Costs of exclusive male parental care in the sea spider Achelia simplissima (Arthropoda: Pycnogonida)
Costs of exclusive male parental care in the sea spider Achelia simplissima (Arthropoda: Pycnogonida)
复制标题
DOI：
10.1007/s00227-010-1566-6
复制
发表时间：
2011-02-01
期刊：
影响因子：
2.4
通讯作者：
Burris, Zair P.
中科院分区：
文献类型：
--
作者：
Burris, Zair P.
海蜘蛛是少数几种雄性只照顾后代的海洋无脊椎动物之一。然而，对于任何种类的碧萝芷来说，父母照顾的成本从来没有得到解决。成本可能是显着的孵化海蜘蛛Achelia simplissima，因为男性携带多达12个卵块同时和积极通气，这些鸡蛋来回移动他们的产卵腿。这项研究探讨了四个潜在的成本，男性作为父母的照顾：捕食，驱逐，运动和喂养模式，和频率的epibions。育雏男性被发现经历了显着更高的频率捕食者的攻击和epibions，以及较低的运动速率相比，nonbrooding男性。有趣的是，育雏男性比nonbroding男性更难驱逐，经历了没有变化的喂养频率作为父母的照顾。这是第一项研究提供证据表明，父母的照顾可能是昂贵的男性pycnogonids在个人生存和未来的生殖成功。
Sea spiders are one of the few marine invertebrates whose males care exclusively for offspring. The costs of parental care, however, have never been addressed for any species of pycnogonid. Costs may be significant for brooding sea spiders of Achelia simplissima, since males carry up to 12 egg masses simultaneously and actively aerate those eggs by moving their ovigerous legs back and forth. This study explored four potential costs to males as a result of parental care: predation, dislodgment, movement and feeding patterns, and frequency of epibionts. Brooding males were found to experience significantly higher frequencies of predator attacks and epibionts, as well as a lower rate of movement compared with nonbrooding males. Interestingly, brooding males were harder to dislodge than nonbrooding males and experienced no change in feeding frequency as a result of parental care. This is the first study to provide evidence that parental care may be costly for male pycnogonids in terms of individual survival and future reproductive success.