Trace: Tennessee Research and Creative Exchange Ecology and Evolutionary Biology Publications and Other Works Ecology and Evolutionary Biology Spatial Geographic Mosaic in an Aquatic Predator- Prey Network Recommended Citation Spatial Geographic Mosaic in an Aquatic Predator-prey Network
Trace: Tennessee Research and Creative Exchange Ecology and Evolutionary Biology Publications and Other Works Ecology and Evolutionary Biology Spatial Geographic Mosaic in an Aquatic Predator- Prey Network Recommended Citation Spatial Geographic Mosaic in an Aquatic Predator-prey Network
复制标题
跟踪：田纳西州研究和创意交流 生态学和进化生物学出版物和其他作品 生态学和进化生物学 水生捕食者-猎物网络中的空间地理镶嵌图 推荐引文 水生捕食者-猎物网络中的空间地理镶嵌图
DOI：
--
复制
发表时间：
--
期刊：
影响因子：
--
通讯作者：
Mikhail V Matz
中科院分区：
文献类型：
--
作者：
J. Chaves;Steven G. Johnson;C. Hulsey;J. Chaves;C. Hulsey;Darrin;Darrin C. Hulsey;Mikhail V Matz
协同进化的地理镶嵌理论预测：1）捕食结构和猎物防御特征的空间变异; 2）基因流介导的某些区域的特征匹配和其他区域的特征不匹配。我们研究了基因流，并记录了淡水蜗牛Mexipyrgus churinceanus，Mexithauma quadripaludium，Nymphophilus minckleyi的抗破碎性的空间变异，以及它与营养多态性鱼类Herichthys minckleyi的破碎形态型的相对频率的关系。破碎阻力和破碎形态型的频率确实显示了空间变异11自然复制的社区在墨西哥的Cuatro Ciénegas山谷，这些物种都是特有的。种群间抗压碎性的变异不能用地理邻近性或任何物种的遗传相似性来解释。我们检测到明确的地理分布模式和有限的基因流的蜗牛，但不是鱼。在Cuatro Ciénegas的蜗牛种群之间的基因流动可以解释镶嵌壳强度的局部分歧，并防止固定的破碎形态型Herichthys minckleyi。最后，与整个马赛克的性状匹配一致，鱼类形态型的频率与壳破碎阻力呈负相关，可能反映了在蜗牛表现出相对较高的破碎阻力的社区中破碎形态型的相对劣势。版权所有：这是一篇开放获取的文章，根据知识共享署名许可证的条款分发，该许可证允许在任何媒体上不受限制地使用，分发和复制，前提是原作者和来源被记入。
The geographic mosaic theory of coevolution predicts 1) spatial variation in predatory structures as well as prey defensive traits, and 2) trait matching in some areas and trait mismatching in others mediated by gene flow. We examined gene flow and documented spatial variation in crushing resistance in the freshwater snails Mexipyrgus churinceanus, Mexithauma quadripaludium, Nymphophilus minckleyi, and its relationship to the relative frequency of the crushing morphotype in the trophically polymorphic fish Herichthys minckleyi. Crushing resistance and the frequency of the crushing morphotype did show spatial variation among 11 naturally replicated communities in the Cuatro Ciénegas valley in Mexico where these species are all endemic. The variation in crushing resistance among populations was not explained by geographic proximity or by genetic similarity in any species. We detected clear phylogeographic patterns and limited gene flow for the snails but not for the fish. Gene flow among snail populations in Cuatro Ciénegas could explain the mosaic of local divergence in shell strength and be preventing the fixation of the crushing morphotype in Herichthys minckleyi. Finally, consistent with trait matching across the mosaic, the frequency of the fish morphotype was negatively correlated with shell crushing resistance likely reflecting the relative disadvantage of the crushing morphotype in communities where the snails exhibit relatively high crushing resistance. Copyright: ß 2011 Chaves-Campos et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
影响因子：
10.7
作者：
Hey, Jody
通讯作者：
Hey, Jody
影响因子：
10.7
作者：
Hey, Jody
通讯作者：
Hey, Jody
DOI：
10.1016/s1570-9639(03)00203-6
发表时间：
2003-08-21
影响因子：
3.2
作者：
Marxen, JC;Nimtz, M;Mann, K
通讯作者：
Mann, K