新薛河典型生境底栖动物功能性状及其多样性
Study of macroinvertebrate functional traits and diversity among typical habitats in the New Xue River
查看参考文献33篇
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文摘
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功能性状对环境变化敏感,在生物多样性与生态系统功能关系的研究中扮演关键角色;基于生物性状的功能多样性与生态系统过程密切相关,是了解生态系统和群落功能的关键所在。基于新薛河底栖动物3个季度的调查数据,对功能性状和功能多样性时空动态及其对环境梯度的响应进行了研究。研究结果表明10个功能性状的等级性状间均存在显著差异。空间格局上,33个等级性状中有21个在河段间差异显著,涉及10个功能性状中的9个;而在时间序列上,仅有12个等级性状于各季节间差异显著,涉及10个功能性状中的6个。功能多样性于各河段间差异显著,表现为D≥E、A≥C>B;而于各季节间整体表现为差异不显著;底栖动物各功能性状之间存在一定的权衡关系;水文条件是影响研究区域底栖动物功能多样性的主要因素;功能性状及功能多样性对河流生境质量具有较好的响应性。 |
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其他语种文摘
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Functional traits are sensitive to local environmental conditions,and are important characteristics in the research on the relationship between biological diversity and ecosystem function. Functional diversity based on species traits is closely related to ecosystem processes,and has emerged as a key feature for understanding ecosystem and community function. In this study,we used a year' s quarterly survey data of macroinvertebrates in the New Xue River to investigate the spatiotemporal dynamics of functional traits and functional diversity,and discuss the relationship between these functional attributes and habitat quality. By analyzing trait composition,we found that there were significant differences among the state traits of all the 10 traits examined. One-way ANOVA and an independent samples t-test were performed to compare the relative abundance of traits among different reaches (A to E) and seasons (Spring,Autumn,Winter),and the results showed that the state traits of all the 10 functional traits were significantly different. Twenty-one of the 33 state traits were significantly different among the five reaches,involving nine (voltinism,shape,size at maturity,rheophily,habit, swimming ability,trophic habit,occurrence in drift,attachment) of the 10 functional traits. In contrast,only twelve of the 33 state traits were significantly different among seasons,involving six (size at maturity,thermal preference,trophic habit, habit,swimming ability,occurrence in drift) of the 10 functional traits. The functional diversity index was highest in the reach D,followed by reach A,E,C,and lowest in reach B; showed D≥E,A≥C>B during the year. Although functional diversity index was significantly different among the different reaches,there was no significant difference among the different seasons. Our results suggest that 1) there is a trade-off among macroinvertebrates functional traits; 2)hydrological condition is the main factor affecting macroinvertebrates functional traits and diversity; and,3) functional traits and diversity are good indicators of habitat quality. |
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来源
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生态学报
,2018,38(6):2007-2016 【核心库】
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DOI
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10.5846/stxb201703050358
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关键词
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功能性状
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功能多样性
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底栖动物
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新薛河
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地址
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1.
枣庄学院生命科学学院, 枣庄, 277160
2.
中国科学院水生生物研究所, 淡水生态与生物技术国家重点实验室, 武汉, 430072
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-0933 |
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学科
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动物学 |
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基金
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国家自然科学基金项目
;
山东省自然科学基金
;
山东省教育厅项目
;
枣庄学院国家基金预研究项目
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文献收藏号
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CSCD:6220764
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