A Study on the Temporal and Spatial Patterns of Ungulates in the Xiaozhaizigou National Nature Reserve,Sichuan
Understanding the spatiotemporal ecological niche patterns of closely related species is important for compre-hending species coexistence and conservation.In this study,the daily activity patterns,seasonal activity rhythm difference and spatio-temporal niche overlap of sympatric ungulate species were investigated by using 135 infrared cameras from 2019 to 2022 in the Xiaozhaizigou National Nature Reserve,Sichuan.The results showed that:(1)there were 8 ungulates in the reserve,and Naemorhedus griseus was the species had the widest distribution and the highest relative abundance.Pseudois nayaur had the fewest discovery sites.(2)Among the 7 ungulate species mainly active in the forest,N.griseus was cath-emeral,Sus scrofa and Muntiacus reevesi were diurnal,and Elaphodus cephalophus and Budorcas tibetana were predomi-nantly diurnal and crepuscular.Moschus berezovskii and Capricornis milneedwardsii showed a nocturnal bias.The diurnal activity rhythm of other ungulates in cold and warm seasons was significantly different,except for Budorcas tibetana.(3)In terms of temporal niche,the overlap of activity rhythm of ungulates was different in cold and warm seasons,and the overlap of activity rhythm in warm season was higher than that in cold season.(4)Regarding spatial niche,S.scrofa and N.griseus had the highest Pianka index,while the Pianka index between B.tibetana and other species were low.This im-plied that large and clustered species may coexist with other ungulates through spatial avoidance.The present study en-riches the basic information about ungulates and provides a reference for the conservation and habitat management of ungu-lates in the reserve.
camera trappingactivity patternspatiotemporal coexistenceungulatesgiant panda national park
NETL
NSTL
万方数据
