Realm: Freshwater
Climate: Temperate
Biome: Lake ecosystem
Central latitude: 44.107640
Central longitude: 27.075290
Duration: 33 years, from 1977 to 2017

186 records

33 distinct species

Across the time series Anas platyrhynchos 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. 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: Srebarna Lake.

Citation(s)

@article{BioTIME_cit363, Study_id={603}, 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 = {603}, 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} }