基于红外相机技术的雷公山保护区白颈长尾雉生境利用分析

Habitat Utilization of Syrmaticus ellioti in Leigongshan Nature Reserve Using Infrared Imaging

生境是动物生存和繁衍的场所,生境的质量及其可利用程度是决定动物种群存亡的关键。本文应用ArcGIS对DEM的海拔和坡向数据进行自然间断点分级(Jenks)和重分类(Reclass),各分为4个梯度后与4个植被类型进行叠加分析(Intersect),系统性抽样64个固定样地,利用红外相机开展白颈长尾雉Syrmaticus ellioti监测和生境利用调查。结果显示:雷公山保护区白颈长尾雉对低海拔和中低海拔有选择性,对坡向无选择性,对阔叶林和针阔混交林有选择性。应加大天然林保护力度,丰富植物群落的垂直结构和多样性,为白颈长尾雉等鸟类提供更多的栖息场所及食物来源。

Habitat is the place where animals live and reproduce.The quality and availability of habitat are essential to the survival of animal population.In this paper,a systematic analysis was performed on the habitat utilization of Syrmaticus ellioti in the Leigongshan Nature Reserve using infrared camera technology.Four gradients were also classified in the elevation and slope direction data of DEM using ArcGIS.Four vegetation types were then intersected.After that,64 fixed sampled plots were systematically segmented to monitor the habitat utilization using infrared camera.The results showed that S yrmaticus ellioti in Leigongshan Nature Reserve was preferred to the low altitude and middle-low altitude,without the selectivity to the slope direction.Furthermore,there was the selectivity to the broad-leaved forest,or coniferous and broad-leaved mixed forest.Some suggestions were proposed to strengthen the protection for the vertical structure and diversity of plant communities.It is a high demand to provide more habitat and food sources for the birds,such as Syrmaticus ellioti.