气候变化领域集成服务门户(CCPortal): A connectivity portfolio effect stabilizes marine reserve performance

CCPortal

DOI	10.1073/pnas.1920580117
	A connectivity portfolio effect stabilizes marine reserve performance
	Harrison H.B.; Bode M.; Williamson D.H.; Berumen M.L.; Jones G.P.
发表日期	2020
ISSN	0027-8424
起始页码	25595
结束页码	25600
卷号	117 期号:41
英文摘要	Well-managed and enforced no-take marine reserves generate important larval subsidies to neighboring habitats and thereby contribute to the long-term sustainability of fisheries. However, larval dispersal patterns are variable, which leads to temporal fluctuations in the contribution of a single reserve to the replenishment of local populations. Identifying management strategies that mitigate the uncertainty in larval supply will help ensure the stability of recruitment dynamics and minimize the volatility in fishery catches. Here, we use genetic parentage analysis to show extreme variability in both the dispersal patterns and recruitment contribution of four individual marine reserves across six discrete recruitment cohorts for coral grouper (Plectropomus maculatus) on the Great Barrier Reef. Together, however, the asynchronous contributions from multiple reserves create temporal stability in recruitment via a connectivity portfolio effect. This dampening effect reduces the variability in larval supply from individual reserves by a factor of 1.8, which effectively halves the uncertainty in the recruitment contribution of individual reserves. Thus, not only does the network of four marine reserves generate valuable larval subsidies to neighboring habitats, the aggregate effect of individual reserves mitigates temporal fluctuations in dispersal patterns and the replenishment of local populations. Our results indicate that small networks of marine reserves yield previously unrecognized stabilizing benefits that ensure a consistent larval supply to replenish exploited fish stocks. © 2020 National Academy of Sciences. All rights reserved.
英文关键词	Connectivity; Larval dispersal; Marine reserve; Marine spatial planning; Portfolio effects
语种	英语
scopus关键词	article; clinical article; coral; fish stock; habitat; parentage analysis; uncertainty; animal; animal dispersal; aquatic species; bass; ecosystem; environmental protection; fishery; larva; physiology; Animal Distribution; Animals; Aquatic Organisms; Bass; Conservation of Natural Resources; Ecosystem; Fisheries; Larva
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160767
作者单位	Harrison, H.B., Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD 4814, Australia, Australian Institute of Marine Science, Townsville, QLD 4810, Australia; Bode, M., School of Mathematical Sciences, Queensland University of Technology, Brisbane, QLD 4001, Australia; Williamson, D.H., Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD 4814, Australia, College of Science and Engineering, James Cook University, Townsville, QLD 4814, Australia; Berumen, M.L., Red Sea Research Center, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia; Jones, G.P., Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD 4814, Australia, College of Science and Engineering, James Cook University, Townsville, QLD 4814, Australia
推荐引用方式 GB/T 7714	Harrison H.B.,Bode M.,Williamson D.H.,et al. A connectivity portfolio effect stabilizes marine reserve performance[J],2020,117(41).
APA	Harrison H.B.,Bode M.,Williamson D.H.,Berumen M.L.,&Jones G.P..(2020).A connectivity portfolio effect stabilizes marine reserve performance.Proceedings of the National Academy of Sciences of the United States of America,117(41).
MLA	Harrison H.B.,et al."A connectivity portfolio effect stabilizes marine reserve performance".Proceedings of the National Academy of Sciences of the United States of America 117.41(2020).