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
Urchin herbivory is a key function in temperate reef ecosystems. Some urchin species overgraze macroalgal forests, leading to their collapse into barren states. In Australia, climate change is enabling the poleward range extension of urchin species, resulting in increased barrens formation at the cool-edge of their distribution. Despite their ecological importance and association with warming, broad-scale effects of temperature on sea-urchin feeding ecology remain unknown. We characterise in-situ feeding rates of two barrens-forming urchin species, one range-extender (Centrostephanus rodgersii), the other range-persistent (Heliocidaris erythrogramma), across a temperature range of 8 °C and 12 degrees of latitude, as well as over seasonal cycles. We assess the extent to which ecological drivers (temperature, macroalgal nutrition, urchin size/weight metrics) explain grazing patterns. We find contrasting patterns in, and drivers of, performance between urchin species. C. rodgersii shows a peak in grazing and abundance at its range-centre, and temperature is shown to be an important driver of grazing rates for this species. For H. erythrogramma, gonad index and macroalgal nutrition are key drivers of grazing rates, which display no significant change across latitude. These contrasting patterns suggest each species occupies different thermal niches, providing key insights into how their ecological impacts may change across their distribution and in response to ocean warming.
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.