globalchange  > 全球变化的国际研究计划
DOI: 10.1111/1365-2656.13056
WOS记录号: WOS:000479413100001
论文题名:
Prevalence of pelagic dependence among coral reef predators across an atoll seascape
作者: Skinner, Christina1; Newman, Steven P.1,2; Mill, Aileen C.1; Newton, Jason3; Polunin, Nicholas V. C.1
通讯作者: Skinner, Christina
刊名: JOURNAL OF ANIMAL ECOLOGY
ISSN: 0021-8790
EISSN: 1365-2656
出版年: 2019
语种: 英语
英文关键词: climate change ; connectivity ; foraging ; plankton ; stable isotopes ; trophic ecology ; trophodynamics
WOS关键词: ISOTOPE MIXING MODELS ; CARNIVOROUS FISHES ; TROPHIC ECOLOGY ; STABLE-ISOTOPES ; INDIAN-OCEAN ; NITROGEN ; DELTA-N-15 ; DYNAMICS ; PATTERNS ; RATIOS
WOS学科分类: Ecology ; Zoology
WOS研究方向: Environmental Sciences & Ecology ; Zoology
英文摘要:

1Coral reef food webs are complex, vary spatially and remain poorly understood. Certain large predators, notably sharks, are subsidized by pelagic production on outer reef slopes, but how widespread this dependence is across all teleost fishery target species and within atolls is unclear. North Male Atoll (Maldives) includes oceanic barrier as well as lagoonal reefs. Nine fishery target predators constituting ca. 55% of the local fishery target species biomass at assumed trophic levels 3-5 were selected for analysis. Data were derived from carbon (delta C-13), nitrogen (delta N-15) and sulphur (delta S-34) stable isotopes from predator white dorsal muscle samples, and primary consumer species representing production source end-members. Three-source Bayesian stable isotope mixing models showed that uptake of pelagic production extends throughout the atoll, with predatory fishes showing equal planktonic reliance between inner and outer edge reefs. Median plankton contribution was 65%-80% for all groupers and 68%-88% for an emperor, a jack and snappers. Lagoonal and atoll edge predators are equally at risk from anthropogenic and climate-induced changes, which may impact the linkages they construct, highlighting the need for management plans that transcend the boundaries of this threatened ecosystem.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/143762
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作者单位: 1.Newcastle Univ, Sch Nat & Environm Sci, Newcastle Upon Tyne, Tyne & Wear, England
2.Banyan Tree Marine Lab, Vabbinfaru, Maldives
3.Scottish Univ Environm Res Ctr, NERC Life Sci Mass Spectrometry Facil, E Kilbride, Lanark, Scotland

Recommended Citation:
Skinner, Christina,Newman, Steven P.,Mill, Aileen C.,et al. Prevalence of pelagic dependence among coral reef predators across an atoll seascape[J]. JOURNAL OF ANIMAL ECOLOGY,2019-01-01
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