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dc.contributor.advisorWesterkov, Kim
dc.contributor.authorLalas, Chrisen_NZ
dc.date.available2012-12-14T04:42:58Z
dc.date.copyright1977en_NZ
dc.identifier.citationLalas, C. (1977). Food and feeding behaviour of the Black-fronted tern, Chlidonias hybrida albostriatus. (Thesis, Master of Science). University of Otago. Retrieved from http://hdl.handle.net/10523/3055en
dc.identifier.urihttp://hdl.handle.net/10523/3055
dc.descriptionx, 108 leaves :col. ill. ; 30 cm. Includes bibliographical references. Spine title: Feeding of Black-fronted terns. University of Otago department: Zoology.en_NZ
dc.description.abstractINTRODUCTION This study investigates the relationship between feeding behaviour of an avian predator, the Black-fronted Tern, Chlidoniae hybrid albostrialus (Gray 1845), and the abundance of its prey. Emphasis is placed on predator response to seasonal and daily variations in food supply. During spring and summer the terns are mainly insectivorous, feeding in swallow-like fashion on emerging aquatic insects on or above the surface of shingle-bed rivers and streams. Black-fronted Terns were found appropriate for examining a relationship between predator feeding and prey abundance because foraging was often restricted to one habitat with prey which underwent large diurnal fluctuations in availability. The diet of a predator becomes specialized with respect to prey selection when food is abundant (Emlem, 1966, 1968). Therefore, if a preferred prey species is abundant, the interpretation of prey selection is simplified: the foraging strategy for a specialised diet becomes stereotyped (Gibb, 1958l Baker, 1974). Holling (1959) investigated predation on cocooned sawflies by small mammals and found that in this simplified case predation was affected by only two variables, densities of both predator and prey. He was able to describe the functional response (feeding rate) and numerical response (number) of predators to change in prey density. Responses of Black-fronted Terns to changes in aquatic insect abundance were described in the same way.
dc.format.mimetypeapplication/pdf
dc.language.isoenen_NZ
dc.publisherUniversity of Otagoen_NZ
dc.rightsAll items in OUR Archive are provided for private study and research purposes and are protected by copyright with all rights reserved unless otherwise indicated.en_NZ
dc.titleFood and feeding behaviour of the Black-fronted tern, Chlidonias hybrida albostriatus.en_NZ
dc.typeThesisen_NZ
thesis.degree.disciplineZoologyen_NZ
thesis.degree.nameMaster of Scienceen_NZ
thesis.degree.grantorUniversity of Otagoen_NZ
thesis.degree.levelMastersen_NZ
otago.interloanyesen_NZ
otago.openaccessOpen
dc.identifier.voyager604786en_NZ
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