Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 319680
Title Relative importance of vertebrates and invertebrates in epigeaic weed seed predation in organic cereal fields
Author(s) Westerman, P.R.; Hofman, A.; Vet, L.E.M.; Werf, W. van der
Source Agriculture, Ecosystems and Environment 95 (2003)2-3. - ISSN 0167-8809 - p. 417 - 425.
Department(s) Crop and Weed Ecology
Laboratory of Entomology
Publication type Refereed Article in a scientific journal
Publication year 2003
Keyword(s) mice apodemus-sylvaticus - agricultural landscape - postdispersal predation - harpalus rufipes - coleoptera - carabidae - farmland - habitat - maine
Abstract Exclosure trials were conducted in four organic cereal fields in The Netherlands in 1999 and 2000 to determine the relative importance of vertebrates and invertebrates in weed seed predation. The trials showed that seed predation by vertebrates was rather consistent and predictable, occurring on all fields and both years, being low early in the season, increasing towards mid-June and decreasing thereafter. The occurrence and level of seed predation by invertebrates were unreliable and unpredictable over time. Predation by both vertebrates and invertebrates showed no apparent pattern related to field margin. Vertebrates, presumably mice, accounted for the larger part of weed seed consumption (30-88% per fortnight and farrn). Invertebrates, probably granivorous ground beetles, accounted for the smaller part of seed consumption (4-38%). They were the dominant seed predators in only one out of eight cases in July 1999 (74%), and overall contributed little to variability in seed predation
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