2,681 research outputs found
Corrigendum to “Delta SARS-CoV-2 variant is entirely substituted by the omicron variant during the fifth COVID-19 wave in Attica region” [Sci. Total Environ., 856(Pt 1) (2023)/159062] (Science of the Total Environment (2023) 856(P1), (S0048969722061617), (10.1016/j.scitotenv.2022.159062))
No full textThe authors state that the printed version of the above article missed the contribution of an author, which was that the third author had contributed to the writing of the original draft in addition to methodology. The correct and final version follows. CRediT authorship contribution statement Aikaterini Galani: Methodology, Validation, Writing – original draft. Athina Markou: Supervision, Writing – review & editing, Project administration. Lampros Dimitrakopoulos: Methodology, Writing – original draft. Aikaterini Kontou: Validation. Marios Kostakis: Validation. Vasileios Kapes: Methodology. Marios A. Diamantopoulos: Formal analysis, Software. Panagiotis G. Adamopoulos: Formal analysis. Margaritis Avgeris: Formal analysis, Writing– review & editing. Evi Lianidou: Writing – review & editing. Andreas Scorilas: Formal analysis. Dimitrios Paraskevis: Writing – review & editing. Sotirios Tsiodras: Writing – review & editing. Meletios-Athanasios Dimopoulos: Funding acquisition, Writing – review & editing. Nikolaos Thomaidis: Conceptualization, Project administration, Visualization, Resources. © 2022 Elsevier B.V
DS_10.1177_2381468318814253 – Supplemental material for Development of an Initial Conceptual Model of Multiple Myeloma to Support Clinical and Health Economics Decision Making
No full textSupplemental material, DS_10.1177_2381468318814253 for Development of an Initial Conceptual Model of Multiple Myeloma to Support Clinical and Health Economics Decision Making by Sebastian Gonzalez-McQuire, Meletios-Athanassios Dimopoulos, Katja Weisel, Walter Bouwmeester, Roman Hájek, Marco Campioni, Craig Bennison, Weiwei Xu, Krystallia Pantiri, Marja Hensen, Evangelos Terpos and Stefan Knop in MDM Policy & Practice</p
Examining the relationship between total species richness and single island palaeo- and neo-endemics
No full textRecently, Emerson and Kolm (2005) hypothesized that diversity begets speciation (DBS hypothesis). The relationship between total species richness and single island endemic diversity (as a proportion of the total species richness of the island) has been used as evidence for the DBS hypothesis. This relationship has been documented in oceanic archipelagos, but many criticisms have been raised on whether this relationship truly supports the DBS hypothesis. In this study we tested if this hypothesis holds in the Aegean archipelago (a continental archipelago with continuous human presence over millennia). Endemism in the Aegean includes mainly neo-endemic species but also relictual populations of formerly more widespread species (i.e. palaeo-endemics). Contrary to the DBS hypothesis, we found that total species richness was not significantly correlated to single island endemics (neither neo-endemics nor palaeo-endemics) as a proportion of the island flora. Furthermore, we found that neo-endemic diversity (either as species richness or as a proportion of the islands flora) is mainly correlated to island maximum elevation, while area and isolation were less important. So if this ratio is indeed an index of speciation, then an alternative explanation might be that elevation (interpreted as a proxy for habitat heterogeneity) is the driver of speciation in our case. Palaeo-endemics, on the other hand, were present in only six of the largest islands in the Aegean and their diversity was strongly correlated only with island area, perhaps implying that larger islands support larger population sizes that buffer stochastic extinctions risks. (C) 2010 Elsevier Masson SAS. All rights reserved
How does plant species composition change from year to year? A case study from the herbaceous layer of a submediterranean oak woodland
No full textOver millions of years there is a long-term increase in species richness, accompanied by substantial turnover in species composition. However, little is known about species temporal turnover over shorter, ecologically relevant time periods, such as years. In the present study, we examine the inter-annual temporal turnover in species composition in 100 m(2) plots of the herbaceous layer in a submediterranean oak woodland over six years. We found that approximately half of the accumulated number of species over the six years is accommodated as temporal turnover. We also found that species temporal turnover in undisturbed control plots was not significantly different from that in plots where vegetation was recovering naturally without assistance, i.e., plots undergoing ecological succession. Only in the most disturbed (continuously overgrazed) plots temporal turnover was low to non-existent. We therefore suggest that diversity estimates based on a single year of observations may seriously underestimate species richness or the detrimental effects of disturbance, at least at the 100 m(2) scale. Furthermore, we found that, with the exception of the heavily grazed plots, short-lived species (annuals and biennials) did not display significantly greater temporal turnover than long-lived (perennial) species. Our analysis also supports that the space for time substitution applies in the patterns of species turnover. Spatial species turnover was comparable to temporal turnover. Species that are observed in many plots are also present in many years, and vice versa. Also, the similarity in species composition decreased as the time period between observations increased, as is the case with distance decay. Overall we conclude that the patterns of species turnover in time resemble those in space, and thus temporal turnover makes an important contribution to total biodiversity that should not be ignored
Efstathios Kastritis, Athanasios Anagnostopoulos, Maria Roussou, Dimitra Gika, Charis Matsouka, Despina Barmparousi
No full textEfstathios Kastritis, Athanasios Anagnostopoulos, Maria Roussou, Dimitra Gika, Charis Matsouka, Despina Barmparousi
No full textMultiple-Facet Diversity Patterns of Aquatic Vegetation in Lakes along a Trophic Gradient
No full textThe EU Water Framework Directive foresees the ecological assessment of surface waters against identified pressures. Nutrient loading is the main pressure impairing the ecological quality of lake ecosystems, and aquatic macrophytes are considered good indicators of ecological response. In this study, we statistically assessed different aspects of aquatic plant (macrophyte) diversity in response to different trophic levels in Mediterranean lakes. We used 5690 relevés of aquatic vegetation, distributed over 305 transects, sampled in 18 freshwater lake ecosystems during 2013–2016. Our results show a significant decrease in taxonomic alpha diversity in lakes with a total phosphorus content above 100 μg/L. Syntaxonomic diversity followed the species richness pattern as well. Functional richness decreased along the trophic gradient, while functional dispersion was higher in lakes with high trophic levels. Taxonomic and functional beta partitioning presented changes in assembly processes leading to greater community homogeneity in lakes with higher trophic levels. In summary, we found no redundancy between taxonomic and functional diversity indices. These results provide novel insights into aquatic plant assembly processes of impacted freshwater lakes needed to forward conservation and restoration practices
Meletios A. Dimopoulos, Giampaolo Merlini, Veronique Leblond, Athanasios Anagnostopoulos, Raymond Alexanian
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