THE INFLUENCE OF PREDATION ON THE ADULT SEX RATIOS OF TWO COPEPOD SPECIES1
THE INFLUENCE OF PREDATION ON THE ADULT SEX RATIOS OF TWO COPEPOD SPECIES1
复制标题
捕食对两种桡足类成年性别比例的影响1
DOI：
--
复制
发表时间：
1970
期刊：
影响因子：
--
通讯作者：
E. J. Maly
中科院分区：
文献类型：
--
作者：
E. J. Maly
在实验环境中，研究了两种桡足类的雄性和雌性受到三种不同捕食者的捕食。在一定的时间内，蓝纹Ambystoma tigrinum蝌蚪对雌性的摄取量大于对雄性的摄取量，网状Lebistes reticulatus对雄性的摄取量大于雌性的摄取量，水螅对雌雄的摄取量相等。在实验室中，捕食改变了这些猎物的成年性别比例，其方式受捕食者狩猎行为的差异以及雄性和雌性猎物的大小和活动差异的影响。讨论了自然条件下成年猎物性别比例的预测。
Males and females of two specks of copepods were subjected to predation by three different predators in a laboratory environment. Ambystoma tigrinum tadpoles ate more female than malt Diaptomus &o&one, Lebistes reticulatus ate more male than female Diapltomx~ oregorzensis, and Hydra cauliculuta ate equal numbers of male and female D. oregonen& in a given length of time. Predation alters the adult sex ratios of these prey in the laboratory in a manner influenced by differences in predator hunting behavior and by differences in size and activity of male and female prey. Predictions concerning adult prey sex ratios in natural conditions are discussed.