Mechanisms generating microgeographic clines in shell traits in intertidal snail populations

潮间带蜗牛群体壳性状微地理特征的产生机制

• 批准号: RGPIN-2015-05468
• 负责人: Boulding, Elizabeth
• 金额: $ 1.53万
• 依托单位: University of Guelph
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=590449
• 关键词: Mechanisms; generating; microgeographic; clines; shell

My research program uses experiments, genomics, and modelling to test the hypothesis that genetic divergence within populations of direct-developing intertidal snails is maintained by spatial variation in selection by predators and by the risk of dislodgement from waves. My long-term field predator invasion experiments on Vancouver Island, Canada test the prediction that transplanting predatory shore crabs into wave-exposed areas where they are normally rare will cause evolution of a microgeographic cline in shell thickness in the surrounding populations of

我的研究项目使用实验、基因组学和建模来检验这样的假设：直接发育的潮间带蜗牛种群内的遗传分化是通过捕食者选择的空间变化和从波浪中移出的风险来维持的。我在加拿大温哥华岛进行的长期野外捕食者入侵实验验证了这样的预测：将捕食性岸蟹移植到通常很少见的暴露于波浪的区域将导致周围种群的壳厚度发生微地理梯度的演化。