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CAREER: A role for local adaptation in shaping species coexistence mechanisms

职业：局部适应在塑造物种共存机制中的作用

基本信息

批准号：
1748945
负责人：
Adam Siepielski
金额：
$ 87.46万
依托单位：
University of Arkansas
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2018
资助国家：
美国
起止时间：
2018-07-01 至 2025-06-30
项目状态：
未结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1748945&HistoricalAwards=false
关键词：
CAREER role local adaptation shaping

项目摘要

A big question in ecology is: "How do species that need the same resources avoid driving each other to extinction?" The answer to that question will shed light on why the world is home to so many different species and how we might prevent their extinction. This project explores the question in a relatively new way: through the lens of evolution. The research makes use of an insect model study system - damselflies, which are colorful insect predators similar to dragonflies. Rather than assuming that a species of damselfly is the same no matter what lake it is from, the researcher will attempt to show that damselflies from different lakes are different in how they are built and what they need, and that those differences have big effects on other species of damselflies from the same lakes. The project will also provide meaningful research and teaching opportunities to both undergraduate and graduate students. The researcher will conduct a formal assessment of his mentoring activities to help understand how gaps between scientists and educators are unintentionally created and what we can do to bridge those gaps. Spatially replicated experiments will assess variation among damselfly communities in fitness differences between competing species, which could cause competitive exclusion, and the stabilizing niche differences that prevent exclusion and favor coexistence. Reciprocal transplant experiments will determine whether and how local adaptation affects fitness differences and/or stabilizing effects. Additional experiments using a unique biogeographic pattern will establish whether coexistence evolves as a consequence of competitors co-evolving to reduce competition, or whether competitors have adapted independently to ecological niches where they co-occur. Results from the experimental studies will be combined with measures of environmental factors to determine which features of the environment shape fitness differences and stabilization.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

生态学中的一个大问题是：“需要相同资源的物种如何避免相互灭绝？“这个问题的答案将揭示为什么世界是如此多不同物种的家园，以及我们如何防止它们的灭绝。这个项目以一种相对较新的方式探索这个问题：通过进化的透镜。这项研究利用了一种昆虫模型研究系统-豆娘，这是一种与蜻蜓相似的彩色昆虫捕食者。而不是假设一个物种的豆娘是相同的，无论它是从什么湖，研究人员将试图表明，豆娘从不同的湖泊是不同的，他们是如何建立和他们需要什么，这些差异有很大的影响其他物种的豆娘从相同的湖泊。该项目还将为本科生和研究生提供有意义的研究和教学机会。研究人员将对他的指导活动进行正式评估，以帮助了解科学家和教育工作者之间的差距是如何无意中造成的，以及我们可以做些什么来弥合这些差距。空间复制实验将评估豆娘群落之间的竞争物种，这可能会导致竞争性排斥，和稳定的生态位差异，防止排斥和有利于共存的健身差异的变化。相互移植实验将确定是否以及如何本地适应影响健身差异和/或稳定效果。使用一个独特的生态学模式的其他实验将确定共存是否演变为竞争对手共同进化，以减少竞争的结果，或者竞争对手是否已经独立适应生态位，他们共同出现。实验研究的结果将与环境因素的测量相结合，以确定环境的哪些特征塑造了适应性差异和稳定性。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

期刊论文数量（24）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Climate warming amplifies the frequency of fish mass mortality events across north temperate lakes

气候变暖加剧了北温带湖泊鱼类大规模死亡事件的频率

DOI：
10.1002/lol2.10274
发表时间：
2022
期刊：
Limnology and Oceanography Letters
影响因子：
7.8
作者：
Tye, Simon P.;Siepielski, Adam M.;Bray, Andrew;Rypel, Andrew L.;Phelps, Nicholas B.;Fey, Samuel B.
通讯作者：
Fey, Samuel B.

Interactions between fitness components across the life cycle constrain competitor coexistence

整个生命周期中健身组件之间的相互作用限制了竞争对手的共存

DOI：
10.1111/1365-2656.13927
发表时间：
2023
期刊：
Journal of Animal Ecology
影响因子：
4.8
作者：
Gómez‐Llano, Miguel;Boys, Wade A.;Ping, Taylor;Tye, Simon P.;Siepielski, Adam M.
通讯作者：
Siepielski, Adam M.

No evidence that warmer temperatures are associated with selection for smaller body sizes

没有证据表明较高的温度与较小体型的选择有关

DOI：
10.1098/rspb.2019.1332
发表时间：
2019
期刊：
Proceedings of the Royal Society B: Biological Sciences
影响因子：
0
作者：
Siepielski, Adam M.;Morrissey, Michael B.;Carlson, Stephanie M.;Francis, Clinton D.;Kingsolver, Joel G.;Whitney, Kenneth D.;Kruuk, Loeske E.
通讯作者：
Kruuk, Loeske E.

Environmental Conditions during Development Affect Sexual Selection through Trait-Fitness Relationships

发育过程中的环境条件通过特质-适应性关系影响性选择