DOI: 10.3354/cr01332
Scopus记录号: 2-s2.0-84946059051
论文题名: Effects of sea temperature and stratification changes on seabird breeding success
作者: Carroll M.J. ; Butler A. ; Owen E. ; Ewing S.R. ; Cole T. ; Green J.A. ; Soanes L.M. ; Arnould J.P.Y. ; Newton S.F. ; Baer J. ; Daunt F. ; Wanless S. ; Newell M.A. ; Robertson G.S. ; Mavor R.A. ; Bolton M.
刊名: Climate Research
ISSN: 0936577X
出版年: 2015
卷: 66, 期: 1 起始页码: 75
结束页码: 89
语种: 英语
英文关键词: Black-legged kittiwake
; Oceanography
; Potential energy anomaly
; Productivity
; Rissa tridactyla
; SST
; Tracking data
Scopus关键词: breeding season
; climate change
; food web
; marine ecosystem
; population decline
; reproductive behavior
; reproductive success
; sea surface temperature
; seabird
; spatial variation
; stratification
; Ireland
; United Kingdom
; Larus
; Rissa
; Rissa tridactyla
英文摘要: As apex predators in marine ecosystems, seabirds may primarily experience climate change impacts indirectly, via changes to their food webs. Observed seabird population declines have been linked to climate-driven oceanographic and food web changes. However, relationships have often been derived from relatively few colonies and consider only sea surface temperature (SST), so important drivers, and spatial variation in drivers, could remain undetected. Further, ex - plicit climate change projections have rarely been made, so longer-term risks remain unclear. Here, we use tracking data to estimate foraging areas for 11 black-legged kittiwake Rissa tridac - ty la colonies in the UK and Ireland, thus reducing reliance on single colonies and allowing calculation of colony-specific oceanographic conditions. We use mixed models to consider how SST, the potential energy anomaly (indicating density stratification strength) and the timing of seasonal stratification influence kittiwake productivity. Across all colonies, higher breeding success was associated with weaker stratification before breeding and lower SSTs during the breeding season. Eight colonies with sufficient data were modelled individually: higher productivity was associated with later stratification at 3 colonies, weaker stratification at 2, and lower SSTs at one, whilst 2 colonies showed no significant relationships. Hence, key drivers of productivity varied among colonies. Climate change projections, made using fitted models, indicated that breeding success could decline by 21 to 43% between 1961-90 and 2070-99. Climate change therefore poses a longer-term threat to kittiwakes, but as this will be mediated via availability of key prey species, other marine apex predators could also face similar threats. © Inter-Research 2015. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116457
Appears in Collections: 气候减缓与适应
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Recommended Citation:
Carroll M.J.,Butler A.,Owen E.,et al. Effects of sea temperature and stratification changes on seabird breeding success[J]. Climate Research,2015-01-01,66(1)