상세정보
Export to Refworks부가기능
Mating on the Margins: The Impacts of Social Network Structure and Climate on Gene Flow in a Hybrid Zone Between California (Callipepla Californica) and Gambel's Quail (Callipepla Gambelii)
상세 프로파일
| 자료유형 | 학위논문 |
|---|---|
| 서명/저자사항 | Mating on the Margins: The Impacts of Social Network Structure and Climate on Gene Flow in a Hybrid Zone Between California (Callipepla Californica) and Gambel's Quail (Callipepla Gambelii). |
| 개인저자 | Zonana, David Michael. |
| 단체저자명 | University of Colorado at Boulder. Ecology and Evolutionary Biology. |
| 발행사항 | [S.l.]: University of Colorado at Boulder., 2019. |
| 발행사항 | Ann Arbor: ProQuest Dissertations & Theses, 2019. |
| 형태사항 | 147 p. |
| 기본자료 저록 | Dissertations Abstracts International 81-04B. Dissertation Abstract International |
| ISBN | 9781088306376 |
| 학위논문주기 | Thesis (Ph.D.)--University of Colorado at Boulder, 2019. |
| 일반주기 |
Source: Dissertations Abstracts International, Volume: 81-04, Section: B.
Advisor: Breed, Michael D |
| 이용제한사항 | This item must not be sold to any third party vendors. |
| 요약 | Hybridization between genetically distinct lineages can shape important population processes such as local adaptation, genetic divergence, population persistence, and range expansion. Studies of hybrid zones - areas of contact and interbreeding between divergent populations - have played a key role in revealing ecological, genetic, and behavioral factors that promote or inhibit genetic exchange. Behavior can strongly influence rates and patterns of hybridization between animal taxa as individuals must identify, attract, and compete for mates prior to reproduction. Yet, few studies have examined reproductive behaviors in natural hybrid zones within the fine-scale social structure in which they naturally occur. Climate can also dictate where species overlap in sympatry, and determine the fitness of hybrid offspring. I had two primary goals: 1) to examine how traits structure social behavior and hybridization within sympatric populations, and 2) to test the effects of climate on population genetic structure at larger spatial and temporal scales. I conducted research across a hybrid zone between the California (Callipepla californica) and Gambel's (Callipepla gambelii) quail in the deserts and mountains of Southern Califonia. I used novel social network analyses on behavioral data collected from RFID tags to test how phenotype and genotype influence social behavior and reproduction in a hybrid quail population. I found that mating opportunities were strongly influenced by assortment of birds based upon phenotype, but that behavioral reproductive isolation was weak within sympatry. Hybridization between species was influenced by behavioral assortment based upon a complex mix of traits, avoidance of interbreeding with kin, and temporal shifts in social structure of breeding populations over time. I compared contemporary genomic data with historic estimates of admixture to test how the position of the hybrid zone has changed over an abnormally hot and dry two-decade period. Recent changes in climatic conditions strongly predicted an observed downhill movement of the hybrid zone, and this movement may be facilitated by adaptive introgression. My research presents novel analytical approaches and contributes towards goals of quantifying the relative contributions of different reproductive barriers within hybrid zones. |
| 일반주제명 | Evolution & development. Ecology. |
| 언어 | 영어 |
| 바로가기 | 
: 이 자료의 원문은 한국교육학술정보원에서 제공합니다. |
