Food and feeding relations of three species of Triturus (Amphibia Urodela) during the aquatic phases
Food and feeding relations of three species of Triturus (Amphibia Urodela) during the aquatic phases
复制标题
三种 Triturus (Amphibia Urodela) 在水生阶段的食物和摄食关系
作者：
R. Avery
在不列颠群岛发现了三种蝾螈。它们是大型的冠蝾螈Triturus cristatus（Laurenti），较小的掌状蝾螈T。helveticus（Razoumowsky）和平滑蝾螈T. vulgaris（L.）后两者的雌性非常相似，但雄性在求偶展示方面有着独特的模式。已知这三个物种都以水中和陆地上的各种无脊椎动物为食（Smith 1964），但没有对其食性进行详细研究。本woik进行，以确定是否有任何差异，在饮食的三个物种，当他们共存于同一池塘，并记录了食物中发现的525个成年蝾螈和蝌蚪在两个不同的池塘在英格兰西部。
Three species of newts (Urodela) are found in the British Isles. They are the large crested newt Triturus cristatus (Laurenti), the smaller palmate newt T. helveticus (Razoumowsky), and the smooth newt T. vulgaris (L.). The females of the two latter are very similar, but the males have distinctive patterns associated with courtship display. All three species are known to feed on a wide range of invertebrates both in the water and on land (Smith 1964) but there has been no detailed study of their feeding habits. The present woik was undertaken to determine whether there are any differences in the diets of the three species when they co-exist in the same ponds, and records the food found in the stomachs of 525 adult newts and tadpoles caught in two different ponds in the West of England.