Macroepibenthic communities at the tip of the Antarctic Peninsula, an ecological survey at different spatial scales
Macroepibenthic communities at the tip of the Antarctic Peninsula, an ecological survey at different spatial scales
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南极半岛顶端的大型表栖生物群落，不同空间尺度的生态调查
DOI：
10.1007/s00300-015-1797-6
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发表时间：
2016
期刊：
影响因子：
1.7
通讯作者：
Teixidó N.
中科院分区：
文献类型：
--
作者：
Gutt J;Alvaro M. C;Barco A;Böhmer A;Bracher A;David B;De Ridder;Dorschel B;Eléaume M;Janussen D;Kersken D;López-González P. J. Martínez-Baraldés I;Schröder M;Segelken-Voigt A. ;Teixidó N.
南极半岛的南大洋生态系统具有陡峭的自然环境梯度，例如在水团和冰盖方面，并经历了高于全球平均水平的区域气候变化。在威德尔海西北部、南极半岛布兰斯菲尔德海峡大陆架和德雷克海峡南设得兰群岛大陆架的三个生态区进行了大型底栖生态调查，这些生态区由其环境包络线界定。其目的是改善迄今为止对南大洋生态系统这一组成部分的结构及其生态驱动力缺乏了解的情况。它还可以提供一个基线，以评估持续的气候变化对底栖生物多样性、功能和生态系统服务的影响。不同的中等规模的地形特征，如峡谷系统，包括相应的地形定义的栖息地“银行”，“上坡”，“斜坡”和“峡谷/深”进行了采样。此外，还分析了海冰覆盖、叶绿素a浓度、小尺度海底地形和水团等物理和生物环境因素。阿加西拖网渔获量表现出较高的96个更高的系统组，包括生态关键类群的生物量的波动。大规模的模式分离的三个生态区彼此可以与两个环境因素，海冰和深度。将其归因于生境只能很好地解释底栖生物的组成，而小规模的海底地形根本不能解释这种模式。海冰和深度等大尺度因素可能造成大洋底栖生物耦合的大尺度差异，而小尺度的变异性也影响到较大尺度，似乎主要是由未知的物理驱动因素或生物相互作用驱动的。
The Southern Ocean ecosystem at the Antarctic Peninsula has steep natural environmental gradients, e.g. in terms of water masses and ice cover, and experiences regional above global average climate change. An ecological macroepibenthic survey was conducted in three ecoregions in the north-western Weddell Sea, on the continental shelf of the Antarctic Peninsula in the Bransfield Strait and on the shelf of the South Shetland Islands in the Drake Passage, defined by their environmental envelop. The aim was to improve the so far poor knowledge of the structure of this component of the Southern Ocean ecosystem and its ecological driving forces. It can also provide a baseline to assess the impact of ongoing climate change to the benthic diversity, functioning and ecosystem services. Different intermediate-scaled topographic features such as canyon systems including the corresponding topographically defined habitats ‘bank’, ‘upper slope’, ‘slope’ and ‘canyon/deep’ were sampled. In addition, the physical and biological environmental factors such as sea-ice cover, chlorophyll-a concentration, small-scale bottom topography and water masses were analysed. Catches by Agassiz trawl showed high among-station variability in biomass of 96 higher systematic groups including ecological key taxa. Large-scale patterns separating the three ecoregions from each other could be correlated with the two environmental factors, sea-ice and depth. Attribution to habitats only poorly explained benthic composition, and small-scale bottom topography did not explain such patterns at all. The large-scale factors, sea-ice and depth, might have caused large-scale differences in pelagic benthic coupling, whilst small-scale variability, also affecting larger scales, seemed to be predominantly driven by unknown physical drivers or biological interactions.
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影响因子：
11.6
作者：
Gutt, Julian;Bertler, Nancy;Xavier, Jose C.
通讯作者：
Xavier, Jose C.
影响因子：
3.7
作者：
Grange LJ;Smith CR
通讯作者：
Smith CR
基于模型的座头鲸、长须鲸和磷虾分布 - 西南极半岛快照研究的结果
DOI：
--
发表时间：
2016
期刊：
--
影响因子：
--
作者：
H. Herr;S. Viquerat;V. Siegel;K. Kock;B. Dorschel;W. Huneke;A. Bracher;M. Schröder;J. Gutt
通讯作者：
J. Gutt
南大洋的生存前景：底栖物种对温度变化的脆弱性
影响因子：
1.6
作者：
L. Peck
通讯作者：
L. Peck
影响因子：
1.4
作者：
Jerosch;Krajnik;Scharf;Dorschel
通讯作者：
Dorschel