Isolation between sympatric anadromous and resident threespine stickleback species in Mud Lake, Alaska
Isolation between sympatric anadromous and resident threespine stickleback species in Mud Lake, Alaska
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DOI：
10.1007/s10641-007-9200-2
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发表时间：
2008-03-01
影响因子：
1.4
通讯作者：
Bell, Michael A.
中科院分区：
文献类型：
--
作者：
Karve, Anjali D.;von Hippel, Frank A.;Bell, Michael A.
阿拉斯加马塔努斯卡-苏西特纳河谷的泥湖里，出现了一对顺水而居的淡水三刺鱼物种(尖刺刺鱼复合体)。这两种形式在一系列的形态特征上是不同的，包括与捕食者防御相关的特征(例如，刺长)和营养生态特征(例如，梳子的数量)。据报道，泥湖只有第三个湖泊，在没有中间部分板鱼的情况下，逆水刺鱼(有完整的一排侧板)与低板位的居民刺鱼共存。微生境和季节隔离似乎有助于这两种形式之间的生殖隔离。
A sympatric pair of anadromous and resident freshwater threespine stickleback species (Gasterosteus aculeatus species complex) occurs in Mud Lake in the Matanuska-Susitna Valley, Alaska. The two forms differ in an array of morphological traits, including traits associated with predator defense (e. g., spine lengths) and trophic ecology (e. g., number of gill rakers). Mud Lake is only the third lake reported to have anadromous stickleback (which have a complete row of lateral plates) coexisting with low-plated resident stickleback in the absence of intermediate partially plated fish. Microhabitat and seasonal isolation appear to contribute to reproductive isolation between the two forms.