兽类学报2026，Vol.46Issue(4)：483-495,13.DOI:10.16829/j.slxb.151056
湖北大老岭同域中型食肉动物时间生态位分化
Temporal niche differentiation of sympatric mesocarnivores in Hubei Dalaoling National Nature Reserve
摘要
Abstract
Investigating the spatiotemporal distribution of sympatric species with similar ecological niches is a central topic in community ecology.This study was conducted in Dalaoling National Nature Reserve from June 2019 to October 2024 using camera trap technology to survey wildlife.During the investigation period,a total of 763 camera trap sites were deployed,accumulating 91 247 camera trap days and yielding 68 616 independent valid wildlife detections.We then applied kernel density estimation(KDE)and the coefficient of overlap to compare the temporal niche relationships of five mesocarnivores within the region.Among all species surveyed,the Chinese ferret-badger(Melogale moschata,RAI=5.85)had the highest relative abundance index(RAI),while the leopard cat(Prionailurus bengalensis,RAI=1.22)showed the lowest.Among the five carnivorous species,the hog badger(Arctonyx collaris)exhibited a multimod-al daily activity pattern,while the masked palm civet(Paguma larvata),Siberian weasel(Mustela sibirica),ferret-badger,and leopard cat showed bimodal activity rhythms.Moreover,the night-time relative abundance index(IN-RA)of the five species throughout the year is lower than the judgment standard for day night habits(13/24),indicating that they have strong nighttime activity characteristics.Overlap analysis revealed that the masked palm civet and Chi-nese ferret-badger had highly overlapping daily activity curves(△=0.96)with no significant difference(P=0.397).By contrast,every other pairwise comparison showed varying degrees of divergence in daily activity rhythms,all statisti-cally significant(P＜0.001).In addition,the five species exhibited high seasonal overlap in their activity curves,with no significant difference in cold versus warm seasons for the leopard cat(P=0.360)or the Siberian weasel(P=0.201).At the monthly activity scale,significant differences in activity intensity were observed among the five species(P＜0.001).All species showed varying degrees of increased activity levels from March to May,while the masked palm civet and hog badger exhibited significantly lower winter activity compared to the other three species.The study demon-strates that these five carnivores in Dalaoling National Nature Reserve effectively mitigate direct interspecific competi-tion through differentiation in daily activity rhythms,variations in monthly activity intensity,and seasonal dynamics,thereby facilitating sympatric coexistence.This research help elucidate the temporal niche relationships and underlying coexistence mechanisms among medium-sized sympatric carnivores in the Dalaoling region,providing a scientific foun-dation for future conservation and management strategies in this area.关键词
红外相机/中型食肉动物/活动节律/时间生态位Key words
Camera-trapping/Mesocarnivore/Activity rhythm/Temporal niche分类
生物科学引用本文复制引用
邹明江,钱前,田瑶瑶,邓春韩,高本旺,朱凯,刘益平,周友兵,彭刚志..湖北大老岭同域中型食肉动物时间生态位分化[J].兽类学报,2026,46(4):483-495,13.基金项目
大老岭自然保护区重点保护野生动物专项调查与监测项目 （）
