Collaborative Research: Developmental Strategies in Benthic Marine Invertebrates: Evolutionary Effects

合作研究：底栖海洋无脊椎动物的发育策略：进化效应

• 批准号: 9015453
• 负责人: James Valentine
• 金额: --
• 依托单位: University of California-Santa Barbara
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-07-01 至 1990-10-15
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9015453&HistoricalAwards=false
• 关键词: Collaborative; Research; Developmental; Strategies; Benthic

PIs will continue research on the role of intrinsic factors in evolutionary rates and modes of marine invertebrates, centering on the bivalves and shelled gastropods in two reigons: the Neocene (including Recent) of the eastern Pacific and the Late Cretaceous of the Gulf and Atlantic Coastal Plain. PIs will refine databases on developmental modes and geographic and bathymetric ranges, add data on body size and population densities, and collect more data on patterns of extinction, survival and rebound for European mollusks around the Cretaceous- Tertiary (K-T) boundary. PIs will test hypotheses on: separate and continued effects of geographic range, developmental modes, body size, population density, and preservation potential on evolutionary rates and patterns; relation of those patterns to bathymety and latitude; evolutionary trends in body size and the frequency of Cope's Rule (broadly vs narrowly defined); and similarity of survivorship and rebound patterns at the K-T boundary in Europe and North America, and their relation to the background patterns as listed above.

研究员将继续研究内在因素在海洋无脊椎动物进化速率和模式中的作用，重点是两个地区的双壳类和带壳腹足类：东太平洋的新世（包括最近）和海湾和大西洋沿岸平原的晚白垩世。研究所将完善关于发展模式以及地理和水深范围的数据库，增加关于体型和种群密度的数据，并收集更多关于白垩纪-第三纪边界周围欧洲软体动物灭绝、生存和反弹模式的数据。PI将检验以下假设：地理范围、发育模式、体型、种群密度和保存潜力对进化速率和模式的单独和持续影响;这些模式与水深和纬度的关系;体型的进化趋势和科普规则的频率（广义vs狭义）;欧洲和北美K-T边界的存活和反弹模式的相似性，以及它们与上述背景模式的关系。