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基于红外相机监测的色达县赤狐适宜栖息地评价
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Journal Article
基于红外相机监测的色达县赤狐适宜栖息地评价
2025
Overview
Q958.1; 赤狐(Vulpes vulpes)是国家二级重点保护野生动物,也是色达县棘球绦虫(Echi-nococcus)等恶性疾病的重要传播源,掌握该物种时空利用特征可促进其有效管护.2023年6月—2024年3月,利用红外相机监测四川省甘孜州色达县赤狐活动,并对其栖息地影响因子、适宜栖息地和日活动节律进行分析,结果显示:赤狐的日活动强度分布不均匀(α>0.042),其在05:00、20:00和24:00出现活动峰值,在09:00-15:00活动较少,呈夜行性(β=0.09);年均降水量、土地覆盖类型、EVI变幅和最湿月降水量是影响当地赤狐栖息地利用的主要环境因子,赤狐偏好利用年均降水量和最湿月降水量较高、EVI变幅较小的栖息地,喜欢林地.赤狐的适宜栖息地面积约为1 331 km2,主要分布在色达县东南侧;次适宜栖息地面积为3 119 km2,主要分布在色达县的东侧和南侧;色达县年龙自然保护区内适宜栖息地面积仅有221 km2,次适宜栖息地面积仅有133 km2.研究结果表明,色达县赤狐栖息地较广,且大都分布在保护区外,除保护区外,人们应该同时关注保护区外赤狐更大的栖息地管护;赤狐白天活动较少,人类白天活动与其接触的机会不多,日常生活中人们可多关注赤狐粪便密接等其他问题,以减少疫病传播.
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