Cold comfort: Arctic seabirds find refugia from climate change and potential competition in marginal ice zones and fjords.
Cold comfort: Arctic seabirds find refugia from climate change and potential competition in marginal ice zones and fjords.
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DOI：
10.1007/s13280-021-01650-7
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发表时间：
2022-03
期刊：
影响因子：
6.5
通讯作者：
Ratcliffe N
中科院分区：
文献类型：
--
作者：
Bonnet-Lebrun AS;Larsen T;Thórarinsson TL;Kolbeinsson Y;Frederiksen M;Morley TI;Fox D;Boutet A;le Bouard F;Deville T;Hansen ES;Hansen T;Roberts P;Ratcliffe N
气候变化改变了物种的分布，改变了它们在空间中的基本生态位。如果在竞争者活动范围重叠的地方，气候改变物种的优势，种间竞争的增加可能会加剧这种影响。这项研究使用普查数据，遥测和稳定同位素，以检查人口和觅食生态的一对北极和温带同源物在冰岛的一个广泛的同域区，那里的海水温度变化很大。北极Brünnich的海鸠Uria lomvia的丰度随海水温度下降。冷水流或峡湾中的避难所的可达性有助于支持更高的数量并降低人口下降率。与温带普通海鸠Uria aalge的竞争并没有影响丰富，但觅食生态的相似性足以引起竞争时，资源是有限的。持续变暖可能导致布吕尼希海鸠的数量进一步下降，对保护状况和生态系统服务产生影响。在线版本包含补充材料，可通过10.1007/s13280-021-01650-7获得。
Climate change alters species distributions by shifting their fundamental niche in space through time. Such effects may be exacerbated by increased inter-specific competition if climate alters species dominance where competitor ranges overlap. This study used census data, telemetry and stable isotopes to examine the population and foraging ecology of a pair of Arctic and temperate congeners across an extensive zone of sympatry in Iceland, where sea temperatures varied substantially. The abundance of Arctic Brünnich’s guillemot Uria lomvia declined with sea temperature. Accessibility of refugia in cold water currents or fjords helped support higher numbers and reduce rates of population decline. Competition with temperate Common guillemots Uria aalge did not affect abundance, but similarities in foraging ecology were sufficient to cause competition when resources are limiting. Continued warming is likely to lead to further declines of Brünnich’s guillemot, with implications for conservation status and ecosystem services. The online version contains supplementary material available at 10.1007/s13280-021-01650-7.
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影响因子：
30.7
作者：
Fossheim, Maria;Primicerio, Raul;Dolgov, Andrey V.
通讯作者：
Dolgov, Andrey V.
影响因子：
2.7
作者：
Durant, J. M.;Krasnov, Y. V.;Stenseth, N. C.
通讯作者：
Stenseth, N. C.
DOI：
10.1016/j.dsr2.2007.07.030
发表时间：
2007-01-01
影响因子：
3
作者：
Astthorsson, Olafur S.;Gislason, Astthor;Jonsson, Steingrimur
通讯作者：
Jonsson, Steingrimur
DOI：
10.1139/z97-077
发表时间：
1997-04-01
期刊：
CANADIAN JOURNAL OF ZOOLOGY-REVUE CANADIENNE DE ZOOLOGIE
影响因子：
--
作者：
Barrett, RT;Asheim, M;Bakken, V
通讯作者：
Bakken, V
影响因子：
2.7
作者：
Descamps, Sebastien;Strom, Hallvard;Steen, Harald
通讯作者：
Steen, Harald