62685a53-49c7-422a-ad00-2a04613979e5 Dimitar Popov Green Balkans NGO Project manager dpopov@greenbalkans.org https://orcid.org/0000-0003-1873-8815 Dimitar Popov Green Balkans NGO Project manager dpopov@greenbalkans.org https://orcid.org/0000-0003-1873-8815 Martina Pulieri University of Salento Research assistant martina.pulieri@unisalento.it https://orcid.org/0009-0001-9691-1989 Information Manager 2025-04-28 English This dataset includes 148 records of nesting birds at Pomorie Lake on the Bulgarian Black Sea coast during the period from 2021 to 2023. The site is of national and regional importance for several Charadriiformes species like Sandwich term Kentish plover, Pied avocet, Little tern, Black-winged stilt and Common tern. nest of bird Biological and Environmental Research Ontology Bulgaria EuroVoc Core Concepts birds waterbirds eLTER Controlled Lists Free for use, including sharing and adaptation, by all individuals provided that the owners are acknowledged in any use or publication. Creative Commons Attribution 4.0 International License https://creativecommons.org/licenses/by/4.0/ Info and download page on LifeWatch Italy Data Portal https://data.lifewatchitaly.eu/handle/123456789/129722 DOI https://doi.org/10.48372/BF5V-1X69 Pomorie Lake, Bulgaria 27.604729 27.652107 42.632544 42.558239 2021-05-15 2023-05-31 Species Anas strepera B76F3 Species Charadrius alexandrinus TMWL Species Charadrius dubius 5XPL5 Species Circus aeroginosus 5Z6WQ Species Cygnus olor 32ZQB Species Fulica atra 6K3W6 Species Glareola pratincola 3G5XG Species Haematopus ostralegus 3J8XQ Species Himantopus himantopus 3LXZ5 Species Recurvirostra avosetta 4RP59 Species Sterna hirundo 6ZSCT Species Sterna sandvicensis 7C5FT Species Sternula albifrons 52G25 Species Tadorna tadorna 54GHV Species Thalasseus sandvicensis 7C5FT Species Vanellus vanellus 7FFJL http://www.w3.org/ns/dcat#keyword http://vocabs.lter-europe.net/elter_cl/10694 http://www.w3.org/ns/dcat#keyword http://purl.obolibrary.org/obo/ENVO_00005805 http://www.w3.org/ns/dcat#keyword http://eurovoc.europa.eu/5063 http://www.w3.org/ns/dcat#keyword http://vocabs.lter-europe.net/elter_cl/10695 Dimitar Popov Green Balkans NGO Project manager dpopov@greenbalkans.org https://orcid.org/0000-0003-1873-8815 LifeWatch Italy lifewatchitaly@gmail.com Telescope Swarovski ATX 30-70x95 Binoculars MINOX 8x40 Drone DJI Mavic 2 Enterprise Telescopes Opticron ES 80GA ED 20-60x80 The site has been divided up into sub-areas that are visible from the chosen vantage points without overlap of areas counted and without missing any part of the site. Areas were divided mainly by habitat type defined by salinity and depth. These were called as follows: Marine area; Main Lake; Honyat; Malak geren; Saltpans – north; Saltpans – west. Dimitar Popov Green Balkans NGO Project manager dpopov@greenbalkans.org 0000-0003-1873-8815 Point Of Contact Nesting_birds_PomLake.csv Nesting_birds_PomLake.csv 35639 MD5:8b21f5075d575ef97715da08ad68219f 1 column , catalogNumber Catalog Number An identifier (preferably unique) for the record within the data set or collection. nominal http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/catalogNumber decimalLatitude Decimal Latitude The geographic latitude (in decimal degrees, using the spatial reference system given in dwc:geodeticDatum) of the geographic center of a dcterms:Location. Positive values are north of the Equator, negative values are south of it. Legal values lie between -90 and 90, inclusive. degree ratio http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/decimalLatitude decimalLongitude Decimal Longitude The geographic longitude (in decimal degrees, using the spatial reference system given in dwc:geodeticDatum) of the geographic center of a dcterms:Location. Positive values are east of the Greenwich Meridian, negative values are west of it. Legal values lie between -180 and 180, inclusive. degree ratio http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/decimalLongitude eventDate Event Date The date-time or interval during which a dwc:Event occurred. For occurrences, this is the date-time when the dwc:Event was recorded. Not suitable for a time in a geological context. dateTime YYYY/MM/DD http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/eventDate eventTime Event Time The time or interval during which a dwc:Event occurred. dateTime hh:mm:ss http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/eventTime kingdom Kingdom The full scientific name of the kingdom in which the dwc:Taxon is classified. nominal http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/kingdom phylum Phylum The full scientific name of the phylum or division in which the dwc:Taxon is classified. nominal http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/phylum class Class The full scientific name of the class in which the dwc:Taxon is classified. nominal http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/class order Order The full scientific name of the order in which the dwc:Taxon is classified. nominal http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/order family Family The full scientific name of the family in which the dwc:Taxon is classified. nominal http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/family genus Genus The full scientific name of the genus in which the dwc:Taxon is classified. nominal http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/genus scientificName Scientific Name The full scientific name, with authorship and date information if known. When forming part of a dwc:Identification, this should be the name in lowest level taxonomic rank that can be determined. This term should not contain identification qualifications, which should instead be supplied in the dwc:identificationQualifier term. nominal http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/scientificName acceptedNameUsage Accepted Name Usage The full name, with authorship and date information if known, of the currently valid (zoological) or accepted (botanical) dwc:Taxon. nominal http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/acceptedNameUsage scientificNameAuthorship Scientific Name Authorship The authorship information for the dwc:scientificName formatted according to the conventions of the applicable dwc:nomenclaturalCode. nominal http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/scientificNameAuthorship acceptedNameUsageID Accepted Name Usage ID An identifier for the name usage (documented meaning of the name according to a source) of the currently valid (zoological) or accepted (botanical) taxon. nominal http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasCode http://rs.tdwg.org/dwc/terms/acceptedNameUsageID nestCount Nest count The number of identified/confirmed nests. dimensionless ratio breedingPairs Breeding pairs The number of identified breeding pairs. dimensionless ratio 148