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古尔班通古特沙漠南缘拟步甲的物种多样性/Darkling Beetles Diversity in Southern Marginal Zone of the Gurbantonggut Desert[J]
Authors
中国科学院新疆生态与地理研究所,中国科学院干旱区生物地理与生物资源重点实验室,新疆乌鲁木齐830011
中国科学院研究生院,北京100049
+5 more
吕昭智
娄巧哲
徐养诚
新疆农业大学,新疆乌鲁木齐830052
马吉宏
Publication date
1 January 2013
Publisher
Abstract
于2010年5-7月利用陷阱法抽样技术,调查研究了古尔班通古特沙漠南缘不同生境中拟步甲的活动密度和群落多样性.结果表明:①在景观尺度上,拟步甲科的物种多样性整体比较低,活动密度、物种丰富度、多样性指数、优势度指数等群落特征值在不同景观间变化显著,拟步甲更倾向于分布在荒漠边缘;②拟步甲科多数优势种对微生境的选择表现出明显的倾向性,同属物种对微生境的选择表现出类似的倾向性;③重大农业工程的干扰,使得物种丰富度和均匀度指数有所下降,但差异不显著.多样性指数的下降及优势度指数的升高达到显著水平(P<0.05);不同物种的活动密度均表现为下降(库氏东鳖甲和光滑胖漠甲除外).表明拟步甲对荒漠生境有指示意义
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Last time updated on 29/11/2016