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Understanding Evolvability
Understanding Evolvability
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211152819
- ISBN
- 9798384025771
- DDC
- 100
- 서명/저자
- Understanding Evolvability
- 발행사항
- [Sl] : The University of Wisconsin - Madison, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 165 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-02, Section: B.
- 주기사항
- Advisor: Sober, Elliott;Clatterbuck, Hayley.
- 학위논문주기
- Thesis (Ph.D.)--The University of Wisconsin - Madison, 2024.
- 초록/해제
- 요약Over the past thirty years, evolvability has garnered significant interest in evolutionary biology and the philosophy of biology. Broadly defined, evolvability pertains to the evolutionary options available to a given biological entity at a particular time. Champions of the emerging concept maintain that it holds considerable explanatory promise, shedding light on differences in evolutionary outcomes across the Tree of Life and the complex network of factors that influence the amount, bias in direction, and kind of phenotypic variation that could arise within a given population. In doing so, evolvability unifies many seemingly disparate and perplexing physical and biological properties at different levels of organization.Moreover, proponents argue that the emerging concept will revolutionize research in evolutionary biology and our understanding of adaptation. While selection and the other canonical evolutionary factors undoubtedly play a role in producing the many adaptations we see today, proponents argue that evolvability explains how adaptive traits continue to arise despite the tremendous increase in organismal complexity from a strain of bacteria to a human being. Consequently, advocates argue that evolvability fills a significant explanatory gap in evolutionary theorizing. However, as the literature on this new posit has grown, evolvability has only become more opaque, with little consensus on what it is, what it is supposed to explain, and consequently, what the bearers of-and contributors to-evolvability are.In my dissertation, Understanding Evolvability, I seek to answer these questions concerning evolvability's explanatory and ontological status. Ultimately, I argue that, like selection and drift, evolvability is a cause of evolution. To develop this account, I begin by outlining the conceptual disagreements about evolvability in Chapter 1. While there is near consensus that evolvability is a kind of disposition, the nature of the disposition and its physical bases are highly disputed. This has led some philosophers of biology to embrace a pluralist account of evolvability. I argue that there are limitations to this view and motivate the need for a unified account of evolvability.In Chapter 2, I outline the nearer and more distant origins of evolvability research and two unearth two candidates for developing a unified account of evolvability. I defend the evolvability concept with the narrower scope as being the more promising candidate. I defend this view based on the extent each candidate: satisfies the historical motivations for researching evolvability, captures the nature of potentiality associated with evolvability, and yields a projectible account of evolvability.In Chapter 3, I develop an extended analogy I explore an extended analogy between treating evolvability as a dispositional property of populations and the propensity interpretation of fitness (PIF). According to PIF, fitness is a property that describes how probable it is that an organism will produce no offspring, one offspring, etc., given the environment it lives in and its traits. PIF has significant explanatory virtues and resolves challenges with earlier definitions of fitness, but it also faces new ones. I argue that the motivations for adopting PIF, as well as the contemporary challenges it faces, provide insight for constructing a view of evolvability akin to PIF. There are benefits that come with thinking about evolvability in this way. By putting evolvability on the same footing as fitness, we can better answer the challenge I outlined above: Should evolvability be considered a central explanatory concept-like fitness-in evolutionary theory? Further, this analogy goes both ways: developing this account of evolvability can also shed light on the contemporary debates about fitness.In Chapter 4, co-authored with Pierrick Bourrat and Cristina Villegas and reproduced with permission from Springer Nature, I consider whether evolvability is better captured within Pence and Ramsey's new foundation, a conception of PIF which describes fitness as a probability distribution that encompasses all possible lineages the organism may give rise to, including how the organism's traits might change and all possible environments the organism might encounter. This long-term definition of fitness is general enough to avoid counterexamples that other mathematical conceptions face. However, there seem to be downsides to generality: the ecological role of fitness involves describing the degree of adaptedness between an organism and the specific environment it inhabits. When all possible changes in traits and all possible environments are included in the concept, it becomes hard to see how fitness can fulfill this role. We argue that this is a feature of this view of fitness, rather than a bug: long-term fitness accommodates evolvability considerations, which concern the role that variation plays in evolutionary processes and provides a more accurate accounting of long-term evolutionary success.In Chapter 5, co-authored with Hayley Clatterbuck, we consider whether evolvability can be suitably captured within the framework of forces. According to Sober's (1984) force model of evolution, evolutionary factors (e.g., selection and drift) are analogous to forces in Newtonian mechanics. Some biologists and philosophers have recently proposed a new evolutionary factor: evolvability. We consider whether evolvability ought to be seen as an evolutionary force, arguing that evolvability satisfies the key criteria for force-hood: it is a cause, has magnitude and direction, is distinct from other forces of evolution, combines with other forces, and unifies biological theorizing. However, the concept of evolvability is in flux. We conclude that if evolvability theorists want it to resemble canonical evolutionary forces, there are features a settled account of evolvability should emphasize.
- 일반주제명
- Philosophy
- 일반주제명
- Biology
- 일반주제명
- Evolution & development
- 키워드
- Causation
- 키워드
- Disposition
- 키워드
- Evolvability
- 키워드
- Force
- 기타저자
- The University of Wisconsin - Madison Philosophy
- 기본자료저록
- Dissertations Abstracts International. 86-02B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■020 ▼a9798384025771
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■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a100
■1001 ▼aDeaven, Katherine Janina.
■24510▼aUnderstanding Evolvability
■260 ▼a[Sl]▼bThe University of Wisconsin - Madison▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a165 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-02, Section: B.
■500 ▼aAdvisor: Sober, Elliott;Clatterbuck, Hayley.
■5021 ▼aThesis (Ph.D.)--The University of Wisconsin - Madison, 2024.
■520 ▼aOver the past thirty years, evolvability has garnered significant interest in evolutionary biology and the philosophy of biology. Broadly defined, evolvability pertains to the evolutionary options available to a given biological entity at a particular time. Champions of the emerging concept maintain that it holds considerable explanatory promise, shedding light on differences in evolutionary outcomes across the Tree of Life and the complex network of factors that influence the amount, bias in direction, and kind of phenotypic variation that could arise within a given population. In doing so, evolvability unifies many seemingly disparate and perplexing physical and biological properties at different levels of organization.Moreover, proponents argue that the emerging concept will revolutionize research in evolutionary biology and our understanding of adaptation. While selection and the other canonical evolutionary factors undoubtedly play a role in producing the many adaptations we see today, proponents argue that evolvability explains how adaptive traits continue to arise despite the tremendous increase in organismal complexity from a strain of bacteria to a human being. Consequently, advocates argue that evolvability fills a significant explanatory gap in evolutionary theorizing. However, as the literature on this new posit has grown, evolvability has only become more opaque, with little consensus on what it is, what it is supposed to explain, and consequently, what the bearers of-and contributors to-evolvability are.In my dissertation, Understanding Evolvability, I seek to answer these questions concerning evolvability's explanatory and ontological status. Ultimately, I argue that, like selection and drift, evolvability is a cause of evolution. To develop this account, I begin by outlining the conceptual disagreements about evolvability in Chapter 1. While there is near consensus that evolvability is a kind of disposition, the nature of the disposition and its physical bases are highly disputed. This has led some philosophers of biology to embrace a pluralist account of evolvability. I argue that there are limitations to this view and motivate the need for a unified account of evolvability.In Chapter 2, I outline the nearer and more distant origins of evolvability research and two unearth two candidates for developing a unified account of evolvability. I defend the evolvability concept with the narrower scope as being the more promising candidate. I defend this view based on the extent each candidate: satisfies the historical motivations for researching evolvability, captures the nature of potentiality associated with evolvability, and yields a projectible account of evolvability.In Chapter 3, I develop an extended analogy I explore an extended analogy between treating evolvability as a dispositional property of populations and the propensity interpretation of fitness (PIF). According to PIF, fitness is a property that describes how probable it is that an organism will produce no offspring, one offspring, etc., given the environment it lives in and its traits. PIF has significant explanatory virtues and resolves challenges with earlier definitions of fitness, but it also faces new ones. I argue that the motivations for adopting PIF, as well as the contemporary challenges it faces, provide insight for constructing a view of evolvability akin to PIF. There are benefits that come with thinking about evolvability in this way. By putting evolvability on the same footing as fitness, we can better answer the challenge I outlined above: Should evolvability be considered a central explanatory concept-like fitness-in evolutionary theory? Further, this analogy goes both ways: developing this account of evolvability can also shed light on the contemporary debates about fitness.In Chapter 4, co-authored with Pierrick Bourrat and Cristina Villegas and reproduced with permission from Springer Nature, I consider whether evolvability is better captured within Pence and Ramsey's new foundation, a conception of PIF which describes fitness as a probability distribution that encompasses all possible lineages the organism may give rise to, including how the organism's traits might change and all possible environments the organism might encounter. This long-term definition of fitness is general enough to avoid counterexamples that other mathematical conceptions face. However, there seem to be downsides to generality: the ecological role of fitness involves describing the degree of adaptedness between an organism and the specific environment it inhabits. When all possible changes in traits and all possible environments are included in the concept, it becomes hard to see how fitness can fulfill this role. We argue that this is a feature of this view of fitness, rather than a bug: long-term fitness accommodates evolvability considerations, which concern the role that variation plays in evolutionary processes and provides a more accurate accounting of long-term evolutionary success.In Chapter 5, co-authored with Hayley Clatterbuck, we consider whether evolvability can be suitably captured within the framework of forces. According to Sober's (1984) force model of evolution, evolutionary factors (e.g., selection and drift) are analogous to forces in Newtonian mechanics. Some biologists and philosophers have recently proposed a new evolutionary factor: evolvability. We consider whether evolvability ought to be seen as an evolutionary force, arguing that evolvability satisfies the key criteria for force-hood: it is a cause, has magnitude and direction, is distinct from other forces of evolution, combines with other forces, and unifies biological theorizing. However, the concept of evolvability is in flux. We conclude that if evolvability theorists want it to resemble canonical evolutionary forces, there are features a settled account of evolvability should emphasize.
■590 ▼aSchool code: 0262.
■650 4▼aPhilosophy
■650 4▼aBiology
■650 4▼aEvolution & development
■653 ▼aCausation
■653 ▼aDisposition
■653 ▼aEvolvability
■653 ▼aForce
■653 ▼aEvolutionary biology
■653 ▼aPropensity interpretation of fitness
■690 ▼a0422
■690 ▼a0412
■690 ▼a0306
■71020▼aThe University of Wisconsin - Madison▼bPhilosophy.
■7730 ▼tDissertations Abstracts International▼g86-02B.
■790 ▼a0262
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17164001▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


