Possible effects of global environmental changes on Antarctic benthos: a synthesis across five major taxa

Ecology and Evolution

Jeroen Ingels⁴  Ann Vanreusel⁴  Angelika Brandt⁵  Ana I. Catarino²  Bruno David¹  Chantal De Ridder²  Philippe Dubois²  Andrew J. Gooday³  Patrick Martin⁶  Francesca Pasotti⁴ 

[1] Biogeosciences, The University of Burgundy, UMR CNRS 5561, Bd Gabriel 6,21000 Dijon, France;Marine Biology Laboratory, Université Libre de Bruxelles, CP160/15, Avenue F.D. Roosevelt 50, 1050 Brussels, Belgium;Ocean Biogeochemistry & Ecosystems Research Group, National Oceanography Centre, European Way, Southampton SO14 3ZH, United Kingdom.;Marine Biology Department, Ghent University, Krijgslaan 281 S8, 9000 Ghent, Belgium;Zoological Museum Hamburg, University of Hamburg, Martin-Luther-King-Platz 3, 20146 Hamburg, Germany;Royal Belgian Institute of Natural Sciences, Rue Vautier 29, 1000 Brussels, Belgium

关键词: Amphipoda;    Echinoidea;    Foraminifera;    global climate change;    Isopoda;    Nematoda;    Southern Ocean;    zoobenthos;   

DOI  :  10.1002/ece3.96

来源: Wiley

【 摘 要 】

Abstract

Because of the unique conditions that exist around the Antarctic continent, Southern Ocean (SO) ecosystems are very susceptible to the growing impact of global climate change and other anthropogenic influences. Consequently, there is an urgent need to understand how SO marine life will cope with expected future changes in the environment. Studies of Antarctic organisms have shown that individual species and higher taxa display different degrees of sensitivity to environmental shifts, making it difficult to predict overall community or ecosystem responses. This emphasizes the need for an improved understanding of the Antarctic benthic ecosystem response to global climate change using a multitaxon approach with consideration of different levels of biological organization. Here, we provide a synthesis of the ability of five important Antarctic benthic taxa (Foraminifera, Nematoda, Amphipoda, Isopoda, and Echinoidea) to cope with changes in the environment (temperature, pH, ice cover, ice scouring, food quantity, and quality) that are linked to climatic changes. Responses from individual to the taxon-specific community level to these drivers will vary with taxon but will include local species extinctions, invasions of warmer-water species, shifts in diversity, dominance, and trophic group composition, all with likely consequences for ecosystem functioning. Limitations in our current knowledge and understanding of climate change effects on the different levels are discussed.

【 授权许可】

CC BY-NC   
© 2011 The Authors. MicrobiologyOpen published by Blackwell Publishing Ltd.

Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.