Dissertation Research: History matters: predicting fine-scale biodiversity in a dynamic rainforest system

论文研究：历史很重要：预测动态雨林系统中的精细生物多样性

• 批准号: 0709603
• 负责人: Mark Schwartz
• 金额: $ 1.2万
• 依托单位: University of California-Davis
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-07-01 至 2009-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0709603&HistoricalAwards=false
• 关键词: Dissertation; Research; History; matters; predicting

Invertebrates represent the bulk of animal diversity, but are rarely represented in spatial analyses of biodiversity. This project sheds light on the relative contributions of contemporary and historical climate in shaping patterns of species turnover of invertebrate taxa in a high biodiversity area, the rainforests of north eastern Australia. Although it is recognized that historical conditions play a large role in shaping contemporary patterns of biodiversity, history is rarely included in empirical models. The proposed work integrates molecular, distributional and environmental data with spatially explicit models of late Pleistocene climate fluctuation to predict turnover in two diverse, but poorly-known invertebrate groups, insects and snails. The proposed project examines the effect of dispersal capability on patterns of species turnover and the effect of geographic scale in shaping the relative contribution of historical and contemporary factors on species turnover. This research strengthens existing international research partnerships with taxonomists and ecological modelers in Australia. Results of this research will be disseminated in scientific and public forums in the USA and Australia. This research will benefit society by describing how species have responded to climate change in the past to better understand how they may respond in the future. The methods and insights developed here regarding the effect of history on the spatial distribution of invertebrate biodiversity have relevance to high biodiversity ecosystems worldwide.

无脊椎动物代表了动物多样性的大部分，但在生物多样性的空间分析中很少代表。该项目阐明了当代和历史气候在高生物多样性地区（澳大利亚东北部雨林）中无脊椎动物分类单元的塑造模式中的相对贡献。尽管人们认识到历史条件在塑造当代生物多样性模式中起着很大的作用，但历史很少被包括在经验模型中。拟议的工作将分子，分布和环境数据与更新世气候波动的空间明确模型相结合，以预测两个不同但知名的无脊椎动物，昆虫和蜗牛的周转。 拟议的项目研究了分散能力对物种离职模式的影响以及地理量表对塑造历史和当代因素对物种离职的相对贡献的影响。 这项研究加强了与澳大利亚分类学家和生态建模者的现有国际研究伙伴关系。这项研究的结果将在美国和澳大利亚的科学和公共论坛中传播。这项研究将通过描述物种对过去的气候变化的反应，以更好地了解它们将来如何反应，从而使社会受益。这里开发的关于历史对无脊椎动物生物多样性空间分布的影响的方法和见解与全球高的生物多样性生态系统有关。