| Autor: |
Castillo-Escrivà, Andreu, Valls, Luis, Rochera, Carlos, Camacho, Antonio, Mesquita-Joanes, Francesc |
| Předmět: |
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| Zdroj: |
Aquatic Sciences; Oct2016, Vol. 78 Issue 4, p707-716, 10p |
| Abstrakt: |
The metacommunity concept has promoted a new theoretical view of communities that emphasizes their inter-dependence in a multi-scale nature. However, empirical studies testing the proposed mechanisms structuring communities are still scarce. Here we present a multi-scale spatial analysis on the ostracod metacommunity from endorheic lakes in the Central Iberian Peninsula. For this purpose, multivariate ordination, scalograms and variation partitioning analysis were used to identify environmental (i.e. species sorting) and spatial control (i.e. dispersal limitation, mass effects), and their effects on the metacommunity. The results indicate that both species sorting and dispersal processes structure the metacommunity. The main environmental factors contributing to species sorting were salinity and ephemerality. In addition, significant broad-scale spatial components also structure the species assemblages, suggesting ostracod dispersal limitation within the spatial extent considered. Our study confirms the importance of species sorting, but also reveals how dispersal processes play a role in the structure of ostracod metacommunities. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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