui/handle/1/14017
ISSN: 1600-0706
DOI: 10.1111/j.0030-1299.2004.13029.x
Journal Title: Oikos
Geo Location: none
Appears in Collections:North Coast Local Land Services

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