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Variation in life history and physiology of reptiles: adaptation at the extremes

爬行动物生命史和生理学的变化：极端适应

基本信息

批准号：
311994-2010
负责人：
Litzgus, Jacqueline
金额：
$ 1.46万
依托单位：
Laurentian University of Sudbury
依托单位国家：
加拿大
项目类别：
Discovery Grants Program - Individual
财政年份：
2011
资助国家：
加拿大
起止时间：
2011-01-01 至 2012-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=481089
关键词：
Variation life history physiology reptiles

项目摘要

My research program examines phenotypic variation at multiple spatial and temporal scales: within individuals over time, among individuals in a population, among conspecific populations, and among species. I conduct applied work that focuses on the spatial ecology, critical habitat identification, and recovery of turtle species at risk; and basic research that focuses on variation in life history, maternal investment, and physiological-ecology of reptiles. The overall objective of the work is to investigate the hypothesis that environmental extremes (in nature and mimicked in the lab) result in different selective pressures on organisms within and among populations, and that these pressures result in unique phenotypic adaptations for maximizing fitness and saving energy. Thus, my research examines how animals respond to stressful environments, including those that occur naturally and those that result from human activities. Furthermore, the work tests key concepts and questions that will advance knowledge in the field of evolutionary ecology, in addition to providing essential data for conservation programs for Canada's reptile species at risk. My research program has a strong record of training students, and incorporating outreach education and stewardship activities.

我的研究项目在多个空间和时间尺度上研究表型变异：随着时间的推移，在一个群体中的个体之间，同种群体之间，以及物种之间。我进行应用工作，重点是空间生态学，关键栖息地识别，并恢复海龟物种的风险;和基础研究，重点是在生活史，孕产妇投资和爬行动物的生理生态变化。这项工作的总体目标是研究这样一个假设，即极端环境（自然界和实验室模拟）会对种群内和种群间的生物产生不同的选择压力，这些压力会导致独特的表型适应，以最大限度地提高适应性和节省能源。因此，我的研究探讨了动物如何应对压力环境，包括那些自然发生的和那些由人类活动造成的。此外，这项工作测试的关键概念和问题，将在进化生态学领域的知识，除了提供必要的数据保护计划，加拿大的爬行动物物种的风险。我的研究项目在培训学生，并结合推广教育和管理活动方面有着良好的记录。