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首页> 外文期刊>South African Journal of Wildlife Research >Population estimates of bushbuck (Tragefaphus scripfus) in valley thicket and coastal bushveld-grassland habitat
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Population estimates of bushbuck (Tragefaphus scripfus) in valley thicket and coastal bushveld-grassland habitat

机译：山谷灌丛和沿海灌木丛-草原生境中的灌木丛（Tragefaphus scripfus）种群估计

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摘要

Bushbuck (Tragelaphus scriptus) are usually nocturnal, solitary, secretive and inhabit thick bush, making it difficult to estimate its density and abundance. The present study assessed simulated drive counts, distance sampling from sighting efforts, and mark-resighting as estimators of bushbuck population size in valley thicket and coastal bushveld-grassland habitat for management purposes. Sighting efforts using distance sampling during spring were found to be the most effective estimators of bushbuck density and abundance at Shongweni Dam and Game Reserve. Furthermore, the method had high repeatability and simplicity, and low costs. However, continued estimations are required over several years to determine whether these estimations are useful formonitoring population trends of bushbuck.
机译：灌木树（Tragelaphus scriptus）通常是夜间活动的，孤独的，分泌性的并且栖息于浓密的灌木丛中，因此很难估计其密度和丰度。本研究评估了模拟驱动器计数，从瞄准工作获得的距离采样以及标记重新评估，作为管理范围内山谷灌木丛和沿海灌木丛草原生境中灌木丛种群大小的估计值。发现在春季，使用Shongweni大坝和野生动物保护区的灌木丛密度和丰度是最有效的估测灌木丛密度的方法。此外，该方法具有高重复性和简便性，并且成本低。但是，需要数年的持续估计才能确定这些估计是否对监测灌木林的种群趋势有用。

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