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Response of macroinvertebrate communities to land use and water quality in Wudalianchi Lake

文献类型： 外文期刊

作者： Du, Xue 1 ; Song, Dan 1 ; Ming, Kun 2 ; Jin, Xing 1 ; Wang, Huibo 1 ; Wang, Le 1 ; Liu, Hui 1 ; Zhao, Chen 1 ; Huo, Tangbin 1 ;

作者机构： 1.Chinese Acad Fishery Sci, Heilongjiang River Fishery Res Inst, Harbin 150010, Peoples R China

2.Joint Logist Support Force PLA, Harbin Management Stn, Forth Adm Bur Reserve Assets, Harbin, Peoples R China

关键词： buffer zone; land use types; macroinvertebrate; water quality

期刊名称：ECOLOGY AND EVOLUTION （ 影响因子：2.912； 五年影响因子：3.271 ）

ISSN： 2045-7758

年卷期： 2021 年 11 卷 3 期

页码：

收录情况： SCI

摘要： Macroinvertebrate assemblages are structured by a number of abiotic and biotic factors interacting simultaneously. We investigated macroinvertebrate assemblages along gradients of human disturbance and morphometric characteristics in five lakes connected by the same stream. We aimed to assess the relative effects of environmental gradients on macroinvertebrate assemblages and to investigate whether water quality effects on the assemblages were correlated with buffer land use. There were significant differences in macroinvertebrate community compositions among lakes, and our results indicated that oligochaetes (mainly Limnodrilus) and insects (mainly Chironomus) contributed highly to the differences. We used redundancy analysis with variation partitioning to quantify the independent and combined anthropogenic effects of water quality and land use gradients on the macroinvertebrate community. The independent effect of water quality was responsible for 17% of the total variance in macroinvertebrate community composition, the independent effect of buffer land use accounted for 6% of variation, and the combined variation between land use change and water quality accounted for 12%. Our study indicated that both the independent effects of land use and within-lake water quality can explain the influence in macroinvertebrate assemblages, with significant interactions between the two. This is rather important to notice that changes in buffer land use generally may alter nutrient inputs and thus severely affect abiotic conditions encountered by macroinvertebrate. Our study demonstrates that considering buffer zone effects explicitly may be significant in the selection and application of conservation and management strategies.

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