LTREB: Evolutionary and demographic responses to climate in natural populations
LTREB: Evolutionary and demographic responses to climate in natural populations
批准号:
1654655
负责人:
Diane Campbell
金额:
$38.91万
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
2017
资助国家:
美国
项目状态:
已结题
起止时间:
2017-02-01 至 2022-01-31
中文摘要
点击翻译按钮获取中文摘要
英文摘要
The purpose of this study is to understand how a rapidly changing environment influences natural selection and population size. Many species of plants and animals can be threatened by rapid environmental change, such as an increase in frequency or severity of drought. This research will test the conditions required for a population to avoid collapse due to climate change through a process of adapting to the new environmental conditions. It will add to the longest-running data set on how selection in plants changes in response to changes in annual snowpack and pollinator availability, and to model for the first time how adaptation to these conditions allows populations to recover. It will determine how selective pressures change in response to water availability, how genetic variation in leaf and flower traits interact with climate change to affect birth and death rates, and how changes in pollination patterns and rates interact with the physical environment to influence evolutionary change. Responses of population size to climate change will be projected over the next century and provide a case study of how other species might respond. The project will include the training of diverse undergraduate and graduate students and a postdoctoral associate. Field science tours at the Rocky Mountain Biological Laboratory will be led for outreach to the general public and to K-12 teachers. In addition, a citizen science project will allow the public to contribute to the building of maps of pollinator abundance across the western US.This project will continue a 10-year field experiment with common gardens near the Rocky Mountain Biological Laboratory to measure natural selection on, and the extent of genetic variance in, traits of Ipomopsis aggregata subspp. aggregata and Ipomopsis tenuituba (Polemoniaceae). In combination with unique data on how absolute fitness is altered by snowmelt date, models for evolutionary rescue will be fully parameterized in nature. The relationship between selection of functional vegetative traits and water availability will be determined with two approaches: observational data on selection over two decades and a new experimental manipulation of snowmelt date and summer precipitation. The project will examine the dependence of evolutionary and demographic responses on genetic variance in traits, as measured from a full-sib breeding design. The extent of adaptive phenotypic plasticity in response to annual snowmelt date will also be incorporated into projections of population size. Although prior studies of plant adaptation to climate have emphasized vegetative traits, floral traits (shape, color, rewards, volatiles) will be modeled as well, as selection on them depends on water availability and pollinator abundance.
期刊论文(12)
专著(0)
科研奖励(0)
会议论文
登录
查看更多内容
Earlier snow melt and reduced summer precipitation alter floral traits important to pollination
积雪提前融化和夏季降水减少改变了对授粉重要的花卉特征
DOI:
10.1111/gcb.15908
发表时间:
2021
期刊:
Global Change Biology
影响因子:
11.6
作者:
[Powers, John M., Briggs, Heather M., Dickson, Rachel G., Li, Xinyu, Campbell, Diane R.]
通讯作者:
Campbell, Diane R.
DOI:
10.3389/fevo.2021.641693
发表时间:
2021-03-25
期刊:
FRONTIERS IN ECOLOGY AND EVOLUTION
影响因子:
3
作者:
[Gallagher, M. Kate, Campbell, Diane R.]
通讯作者:
Campbell, Diane R.
DOI:
10.1073/pnas.1820096116
发表时间:
2019-06-25
期刊:
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
影响因子:
11.1
作者:
[Campbell, Diane R.]
通讯作者:
Campbell, Diane R.
DOI:
10.3389/fevo.2022.1006416
发表时间:
2022-10-20
期刊:
FRONTIERS IN ECOLOGY AND EVOLUTION
影响因子:
3
作者:
[Eisen,Katherine E. E., Powers,John M. M., Campbell,Diane R. R.]
通讯作者:
Campbell,Diane R. R.
DOI:
10.1093/aob/mcad195
发表时间:
2023-12-23
期刊:
ANNALS OF BOTANY
影响因子:
4.2
作者:
[Wu,Carrie, Powers,John M., Campbell,Diane R.]
通讯作者:
Campbell,Diane R.
共 9 条
LTREB Renewal: Evolutionary and Demographic Responses to Climate in Natural Populations
-
批准号:2135270
-
项目类别:Continuing Grant
-
资助金额:$59.97万
-
财政年份:2022
-
负责人:Diane Campbell
-
依托单位:
DISSERTATION RESEARCH: Effects of experimental shifts in soil moisture and flowering phenology on plant-pollinator interactions
-
批准号:1601191
-
项目类别:Standard Grant
-
资助金额:$1.63万
-
财政年份:2016
-
负责人:Diane Campbell
-
依托单位:
Ecological Speciation and the Physiological Performance of Plant Hybrids in Ipomopsis
-
批准号:0542876
-
项目类别:Continuing Grant
-
资助金额:$40.0万
-
财政年份:2006
-
负责人:Diane Campbell
-
依托单位:
Dissertation Research: Mechanisms Defining Ecological Range Limits in a Plant Hybrid Zone
-
批准号:0608284
-
项目类别:Standard Grant
-
资助金额:$1.2万
-
财政年份:2006
-
负责人:Diane Campbell
-
依托单位:
DISSERTATION RESEARCH: Genetic and Ecophysiological Causes of Differential Fitness in a Natural Plant Hybrid Zone
-
批准号:0308772
-
项目类别:Standard Grant
-
资助金额:$1.2万
-
财政年份:2003
-
负责人:Diane Campbell
-
依托单位:
Dissertation Research: Comparing Prezygotic Isolating Mechanisms in Unimodal and Bimodal Plant Hybrid Zones.
-
批准号:0206279
-
项目类别:Standard Grant
-
资助金额:$0.99万
-
财政年份:2002
-
负责人:Diane Campbell
-
依托单位:
Lifetime Fitness of Hybrids in Natural Plant Populations: Testing Models for Hybrid Zones
-
批准号:9806547
-
项目类别:Standard Grant
-
资助金额:$20.0万
-
财政年份:1998
-
负责人:Diane Campbell
-
依托单位:
Evolutionary Dynamics of a Plant Hybrid Zone
-
批准号:9407144
-
项目类别:Continuing Grant
-
资助金额:$32.54万
-
财政年份:1994
-
负责人:Diane Campbell
-
依托单位:
Mechanisms and Consequences of Fitness in a Natural Plant Population
-
批准号:8996306
-
项目类别:Continuing Grant
-
资助金额:$23.45万
-
财政年份:1989
-
负责人:Diane Campbell
-
依托单位:
Mechanisms and Consequences of Fitness in a Natural Plant Population
-
批准号:8818066
-
项目类别:Continuing Grant
-
资助金额:$4.8万
-
财政年份:1989
-
负责人:Diane Campbell
-
依托单位:
Mate Selection in a Montane Wildflower
-
批准号:8516498
-
项目类别:Standard Grant
-
资助金额:$15.71万
-
财政年份:1986
-
负责人:Diane Campbell
-
依托单位:
海外基金