Functional and Evolutionary Ecology of a Phenotypically Plastic Feeding Morphology

表型塑料摄食形态的功能和进化生态学

基本信息

批准号：
9974594
负责人：
Dianna Padilla
金额：
$ 26万
依托单位：
SUNY at Stony Brook
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
1999
资助国家：
美国
起止时间：
1999-08-15 至 2004-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9974594&HistoricalAwards=false
关键词：
Functional Evolutionary Ecology Phenotypically Plastic

项目摘要

The ability of organisms to change their form in response to short-term changes in the environment is called phenotypic plasticity. This research will examine a group of closely related species (snails) which have been found to have the ability to change their form in response to short term changes in their diet. The PI will be studying snails on both the Atlantic and Pacific shores of North America, and in Australia. The goals of this research are to use computer modeling, field observations and experiments, controlled laboratory experiments, advanced microscopy techniques, and genetics experiments to determine whether the ability to change form is advantageous to individuals, and to determine how widespread this ability is among species. By looking at a wide range of species the PI will be able to determine if there are associations between the ability to be phenotypically plastic and reproductive patterns, diet and habitat, risk of predation, or other ecological features of these species. This work will provide important information about what makes some species able to respond to short-term changes in the environment (be phenotypically plastic) and some species not (have fixed, genetically determined forms). In addition, the results of this work should help the PIs begin to predict the environmental situations and species characteristics where the PIs would expect phenotypic plasticity to be present, and when the PIs would predict that it should not, where species should have fixed morphologies.

生物因响应环境中短期变化而改变形式的能力称为表型可塑性。这项研究将检查一组密切相关的物种（蜗牛），这些物种（蜗牛）具有响应饮食短期变化而改变其形式的能力。 PI将在北美和澳大利亚的大西洋和太平洋海岸上研究蜗牛。这项研究的目标是使用计算机建模，现场观测和实验，受控实验室实验，高级显微镜技术和遗传学实验来确定改变形式的能力是否对个人有利，并确定该能力在物种之间如何广泛。通过查看广泛的物种，PI将能够确定具有表型塑性和生殖模式的能力，饮食和栖息地，捕食风险或这些物种的其他生态特征之间是否存在关联。这项工作将提供有关某些物种能够应对环境中短期变化的重要信息（在表型上是塑料），而某些物种没有（固定，遗传确定的形式）。此外，这项工作的结果应有助于PIS开始预测PI期望存在表型可塑性的环境情况和物种特征，以及PIS何时预测它应该不应该存在，物种应该具有固定的形态。