LTREB: Long-Term Studies on the Recruitment Dynamics of Shallow Water Epifaunal Communities

LTREB：浅水表层动物群落补充动态的长期研究

• 批准号: 0002251
• 负责人: Robert Whitlatch
• 金额: $ 24.05万
• 依托单位: University of Connecticut
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-08-15 至 2006-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0002251&HistoricalAwards=false
• 关键词: LTREB; Long; Term; Studies; Recruitment

This LTREB project will support data collection on weekly recruitment patterns of a taxonomically diverse assemblage of benthic epifaunal invertebrates common to the southern New England coastal zone. Over the five year study period, data will be added to address (a) whether short-term, week?to?week variability in recruitment is tidally controlled, (b) whether recent invasive species differ in the timing, intensity, or duration of the recruitment period relative to resident species, and (c) whether annual fluctuations in water temperature affecting the timing and intensity of recruitment for a variety of species with different life history types. By collecting new data on larval abundances and additional environmental variables, the following will also be examined: (a) whether larval supply, recruitment and adult abundance are correlated, (b) whether taxa with short?living (lecithotrophic) larvae exhibit a greater degree of local control of recruitment than taxa with longer?lived (planktotrophic) larvae, and (c) whether inter?annual variability in recruitment is correlated with other environmental variables such as salinity, dissolved oxygen or chlorophyll a ('food) levels. Collectively, these measurements will provide a long-term database on the responses of marine organisms to changing environmental conditions (e.g., global temperature warming) and the detection of new species that are introduced into the region. In addition to these more applied benefits, understanding the role of larval supply and recruitment is a widely appreciated step in understanding why and how adult populations of marine organisms fluctuate through space and time. Data will also be available to the research community for use in modeling investigations or meta?analyses.

这个LTREB项目将支持每周招聘模式的分类多样性组合底栖表生无脊椎动物常见的南部新英格兰沿海区的数据收集。在五年的研究期间，数据将被添加到解决（一）是否短期，周？到哪里去？周的变化在招聘潮汐控制，（B）是否最近的入侵物种不同的时间，强度，或相对于常驻物种的招聘期的持续时间，和（c）是否每年的水温波动影响的时间和强度的招聘为各种不同的生活史类型的物种。通过收集关于幼虫丰度和其他环境变量的新数据，还将研究以下问题：（a）幼虫供应、补充和成虫丰度是否相关，（B）短？活（lecithotrophic）幼虫表现出更大程度的本地控制招聘比类群更长？活（异养）幼虫，和（c）是否间？补充量的年度变化与其他环境变量有关，如盐度、溶解氧或叶绿素a（“食物”）水平。总的来说，这些测量将提供一个关于海洋生物对不断变化的环境条件的反应的长期数据库（例如，全球变暖）和检测引入该地区的新物种。除了这些更实用的好处之外，了解幼虫供应和补充的作用是了解海洋生物成年种群在空间和时间上波动的原因和方式的一个广泛赞赏的步骤。数据也将提供给研究界用于建模调查或Meta？分析。