Science and Research Internal Report N0.103 a Detailed Habitat Study of North Island Kokako in Puketi Forest, Northland
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Science & Research Series N0.17 a Habitat Survey of North Island Kokako in Puketi Forest, Northland
The vegetation structure and composition, and the activities of kokako were studied intensively in five home ranges in Puketi Forest to determine the significance of kauri to kokako, and the likely impacts of logging and browsing mammals upon kokako. Typically, kokako home ranges in Puketi Forest were situated mainly in dissected terrain and contained a great diversity of vegetation types and s...
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The foraging behaviour, diet and habitat use of North Island kokako (Callaeas cinerea wilsoni) were studied in Puketi State Forest from October 1981 to August 1982. Kokako fed mainly from branches and twigs of canopy and upper-understorey plants. Although 68 different foods were eaten, only eight contributed more than 5% to the observed diet in any season. The diet consisted of fruit (44%), unk...
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This document describes a search for South Island kokako, carried out in September and November 1997, following a detailed report of presumed kokako seen recently by Barry Donovan atAbut Head, South Westland. Two sites where possible sightings were made were investigated intensively, while a more general search was carried out at other parts of Abut Head. Search methods involved broadcasting an...
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The theory of population regulation predicts that threatened species are safest at high population numbers, partly because density-dependent compensatory mechanisms counteract unpredictable disturbances. We illustrate this principle using data from the endemic kokako (Callaeas cinerea wilsoni) populations in the North Island, New Zealand. First we calculate the fledging rate per female (product...
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The lesser short-tailed bat (Mystacina t. tuberculata) has been found in 18 locations in indigenous forest in North Island since 1961, mainly in Northland kauri forest (including Little Barrier Island), on the volcanic plateau (including Tongariro National Park), Urewera National Park and in Tararua Range. In South Island this bat has only been reported once since 1961, in North West Nelson For...
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