Coral larval recruitment in north-western Australia predicted by regional and local conditions

التفاصيل البيبلوغرافية
العنوان: Coral larval recruitment in north-western Australia predicted by regional and local conditions
المؤلفون: Dirk Slawinski, Russell C. Babcock, Shaun K. Wilson, Andrew S. Hoey, Damian Thomson, Richard D. Evans, Ming Feng, Molly Moustaka, Melanie Orr
المصدر: Marine environmental research. 168
سنة النشر: 2021
مصطلحات موضوعية: 0106 biological sciences, Coral, Population, Aquatic Science, Oceanography, 010603 evolutionary biology, 01 natural sciences, Abundance (ecology), Animals, natural sciences, Marine ecosystem, education, Reef, Ecosystem, education.field_of_study, geography.geographical_feature_category, Ecology, Coral Reefs, 010604 marine biology & hydrobiology, fungi, technology, industry, and agriculture, General Medicine, Coral reef, Western Australia, biochemical phenomena, metabolism, and nutrition, Anthozoa, Pollution, Geography, Larva, Archipelago, Biological dispersal, geographic locations
الوصف: Understanding ecological processes that shape contemporary and future communities facilitates knowledge-based environmental management. In marine ecosystems, one of the most important processes is the supply of new recruits into a population. Here, we investigated spatiotemporal variability in coral recruitment at 15 reefs throughout the Dampier Archipelago, north-western Australia between 2015 and 2017 and identified the best environmental predictors for coral recruitment patterns over this period. Large differences in recruitment were observed among years with the average density of recruits increasing by 375% from 0.017 recruits cm−2 in 2015 to 0.059 recruits cm−2 in 2017. Despite differences in recruitment among years, the rank order of coral recruit density among reefs remained similar among years, suggesting that spatial variation in recruitment within the Dampier Archipelago is partly deterministic and predictable. The density of coral recruits was best explained by percent cover of live corals at both local (within 5 m) and meso-scales (within 15 km), water turbidity and an oceanographic model that predicted larval dispersal. The highest density of coral recruits (~0.13 recruits cm−2 or 37 recruits per tile) occurred on reefs within sub-regions (15 km) with greater than 35% coral cover, low to moderate turbidity (KD490 < 0.2) and moderate to high modelled predictions of larval dispersal. Our results demonstrate that broad-scale larval dispersal models, when combined with local metrics of percent hard coral cover and water turbidity, can reliably predict the relative abundance of coral recruits over large geographical areas and thus can identify hotspots of recruit abundance and potential recovery following environmental disturbances; information that is essential for effective management of coral reefs.
تدمد: 1879-0291
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb7abc853322bcc765fca87c7ffe8762
https://pubmed.ncbi.nlm.nih.gov/33853011
Rights: OPEN
رقم الانضمام: edsair.doi.dedup.....eb7abc853322bcc765fca87c7ffe8762
قاعدة البيانات: OpenAIRE