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dc.contributor.author Powell, Jerry A. en
dc.contributor.author Wagner, David L. en
dc.date.accessioned 2011-05-20T19:46:02Z en
dc.date.available 2011-05-20T19:46:02Z en
dc.date.issued 1993 en
dc.identifier.citation Powell, Jerry A. and David L. Wagner. "The Microlepidoptera Fauna of Santa Cruz Island is Less Depauperate than that of Butterflies and Larger Moths." In: 3rd California Islands Symposium. 1987. 189-198. en
dc.identifier.uri http://hdl.handle.net/10139/4009 en
dc.description.abstract Surveys of Lepidoptera on Santa Cruz Island, California, indicate that the fauna of small to minute leaf mining moths from six families are proportionately better represented relative to the nearby mainland fauna, than are larger microlepidopterans (Tortricoidea and phycitine Pyralidae) or macrolepidopterans (Papilionoidea, Hesperioidea, Arctiidae and ennomine Geometridae). Collectively, 71% of the central coast leaf mining species occur on Santa Cruz Island; whereas in the other 5 groups surveyed 30-62% of the mainland fauna are resident. Species with small adults or with larvae that feed internally occur in higher proportion than do large and external feeding Lepidoptera. In three well-sampled host plant genera (Ceanothus, Quercus and Salix) used by both leaf miners and butterflies, 87% of the mainland leaf miner species are recorded for Santa Cruz Island, whereas only 35% of the butterflies are present. We postulate that this disharmony in species richness is due to the smaller areas required to maintain effective populations of leaf mining moths, which enhances the survival rates of these minute insects in small patches of host plant. en
dc.language.iso en_US en
dc.publisher National Park Service en
dc.rights All rights reserved by copyright holder. en
dc.subject butterfly en
dc.subject California Islands en
dc.subject Channel Islands en
dc.subject moth en
dc.title The Microlepidoptera Fauna of Santa Cruz Island is Less Depauperate than that of Butterflies and Larger Moths en
dc.type Article en


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