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首页> 外文期刊>Ostrich >Ranging behaviour of Long-crested EaglesLophaetus occipitalisin human-modified landscapes of KwaZulu-Natal, South Africa
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Ranging behaviour of Long-crested EaglesLophaetus occipitalisin human-modified landscapes of KwaZulu-Natal, South Africa

机译：长冠鹰嘴植物植物植物的不等行为人类南非夸祖鲁 - 纳塔尔人类改良景观

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摘要

The ranging behaviour of raptors in human-altered environments, such as agricultural and suburban landscapes, is becoming increasingly important for conservationists in the context of unprecedented high rates of anthropogenic land use change. We studied the movement ecology of adult Long-crested EaglesLophaetus occipitalisfitted with geographic positioning system transmitters in an agricultural landscape in KwaZulu-Natal Province, South Africa. Mean home ranges (+/- SD) of males and females estimated using the autocorrelated kernel density estimator (AKDE) method were 608 +/- 552 ha (n= 5) and 664 +/- 844 ha (n= 4), respectively. Core areas (KDE(href)50%) were estimated as 80 +/- 38 ha and 39 +/- 20 ha for males and females, respectively. We also recorded exploratory behaviour (in the form of long excursions) in two of the birds, of up to 49 km from the centre of their home range. The relatively small home ranges reported in this study are suggestive of productive foraging habitats whereby Long-crested Eagles can meet their energy requirements without having to travel long distances to obtain resources. Consistent with predictions, non-breeding male and female Long-crested Eagles showed similar ranging behaviour, which includes occasional exploratory behaviour.
机译：猛龙队在人类改变环境中的范围行为，例如农业和郊区的景观，对保护主义者在前所未有的人为土地利用变化的高速率范围内变得越来越重要。我们研究了成人长冠式EAGLESHAPAETUS的运动生态学，在南非夸祖鲁省港口省的农业景观中的地理定位系统发射器。使用自相关内核密度估计器（AKDE）方法估计的男性和雌性的平均家庭范围（+/-SD）分别为608 +/- 552 ha（n = 5）和664 +/- 844 ha（n = 4） 。核心区域（KDE（HREF）50％）分别估计为80 +/- 38公顷，分别为男性和女性的39 +/- 20公顷。我们还记录了两只鸟类中的探索性行为（以漫长的游览），距离家庭范围的中心有49公里。本研究报告的相对较小的家庭范围旨在提示生产性的觅食栖息地，长冠老鹰能够满足其能量要求，而无需长途跋涉以获得资源。与预测一致，非育种男性和女性长冠老胶显示出类似的测距行为，包括偶尔的探索行为。

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