Biomass of small mammals in Tangjiahe Nature Reserve

Abstract

Abstract: From April to November 1989,small mammal communities were studied in Tangjiahe Nature Reserve,Sichuan Province,China.846 individuals were captured within 11 000 trap-days including 21 small mammal species recorded in the surveyed area.Based on the small mammal number captured,regression equations were established to calculate the small mammal densities and biomass of the four small mammal communities in Tangjiahe Nature Reserve.The results showed that the species densities of the four small mammal communities were 18.85,23.01,15.99,25.38 individual穐m^-2 respectively in summer with the average of 19.49 individual穐m^-2.The biomass of the four mammal communities in summer were 1 053.9,1 497.13,1 051.99,1 815.15 g穐m^-2 respectively,with the average of 1 273.04 g穐m^-2.The dominant species of Niviventer niniventer reached 91%,90%,and 79% of total biomass in community 1,2 and 3 respectively.The other dominant species Ochatena thibetana reached 79% of total biomass in community 4.These species determined the main characteristics of the small mammal communities in Tangjiahe Nature Reserve.

Key words: Rock plant, Pogonatherum paniceum, Growth character, Biomass, Root-shoot ratio

CLC Number:

Q958.1

WANG Yu, HU Jinchu, CHEN Limin, ZHANG Hanfeng, XU Ling, HU Zhongjun, XU Hongfa. Biomass of small mammals in Tangjiahe Nature Reserve[J]. cje, 2005, (6): 707-710.

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