인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
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
ABSTRACT Aim Identify biogeographic boundaries that delineate the distribution of species assemblages along global non‐insular coastlines, characterise the potential barriers responsible for biogeographic boundaries and realign coastal biogeographic provinces. Location Global. Time Period Not applied. Major Taxa Studied Animalia. Methods Global databases of marine animals were used to define biogeographic boundaries as regions that concentrate species range limits. To mitigate sampling bias inherent in uneven presence records in biodiversity databases, we applied a resampling methodology. We used the identified dispersal barriers to divide the study area into ecoregions in order to realign coastal biogeographic provinces. These ecoregions were then clustered into biogeographic provinces based on the similarity of their biodiversity. Results We identified 24 biogeographic boundaries along the coastlines of the Americas and 27 along Afro‐Eurasia. The 52 ecoregions delimited by the biogeographic boundaries were classified into 23 biogeographic provinces. In most cases, the proportion of exclusive species within each province was higher than 25%. When comparing the proportion of exclusive species to the previous classifications of biogeographic provinces, a higher proportion was found. Of the 21 boundaries of the new biogeographic provinces, nine are aligned with and six are close to previous boundaries between the biogeographic provinces or realms defined in previous studies. Our analysis revealed the presence of 6 additional subdivisions and significant realignments within the marine biogeographic provinces. Main Conclusions The objective data‐driven approach was effective to identify biogeographic boundaries and realign biogeographic provinces. Most boundaries were associated with strong thermohaline gradients, which typically occur along water‐mass fronts due to converging currents, upwelling or river discharge. Such processes, in conjunction with geomorphology and circulation patterns, interact to restrict the dispersal of marine organisms by restricting movement and filtering species according to their ecological niches.
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.