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Title: Population fluctuation in phytophagous insects

We examined how community interactions affect year-to-year population variability in three groups of phytophagous insects: British aphids and moths, and Canadian moths. We first examined how the number of host plant species on which a given phytophagous insect species feeds affects its population variability. Specialist insect species showed a weak tendency to be more variable than generalist species. We then examined how the number of species of parasitoids from which a given phytophagous insects species suffers affects its population variability. Species that are host to few parasitoid species showed a weak tendency to be more variable than species with many parsitoid species. These relationships also depend on other aspects of the life histories of the phytophagous insect species.
Authors:
;  [1]
  1. (Oak Ridge National Laboratory, TN (United States))
Publication Date:
OSTI Identifier:
7016884
Report Number(s):
CONF-940894--
Journal ID: ISSN 0012-9623; CODEN: BECLAG
Resource Type:
Conference
Resource Relation:
Journal Name: Bulletin of the Ecological Society of America; (United States); Journal Volume: 75:2; Conference: Annual Ecological Society of America (ESA) meeting: science and public policy, Knoxville, TN (United States), 7-11 Aug 1994
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; APHIDS; POPULATION DYNAMICS; INSECTS; DIET; MOTHS; PLANTS; ANIMALS; ARTHROPODS; HEMIPTERA; INVERTEBRATES; LEPIDOPTERA 550100* -- Behavioral Biology