http://bolin.su.se/data/maneas-2020-waterbirds-1 Giorgos Maneas, Dimitris Bousbouras, Viggo Norrby Bolin Centre Database 2020 Datafile Lacustrine Ecosystems Waterbirds Species richness Species abundance Coastal wetland Natura 2000 Management suggestions Conservation needs Greece Gialova lagoon Navarino Environmental Observatory Earth science > Human dimensions > Environmental impacts > Conservation Giorgos Maneas 2020-12-10T13:35:36+00:00 English 1 The data are contained in a single csv spreadsheet file. Values are separated by semicolon. In order of appearance, after the numbering (first column), the three following columns contain information about the taxonomy (order, family, species) of the observed waterbirds. In the column after taxonomy, explanation about Time (rows 2 to 4: Year, Period, Month) and Location (rows 5 and 6: Sub-areas and size of each sub-area in hectares) is added. The subsequent columns contain information about the monthly abundance of each species across the different sub-areas of the wetland. At the bottom of each month, the observations are summarized into the different waterbirds' categories (wildfowl, grebes, coot, herons, cormorants, flamingos, gulls and terns, waders). Further below, the calculated diversity indices per month for the four aquatic habitats (Lagoon, NW area, N. Wetland and S. Wetland) are also reported. Species richness (S), as the number of observed species per month Species abundance (N), as the number of observed waterbirds during each count Relative abundance (RN), as the number of observed waterbirds during each count per unit area (km²) Shannon-Weiner Index (H) was calculated based on species abundance using the Shannon and Weaver (1949) formula, as described in the article by Maneas et al. (2020). Please, cite the publication by Maneas et al. (2020) when using this dataset. The lead author would also welcome to receive a notification when the data are used for any research project or publication. The [Ramsar](https://www.ramsar.org/) and [BirdLife International](http://datazone.birdlife.org/) organizations provide information about the Ramsar sites criteria and the Important bird areas respectivley.