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首页> 外文期刊>Proceedings of the Arkansas Academy of Science >Egg Mass Characteristics of Terrestrial Morphs of the Mole Salamander, Ambystoma talpoideum (Caudata: Ambystomatidae), from Northeastern Arkansas and Clutch Comparisons with Other Ambystoma Species
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Egg Mass Characteristics of Terrestrial Morphs of the Mole Salamander, Ambystoma talpoideum (Caudata: Ambystomatidae), from Northeastern Arkansas and Clutch Comparisons with Other Ambystoma Species

机译：阿肯色州东北部the鼠，Ambystoma talpoideum（Caudata：Ambystomatidae）的陆地形态的卵形特征以及与其他Ambystoma种类的离合比较

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摘要

Aquatic eggs and/or egg masses of many salamander species normally increase in mass by acquiring a considerable amount of water via osmosis immediately following oviposition (see Duellman and Trueb, 1986). Most of this water gain is restricted to an area between the vitelline membrane which immediately surrounds the ovum and the outer egg capsule. Within this region there can be as many as eight concentric capsular rings per egg (Salthe, 1963); as these capsules expand, a gelatinous appearance is bestowed upon the single egg and/or egg masses. Not only do egg capsules serve to protect the developing embryo from predation and physical harm, but they also are vital to successful fertilization of the egg and must be present for hatching to occur (Duellman and Trueb, 1986).
机译：产卵后，许多immediately的水生卵和/或卵重通常会通过产卵后立即通过渗透获得大量水而增加质量（见Duellman和Trueb，1986年）。这种增水大部分被限制在卵黄膜与卵子外膜之间，卵黄膜紧紧围绕卵子。在这个区域内，每个卵可有多达8个同心荚膜环（Salthe，1963年）。随着这些胶囊的膨胀，单个鸡蛋和/或鸡蛋块具有凝胶状的外观。卵囊不仅可以保护正在发育的胚胎免受掠食和身体伤害，而且对于卵的成功受精也很重要，而且必须存在才能孵化（Duellman和Trueb，1986）。

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