- 1、本文档共9页,可阅读全部内容。
- 2、有哪些信誉好的足球投注网站(book118)网站文档一经付费(服务费),不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
- 3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。如您付费,意味着您自己接受本站规则且自行承担风险,本站不退款、不进行额外附加服务;查看《如何避免下载的几个坑》。如果您已付费下载过本站文档,您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“版权申诉”(推荐),也可以打举报电话:400-050-0827(电话支持时间:9:00-18:30)。
查看更多
江湖阻隔对短吻间银鱼空间发生格局的影响
2005, 13 (5): 407415 doi: 10.1360/biodiv.050019
Biodiversity Science http : //
1,2 1 1* 1*
1(, 100871)
2(, 100037)
: 200 1–200386, (Hemisalanx
brachyrostralis), ,
, (21.3%), ,
, ;
,
,
: , , , , Hemisalanx brachyrostralis,
Impact of river-lake isolation on the spatial distribution pattern of
Hemisalanx brachyrostralis
1,2 1 1* 1*
Zhongsuo Wang , Cai Lu , Chongren Xu , Guangchun Lei
1College of Life Sciences, Peking University, Beijing 100871
2College of Life Sciences, Capital Normal University, Beijing 100037
Abstract During 2001–2003, we conducted a survey on icefish resources in the Yangtze River basin, aiming
to find out the impacts of habitat fragmentation on the population structure and dynamics of the species
Hemisalanx brachyrostralis. By investigating the presence/absence of the target species in 86 water bodies,
we analysed its temporal-spatial distribution patterns in relation to two important habitat parameters—water
area and isolation. The results indicated that this species was mainly distributed in lakes affiliated with the
mid-lower reaches of the Yangtze River, showing low incidence of occurrence (IO=2 1.3%, annual
文档评论(0)