• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: North Atlantic; North Atlantic oscillation
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.419.7614; http://www.aslo.org/lo/toc/vol_48/issue_3/1346.pdf

Climatic warming and regime shifts in lake food webs—some comments In a recent issue of Limnology and Oceanography, Scheffer et al. (2001) argued that ‘‘the probability of clear water phases increases with increasing lake water temperature in shallow lakes and that small decreases in temperature may create a shift to a turbid state and an increase to a clearwater state.’ ’ They based their evidence on a correlation between a defined clearwater state and the winter North Atlantic Oscillation (NAO) index in Dutch lakes and a simple minimal pelagic fish-zooplankton-phytoplankton-temperature model. Our perception of the role of temperature for lake water clarity is quite different, and in the present Comment we argue that the analysis by Scheffer et al. (2001) does not warrant these conclusions. We do agree, however, with several of the statements made by Scheffer et al. (2001)—for