MORPHOEDAPHIC AND BIOGEOGRAPHIC ANALYSIS OF CRAYFISH DISTRIBUTION IN NORTHERN WISCONSIN
MORPHOEDAPHIC AND BIOGEOGRAPHIC ANALYSIS OF CRAYFISH DISTRIBUTION IN NORTHERN WISCONSIN
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DOI：
10.2307/1547950
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发表时间：
1983-01-01
影响因子：
1.1
通讯作者：
MAGNUSON, JJ
中科院分区：
文献类型：
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作者：
CAPELLI, GM;MAGNUSON, JJ
对威斯康星州北部北方维拉斯县67个湖泊的淡水螯虾分布和丰度进行了调查，并采用多元回归分析了各物理、化学和生物变量与调查结果的关系。该地区以Orconectes rusticus、O. propinquus和O. virilis，而双翅目原螯虾（Cambarus diogenes）、尖吻原螯虾（Procambarus acutus）和O. immunis也存在，只有O. virilis以前在该地区有记录。没有一个单一的变量或变量的组合完全解释小龙虾分布的变化。基板，钙水平，地理隔离相关的殖民机会，和湖泊的大小似乎是普遍的重要性。继续引进和竞争性排斥也可能是重要的，导致一个动态的情况下，涉及多个控制因素的相互作用。
Crayfish distribution and abundance were surveyed among 67 lakes in the Vilas County area of northern Wisconsin, and then multiple regression was used to analyze the relationship between the results and various physical, chemical and biological variables. The region is dominated by Orconectes rusticus, O. propinquus and O. virilis, but Cambarus diogenes, Procambarus acutus and O. immunis are also present; only O. virilis was previously documented from the area. No single variable or combination of variables fully explained variations in crayfish distributions. Substrate, Ca level, geographic isolation as related to colonization opportunity, and lake size appear to be of general importance. Continuing introductions and competitive exclusion are also probably significant, resulting in a dynamic situation involving an interaction of multiple controlling factors.