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首页> 外文期刊>Ostrich >Reintroduction of captive-bred African grass-owls Tyto capensis into natural habitat.
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Reintroduction of captive-bred African grass-owls Tyto capensis into natural habitat.

机译:将圈养的非洲草猫头鹰Tyto capensis重新引入自然栖息地。

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摘要

This study represents the first attempt to determine post-release survival of a captive-bred owl in Africa. We released six captive-bred African Grass-Owls Tyto capensis into suitable habitat and, using radio telemetry, determined their daytime roost sites. One bird left the study area soon after release and did not yield data. Of the remaining five owls, three survived for at least 30 days in the wild, and all weaned off supplementary food onto a natural diet of wild rodents. Birds had no sign of supplementary food in their pellets after four, 28 or 33 days. Our results show similar success rates to those of both wild and captive-bred owls studied elsewhere in the world. Roost range area varied from 0.08-0.66km2. We conclude that captive breeding and release programmes may be a viable conservation option for African Grass-owls, if required in the future.
机译:这项研究代表了确定非洲圈养猫头鹰释放后存活率的首次尝试。我们将六只圈养的非洲草猫头鹰Tyto capensis放到合适的栖息地,并使用无线电遥测技术确定了它们的白天栖息地。一只鸟在释放后不久离开研究区域,但未获得数据。在剩下的五只猫头鹰中,有三只在野外生存了至少30天,并且全部断食了补充营养的野生啮齿动物饮食。在四,二十八或三十三天后,鸟类的颗粒中没有补充食物的迹象。我们的结果显示,与世界其他地方研究的野生猫头鹰和圈养猫头鹰的成功率相似。栖息地面积在0.08-0.66km2之间。我们得出结论,如果将来需要的话,圈养繁殖和释放计划可能是非洲草猫头鹰的一种可行的保护选择。

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