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Please use this identifier to cite or link to this item: http://hdl.handle.net/11019/1054

Title: The response of sward-dwelling arthropod communities to reduced grassland management intensity in pastures
Authors: Helden, Alvin J.
Anderson, Annette
Finn, John
Purvis, Gordon
Keywords: Rural Environment Protection Scheme (REPS)
Issue Date: 30-Dec-2015
Publisher: Teagasc (Agriculture and Food Development Authority), Ireland
Citation: Helden, A., Anderson, A., Finn, J., et al. (2015). The response of sward-dwelling arthropod communities to reduced grassland management intensity in pastures. Irish Journal of Agricultural and Food Research, 54(2), pp. 107-120. doi:10.1515/ijafr-2015-0012
Series/Report no.: Irish Journal of Agricultural and Food Research;vol 54
Abstract: We compared arthropod taxon richness, diversity and community structure of two replicated grassland husbandry experiments to investigate effects of reduced management intensity, as measured by nutrient input levels (390, 224 and 0 kg/ha per year N in one experiment, and 225 and 88 kg/ha per year N in another). Suction sampling was used to collect Araneae, Coleoptera, Hemiptera and Hymenoptera, with Araneae and Coleoptera also sampled with pitfall trapping. Univariate analyses found no significant differences in abundance and species density between treatments. However, with multivariate analysis, there were significant differences in arthropod community structure between treatments in both experiments. Reducing N input and associated stocking rates, as targeted by agri-environment schemes, can significantly alter arthropod communities but without increasing the number of species present. Other approaches that may be necessary to achieve substantial enhancement of sward arthropod biodiversity are suggested.
Description: peer-reviewed
URI: http://hdl.handle.net/11019/1054
ISSN: 2009-9029
Appears in Collections:IJAFR, volume 54, no 2, 2015

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