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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1111/gcb.14988
|2 doi
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|a eng
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|a Fabri-Ruiz, Salomé
|e verfasserin
|4 aut
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| 245 |
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|a Benthic ecoregionalization based on echinoid fauna of the Southern Ocean supports current proposals of Antarctic Marine Protected Areas under IPCC scenarios of climate change
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 29.11.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2020 John Wiley & Sons Ltd.
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|a The Southern Ocean (SO) is among the regions on Earth that are undergoing regionally the fastest environmental changes. The unique ecological features of its marine life make it particularly vulnerable to the multiple effects of climate change. A network of Marine Protected Areas (MPAs) has started to be implemented in the SO to protect marine ecosystems. However, considering future predictions of the Intergovernmental Panel on Climate Change (IPCC), the relevance of current, static, MPAs may be questioned under future scenarios. In this context, the ecoregionalization approach can prove promising in identifying well-delimited regions of common species composition and environmental settings. These so-called ecoregions are expected to show similar biotic responses to environmental changes and can be used to define priority areas for the designation of new MPAs and the update of their current delimitation. In the present work, a benthic ecoregionalization of the entire SO is proposed for the first time based on abiotic environmental parameters and the distribution of echinoid fauna, a diversified and common member of Antarctic benthic ecosystems. A novel two-step approach was developed combining species distribution modeling with Random Forest and Gaussian Mixture modeling from species probabilities to define current ecoregions and predict future ecoregions under IPCC scenarios RCP 4.5 and 8.5. The ecological representativity of current and proposed MPAs of the SO is discussed with regard to the modeled benthic ecoregions. In all, 12 benthic ecoregions were determined under present conditions, they are representative of major biogeographic patterns already described. Our results show that the most dramatic changes can be expected along the Antarctic Peninsula, in East Antarctica and the sub-Antarctic islands under both IPCC scenarios. Our results advocate for a dynamic definition of MPAs, they also argue for improving the representativity of Antarctic ecoregions in proposed MPAs and support current proposals of Conservation of Antarctic Marine Living Resources for the creation of Antarctic MPAs
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| 650 |
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|a Journal Article
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| 650 |
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4 |
|a Marine Protected Areas
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| 650 |
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4 |
|a climate change
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| 650 |
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4 |
|a echinoids
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| 650 |
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4 |
|a ecological niche modeling
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| 650 |
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4 |
|a ecoregionalization
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| 700 |
1 |
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|a Danis, Bruno
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Navarro, Nicolas
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Koubbi, Philippe
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Laffont, Rémi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Saucède, Thomas
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Global change biology
|d 1999
|g 26(2020), 4 vom: 10. Apr., Seite 2161-2180
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnns
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| 773 |
1 |
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|g volume:26
|g year:2020
|g number:4
|g day:10
|g month:04
|g pages:2161-2180
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|u http://dx.doi.org/10.1111/gcb.14988
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