首页> 外文期刊>Bulletin of the British Arachnological Society >Maternal care and offspring behaviour in three theridiid species (Araneae, Theridiidae)
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Maternal care and offspring behaviour in three theridiid species (Araneae, Theridiidae)

机译:三种兽科物种(Araneae,Theridiidae)的产妇保健和后代行为

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Maternal care is widespread in theridiids. Theridion evexum Keyserling breaks the threads in the outer layer of the egg sac to allow its spiderlings to leave the sac. Achae-aranea tesselata (Keyserling) and Anelosimus studiosus (Hentz) kill prey for their young spiderlings to feed upon. Occasionally, embryos of T. evexum die when their mother fails to break the threads of the egg sac properly, and spiderlings of A. tesselata and A. studiosus are sometimes killed when they are wrapped along with the prey when the adult spider is attacking prey. Offspring mortality is rare, suggesting that the attack behaviour is highly suppressed in spiderlings of social theridiids.
机译:孕产妇在种族中普遍存在。赛峰依维克斯Keyserling破坏了卵囊外层的螺纹,以使其卵囊离开卵囊。 Achae-aranea tesselata(Keyserling)和Anelosimus studiosus(Hentz)杀死猎物,捕食它们的幼小蜘蛛。有时,当母亲无法正确地打破卵囊的线时,伊芙种子会死亡,并且当成年蜘蛛攻击猎物时,特斯泰拉塔和学虫的小蜘蛛有时会与猎物一起被杀死。 。后代死亡率很少,这表明在社会兽蛛的小蜘蛛中,攻击行为受到高度抑制。

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