中华漠王Platyope proctoleuca chinensis(鞘翅目:拟步甲科)对微生境的选择  

Microhabitat selection of Platyope proctoleuca chinensis(Coleoptera:Tenebrionidae)

作　　者：吕昭智[1,2] 钟晓英[1] 苏延乐[1] 梁红斌[3] 

机构地区：[1]中国科学院干旱区生物地理与生物资源重点实验室,乌鲁木齐830011 [2]中国科学院新疆生态与地理研究所,乌鲁木齐830011 [3]中国科学院动物研究所,北京100101

出　　处：《生态学杂志》2010年第11期2199-2203,共5页Chinese Journal of Ecology

基　　金：中国科学院"西部之光"东西部联合学者计划资助项目(LHXZ200603)

摘　　要：动物对栖息地选择是复杂的,探索其内在机制对寻求维持动物多样性的有效方法具有重要意义。以古尔班通古特沙漠的地表甲虫优势种——中华漠王(Platyope proctoleuca chinensis)(鞘翅目:拟步甲科)为研究对象,2007—2008年连续2年采用陷阱捕获法监测其在不同生境下的种群数量和洞穴数量,分析该甲虫在景观和微尺度环境下对栖息地的选择。结果表明:在景观尺度上,与垄间相比,中华漠王更喜欢在沙丘上活动,在沙丘不同坡面上,中华漠王在背风坡的种群数量大于迎风坡;在微尺度上,中华漠王喜好沙丘上部的微环境,在背风坡上部种群数量相对更多;洞穴数量在景观和微生境2种尺度上的分布基本与种群数量空间分布一致。此外,中华漠王对微生境的选择与洞穴建立的难易程度有关,而洞穴的建立与土壤质量密切相关,特别是土壤的物质组成及其硬度。Habitat selection of animals is of complexity,while approaching its inherent mechanism is of significance in maintaining animal＇s biodiversity.Taking the darkling beetle Platyope proctoleuca chinensis（Coleoptera：Tenebrionidae）,a dominant beetle species in Gurbantunggut Desert of Xinjiang,China,as study object,a 2-year（2007-2008）investigation with pitfall traps was made on its population dynamics and burrows quantity in different habitats of the desert,with the habitat selection of this beetle on landscape and microhabitat scales analyzed.On landscape scale,the beetle preferred sand dune than interdune,and was more plentiful in the lee slope than in the windward slope of sand dune.On microhabitat scale,the beetle was fond more of the top of sand dune,particularly the top of the lee slope of sand dune.The distribution pattern of the burrows was similar to the population dynamics of the beetle.The habitat selection of the beetle was correlated to the difficulty of burrow-building,while successful digging burrow was interrelated to soil quality,especially the composition of sand materials and soil rigidity.

关 键 词：中华漠王 拟步甲 生境选择 栖息地 沙丘 

分 类 号：Q968[生物学—昆虫学]