Biodiversity conservation in Mediterranean and Black Sea lagoons: a trait-oriented approach to benthic invertebrate guilds

摘要: 1. The extent to which conservation of biodiversity enforces the protection ecosystem functioning, goods and services is a key issue in ecology. 2. In order address this issue, work focused on community organization, linking structure, as described both taxonomic functional terms, functioning processes. 3. Body size an individual trait that deterministically related components such population dynamics energy flow, determines structure. Since body reflects numerous factors, it also exposed selection niche filtering underlying community. 4. An analysis relevance organization transitional water ecosystems eastern Mediterranean Black Sea regions presented, based field research conducted sample 15 ecosystems. 5. 250 taxa were identified, clumped five orders magnitude size. All patterns showed triangular distributions with optimal range 0.13 mg 1.0 mass. 6. Deterministic structure emphasized hierarchical dominance large sizes was demonstrated by slopes size-abundance distributions, consistently larger than EER threshold (b=−0.75), direct relationship use for most range. 7. Consistent variations size-related descriptors observed three main gradients environmental stress: eutrophication, confinement metal pollution. 8. results support constraints imposed adequacy indicator ecological these fragile ecosystems. Copyright © 2008 John Wiley & Sons, Ltd.