DISSERTATION RESEARCH: Quantifying the Strength of Spatial Coexistence Mechanisms in Experimental Metacommunities
论文研究:量化实验元社区中空间共存机制的强度
基本信息
- 批准号:1601349
- 负责人:
- 金额:$ 1.93万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2016
- 资助国家:美国
- 起止时间:2016-04-15 至 2020-03-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Understanding the ecological processes that promote biological diversity and allow multiple species to coexist is fundamental for conservation and management. Understanding how the abiotic environment, such as light or nutrient levels, changes from place to place and how individuals of multiple species are clustered is often overlooked, but is critically important. This research will develop a method to directly measure how structure in the abiotic environment and in the clustering of individuals promotes coexistence between species. The scientific workforce will be strengthened through support for the education and training of a doctoral student and undergraduate students in theoretical and experimental ecology, and a high school teaching module will be developed to expose students to biological diversity experiments in ecology.The role of landscape structure in promoting diversity will be examined by combining a laboratory experimental system of freshwater microorganisms with mathematical models. Two hypotheses will be tested: (1) clustering of individuals will be the dominant mechanism leading to coexistence, and (2) stochasticity will reduce the strength of coexistence by weakening the effect of clustering. Diversity outcomes will be examined for multispecies communities of aquatic microorganisms in replicated laboratory experiments, where spatial structure, species abundance, dispersal, and abiotic conditions will be systematically manipulated. Mathematical models tailored to the experimental system will be developed to indirectly quantify and compare the contributions of different mechanisms of coexistence. The performance of the indirect method, which is commonly used for quantifying coexistence, will be assessed against the new experimental method developed. The proposed work will lead to a deeper understanding of how spatial structure promotes biodiversity.
了解促进生物多样性和允许多个物种共存的生态过程是保护和管理的基础。了解非生物环境(如光照或营养水平)如何从一个地方到另一个地方发生变化,以及多个物种的个体如何聚集在一起,往往被忽视,但至关重要。这项研究将开发一种方法来直接测量非生物环境中的结构和个体集群如何促进物种之间的共存。 将通过支持对一名博士生和一名大学生进行理论和实验生态学方面的教育和培训,加强科学工作者队伍,并将开发一个高中教学模块,使学生接触生态学方面的生物多样性实验,将通过将淡水微生物实验室实验系统与数学模型相结合,研究景观结构在促进多样性方面的作用。 将检验两个假设:(1)个体的聚集将是导致共存的主导机制,(2)随机性将通过削弱聚集效应而降低共存的强度。多样性的结果将检查水生微生物的多物种群落在复制的实验室实验,空间结构,物种丰度,扩散和非生物条件将系统地操纵。将开发针对实验系统的数学模型,以间接量化和比较不同共存机制的贡献。间接方法的性能,这是常用的量化共存,将评估对新的实验方法开发。拟议的工作将导致更深入地了解空间结构如何促进生物多样性。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Brett Melbourne其他文献
Widening global variability in grassland biomass since the 1980s
自 20 世纪 80 年代以来全球草地生物量的变异性不断增大
- DOI:
10.1038/s41559-024-02500-x - 发表时间:
2024-08-05 - 期刊:
- 影响因子:14.500
- 作者:
Andrew S. MacDougall;Ellen Esch;Qingqing Chen;Oliver Carroll;Colin Bonner;Timothy Ohlert;Matthias Siewert;John Sulik;Anna K. Schweiger;Elizabeth T. Borer;Dilip Naidu;Sumanta Bagchi;Yann Hautier;Peter Wilfahrt;Keith Larson;Johan Olofsson;Elsa Cleland;Ranjan Muthukrishnan;Lydia O’Halloran;Juan Alberti;T. Michael Anderson;Carlos A. Arnillas;Jonathan D. Bakker;Isabel C. Barrio;Lori Biederman;Elizabeth H. Boughton;Lars A. Brudvig;Martin Bruschetti;Yvonne Buckley;Miguel N. Bugalho;Marc W. Cadotte;Maria C. Caldeira;Jane A. Catford;Carla D’Antonio;Kendi Davies;Pedro Daleo;Christopher R. Dickman;Ian Donohue;Mary Ellyn DuPre;Kenneth Elgersma;Nico Eisenhauer;Anu Eskelinen;Catalina Estrada;Philip A. Fay;Yanhao Feng;Daniel S. Gruner;Nicole Hagenah;Sylvia Haider;W. Stanley Harpole;Erika Hersch-Green;Anke Jentsch;Kevin Kirkman;Johannes M. H. Knops;Lauri Laanisto;Lucíola S. Lannes;Ramesh Laungani;Ariuntsetseg Lkhagva;Petr Macek;Jason P. Martina;Rebecca L. McCulley;Brett Melbourne;Rachel Mitchell;Joslin L. Moore;John W. Morgan;Taofeek O. Muraina;Yujie Niu;Meelis Pärtel;Pablo L. Peri;Sally A. Power;Jodi N. Price;Suzanne M. Prober;Zhengwei Ren;Anita C. Risch;Nicholas G. Smith;Grégory Sonnier;Rachel J. Standish;Carly J. Stevens;Michelle Tedder;Pedro Tognetti;G. F. (Ciska) Veen;Risto Virtanen;Glenda M. Wardle;Elizabeth Waring;Amelia A. Wolf;Laura Yahdjian;Eric W. Seabloom - 通讯作者:
Eric W. Seabloom
Brett Melbourne的其他文献
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{{ truncateString('Brett Melbourne', 18)}}的其他基金
Collaborative Research: BEE: Understanding Evolutionary Rescue
合作研究:BEE:理解进化拯救
- 批准号:
1930222 - 财政年份:2019
- 资助金额:
$ 1.93万 - 项目类别:
Standard Grant
DISSERTATION RESEARCH: Genetic Mechanisms of Spatial Eco-Evolutionary Dynamics in Range Expansions
论文研究:范围扩张中空间生态进化动力学的遗传机制
- 批准号:
1601333 - 财政年份:2016
- 资助金额:
$ 1.93万 - 项目类别:
Standard Grant
Collaborative Research: Species Interactions in Range Dynamics and Changing Environments: Stochastic Models and Experiments
协作研究:范围动态和变化环境中的物种相互作用:随机模型和实验
- 批准号:
1457660 - 财政年份:2015
- 资助金额:
$ 1.93万 - 项目类别:
Standard Grant
Collaborative Research: The roles of demography, genetics, and stochasticity in colonization
合作研究:人口学、遗传学和随机性在殖民化中的作用
- 批准号:
0949595 - 财政年份:2010
- 资助金额:
$ 1.93万 - 项目类别:
Continuing Grant
Collaborative Research: Range Limits and Their Response to Environmental Change: Experiments and Stochastic Models
合作研究:范围限制及其对环境变化的响应:实验和随机模型
- 批准号:
0918938 - 财政年份:2009
- 资助金额:
$ 1.93万 - 项目类别:
Standard Grant
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