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Community Context Shapes Evolutionary Trajectories in Microbial Communities
Community Context Shapes Evolutionary Trajectories in Microbial Communities
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202104822
- ISBN
- 9798291503331
- DDC
- 574.5
- 서명/저자
- Community Context Shapes Evolutionary Trajectories in Microbial Communities
- 발행사항
- [Sl] : University of Minnesota, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 295 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-02, Section: B.
- 주기사항
- Advisor: Harcombe, William.
- 학위논문주기
- Thesis (Ph.D.)--University of Minnesota, 2025.
- 초록/해제
- 요약All life on Earth exists in an ecological context, what Darwin called the "tangled bank", where "elaborately constructed forms, so different from each other, and dependent upon each other in so complex a manner, have all been produced by laws acting around us". In the tangled bank, organisms participate in diverse relationships, competing for space and resources, eating one another, killing each other with chemicals, and engaging in mutual aid. The strength and sign of ecological interactions can change with abiotic and biotic context and over the course of evolutionary time. For this reason, understanding the feedback between ecological and evolutionary processes in complex communities is challenging, particularly when organisms from multiple trophic levels are present. How does increasing community complexity change the nature of the pairwise interactions in which a focal organism is engaged? When and how does community context shape or constrain evolution? I test these questions using various modeling approaches and a synthetic microbial community. First, I examine the impact of ecological interactions between bacterial hosts on the evolution of host range in their viral predators. Next, I demonstrate that intracellular parasites of microbes can change microbial community structure and productivity by changing the metabolism of their hosts. Finally, I investigate how key ecosystem properties like spatial structure and growth rate determine the strength of ecological interactions and therefore shape selection on the production of diffusive metabolites like toxins. Taken together, my work emphasizes that eco-evolutionary dynamics in the tangled bank can be governed by predictable processes and sets the stage for more effective management of microbial communities for biomedical and bioengineering purposes.
- 일반주제명
- Ecology
- 일반주제명
- Microbiology
- 일반주제명
- Evolution & development
- 기타저자
- University of Minnesota Ecology Evolution and Behavior
- 기본자료저록
- Dissertations Abstracts International. 87-02B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■006m o d
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■020 ▼a9798291503331
■035 ▼a(MiAaPQ)AAI32169378
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a574.5
■1001 ▼aBisesi, Avery Taylor.
■24510▼aCommunity Context Shapes Evolutionary Trajectories in Microbial Communities
■260 ▼a[Sl]▼bUniversity of Minnesota▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a295 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-02, Section: B.
■500 ▼aAdvisor: Harcombe, William.
■5021 ▼aThesis (Ph.D.)--University of Minnesota, 2025.
■520 ▼aAll life on Earth exists in an ecological context, what Darwin called the "tangled bank", where "elaborately constructed forms, so different from each other, and dependent upon each other in so complex a manner, have all been produced by laws acting around us". In the tangled bank, organisms participate in diverse relationships, competing for space and resources, eating one another, killing each other with chemicals, and engaging in mutual aid. The strength and sign of ecological interactions can change with abiotic and biotic context and over the course of evolutionary time. For this reason, understanding the feedback between ecological and evolutionary processes in complex communities is challenging, particularly when organisms from multiple trophic levels are present. How does increasing community complexity change the nature of the pairwise interactions in which a focal organism is engaged? When and how does community context shape or constrain evolution? I test these questions using various modeling approaches and a synthetic microbial community. First, I examine the impact of ecological interactions between bacterial hosts on the evolution of host range in their viral predators. Next, I demonstrate that intracellular parasites of microbes can change microbial community structure and productivity by changing the metabolism of their hosts. Finally, I investigate how key ecosystem properties like spatial structure and growth rate determine the strength of ecological interactions and therefore shape selection on the production of diffusive metabolites like toxins. Taken together, my work emphasizes that eco-evolutionary dynamics in the tangled bank can be governed by predictable processes and sets the stage for more effective management of microbial communities for biomedical and bioengineering purposes.
■590 ▼aSchool code: 0130.
■650 4▼aEcology
■650 4▼aMicrobiology
■650 4▼aEvolution & development
■653 ▼aMicrobial communities
■653 ▼aEvolutionary trajectories
■653 ▼aMicrobial interactions
■653 ▼aEcological networks
■653 ▼aNiche construction
■690 ▼a0329
■690 ▼a0412
■690 ▼a0410
■71020▼aUniversity of Minnesota▼bEcology, Evolution and Behavior.
■7730 ▼tDissertations Abstracts International▼g87-02B.
■790 ▼a0130
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17359018▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
