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| Titel |
Comment on ''Effects of long-term high CO2 exposure on two species of coccolithophore'' by Müller et al. (2010) |
| VerfasserIn |
S. Collins |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 7, no. 7 ; Nr. 7, no. 7 (2010-07-19), S.2199-2202 |
| Datensatznummer |
250004898
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| Publikation (Nr.) |
 copernicus.org/bg-7-2199-2010.pdf |
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| Zusammenfassung |
| Populations can respond to environmental
change over tens or hundreds of generations by shifts in
phenotype that can be the result of a sustained
physiological response, evolutionary (genetic) change,
shifts in community composition, or some combination of
these factors. Microbes evolve on human timescales, and
evolution may contribute to marine phytoplankton responses
to global change over the coming decades. However, it is
still unknown whether evolutionary responses are likely to
contribute significantly to phenotypic change in marine
microbial communities under high pCO2 regimes or
other aspects of global change. Recent work by Müller et
al. (2010) highlights that long-term responses of marine
microbes to global change must be empirically measured and
the underlying cause of changes in phenotype explained.
Here, I briefly discuss how tools from experimental
microbial evolution may be used to detect and measure
evolutionary responses in marine phytoplankton grown in high
CO2 environments and other environments of interest. I
outline why the particular biology of marine microbes makes
conventional experimental evolution challenging right now
and make a case that marine microbes are good candidates for
the development of new model systems in experimental
evolution. I suggest that "black box" frameworks that
focus on partitioning phenotypic change, such as the Price
equation, may be useful in cases where direct measurements
of evolutionary responses alone are difficult, and that such
approaches could be used to test hypotheses about the
underlying causes of phenotypic shifts in marine microbe
communities responding to global change. |
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