Ecology and micro-evolution of coastal marine invertebrates

沿海海洋无脊椎动物的生态学和微观进化

• 批准号: 249966-2007
• 负责人: Rochette, Remy
• 金额: $ 2万
• 依托单位: University of New Brunswick
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=524868
• 关键词: Ecology; micro; evolution; coastal; marine

Plants and animals often have different morphological, behavioural and physiological traits in different parts of their range. This geographic variation in phenotype is often correlated with variation in ecological conditions, including presence and prevalence of other organisms, and appears to confer populations with improved capacity to exploit or withstand environmental variability. Such adaptive and non-random (with respect to environment) phenotypic variation may arise if different genotypes are selected in different environments (i.e., Darwinian selection), or if given genotypes produce different phenotypes in response to environmental variation (i.e., phenotypic plasticity). Using theoretical approaches, evolutionary biologists have asked what conditions should favour these different evolutionary trajectories, but relatively little empirical research has been done to test their predictions.

植物和动物在其活动范围的不同地区往往具有不同的形态、行为和生理特征。这种表型的地理变异通常与生态条件的变化有关，包括其他生物的存在和流行，似乎赋予种群更好的利用或承受环境变化的能力。如果不同的基因型在不同的环境中被选择（即达尔文选择），或者给定的基因型在响应环境变化时产生不同的表型（即表型可塑性），则可能出现这种适应性和非随机（相对于环境）表型变异。利用理论方法，进化生物学家已经询问了什么条件应该有利于这些不同的进化轨迹，但是相对较少的实证研究已经完成来验证他们的预测。