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dc.contributor.authorSchmechel, F.
dc.contributor.authorPaterson, Adrian M.
dc.date.accessioned2010-04-13T02:05:17Z
dc.date.issued2005-05
dc.identifier.isbn0-478-22683-7en
dc.identifier.issn1176-8886en
dc.identifier.urihttps://hdl.handle.net/10182/1640
dc.description.abstractThe Chatham Island oystercatcher (Haematopus chathamensis) is an endangered shorebird endemic to the Chatham Islands, New Zealand. In the late 1980s the population was estimated at less than 110 individuals and was feared to be declining. The objectives of this study were to collect information on breeding ecology and to determine habitat selection at the general and territorial scales to assist conservation management. Research on Chatham Island oystercatcher (CIO) breeding biology and habitat use was conducted for three seasons between 1994 and 1997 on Chatham Island. Breeding effort was high, with 98% of pairs attempting to breed (n = 42 pair-seasons). Productivity averaged 0.44 fledglings/pair/season. Flooding was the main cause of egg loss (48%). Offspring were evicted (or dispersed) from their natal territories about 33 days after fledging. Over-winter habitat is probably not a critically limiting factor based on the high survivorship rates of first-year CIOs. Chatham Island oystercatchers used coastline, rather than the lagoon shoreline, almost exclusively. Intertidal rock platforms and wide sandy beaches were selected in much greater proportions than available. Paddocks were used extensively for foraging by some pairs.en
dc.format.extent1-34en
dc.language.isoen
dc.rights© Copyright May 2005, New Zealand Department of Conservation
dc.subjectbreeding biologyen
dc.subjectChatham Islandsen
dc.subjectChatham Island oystercatcheren
dc.subjectHaematopus chathamensisen
dc.subjectendangered speciesen
dc.subjecthabitat selectionen
dc.titleHabitat selection and breeding ecology of the endangered Chatham Island oystercatcher (Haematopus chathamensis)en
dc.typeReport
dc.subject.marsdenFields of Research::270000 Biological Sciences::270700 Ecology and Evolution::270703 Terrestrial ecology
lu.contributor.unitLincoln University
lu.contributor.unitFaculty of Agriculture and Life Sciences
lu.contributor.unitDepartment of Pest Management and Conservation
pubs.commissioning-bodyDepartment of Conservationen
pubs.confidentialfalseen
pubs.notesDOC Research and Development Series 206en
pubs.organisational-group/LU
pubs.organisational-group/LU/Agriculture and Life Sciences
pubs.organisational-group/LU/Agriculture and Life Sciences/ECOL
pubs.organisational-group/LU/Research Management Office
pubs.organisational-group/LU/Research Management Office/QE18
pubs.publication-statusPublisheden
dc.publisher.placeWellington, New Zealanden
lu.identifier.orcid0000-0003-4090-0815
lu.subtypeCommissioned Reporten


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