Evolutionary Ecology and Conservation Biology of Fishes

鱼类进化生态学和保护生物学

• 批准号: 170146-2013
• 负责人: Hutchings, Jeffrey
• 金额: $ 4.37万
• 依托单位: Dalhousie University
• 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=522755
• 关键词: Evolutionary; Ecology; Conservation; Biology; Fishes

My research focuses on the tremendous variability in reproductive strategies within and among natural populations. Such life history variation can be reflected by individual differences in age & size at maturity, number of eggs per female, and offspring size. To what extent is the source of this variability genetic, environmental, or some combination thereof? This is a fundamental question to evolutionary ecology and conservation biology. Firstly, the source of variation determines whether life history responses to environmental perturbations, such as habitat alteration and harvesting, will be rapid, slow, or indeed whether they will occur at all. Secondly, the nature of the life history response, i.e., the change in reproductive strategy produced by the environmental change, can affect a population's ability to recover from collapse, persist through time, and sustain exploitation.

我的研究重点是自然种群内部和种群之间生殖策略的巨大差异。这种生活史的差异可以通过成熟时的年龄和大小、每只雌性的卵数和后代大小的个体差异来反映。这种可变性的来源在多大程度上是遗传的、环境的，还是它们的某种组合？这是进化生态学和保护生物学的一个基本问题。首先，变异的来源决定了生命史对环境扰动（如栖息地改变和采伐）的反应是快速的还是缓慢的，或者它们是否会发生。其次，生活史反应的本质，即环境变化所产生的生殖策略的变化，可以影响种群从崩溃中恢复、持续生存和持续开发的能力。