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 heatwaves (MHWs) are among the most important threats to forest-forming seaweeds and the ecological functions and services they underpin. Responses of seaweeds to MHWs are likely to vary across life-stages, along their distribution and among populations with differing genetic structure. The effects of MHWs on early life-stages and genetically distinct populations have rarely been tested experimentally. We used germlings and juveniles of the forest-forming fucoid <i>Phyllospora comosa</i> from four genetically distinct populations, two at the warm-edge (31° S) and two at the centre of its latitudinal distribution (34° S) in eastern Australia to examine their responses (i.e., survival, growth, photosynthetic efficiency, condition) to MHWs. Two MHW scenarios were tested: strong (23°C-23.5°C) and extreme (26°C), which would occur ~100 days and ~50 days per year, respectively, by 2100 under the RCP4.5 scenario (SSP2-4.5). Survival under the extreme MHW was generally low for all populations and life-stages (< 20% for juveniles; 20%-30% for germlings). The extreme MHW also negatively affected growth, photosynthesis and condition (e.g., loss of structural integrity in juveniles) over time. In contrast, responses of germlings and juveniles to the strong MHW did not differ from the control for either population. However, germlings from the warm-edge population grew longer under the extreme and strong MHWs than those from the central population. Our results indicate only minor differences in responses to MHWs between genetically distinct populations of <i>Phyllospora</i>. While some <i>Phyllospora</i> individuals within each population appear able to resist strong MHWs, they are likely to be significantly affected by extreme MHWs that will be more common in the future. Given observed variation in responses among individuals within populations, finding, selecting, breeding and introducing resistant individuals (i.e., survivors to the extreme MHW) may allow increasing the resilience of <i>Phyllospora</i> forests into the future.
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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