Niche Conservatism: A Population Dynamic Perspective
利基保守主义:人口动态视角
基本信息
- 批准号:9528602
- 负责人:
- 金额:$ 10.5万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:1996
- 资助国家:美国
- 起止时间:1996-04-15 至 2000-09-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
9528602 Holt As the tide of environmental change rises inexorably around us, it is becoming increasingly urgent to understand the capacity of species to respond. An inspection of the fossil record suggests that species vary widely in their abilities to adapt to changed circumstances. Some species seem to adapt very readily to change, whereas others are quite conservative in their basic "ecological niches" (i.e., the environmental conditions in which populations of a species can persist without repeated immigration or introductions of new individuals from external sources). The aim of this research project is to develop a conceptual framework for interpreting both conservatism and rapid change in species' niches, combining a contemporary understanding of genetic change in populations with an understanding of the determinants of change in population size. The basic approach taken is to use mathematical and computer analyses which combine ecology (controls on population size) and genetics (controls on the genetic makeup of populations) to examine how species respond both genetically and numerically to different kinds of variation in their environments. For example, climate change can lead to either an altered environment across the entire range of a species, or possibly just part of its range, in a short period of time. We thus consider a range of scenarios that incorporate both environmental change in time and variations across geographic locations. Findings from this research will address significant fundamental problems in biology--why some species adapt readily and others more slowly (or not at all) in the face of environmental change. The research has implications for important applied problems, such as the design of conservation plans and understanding genetic responses of pest organisms to control programs.
随着我们周围环境变化的浪潮无情地上升,了解物种的应对能力变得越来越紧迫。对化石记录的检查表明,物种在适应变化环境的能力方面差异很大。有些物种似乎非常容易适应变化,而另一些物种在其基本的“生态位”(即,一个物种种群可以在没有反复迁移或从外部来源引入新个体的情况下持续存在的环境条件)中相当保守。本研究项目的目的是建立一个概念框架来解释物种生态位的保守性和快速变化,结合对种群遗传变化的当代理解和对种群规模变化决定因素的理解。所采取的基本方法是使用数学和计算机分析,结合生态学(控制种群规模)和遗传学(控制种群的基因组成)来研究物种如何在遗传上和数字上对环境中不同种类的变化作出反应。例如,气候变化可能在短时间内导致一个物种的整个生存范围或部分生存范围的环境改变。因此,我们考虑了一系列情景,包括时间上的环境变化和地理位置上的变化。这项研究的发现将解决生物学中重要的基本问题——为什么面对环境变化,有些物种适应得很好,而另一些则更慢(或根本不适应)。该研究对重要的应用问题具有启示意义,如保护计划的设计和害虫生物对控制计划的遗传反应的理解。
项目成果
期刊论文数量(0)
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Robert Holt其他文献
Algae biofilm induced surface erosion of acrylic coatings
藻类生物膜引起丙烯酸涂料的表面侵蚀
- DOI:
- 发表时间:
2024 - 期刊:
- 影响因子:6.6
- 作者:
S. Khatri;Michael Mullins;Wilson Cheung;Adem Chich;Robert Holt;Brad Grzybowski;Hung - 通讯作者:
Hung
Robert Holt的其他文献
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{{ truncateString('Robert Holt', 18)}}的其他基金
Collaborative Research: IHBEM: The fear of here: Integrating place-based travel behavior and detection into novel infectious disease models
合作研究:IHBEM:这里的恐惧:将基于地点的旅行行为和检测整合到新型传染病模型中
- 批准号:
2327798 - 财政年份:2023
- 资助金额:
$ 10.5万 - 项目类别:
Standard Grant
Collaborative Research: SG: Clonality and the scope for adaptation in heterogeneous environments
合作研究:SG:克隆性和异构环境中的适应范围
- 批准号:
1923513 - 财政年份:2019
- 资助金额:
$ 10.5万 - 项目类别:
Standard Grant
DISSERTATION RESEARCH: The alteration of landscape nutrient flows by human-induced increases in generalist omnivores
论文研究:人类引起的杂食动物增加对景观养分流的改变
- 批准号:
0909965 - 财政年份:2009
- 资助金额:
$ 10.5万 - 项目类别:
Standard Grant
Collaborative Research: Coevolution of Hosts and Parasitoids Within a Geographic Mosaic
合作研究:地理马赛克中宿主和寄生蜂的共同进化
- 批准号:
0515655 - 财政年份:2005
- 资助金额:
$ 10.5万 - 项目类别:
Continuing Grant
Enhancement of Research Facilities at the Kansas Ecological Reserves
加强堪萨斯生态保护区的研究设施
- 批准号:
9512600 - 财政年份:1996
- 资助金额:
$ 10.5万 - 项目类别:
Standard Grant
U.S.-France Cooperative Research: Theoretical Studies on the Conservation Implications of Predator Removal and Introductions
美法合作研究:捕食者清除和引入的保护意义的理论研究
- 批准号:
9416886 - 财政年份:1995
- 资助金额:
$ 10.5万 - 项目类别:
Standard Grant
LTREB: Long-term Studies of Population and Community Ecology in an Experimentally Fragmented Landscape
LTREB:实验性破碎景观中人口和群落生态学的长期研究
- 批准号:
9308065 - 财政年份:1993
- 资助金额:
$ 10.5万 - 项目类别:
Continuing Grant
REU: Patch Size, Herbivory, and Secondary Succession: An Experimental Study
REU:斑块大小、草食和二次演替:实验研究
- 批准号:
8718088 - 财政年份:1988
- 资助金额:
$ 10.5万 - 项目类别:
Continuing Grant
U.S.-Sweden Cooperative Science: Joint Seminar on Trophic Exploitation, May-June 1985, Umea, Sweden
美国-瑞典合作科学:营养开发联合研讨会,1985 年 5 月至 6 月,瑞典于默奥
- 批准号:
8506639 - 财政年份:1985
- 资助金额:
$ 10.5万 - 项目类别:
Standard Grant
Doctoral Dissertation Research in Political Science
政治学博士论文研究
- 批准号:
7900987 - 财政年份:1979
- 资助金额:
$ 10.5万 - 项目类别:
Standard Grant
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