Five insects believed to be newly established or recolonized on Santa Cruz Island, California (Dermaptera, Lepidoptera)
Powell JA. 1980. Five insects believed to be newly established or recolonized on Santa Cruz Island, California (Dermaptera, Lepidoptera). Bulletin of the Southern California Academy of Sciences. 79(3):97-108
An earwig, 2 moths, and 2 butterflies became established 1969-78. Evidence suggests that 3 were introduced by man. Sudden appearance of the butterflies, however, is not easily interpreted. Either might have immigrated often during the 50-100 years Santa Cruz Island has had their weedy hostplants. Such species probably periodically colonize, are eliminated during stress, then recolonize. An undersaturated nature of the insect fauna of the California Islands is proposed. Extinction is apparently high, immigration low, and/or colonization reduced.
- Type
- Journal Article
- Authors
- Powell, Jerry
- Units
- CHIS
- Keywords
- Animal Studies, cabbage white butterfly (Artogeia [=Pieris] rapae), Establishment (Species), Exotic Species, Extinction, Forficula auricularia (Dermaptera: Forficulidae), Laetilia coccidivora (Lepidoptera: Pyralidae), omnivorous leaf roller (Platynota stultana), Santa Cruz Island Channel Islands National Park CA, western checkered skipper (Pyrgus communis albescens)