Feeding ecology of the turtle, Clemmys marmorata
Feeding ecology of the turtle, Clemmys marmorata
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Clemmys marmorata 的摄食生态
DOI：
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发表时间：
1986
期刊：
影响因子：
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通讯作者：
R. Bury
中科院分区：
文献类型：
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作者：
R. Bury
虽然花斑水龟吃各种食物，似乎是一个饮食通才，它不选择食物的基础上，一般可用性。该物种是一种食腐动物和机会主义捕食者，偏好通过各种觅食策略捕获活猎物。男性，女性和青少年的饮食在猎物的大小和食物项目的比例不同，这可能会减少种内竞争的年龄和性别之间的类。部分草食性发生在成年人身上，当动物食物无法获得时，植物可以提供容易获得的营养素和一些蛋白质的重要来源。在被C. marmorata，并可能贡献相当大的营养价值的饮食。淡水龟的食性表现出几种模式和策略：同域种间的食性差异（Lagler，1943; Brecken- ridge，1944; Berry，1975;沃格特，1981），不同体型或形态的种类间的食性差异（Lagler，1943; Brecken- ridge，1944; Berry，1975; Vogt，1981）
Although Clemmys marmorata eats a variety of food and appears to be a dietary generalist, it does not select food items based on general availability. This species is a scavenger and an opportunistic predator with a preference for live prey captured by varied foraging tactics. Diets of males, females, and juveniles differ in prey size and proportions of food items, which may reduce intraspecific competition between the age and sex classes. Partial herbivory occurs in adults, and plants may provide an important source of readily available nutrients and some protein when animal food is unobtainable. Seston and other small animals abound in the filamentous algae eaten by C. marmorata, and may contribute considerable nutrient value to the diet. Freshwater turtles display several patterns and tactics in their feeding habits: differences in diet among sym- patric species (Lagler, 1943; Brecken- ridge, 1944; Berry, 1975; Vogt, 1981), dif- ferent food habits among species with different body sizes or morphological