Advances in Marine Biology
نویسندگان
چکیده
The ongoing and future effects of global climate change on natural and human-managed ecosystems have led to a renewed interest in the concept of ecological thresholds or tipping points. While generalizations such as poleward range shifts serve as a useful heuristic framework to understand the overall ecological impacts of climate change, sophisticated approaches to management require spatially and temporally explicit predictions that move beyond these oversimplified models. Most approaches to studying ecological thresholds in marine ecosystems tend to focus on populations, or on non-linearities in physical drivers. Here we argue that many of the observed thresholds observed at community and ecosystem levels can potentially be explained as the product of non-linearities that occur at three scales: (a) the mechanisms by which individual organisms interact with their ambient habitat, (b) the non-linear relationship between organismal physiological performance and Department of Biological Sciences and Environment and Sustainability Program, University of South Carolina, Columbia, SC, USA 1 Corresponding author: Email: [email protected] Advances in Marine Biology, Volume 60 © 2011 Elsevier Ltd ISSN: 0065-2881, DOI: 10.1016/B978-0-12-385529-9.00003-2 All rights reserved.
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