Ant Spec ies D iversity on Ea st Slope of YunlingMounta in in Northwestern Yunnan

GUO Xiao; XU Zheng-hui; YANG Jun-wu; SHI Sheng-li; LI Qiao

Using samp le p lot investigation method, ant communities and species diversity of 32 samp le p lots on 5vertical and 10 horizontal bands from east slope of YunlingMountain were surveyed in October 2004. The Speciesnumbers ranged between 1～17, individual densities ranged between 4. 0～368. 0 heads?m-2 , species diversityindexes ranged between 0 ～1. 787, evenness indexes ranged between 0. 062 ～0. 747, and p redominant indexesranged between 0. 223～1. 000. On vertical bands, the individual densitieswere basically decreasing alongwith theincreasing of altitude and decreasing of temperature. Because the middle section of the mountain has the best condition of vegetation and climate, the maximum values of ant species numbers, species diversity indexes and evennessindexeswere observed at the middle section, meanwhile, the minimum values of p redominant indexeswere obtainedat the same p lace. On horizontal bands, almost all the diversity indexeswere without regularity, the phenomenon wasclosely related with special partial environments and human being disturbance of the samp le p lots. According to similarity coefficents, ant communities of different samp le p lotswere distinctly divergence on both vertical and horizontalbands, the whole ecosystem of YunlingMountain at Northwestern Yunnan is rich in habitat diversity.

1. Faculty of Conservation Biology, Southwest Forestry College, Kunming　650224, Yunnan, China

Received Date: 2006-11-19

Abstract: Using samp le p lot investigation method, ant communities and species diversity of 32 samp le p lots on 5vertical and 10 horizontal bands from east slope of YunlingMountain were surveyed in October 2004. The Speciesnumbers ranged between 1～17, individual densities ranged between 4. 0～368. 0 heads?m-2 , species diversityindexes ranged between 0 ～1. 787, evenness indexes ranged between 0. 062 ～0. 747, and p redominant indexesranged between 0. 223～1. 000. On vertical bands, the individual densitieswere basically decreasing alongwith theincreasing of altitude and decreasing of temperature. Because the middle section of the mountain has the best condition of vegetation and climate, the maximum values of ant species numbers, species diversity indexes and evennessindexeswere observed at the middle section, meanwhile, the minimum values of p redominant indexeswere obtainedat the same p lace. On horizontal bands, almost all the diversity indexeswere without regularity, the phenomenon wasclosely related with special partial environments and human being disturbance of the samp le p lots. According to similarity coefficents, ant communities of different samp le p lotswere distinctly divergence on both vertical and horizontalbands, the whole ecosystem of YunlingMountain at Northwestern Yunnan is rich in habitat diversity.

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Reference (21)

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Ant Spec ies D iversity on Ea st Slope of YunlingMounta in in Northwestern Yunnan

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