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: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=547461
• 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.

动植物在其范围的不同部分中通常具有不同的形态，行为和生理特征。表型中的这种地理变化通常与生态条件的变化相关，包括其他生物的存在和流行率，并且似乎赋予人群具有提高能力的利用能力或承受环境变异性的能力。如果在不同的环境中选择不同的基因型（即达尔文主义选择），或者如果给定的基因型在响应环境变异（即表型可塑性）中产生不同的表型，则可能会出现这种适应性和非随机（相对于环境）表型变异。使用理论方法，进化生物学家询问了哪些条件应该有利于这些不同的进化轨迹，但是进行了相对较少的经验研究来测试其预测。