Realm: Marine
Climate: Temperate
Biome: Temperate Shelf and seas ecoregions
Central latitude: 42.915905
Central longitude: 28.016112
Duration: 40 years, from 1976 to 2017

1162 records

62 distinct species

Across the time series Fulica atra is the most frequently occurring species

Methods

Wintering water birds are counted each year in the middle of January along defined transects. The counting is done along the wetland shores by foot and with cars, using fieldscopes and binoculars with an observation distance of 1000-2000 meters. Several points with easy access to the water body are chosen. The same points are visited each year and for each site a separate protocol is filled in. All protocols are then combined into a single dataset for the water body. Geese are counted early in the morning when the birds fly towards their feeding grounds. The other water birds are counted during the day. Study area: 1) Black sea coast: Tyulenovo - Kaliakra (corresponds to Black-sea Bulgaria): total length 16 km; starts at Tyulenovo Village - Shabla Town (28.6026; 4 3.5184), passes through Kaliakra Cape (28.4658; 43.3568) and ends at the southernmost border of the Balgarevo Village (28.3825; 43.4014); 2) Black sea coast: Chernomorets - Dyuni (corresponds to Sozopol - Black Sea Bulgaria): total length 20 km; starts at Chernomorets Town (27.6531; 42.4492), passes through the bays north and south of Sozopol to Agalina Cape (27.72409; 42.37841); 3) Black sea coast: Dalyana - Vlas: total length 20 km; starts at 27.8466; 42.6946 and reaches the southernmost part of the bay in the Sunny Beach Resort (27.7474; 42.6587); 4) Black sea coast: Kamchia - Irakli: total length 43 km; starts at the northernmost point of Kamchiya Resort (27.8973; 43.0428), passes along the sea coast of Byala and Obzor Towns and ends at Emine Cape (27.9036; 42.6988).

Citation(s)

@article{BioTIME_cit363, Study_id={601}, Citation_id={363}, Title = {Wintering water birds at nine sites in Bulgaria, 1976-2017}, Publisher = {eLTER}, Url = {https://doi.org/10.23728/b2share.ea5af584b5104dd8a09b55eb7ad73335}, Doi = {10.23728/b2share.ea5af584b5104dd8a09b55eb7ad73335}, Author = {Nikolov, Boris and Evtimova, Vesela and Stanchev, Radoslav}, Year = {2020}, }<br/>@Article{BioTIME_cit364, Study_id = {601}, Citation_id = {364}, Author = {Pilotto, Francesca and K{\"u}hn, Ingolf and Adrian, Rita and Alber, Renate and Alignier, Audrey and Andrews, Christopher and B{\"a}ck, Jaana and Barbaro, Luc and Beaumont, Deborah and Beenaerts, Natalie and Benham, Sue and Boukal, David S. and Bretagnolle, Vincent and Camatti, Elisa and Canullo, Roberto and Cardoso, Patricia G. and Ens, Bruno J. and Everaert, Gert and Evtimova, Vesela and Feuchtmayr, Heidrun and Garc{\'\i}a-Gonz{\'a}lez, Ricardo and G{\'o}mez Garc{\'\i}a, Daniel and Grandin, Ulf and Gutowski, Jerzy M. and Hadar, Liat and Halada, Lubos and Halassy, Melinda and Hummel, Herman and Huttunen, Kaisa-Leena and Jaroszewicz, Bogdan and Jensen, Thomas C. and Kalivoda, Henrik and Schmidt, Inger Kappel and Kr{\"o}ncke, Ingrid and Leinonen, Reima and Martinho, Filipe and Meesenburg, Henning and Meyer, Julia and Minerbi, Stefano and Monteith, Don and Nikolov, Boris P. and Oro, Daniel and Ozoli?{\v s}, D?vis and Padedda, Bachisio M. and Pallett, Denise and Pansera, Marco and Pardal, Miguel {\^A}ngelo and Petriccione, Bruno and Pipan, Tanja and P{\"o}yry, Juha and Sch{\"a}fer, Stefanie M. and Schaub, Marcus and Schneider, Susanne C. and Skuja, Agnija and Soetaert, Karline and Spri??e, Gunta and Stanchev, Radoslav and Stockan, Jenni A. and Stoll, Stefan and Sundqvist, Lisa and Thimonier, Anne and Hoey, Gert Van and Ryckegem, Gunther Van and Visser, Marcel E. and Vorhauser, Samuel and Haase, Peter}, Journal = {Nature Communications}, Pages = {3486}, Title = {Meta-analysis of multidecadal biodiversity trends in Europe}, Volume = {11}, Year = {2020}, Doi = {10.1038/s41467-020-17171-y}, Language = {English} }