{"key":"cdb18b79-2beb-4f7a-8792-105e3f8afaab","installationKey":"7743c35d-adbd-4ca6-a185-193a7a8d2684","publishingOrganizationKey":"9d8de7ef-a571-4bc3-985a-86a9b8dddd77","doi":"10.15468/6p6nea","version":"1.1","external":false,"numConstituents":0,"type":"OCCURRENCE","subtype":"OBSERVATION","title":"Data on the locations and behavior of breeding birds obtained by mapping (registrations made during census visits) along a fixed route (permanent transect) in pine forests (Russia, Moscow region, Prioksko-Terrasny Nature Biosphere Reserve named after Mikhail Zablotsky","description":"\n            The dataset describes the spatial distribution of registrations and behaviour of 66 bird species censused by the territory mapping method during the breeding period along a fixed route (permanent transect) in pine forests of different ages (from 50 to 120 years) growing in the Oka River valley. The route length was 2800 m, with a maximum elevation difference of about 15 m. Geographic coordinates of the furthest points of the route were 54°51.684'N, 37°34.725' E and, 54°51.718' N, 37°37.472' E. In 2002 and 2003, 11 and 15 complete (each during two mornings) mapping visits were conducted from April 6 to July 8 and from April 5 to July 6, respectively. The mapping visits were made regularly at intervals of 4-6 days.\n        ","language":"eng","citation":{"text":"Cherenkov S, Romanov M, Ivanova N (2025). Data on the locations and behavior of breeding birds obtained by mapping (registrations made during census visits) along a fixed route (permanent transect) in pine forests (Russia, Moscow region, Prioksko-Terrasny Nature Biosphere Reserve named after Mikhail Zablotsky. Version 1.1. A.N. Severtsov Institute of Ecology and Evolution, RUSSIAN ACADEMY OF SCIENCES. Occurrence dataset https://doi.org/10.15468/6p6nea accessed via GBIF.org on 2026-10-13.","citationProvidedBySource":false},"contactsCitation":[{"key":6092596,"abbreviatedName":"Cherenkov S","firstName":"Sergey","lastName":"Cherenkov","roles":["ORIGINATOR","METADATA_AUTHOR"],"userId":["https://orcid.org/0009-0007-6978-4770"]},{"key":6092597,"abbreviatedName":"Romanov M","firstName":"Michael","lastName":"Romanov","roles":["ORIGINATOR"],"userId":["https://orcid.org/0000-0002-0661-2513"]},{"key":6092598,"abbreviatedName":"Ivanova 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S.E. 2020. Faunistic composition, phenology and nesting density of birds of pine forests of the Prioksko-Terrasny State Biosphere Reserve (Moscow region) // Russian Journal of Ornithology.Vol. 30, Express-Issue 2021. P. 4763-4778. (In Russian). [Черенков С.Е. 2020. Фаунистический состав, фенология и гнездовая плотность птиц сосновых лесов Приокско-Террасного государственного биосферного заповедника (Московская область) // Русский орнитологический журнал 2021, Том 30, Экспресс-выпуск 2124: 4763-4778.]","citationProvidedBySource":false},{"text":"Priednieks J., Kuresoo A., Kurlavichus P. 1986. Recommendations for an ornithological monitoring in the Baltic region. Riga: Zinatne. 66 p. (In Russian). [Приедниекс Я., Куресоо А., Курлавичюс П. 1986. Рекомендации к орнитологическому мониторингу в Прибалтике. Рига: Зинатне. 66 с.]","citationProvidedBySource":false},{"text":"Tomiałojć L. 1980. The combined version of the mapping method // H. Oelke (ed.). Bird Census Work and Nature Conservation. Proc. VI Intern. Conf. Bird Census Work. Göttingen. P. 92-106.","citationProvidedBySource":false},{"text":"Verner J. 1985. Assessment of counting techniques // Johnston R.F. (ed.). Current Ornithology. Vol. 2. New York and London: Plenum Press. P. 247-302.","citationProvidedBySource":false}],"curatorialUnits":[],"taxonomicCoverages":[{"coverages":[{"scientificName":"Aves","rank":{"verbatim":"class","interpreted":"CLASS"}}]}],"geographicCoverages":[{"description":"Russia, Moscow Region, Prioksko-Terrasny Nature Biosphere Reserve named after Mikhail Zablotsky.","boundingBox":{"minLatitude":54.85977,"maxLatitude":54.86353,"minLongitude":37.57738,"maxLongitude":37.62553,"globalCoverage":false}}],"temporalCoverages":[{"@type":"verbatim","period":"Spring-Summer 2002 and 2003","type":"FORMATION_PERIOD"}],"keywordCollections":[{"thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml","keywords":["Occurrence"]},{"thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml","keywords":["Observation"]}],"samplingDescription":{"studyExtent":"3948 bird registrations at the first encounter with the bird, including 1442 registrations of simultaneously singing males; additionally, 4033 repeated records of the same individuals whose movements were tracked.\nThe dataset provides the most detailed presentation of primary information (coming from mapping visits) on the registrations of common bird species breeding in the pine forests of the Moscow region. It is of interest for understanding the spatial structure of local populations and the dynamics of singing activity during the breeding season, as well as for monitoring and comparing populations.\nThe dataset will be supplemented in the near future with a compatible set of vegetation relevés made along the same permanent transect.","sampling":"The fixed route (permanent transect) was laid along the terrace of the left bank of the Oka River, overgrown with pine forests of different ages. The route ran along the southern shore of Lake Sionskoye and crossed the valleys of two small rivers Rechenka and Ponikovka.\nThe route was marked with the numbered stakes located every 25 m. The geographic coordinates of the stakes were determined using a GPS navigator.\nRegular bird counts were conducted along the route using an improved version of the territory mapping method (Tomiałojc 1980; Verner 1985; Priednieks et al. 1986). A plane table mounted horizontally on a tripod was used for mapping. A strip of millimetre paper with stake numbers marked on it was attached to the plane table. The strip was shifted gradually by the observer as the route was traversed. The tripod was set up at each stake point, and the plane table was orientated. Birds were counted during 5 minutes from points located 50 m apart. The majority of bird species were recorded within a radius of 100 m from the stake. The counts were conducted on days without precipitation and strong winds. The counting started in the first or second hour after sunrise. Birds were only mapped on the first half of the route on one morning and on the second half on the next morning with good weather. The mapping visits were made regularly at intervals of 4-6 days. At every next complete (two mornings) visit, the observer changed the direction of movement to the opposite. For each visit, the date, start and end time and geographic coordinates, distance travelled, weather conditions, etc., were recorded. \nFor each bird detected during the visit, the position on the map (relative coordinates - X, Y), species, sex, age, and behaviour (singing, courtship, non-singing, with food, with nest material, etc.) were recorded. Also, mostly for singing males, the coordinates of observed movements and of simultaneously observed individuals of each species were noted. All conflicts between birds were also recorded. \nIn addition to census visits, nest searching, and observing nesting behaviour and conflicts, as well as selective mapping (mostly for uncommon or inconspicuous species), were conducted within 100 m on each side of the route.","methodSteps":["The data from the counts (mapping visits) and additional (selective) observations were digitised and entered into the database PTZ_2002_2003_3948reg_66sp.mdb. This database allows materials to be presented in the form of digital raster maps (raster grid cells of sizes 25 × 25, 50 × 50, and 100 × 100 m) for any of the variables evaluated (species, time period, sex, age, behaviour, etc.). The author is willing to provide the database to interested specialists. The original data from PTZ_2002_2003_3948reg_66sp.mdb were transferred to the GBIF dataset.\nBreeding densities, bird phenology data, and nesting information, as well as more detailed descriptions of the transect and data collection methods, are given (in Russian) in Cherenkov (2020)."]},"countryCoverage":[],"collections":[],"dataDescriptions":[],"dataLanguage":"eng","pubDate":"2025-05-05T00:00:00.000+00:00","maintenanceUpdateFrequency":"AS_NEEDED","maintenanceDescription":"","license":"http://creativecommons.org/licenses/by/4.0/legalcode","dwca":{"coreType":"http://rs.tdwg.org/dwc/terms/Occurrence","extensions":[],"modified":"2026-07-10T19:19:05.548+00:00"},"approximateCounts":{"occurrenceCount":7981}}