Giorgos Maneas, Dimitris Bousbouras, Viggo Norrby
This dataset contains observed waterbirds monthly richness and abundance and other diversity indices (relevant abundance and Shannon-Weaver index) at the different aquatic habitats of the Gialova Lagoon wetland, Messinia, Greece.
The data were collected to complement existing information about the site and to evaluate the current status and distribution of waterbirds in the Gialova Lagoon wetland, one of the few remaining important bird area (IBA) wetlands along the southwest coast of Greece. The data were used to to understand which parts of the wetland are mostly used by waterbirds, identify conservation needs and potential management implications, and to re-assess the IBA/Ramsar criteria and the status of the site, as the last evaluation was in 2001.
The data were collected in and around the Gialova lagoon from November 2016 to January 2019, following a methodology with 13 predetermined observation points with good view. The observations started with the first light spending maximum 30 min at each point, using field equipment consisted of binoculars (10x magnification), a scope (20 – 60x85) and a digital camera.
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Citation
Giorgos Maneas, Dimitris Bousbouras, Viggo Norrby (2020) Waterbirds species distribution in Gialova lagoon, Greece, November 2016 – January 2019. Dataset version 1. Bolin Centre Database. https://doi.org/10.17043/maneas-2020-waterbirds-1
References
Maneas G, Bousbouras D, Norrby V and Berg H (2020) Status and Distribution of Waterbirds in a Natura 2000 Area: The Case of Gialova Lagoon, Messinia, Greece. Front. Ecol. Evol. 8:501548. https://doi.org/10.3389/fevo.2020.501548
Data description
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).
Comments
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 and BirdLife International organizations provide information about the Ramsar sites criteria and the Important bird areas respectivley.