DOI: 10.1016/j.scitotenv.2019.134598
论文题名: Range-extending coral reef fishes trade-off growth for maintenance of body condition in cooler waters
作者: Kingsbury K.M. ; Gillanders B.M. ; Booth D.J. ; Coni E.O.C. ; Nagelkerken I.
刊名: Science of the Total Environment
ISSN: 489697
出版年: 2020
卷: 703 语种: 英语
英文关键词: Feeding performance
; Growth
; Ocean warming
; Range shifts
; Reef fishes
; Trade-offs
Scopus关键词: Cooling systems
; Ecosystems
; Feeding
; Fish
; Global warming
; Growth (materials)
; Metabolism
; Oceanography
; Reefs
; Temperature
; Tropics
; Competitive interactions
; Environmental conditions
; Latitudinal gradients
; Ocean warming
; RANGE shifts
; Reef fishes
; Trade off
; Tropical species
; Economic and social effects
; climate change
; climate effect
; coral reef
; feeding behavior
; fitness
; growth response
; temperature effect
; trade-off
; warming
; article
; body constitution
; body growth
; climate change
; coral reef
; feeding
; fish
; greenhouse effect
; growth rate
; latitude
; metabolic rate
; nonhuman
; sea
; stomach
; water temperature
; Anthozoa
; Pisces
英文摘要: As ocean waters warm due to climate change, tropical species are shifting their ranges poleward to remain within their preferred thermal niches. As a result, novel communities are emerging in which tropical species interact with local temperate species, competing for similar resources, such as food and habitat. To understand how range-extending coral reef fish species perform along their leading edges when invading temperate ecosystems, we studied proxies of their fitness, including somatic growth (length increase), feeding rates, and body condition, along a 730-km latitudinal gradient situated in one of the global warming hotspots. We also studied co-occurring temperate species to assess how their fitness is affected along their trailing edges under ocean warming. We predicted that tropical fishes would experience reduced performance as they enter novel communities with suboptimal environmental conditions. Our study shows that although tropical fish maintain their body condition (based on three proxies) and stomach fullness across all invaded temperate latitudes, they exhibit decreased in situ growth rates, activity levels, and feeding rates in their novel temperate environment, likely a result of lower metabolic rates in cooler waters. We posit that tropical fishes face a growth–maintenance trade-off under the initial phases of ocean warming (i.e. at their leading edges), allowing them to maintain their body condition in cooler temperate waters but at the cost of slower growth. Temperate fish exhibited no distinct patterns in body condition and performance along the natural temperature gradient studied. However, in the face of future climate change, when metabolism is no longer stymied by low water temperatures, tropical range-extending species are likely to approach their native-range growth rates along their leading edges, ultimately leading to increased competitive interactions with local species in temperate ecosystems. © 2019 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159315
Appears in Collections: 气候变化与战略
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作者单位: Southern Seas Ecology Laboratories, School of Biological Sciences, The Environment Institute, The University of Adelaide, Adelaide, SA 5005, Australia; Fish Ecology Lab, School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia
Recommended Citation:
Kingsbury K.M.,Gillanders B.M.,Booth D.J.,et al. Range-extending coral reef fishes trade-off growth for maintenance of body condition in cooler waters[J]. Science of the Total Environment,2020-01-01,703