Recruitment Success in Infauna: Costs and Benefits of Juvenile Emigration

动物群的成功招募：青少年移民的成本和收益

• 批准号: 8900212
• 负责人: Sarah Woodin
• 金额: $ 19.86万
• 依托单位: University of South Carolina at Columbia
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-06-01 至 1994-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8900212&HistoricalAwards=false
• 关键词: Recruitment; Success; Infauna; Costs; Benefits

Sedimentary systems are a constantly shifting mosaic of sites that are more or less risky for settling larvae. The infauna move, and the biogenically controlled aspects of the habitat shift with their movements, movements that occur on short temporal scales. The juveniles of many infaunal organisms emigrate in response to such biogenic degradation of the habitat. How important are these movements to the survivorship of the juveniles, how costly are they in terms of growth? These are the central questions of the research proposed herein. Without measurements of the cost and/or benefits of such movements by juveniles, we cannot evaluate our models of recruitment in sedimentary systems. The proposed research will provide those measurements for members of the three dominant infaunal taxa, the bivalves, polychaetes and small crustaceans.

沉积系统是一个不断变化的地点镶嵌体，对幼虫的定居或多或少有风险。 动物群的移动以及栖息地的生物控制方面随着它们的运动而变化，这些运动发生在短时间尺度上。 许多底栖生物的幼体会因栖息地的生物退化而迁移。 这些运动对于幼体的生存有多重要，它们在成长方面的代价有多大？ 这些是本文提出的研究的核心问题。 如果不测量幼体此类运动的成本和/或收益，我们就无法评估我们在沉积系统中的补充模型。 拟议的研究将为三种主要的动物类群——双壳类、多毛类和小型甲壳类动物——的成员提供这些测量结果。