Filters: Tags: species abundance (X) > partyWithName: U.S. Geological Survey (X)
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In this study our objective was to establish baseline abundance numbers of butterflies and to evaluate a monitoring system that can be used by persons with relatively little experience to assess changes in butterfly abundance. Because butterflies that depend on grasslands use flowering plants as nectar sources and a variety of plant species as larval host plants, nectar and pollen resources are described as well. Associated products: Asher, J., Warren, M., Fox, R., Harding, P., Jeffcoate, G., and Jeffcoate, S., 2001, The millennium atlas of butterflies in Britain and Ireland. Oxford University Press, Oxford, 456 p., https://www.worldcat.org/title/millennium-atlas-of-butterflies-in-britain-and-ireland/oclc/45121710....
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