SG: The ecological and evolutionary consequences of mutualisms for species range expansion

SG：互利共生对物种范围扩张的生态和进化后果

• 批准号: 2109965
• 负责人: Allison Shaw
• 金额: $ 19.96万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-08-01 至 2024-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2109965&HistoricalAwards=false
• 关键词: SG; ecological; evolutionary; consequences; mutualisms

It is a common sight to see bees flitting around flowers during springtime or see several bird species consuming fruits from trees through the year. Although the two events seem unrelated, an underlying phenomenon connects them: namely, that the interacting species benefit each other. In the first case, the bees transport pollen for the flowers thereby dispersing and aiding them in reproduction, and the flowers in turn provide nectar to the bees. Birds disperse seeds by consuming the fruit (a benefit to them) and defecating the seeds away from the parent plant. This seed dispersal helps trees from competing against their offspring. These bidirectional positive interactions between species are termed mutualisms. The aim of this project is to develop a mathematical framework to understand how mutualisms impact species dispersal ability in an ecological and evolutionary context. The outcome of this work will help to identify when dispersal should evolve for species participating in a mutualism and how it impacts the spatial spread of the species. The researchers will use their results to foster undergraduate research, implement interdisciplinary teaching modules at the University of Minnesota, and develop management strategies against co-invading mutualistic species.Although there exists theory on how antagonistic interactions such as predation, competition, or parasitism impact species dispersal, there exists very little on the role of mutualisms. Current theory offers contrasting predictions on whether mutualisms promote or hinder how fast species can disperse into new areas (range expansion). More fundamentally, it is unclear whether and how dispersal ability should evolve for species participating in a mutualism. This research will therefore set up a mathematical framework that will help determine under what conditions mutualisms (through effects on demography and dispersal) speed up versus slow down range expansion of the participating species. Secondly, the research will test the conditions under which motility is evolutionarily beneficial in a spatially explicit mutualism between two microbial species. These questions will be addressed through a combination of mathematical models and a tightly controlled microbial experimental system.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.

很常见的景象是在春天期间蜜蜂在鲜花上飘动，或者看到几只鸟类从树木到一年中消耗的水果。尽管这两个事件似乎无关，但一种潜在的现象将它们联系起来：即相互作用的物种彼此受益。在第一种情况下，蜜蜂为花的花粉运输花粉，从而分散并帮助它们繁殖，而这些花又为蜜蜂提供了花蜜。鸟类通过食用果实（对它们的好处）分散种子，并将种子从母植物中排除。这种种子散布有助于树木与后代竞争。物种之间的这些双向积极相互作用称为互惠。该项目的目的是开发一个数学框架，以了解互惠在生态和进化环境中如何影响物种分散能力。这项工作的结果将有助于确定参与互助的物种及其如何影响该物种的空间传播。研究人员将利用他们的结果来培养本质上的研究，在明尼苏达大学实施跨学科的教学模块，并制定管理策略，以防止共同互助互助物种。尽管存在理论，尽管存在理论，尽管对诸如捕食，寄生虫或寄生虫的影响如何影响诸如彼此的拮抗相互作用，但对互惠的作用很小，互动的作用很小。当前的理论提供了关于互助性是否促进还是阻碍物种可以分散到新领域的对比预测（范围扩展）。从根本上讲，目前尚不清楚参与互助的物种是否以及如何发展分散能力。因此，这项研究将建立一个数学框架，该框架将有助于确定在什么条件下（通过对人口统计学和分散的影响）加快参与物种的范围扩展的速度。其次，该研究将测试运动在两个微生物物种之间在空间上显式互助的进化性有益的条件。这些问题将通过数学模型和严格控制的微生物实验系统的结合来解决。该奖项反映了NSF的法定任务，并使用基金会的知识分子优点和更广泛的影响审查标准，被认为值得通过评估来获得支持。

项目成果

Theoretical Advances in the Ecology and Evolution of Mutualistic Interactions – Review of a Symposium ( SYMP 14) Organized at ESA + CSEE 2022 Joint Meeting

生态学和互惠相互作用演化的理论进展 – ESA 举办的研讨会 (SYMP 14) 回顾 – – CSEE 2022 联席会议

• DOI: 10.1002/bes2.2057
• 发表时间: 2023
• 期刊: The Bulletin of the Ecological Society of America
• 作者: Narayanan, Naven;Hale, Kayla R.;Koffel, Thomas;McPeek, Sarah J.
• 通讯作者: McPeek, Sarah J.

How to outrun your parasites (or mutualists): symbiont transmission mode is key

如何超越寄生虫（或共生者）：共生传播模式是关键

• DOI: 10.1111/oik.09374
• 发表时间: 2022
• 期刊: Oikos
• 影响因子: 3.4
• 作者: Shaw, Allison K.

The Movement Ecology of Mutualism ( CSEE / ESA 2022, OOS17 )

互惠主义的运动生态学 ( CSEE / ESA 2022, OOS17 )

• DOI: 10.1002/bes2.2063
• 发表时间: 2023
• 期刊: The Bulletin of the Ecological Society of America
• 作者: Moore, Christopher M.;Shaw, Allison K.;Bruninga‐Socolar, Bethanne;Caves, Eleanor M.;Karnish, Alex T.;Kiesewetter, Kasey N.;Nelson, Annika S.;Pringle, Elizabeth G.
• 通讯作者: Pringle, Elizabeth G.