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首页> 外文期刊>New Zealand Journal of Zoology >Breeding biology and breeding success of the blue penguin (Eudyptula minor) on the West Coast of New Zealand's South Island
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Breeding biology and breeding success of the blue penguin (Eudyptula minor) on the West Coast of New Zealand's South Island

机译:新西兰南岛西海岸蓝企鹅(Eudyptula minor)的繁殖生物学和繁殖成功

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摘要

This paper presents the first detailed study of the timing and breeding success of an apparently declining population of blue penguins (Eudyptula minor) on the West Coast, South Island, New Zealand. Nest contents of 138 natural burrows and 19 nest boxes were determined at regular intervals during the 2006 breeding season. Hatching, fledging, and overall breeding success rates were comparatively high at 78.9, 83.9, and 66.2%, respectively, suggesting that the apparent population decline cannot be explained solely by low breeding success. With 1.18 fledglings produced per pair, productivity was lower than on the east coast of the South Island, possibly due to the absence of double clutching. The high incidence of road kills suggests that road traffic may be a major contributing factor to the decline of the blue penguin population in the study area.
机译:本文首次详细研究了新西兰南岛西海岸蓝企鹅(Eudyptula minor)种群数量下降的时间和繁殖成功。在2006繁殖季节定期确定138个自然洞穴和19个巢箱的巢含量。孵化,出雏和总体育种成功率相对较高,分别为78.9%,83.9和66.2%,这表明,种群数量的明显下降不能完全由低繁殖成功率来解释。每对产1.18只雏鸟,生产力可能低于南岛的东海岸,这可能是由于缺少双离合。道路杀人事件的高发表明,道路交通可能是导致研究区域蓝企鹅数量下降的主要因素。

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