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| Titel |
Statistical analysis of polychaete population density: dynamics of dominant species and scaling properties in relative abundance fluctuations |
| VerfasserIn |
B. Quiroz-Martinez, F. G. Schmitt, J.-C. Dauvin |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1023-5809
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| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics ; 19, no. 1 ; Nr. 19, no. 1 (2012-01-05), S.45-52 |
| Datensatznummer |
250014163
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| Publikation (Nr.) |
 copernicus.org/npg-19-45-2012.pdf |
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| Zusammenfassung |
| We consider here the dynamics of two polychaete populations based on a 20 yr
temporal benthic survey of two muddy fine sand communities in the Bay
of Morlaix, Western English Channel. These populations display high temporal
variability, which is analyzed here using scaling approaches. We find that
population densities have heavy tailed probability density functions. We
analyze the dynamics of relative species abundance in two different
communities of polychaetes by estimating in a novel way a "mean square
drift" coefficient which characterizes their fluctuations in relative
abundance over time. We show the usefulness of using new tools to approach
and model such highly variable population dynamics in marine ecosystems. |
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