孔雀鱼(Poecilia Reticulata)的生态  

The Ecology of Guppies(Poecilia Reticulata)

作　　者：黄大明[1] 黄宏民 黄禹森 David N.Reznick HUANG Darning;HUANG Hongmin;HUANG Yusen;David N.Reznick(School of Life Sciences,Tsinghua University,Beijing 100084;Department of Evolution,Ecology and Orga nismal Biology,University of Califor nia,Riverside,California USA 92521)

机构地区：[1]清华大学生命学院生态学实验室,北京100084 [2]加州大学河滨分校进化生态与个体生物学系,美国加利福尼亚州92521

出　　处：《中国科技纵横》2022年第1期31-34,46,共5页China Science & Technology Overview

摘　　要：广泛分布在特立尼达自然水体中的孔雀鱼,因捕食压力形成不同的鱼类群落,这些群落通常离散分布,彼此间被瀑布隔离。一般下游是捕食压力高的群落,上游是捕食压力低的群落。这种分布模式在很多河流中都存在。在每一条河流中,孔雀鱼种群都存在生活史、行为、形态学和生理学的差异。在低捕食压力群落中对生活史、行为、形态学和生理学的选择因素是高种群密度及其相关因素。Guppies in Trinidad range across aquatic environments with fish communities that vary in risk of predation.These communities are often discrete,separated by waterfalls,with high-preddtion communities downstream and lowpredation communities upstream.This gradient is repeated in many rivers;in each one,the same divergence between guppypopulations in life history,behavior,morphology,and physiology.The agent of selection on the life history,behavioyand physiology in low-predation communities is high population density and the cascade of ecological effects that stems from it.

关 键 词：孔雀鱼 孔雀花鳉(Poecilia reticulate) 哈特溪鳉(Rivulus hartii) 特立尼达 生态 

分 类 号：S941.91[农业科学—水产养殖]