生态学报2023，Vol.43Issue(23)：9597-9620,24.DOI:10.20103/j.stxb.202207011866
中国大中型陆栖哺乳动物地理区边界探测及其驱动因素
Detecting and analyzing the driving factors of bioregion boundaries based on the large and medium-sized terrestrial mammals in China
摘要
Abstract
Geographical isolation is one of major driving factors in shaping species distribution patterns.This study used the geographical distribution data of large and medium-sized terrestrial mammals in China to detect bioregions based on the Infomap Bioregions Method.The boundary of bioregion may represent the isolation effect of large and medium-sized terrestrial mammal groups.We applied a spatial autoregressive model to explore the main driving factors related to biogeographic boundaries starting from the gradient change of temperature,precipitation,and terrain.We constructed a Geographically Weighted Logistic Regression(GWLR)model to analyze the non-stationary spatial characteristics of the importance of each driving factor.Three main bioregions were identified.In addition to the coefficient of variation(CV)of annual precipitation was not obvious.The significance levels of the other variables at or below 10％were positively correlated with the biogeographic boundaries,which were related to the synergistic effects of climate mutation,topographic obstacles,and human activities.The dominant influencing factor of the boundary between bioregions 1 and 3 was the human footprint index,and that between bioregions 1 and 2 was the CV of temperature seasonality standard deviation.The main influencing factor of the boundary between bioregions 2 and 3 in the Qilian Mountains was the CV of temperature seasonality standard deviation,and that of the other areas was topographic obstacles.The response of multi-taxon species to isolation barriers was difficult to unify.Starting from large and medium-sized terrestrial mammals,this study identified biogeographic regions characterized by different species assemblages,revealed the spatial grouping rules of species,and provided a spatial model and framework to discuss the isolation mechanisms of various animal taxa.关键词
地理隔离/大中型陆栖哺乳动物/生物地理区/Infomap/地理加权逻辑回归Key words
geographical isolation/large and medium-sized terrestrial mammals/bioregions/Infomap/Geographically Weighted Logistic Regression引用本文复制引用
迟瑶,刘璐,吴朝宁,王结臣..中国大中型陆栖哺乳动物地理区边界探测及其驱动因素[J].生态学报,2023,43(23):9597-9620,24.基金项目
国家自然科学基金项目(41871294) （41871294）
