%0 Journal Article %A $authorName.trim() %A $authorName.trim() %A $authorName.trim() %A $authorName.trim() %A $authorName.trim() %T Effects of burrowing activity of plateau pika (Ochotona curzoniae)on plant species richness and aboveground biomass %D 2012 %R %J ACTA THERIOLOGICA SINICA %P 216-220 %V 32 %N 3 %X Using an approach of spatial sequence instead of temporal sequence,we analyzed the change in plant community species richness,species composition and aboveground biomass among plateau pika (Ochotona curzoniae)mounds and nonmound( control),and explained the effect of burrowing activities of pikas on the plant community on mounds.The results showed that the plant species richness in the older mound increased by 25. 0% and 17. 5% respectively compared to the two-year mound and control. The trend of species diversity index was control > older mound > two-year mound,and species evenness was control > older mound > two-year mound. There were great differences in plant composition among the twoyear mound,the older mound and the control,and the community coefficients were 0.346 2 and 0. 285 7 respectively. The aboveground biomass of the older mound was significant higher than two-year mound and the control (F old mound-control = 13.544 0,F old mound-two-year =11. 768 2,P < 0. 05),and increased by 66.3% ,77. 8% respectively compared to the two-year mound and control. Burrowing activities of pikas favor an increase in species richness and the fitness to themselves,but in
terms of habitat plant community of pikas,taking a certain number new mounds into account,the aboveground biomass declined. %U http://www.mammal.cn/EN/abstract/article_2879.shtml