인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Marine environments are experiencing rapid warming, substantially altering ecosystems. Populations at the edge of a species' range are more vulnerable to environmental change as they are first affected and may have limited dispersal opportunities. This vulnerability may be exacerbated in species with specialised foraging and breeding strategies. The Australian sea lion (<i>Neophoca cinerea</i>) is an endangered otariid species that breeds across a ~3000 km range in southern Australia. At the most north-westerly edge of the species' distribution, Australian sea lions breed across multiple islands within the Houtman Abrolhos Archipelago, Western Australia, a tropical-temperate location affected by marine heatwaves. This study aimed to examine the genetic structure and diversity of the Australian sea lions from the Houtman Abrolhos Archipelago compared to other populations in the species' range. One hundred and twenty-five individuals, 19 from Houtman Abrolhos, were genotyped from 19 sample sites across Western Australia and South Australia. Our findings showed that individuals from the Houtman Abrolhos grouped into a single population, which was highly differentiated and had extremely low genetic diversity. The isolation and limited genetic variation of the Houtman Abrolhos Australian sea lion population suggest that it is extremely vulnerable to extirpation. Our study highlights the vulnerability of isolated populations of a species to rapid environmental change and stochastic events.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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