Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.13997 |
Differential adult survival at close seabird colonies: The importance of spatial foraging segregation and bycatch risk during the breeding season | |
Genovart, Meritxell1,2; Becares, Juan3; Igual, Jose-Manuel1; Martinez-Abrain, Alejandro4; Escandell, Raul5; Sanchez, Antonio6; Rodriguez, Beneharo3,7; Arcos, Jose M.3; Oro, Daniel1,2 | |
2018-03-01 | |
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:3页码:1279-1290 |
文章类型 | Article |
语种 | 英语 |
国家 | Spain |
英文摘要 | Marine megafauna, including seabirds, are critically affected by fisheries bycatch. However, bycatch risk may differ on temporal and spatial scales due to the uneven distribution and effort of fleets operating different fishing gear, and to focal species distribution and foraging behavior. Scopoli's shearwater Calonectris diomedea is a long-lived seabird that experiences high bycatch rates in longline fisheries and strong population-level impacts due to this type of anthropogenic mortality. Analyzing a long-term dataset on individual monitoring, we compared adult survival (by means of multi-event capture-recapture models) among three close predator-free Mediterranean colonies of the species. Unexpectedly for a long-lived organism, adult survival varied among colonies. We explored potential causes of this differential survival by (1) measuring egg volume as a proxy of food availability and parental condition; (2) building a specific longline bycatch risk map for the species; and (3) assessing the distribution patterns of breeding birds from the three study colonies via GPS tracking. Egg volume was very similar between colonies over time, suggesting that environmental variability related to habitat foraging suitability was not the main cause of differential survival. On the other hand, differences in foraging movements among individuals from the three colonies expose them to differential mortality risk, which likely influenced the observed differences in adult survival. The overlap of information obtained by the generation of specific bycatch risk maps, the quantification of population demographic parameters, and the foraging spatial analysis should inform managers about differential sensitivity to the anthropogenic impact at mesoscale level and guide decisions depending on the spatial configuration of local populations. The approach would apply and should be considered in any species where foraging distribution is colony-specific and mortality risk varies spatially. |
英文关键词 | adult survival Calonectris diomedea capture-recapture climatic index demography fisheries bycatch Mediterranean remote tracking risk map |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000425396700034 |
WOS关键词 | NORTH-ATLANTIC OSCILLATION ; LONG-LIVED SEABIRD ; POPULATION-DYNAMICS ; ENVIRONMENTAL VARIABILITY ; STRUCTURED POPULATIONS ; WANDERING ALBATROSS ; MIGRATORY SEABIRD ; FISHERIES BYCATCH ; RECAPTURE DATA ; WIND FARMS |
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/17849 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.IMEDEA CSIC UIB, Esporles, Mallorca, Spain; 2.CSIC, CEAB, Acces Cala St Francesc, Girona, Catalonia, Spain; 3.SEO BirdLife Marine Programme, Delegacio Catalunya, Barcelona, Spain; 4.Univ A Coruna, Dept Biol, Grp Invest Biol Evolut, La Coruna, Spain; 5.SOM, Es Castell, Menorca, Spain; 6.Ayuntamiento Valencia, Oficina Tecn Devesa Albufera, Valencia, Spain; 7.Canary Isl Ornithol & Nat Hist Grp GOHNIC, Tenerife, Canary Islands, Spain |
推荐引用方式 GB/T 7714 | Genovart, Meritxell,Becares, Juan,Igual, Jose-Manuel,et al. Differential adult survival at close seabird colonies: The importance of spatial foraging segregation and bycatch risk during the breeding season[J]. GLOBAL CHANGE BIOLOGY,2018,24(3):1279-1290. |
APA | Genovart, Meritxell.,Becares, Juan.,Igual, Jose-Manuel.,Martinez-Abrain, Alejandro.,Escandell, Raul.,...&Oro, Daniel.(2018).Differential adult survival at close seabird colonies: The importance of spatial foraging segregation and bycatch risk during the breeding season.GLOBAL CHANGE BIOLOGY,24(3),1279-1290. |
MLA | Genovart, Meritxell,et al."Differential adult survival at close seabird colonies: The importance of spatial foraging segregation and bycatch risk during the breeding season".GLOBAL CHANGE BIOLOGY 24.3(2018):1279-1290. |
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