Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.13882 |
Human activities as a driver of spatial variation in the trophic structure of fish communities on Pacific coral reefs | |
Ruppert, Jonathan L. W.1,2,3; Vigliola, Laurent1; Kulbicki, Michel4; Labrosse, Pierre5; Fortin, Marie-Josee2; Meekan, Mark G.3 | |
2018 | |
发表期刊 | GLOBAL CHANGE BIOLOGY
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ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2018 |
卷号 | 24期号:1页码:E67-E79 |
文章类型 | Article |
语种 | 英语 |
国家 | France; Canada; Australia |
英文摘要 | Anthropogenic activities such as land-use change, pollution and fishing impact the trophic structure of coral reef fishes, which can influence ecosystem health and function. Although these impacts may be ubiquitous, they are not consistent across the tropical Pacific Ocean. Using an extensive database of fish biomass sampled using underwater visual transects on coral reefs, we modelled the impact of human activities on food webs at Pacific-wide and regional (1,000s-10,000s km) scales. We found significantly lower biomass of sharks and carnivores, where there were higher densities of human populations (hereafter referred to as human activity); however, these patterns were not spatially consistent as there were significant differences in the trophic structures of fishes among biogeographic regions. Additionally, we found significant changes in the benthic structure of reef environments, notably a decline in coral cover where there was more human activity. Direct human impacts were the strongest in the upper part of the food web, where we found that in a majority of the Pacific, the biomass of reef sharks and carnivores were significantly and negatively associated with human activity. Finally, although human-induced stressors varied in strength and significance throughout the coral reef food web across the Pacific, socioeconomic variables explained more variation in reef fish trophic structure than habitat variables in a majority of the biogeographic regions. Notably, economic development (measured as GDP per capita) did not guarantee healthy reef ecosystems (high coral cover and greater fish biomass). Our results indicate that human activities are significantly shaping patterns of trophic structure of reef fishes in a spatially nonuniform manner across the Pacific Ocean, by altering processes that organize communities in both "top-down" (fishing of predators) and "bottomup" (degradation of benthic communities) contexts. |
英文关键词 | biogeography habitat multiscale analysis socioeconomic spatial food webs structural equation models |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000426506100006 |
WOS关键词 | MARINE RESERVES ; HABITAT ; MANGROVES ; ABUNDANCE ; CONSERVATION ; PERFORMANCE ; DISTURBANCE ; SHARKS |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/17607 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.IRD, Lab Excellence LABEX CORAIL, UMR 250, ENTROPIE, Noumea, France; 2.Univ Toronto, Dept Ecol & Evolutionary Biol, Toronto, ON, Canada; 3.UWA Oceans Inst M096, Australian Inst Marine Sci, Crawley, WA, Australia; 4.IRD, Lab Excellence LABEX CORAIL, UMR 250, ENTROPIE, Perpignan, France; 5.Haut Commissariat Republ Nouvelle Caledonie, Noumea, France |
推荐引用方式 GB/T 7714 | Ruppert, Jonathan L. W.,Vigliola, Laurent,Kulbicki, Michel,et al. Human activities as a driver of spatial variation in the trophic structure of fish communities on Pacific coral reefs[J]. GLOBAL CHANGE BIOLOGY,2018,24(1):E67-E79. |
APA | Ruppert, Jonathan L. W.,Vigliola, Laurent,Kulbicki, Michel,Labrosse, Pierre,Fortin, Marie-Josee,&Meekan, Mark G..(2018).Human activities as a driver of spatial variation in the trophic structure of fish communities on Pacific coral reefs.GLOBAL CHANGE BIOLOGY,24(1),E67-E79. |
MLA | Ruppert, Jonathan L. W.,et al."Human activities as a driver of spatial variation in the trophic structure of fish communities on Pacific coral reefs".GLOBAL CHANGE BIOLOGY 24.1(2018):E67-E79. |
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