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Author Willason, S. W.
Source CiteSeerX
Content type Text
File Format PDF
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Terrestrial Hermit Crab ♦ Enewetak Atoll ♦ Carrion Removal ♦ Marshall Island ♦ Activity Pattern ♦ Hermit Crab ♦ Feeding Activity ♦ Food Item ♦ Useful Role ♦ Potential Impact ♦ Coeno-bita Perlatus ♦ Great Number ♦ Terres-trial Ecology ♦ Small Coenobita ♦ Principal Native Terrestrial Fauna ♦ Many Islet ♦ Number Offly Maggot ♦ Field Experiment ♦ Fly Maggot ♦ Alleged Importance ♦ Coenobita Feeding ♦ Inhabited Islet ♦ Potential Impor-tance ♦ Potential Fly Breeding Site ♦ Genus Worldwide ♦ Little Effect ♦ Rapid Removal
Abstract ABSTRACT: Terrestrial hermit crabs (Coenobita spp.) were observed feeding on a variety of food items corresponding with observations on the genus worldwide. A field experiment was conducted which examined (1) the feeding activity of Coenobita in two habitats and (2) their potential impact on the removal of carrion and on the colonization of carrion by fly maggots. Habitat and time of day influenced the size and species of Coenobita feeding. Large C. perlatus fed only at night and had the greatest impact on the carrion. Although small Coenobita had little effect on the carrion, their feeding activity did reduce the number offly maggots in the carrion. The scavenging activity of hermit crabs may serve a useful role on inhabited islets. The rapid removal of carrion would reduce potential fly breeding sites. TERRESTRIAL HERMIT CRABS, primarily Coeno-bita perlatus, C. rugosus, and C. brevimanus, are the principal native terrestrial fauna on many islets at Enewetak Atoll (11°30 ' N 162°10 ' E). Few studies are available con-cerning the feeding habits of these crabs, de-spite their great numbers on some islets (Page and Willason 1982), the alleged importance of hermit crab feeding activity to atoll terres-trial ecology (Niering 1956, 1963; Degener and Gillaspy 1955), and the potential impor-tance of hermit crabs to man as consumers of carrion (Wiens 1962). Studies of the feeding habits of Coenobita have been confined primarily to observations of food items
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study
Learning Resource Type Article