Relationship between rodent community structure and environmental factors in the southern part of the northeast agro-pastoral ecotone
Rodents are the main harmful animals in the agro-pastoral ecotone of northeast China,threatening the local agriculture,animal husbandry,and public health.In order to explore the relationship between rodent community structure and environmental factors in this region,we conducted surveys on species and abundance of rodents across different habitat types in the southern part of the northeast agro-pastoral ecotone from June to September in 2020 and 2021.We employed a boosted regression tree model to analyze the relationships between climate,productivity,habitat heterogeneity,soil,and rodent density and species richness.The results revealed 18 species of 601 rodents captured,with Cricetulus barabensis being the dominant species,accounting for 27.94％of the total captured individuals.The highest rodent capture rate(2.99％)was observed in grassland,while the highest community diversity index was recorded in the farmland-grassland ecotone.Rodent community structures varied across different habitat types,with varying capture rates and spatial distribution patterns of dominant rodent species.Climate and habitat heterogeneity exerted major influence on rodent density and species richness,among which,net primary productivity acted on rodent density and species richness through bottom-up effects.Based on our findings,we recommend the development of tailored rodent prevention and control measures for different habitat types according to rodent density and community characteristics.Furthermore,research on the migration and harm of dominant rat species among different habitat types should be strengthened to support effective landscape management and ecological rodent control.
agro-pastoral ecotonerodentcommunity structurehabitat typeecological control
NETL
NSTL
万方数据
