DOI: 10.1111/gcb.12698
论文题名: The dynamics of architectural complexity on coral reefs under climate change
作者: Bozec Y.-M. ; Alvarez-Filip L. ; Mumby P.J.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2015
卷: 21, 期: 1 起始页码: 223
结束页码: 235
语种: 英语
英文关键词: Bleaching and hurricanes
; Habitat loss
; Hindcast and forecast simulation
; Mechanical stress
; Parrotfish erosion
; Structural complexity
Scopus关键词: Anthozoa
; Scaridae
; animal
; Anthozoa
; biological model
; Caribbean
; climate change
; computer simulation
; coral reef
; ecosystem
; feeding behavior
; growth, development and aging
; hurricane
; Perciformes
; physiology
; population dynamics
; species difference
; temperature
; Animals
; Anthozoa
; Caribbean Region
; Climate Change
; Computer Simulation
; Coral Reefs
; Cyclonic Storms
; Ecosystem
; Feeding Behavior
; Models, Biological
; Perciformes
; Population Dynamics
; Species Specificity
; Temperature
英文摘要: One striking feature of coral reef ecosystems is the complex benthic architecture which supports diverse and abundant fauna, particularly of reef fish. Reef-building corals are in decline worldwide, with a corresponding loss of live coral cover resulting in a loss of architectural complexity. Understanding the dynamics of the reef architecture is therefore important to envision the ability of corals to maintain functional habitats in an era of climate change. Here, we develop a mechanistic model of reef topographical complexity for contemporary Caribbean reefs. The model describes the dynamics of corals and other benthic taxa under climate-driven disturbances (hurricanes and coral bleaching). Corals have a simplified shape with explicit diameter and height, allowing species-specific calculation of their colony surface and volume. Growth and the mechanical (hurricanes) and biological erosion (parrotfish) of carbonate skeletons are important in driving the pace of extension/reduction in the upper reef surface, the net outcome being quantified by a simple surface roughness index (reef rugosity). The model accurately simulated the decadal changes of coral cover observed in Cozumel (Mexico) between 1984 and 2008, and provided a realistic hindcast of coral colony-scale (1-10 m) changing rugosity over the same period. We then projected future changes of Caribbean reef rugosity in response to global warming. Under severe and frequent thermal stress, the model predicted a dramatic loss of rugosity over the next two or three decades. Critically, reefs with managed parrotfish populations were able to delay the general loss of architectural complexity, as the benefits of grazing in maintaining living coral outweighed the bioerosion of dead coral skeletons. Overall, this model provides the first explicit projections of reef rugosity in a warming climate, and highlights the need of combining local (protecting and restoring high grazing) to global (mitigation of greenhouse gas emissions) interventions for the persistence of functional reef habitats. © 2014 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61842
Appears in Collections: 影响、适应和脆弱性
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作者单位: Marine Spatial Ecology Lab, School of Biological Sciences, University of Queensland, St. Lucia, QLD, Australia; College of Life Sciences, University of Exeter, Exeter, United Kingdom; Unidad Académica de Sistemas Arrecifales, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Puerto Morelos, Quintana Roo, Mexico
Recommended Citation:
Bozec Y.-M.,Alvarez-Filip L.,Mumby P.J.. The dynamics of architectural complexity on coral reefs under climate change[J]. Global Change Biology,2015-01-01,21(1)