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dc.contributor.authorPowell, Jerry A.
dc.date.accessioned2020-09-03T11:18:06Z
dc.date.available2020-09-03T11:18:06Z
dc.identifier.urihttps://scholar.oxy.edu/handle/20.500.12711/9391
dc.description.abstractAn earwig, 2 moths, and 2 butterflies not recorded in 1939^1 and 1966-69 surveys of S.C.I, insects, became established during 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 50-100 years S.C.I, has had their weedy hostplants. It is hypothesized that such species periodically colonize, are eliminated during stress such as overgrazing by feral sheep in drought years, then recolonize. An undersaturated nature of the insect fauna of offshore islands, especially badly perturbed ones, is proposed. Extinction presumably is higher than natural, immigration low, and/or colonization improbable owing to reduced patch sizes of native hostplants.
dc.subjectDermaptera
dc.subjectLepidoptera
dc.subjectNewly Established
dc.subjectRecolonized
dc.subjectSanta Cruz Island
dc.titleFive Insects Believed to be Newly Established or Recolonized on Santa Cruz Island, California (Dermaptera, Lepidoptera)
dc.title.alternativeFive Insects Believed to be Newly Established or Recolonized on Santa Cruz Island
dc.typearticle
dc.abstract.formatonep
dc.source.beginpage97
dc.source.issuescas/vol79/iss3
dc.source.issue3
dc.identifier.legacyhttps://scholar.oxy.edu/scas/vol79/iss3/10
dc.source.endpage108
dc.source.peer_reviewedTRUE
dc.source.statuspublished
dc.source.volume79
dc.source.journaltitleScas: Bulletin of the Southern California Academy of Sciences


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