Co-adapted foraging traits in a guild of orb-weaving spiders
Co-adapted foraging traits in a guild of orb-weaving spiders
复制标题
球织蜘蛛行会的共同适应觅食特征
DOI：
10.1007/bf00376903
复制
发表时间：
1981
期刊：
影响因子：
2.7
通讯作者：
C. Olive
中科院分区：
文献类型：
--
作者：
C. Olive
从以前的两个物种的比较，特定的套房的形态和网页设计特征的预测，以表征觅食专业化的旧领域orb-weaving蜘蛛。有粗壮的腿、巨大的尖牙、开放的网状网、高网和撤退的物种应该专门针对无害的、快速逃离的猎物类型。有长腿、小尖牙、密网和低网的物种应该专门捕食那些从网中缓慢逃脱的危险、笨拙的猎物。因子分析和判别分析用于测试这些关联模式在8个共同发生的旧领域orb-weavers种。支持大多数字符之间的关联，但新组合的出现表明需要向模型中添加另一个维度。栖息地的使用和饮食预测模型进行测试的物种数据可用。
From a previous two-species comparison, specific suites of morphological and web design traits are predicted to characterize foraging specializations in old-field orb-weaving spiders. Species with stout legs, large fangs, open mesh webs, high webs, and retreats should specialize on innocuous, rapidly escaping prey types. Species with long legs, small fangs, dense mesh webs, and low webs that rest in the hub should specialize on dangerous, clumsy prey that escape from webs slowly. Factor and discriminant analyses are used to test for these association patterns in eight co-occurring species of old-field orb-weavers. The association between most of the characters is supported, but the appearance of a new combination suggests that another dimension needs to be added to the model. Habitat use and diet predicted by the model are tested for species where data are available.