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Reciprocal effects of host plant and natural enemy diversity on herbivore suppression: An empirical study of a model tritrophic system

Article Abstract:

The results of an empirical study of a model, tritrophic food web in which it manipulated the diversity of host plant species and natural enemy species of a widespread herbivorous pest in laboratory microcosms are reported. However the findings suggest that population sizes in nature, and biotic controls over insect pests, are influenced by species diversity at multiple trophic levels.

Author: Ives, Anthony R., Cardinale, Bradley J., Aquilino, Kristin M.
Publisher: Blackwell Publishers Ltd.
Publication Name: Oikos
Subject: Environmental issues
ISSN: 0030-1299
Year: 2005
Biological diversity, Biodiversity, Insect-plant relationships, Phytophagous insects

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The structure and stability of model ecosystems assembled in a variable environment

Article Abstract:

The assembly of model communities under varying levels of environmental variability was simulated to explore how environmental variability might create non-random community structure. The overall results reveal that environmental variability affects both structure and stability properties of assembled communities.

Author: Ives, Anthony R., Lehmann-Ziebarth, Nicolas
Publisher: Blackwell Publishers Ltd.
Publication Name: Oikos
Subject: Environmental issues
ISSN: 0030-1299
Year: 2006
Wisconsin, Environmental aspects, Biotic communities, Ecological balance

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