Journal
ECOLOGICAL ENTOMOLOGY
Volume 25, Issue 4, Pages 374-379Publisher
WILEY
DOI: 10.1046/j.1365-2311.2000.00273.x
Keywords
Acer negundo; assemblages; assemblage structure; low density species; macrolepidoptera; Salix nigra; scarce species; species diversity; species richness
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1. Most insect species occur at low abundance but a greater research effort has been devoted to so-called outbreak species and little research is available on scarce (low abundance) species that are typical of most insect species. 2. Larval free-feeding macrolepidoptera of two riparian trees Salix nigra (Marsh) (black willow) and Acer negundo L. (box elder) were sampled and sorted by species and abundance. 3. Data collected established that the majority of species in the assemblages in each tree species occurred at low abundance in each of the 5 years when larvae were sampled. 4. Species in the Noctuidae and Geometridae dominated both assemblages. 5. On both trees, assemblages were dominated numerically by relatively few species, a pattern that has been observed for insect assemblages on plants in managed and unmanaged habitats.
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