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Effects of Climate-Driven Temperature Changes on the Diversity of Freshwater Macroinvertebrates
T. Burgmer, H. Hillebrand and M. Pfenninger
Vol. 151, No. 1 (Feb., 2007), pp. 93-103
Stable URL: http://www.jstor.org/stable/40210508
Page Count: 11
You can always find the topics here!Topics: Species, Climate change, Climate models, Marine ecology, Lakes, Global warming, Music analysis, Statistical variance, Water temperature, Ecological life histories
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Increasing temperatures due to climate change were found to influence abundance and timing of species in numerous ways. Whereas many studies have investigated climate-induced effects on the phenology and abundance of single species, less is known about climate-driven shifts in the diversity and composition of entire communities. Analyses of long-term data sets provide the potential to reveal such relationships. We analysed time series of entire communities of macrozoobenthos in lakes and streams in Northern Europe. There were no direct linear effects of temperature and climate indices (North Atlantic Oscillation index) on species composition and diversity, but using multivariate statistics we were able to show that trends in average temperature have already had profound impacts on species composition in lakes. These significant temperature signals on species composition were evident even though we analysed comparatively short time periods of 10- 15 years. Future climate shifts may thus induce strong variance in community composition.
Oecologia © 2007 Springer