Why do some types of biotic change produce predictable ecological, evolutionary and life history strategy change?

为什么某些类型的生物变化会产生可预测的生态、进化和生活史策略变化？

基本信息

批准号：
EP/Y029720/1
负责人：
Tim Coulson
金额：
$ 269.79万
依托单位：
University of Oxford
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2024
资助国家：
英国
起止时间：
2024 至无数据
项目状态：
未结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FY029720%2F1
关键词：
Why do some types biotic

项目摘要

What am I going to do?Identify the causes of i) ecological changes in the species interaction network of the Yellowstone ecosystem, ii) ecological and micro-evolutionary changes in the species interaction networks of freshwater streams in Trinidad observed over 20-30 generations and iii) macro-evolutionary changes in silvereyes (passerine birds) that repeatedly colonise oceanic islands from the Australian mainland before modifying and adapting to the island species interaction networks they become part of. In addressing these system-specific questions I will generate general new theory into the ecological, micro-, and macro-evolutionary consequences of changes inpredation regime.Why am I going to do this?Changes in predation regime are occurring across the globe. They are also thought to have generated the patterns seen in each of my systems. More generally, they have been argued to be responsible for striking patterns of ecological and evolutionary change such as trophic cascades, rapid life history and phenotypic trait adaptation in aquatic ecosystems, and macro-evolutionary patterns such as the island rule. However, although such dynamics are widespread, they are not universal, and this has generated disagreement over the consequences of shifts in predation regime.How am I going to do this?It is impossible to run replicated experiments to investigate how a change in predation regime impacts species interaction networks across ecological and evolutionary timescales, so an alternative approach is required. I have selected my study systems because of the remarkable amounts of data available, and these data will allow me to construct and parameterise complex simulations of species interaction networks. I will then use a highly innovative approach to simplify the simulations to identify the role of a shift in predation regime in each system, and also create general, new, theory on the consequences of shifts in predation regime.

What am I going to do?Identify the causes of i) ecological changes in the species interaction network of the Yellowstone ecosystem, ii) ecological and micro-evolutionary changes in the species interaction networks of freshwater streams in Trinidad observed over 20-30 generations and iii) macro-evolutionary changes in silvereyes (passerine birds) that repeatedly colonise oceanic islands from the Australian mainland before modifying and adapting to the island它们成为的物种相互作用网络。在解决这些系统特定的问题时，我将为变化侵入性制度的生态，微观和宏观进化后果产生一般的新理论。我为什么要这样做？全球范围内发生了捕食方案的变化。人们还认为它们已经产生了我每个系统中看到的模式。更普遍地，他们被认为是造成生态和进化变化的引人注目的模式，例如营养的级联，快速的生活史和水生生态系统中的表型特质适应以及诸如岛屿规则之类的宏观进化模式。但是，尽管这种动态是普遍的，但它们并不普遍，这已经在捕食方案的变化后果上产生了分歧。我将如何执行此操作？不可能进行复制的实验来研究捕食方案的变化如何影响物种互动在生态和进化时间范围内如何影响替代方法，因此需要一种替代方法。我之所以选择研究系统，是因为可用的数据可用，这些数据将使我能够对物种相互作用网络的复杂模拟进行构建和参数化。然后，我将使用一种高度创新的方法来简化模拟，以确定每个系统中捕食方案中转变的作用，并创建有关捕食方案转移后果的一般，新的，新的理论。