{"key":"aeb5453e-5594-4a1a-9c3a-a545a3edeb7e","installationKey":"7743c35d-adbd-4ca6-a185-193a7a8d2684","publishingOrganizationKey":"9d8de7ef-a571-4bc3-985a-86a9b8dddd77","doi":"10.15468/mk3q3p","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 mixed spruce-small-leaved forest of different ages (Russia, Moscow region, border of Naro-Fominsk and Podolsk districts)","description":"\n            The dataset describes the spatial distribution of registrations and behavior of 66 bird species censused by the territory mapping method during the breeding period along a fixed route (permanent transect) in mixed spruce-small-leaved and spruce forests of different ages (from 30 to 110 years).The route length was 2700 m, with a maximum elevation difference of about 10 m. Geographic coordinates of the furthest points of the route were 55°26′51.7″ N, 37°09′37.6″ E and 55°28′16.5″ N, 37°09′02.1″ E. For five years (1990, 1991, 1992, 1994 and 1998), from early April to mid-July, birds were mapped along the route. The mapping visits were made regularly at intervals of 4-6 days.\n        ","language":"eng","citation":{"text":"Cherenkov S, Romanov M, Ivanova N (2026). Data on the locations and behavior of breeding birds obtained by mapping (registrations made during census visits) along a fixed route (permanent transect) in mixed spruce-small-leaved forest of different ages (Russia, Moscow region, border of Naro-Fominsk and Podolsk districts). Version 1.1. A.N. Severtsov Institute of Ecology and Evolution, RUSSIAN ACADEMY OF SCIENCES. Occurrence dataset https://doi.org/10.15468/mk3q3p accessed via GBIF.org on 2026-10-14.","citationProvidedBySource":false},"contactsCitation":[{"key":7045376,"abbreviatedName":"Cherenkov S","firstName":"Sergey","lastName":"Cherenkov","roles":["ORIGINATOR","METADATA_AUTHOR"],"userId":["https://orcid.org/0009-0007-6978-4770"]},{"key":7045377,"abbreviatedName":"Romanov M","firstName":"Michael","lastName":"Romanov","roles":["ORIGINATOR"],"userId":["https://orcid.org/0000-0002-0661-2513"]},{"key":7045378,"abbreviatedName":"Ivanova 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S. E., Gubenko I. Yu., Tiunov A.V., Kuzmichev A.Yu. 1995. Factors determining the spatial structure of the settlement of thrushes (Turdus) in conditions of high forest mosaic. \"Zoological Journal.\" Vol 74, issue 2, pp. 104-119. (In Russian). [Черенков С.  Е., Губенко И. Ю., Тиунов А. В., Кузьмичев А.Ю.  1995. Факторы, определяющие пространственную структуру поселения дроздов (Turdus) в условиях высокой мозаичности леса. \"Зоол. журн.\" том 74, вып. 2, С. 104-119.]","citationProvidedBySource":false},{"text":"Cherenkov S. E., 1996. Nest placement and nesting success of the song thrush (Turdus philomelos) in conditions of high forest mosaic. \"Zoological Journal\" Vol. 75, issue 6, pp. 917-925 (In Russian). [Черенков С.  Е., 1996. Размещение гнезд и успешность гнездования певчего дрозда (Turdus philomelos) в условиях высокой мозаичности леса. \"Зоол. журн.\" Том 75, вып. 6, С. 917-925]","citationProvidedBySource":false},{"text":"Cherenkov S.E. 1998. Completeness of single counts of the number of forest passerine birds in the breeding season. \"Zoological Journal\". Vol. 77, issue 4, pp. 474-485 (In Russian). [Черенков С.Е. 1998. Полнота однократных учетов численности лесных воробьиных птиц в гнездовой период. \"Зоол. журн.\" том 77, вып. 4, С. 474-485.]","citationProvidedBySource":false},{"text":"Cherenkov S.E. 2011. Frequency distribution of minimum distances between singing males in different chaffinch (fringilla coelebs l.) populations as an indicator of habitat quality. Russian Journal of Ecology, 2011, Vol. 42, No. 1, pp. 38–43. [Черенков С.Е. 2010. Частотное распределение минимальных дистанций между поющими самцами в различных популяциях зяблика (Fringilla coelebs L.), как показатель качества местообитания вида. «Экология», 2010, № 4, с.1–6.]","citationProvidedBySource":false},{"text":"Cherenkov S. E. 2017. An Approach to Evaluating Ecological Status of Populations in Forest-Nesting Birds (Passeriformes and Piciformes) // Contemporary Problems of Ecology, 2017, Vol. 10, No. 3, pp. 203–214. Original Russian Text © S.E. Cherenkov, 2017, published in Sibirskii Ekologicheskii Zhurnal, 2017, No. 3, pp. 231–244. [Черенков С.Е. 2017. Подход к диагностике экологического состояния популяций гнездящихся лесных птиц (Passeriformes, Piciformes). Сибирский экологический журнал, 3 (2017) 231-244.]","citationProvidedBySource":false},{"text":"Cherenkov S.E. 2023. Faunal composition, phenology and nesting composition of birds in mixed spruce-small-tree forests of different ages in the Moscow region // Russian Journal of Ornithology. Vol. 32, Express-Issue 2023. № 2369. p. 5347-5409 (In Russian). [Черенков С.Е. 2023. Фаунистический состав, фенология и гнездовая плотность птиц смешанных елово-мелколиственных разновозрастных лесов Московской области // Русский орнитологический журнал 2023, Том 32, Экспресс-выпуск 2369: 5347-5409.]","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, border of Naro-Fominsk and Podolsk districts","boundingBox":{"minLatitude":-90.0,"maxLatitude":90.0,"minLongitude":-180.0,"maxLongitude":180.0,"globalCoverage":true}}],"temporalCoverages":[{"@type":"verbatim","period":"Spring-Summer 1990, 1991, 1992, 1994 and 1998","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":"18081 bird registrations at the first encounter with the bird, including 6772 registrations of simultaneously singing males; additionally, 6942 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 mixed spruce-deciduous and spruce forests of the Moscow region. It is of interest for understanding the spatial structure of local populations  (Cherenkov, Gubenko et al. 1995; Cherenkov 1996), the dynamics of singing activity during the breeding season (Cherenkov 1998), as well as for monitoring and comparing populations (Cherenkov 2011; Cherenkov 2017).\nThe dataset will be supplemented in the near future with a compatible set of vegetation relevés made along the same permanent transect.","sampling":"The route (transect) is laid through an array of forests of different ages, from the watershed to the valley of the Zhiletovka River. In the floodplain of the river, the route crossed small treeless areas, with a total length of about 100 m. The beginning and the end of the route fell on the forest edges. The woody vegetation on the route corresponded to different stages of natural regeneration of spruce-deciduous forests in cuttings, arable lands and meadows. The main canopy-forming tree species are spruce Picea abies, fluffy birch Betula pubescens and warty B. pendula, as well as aspen Populus tremula. Occasionally, as a rule, on the slopes of the southern exposure, the petiolate oak Quercus robur is marked in the stand of the first tier, and in the second tier the holly maple Acer platanoides and the small-leaved linden Tilia cordata. The age of the first-tier stand on the route varied from 35 to 110 years, and the height of the stand from 15 to 33 m. A more detailed botanical description of the route was given earlier (Cherenkov, Gubenko et al. 1995; Cherenkov S.E. 2023).\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 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 millimeter 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 oriented. 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 traveled, 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 behavior (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, observing nesting behavior 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 digitized and entered into the database Malinki 1990_1998_18081reg_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, behavior, etc.). The author is willing to provide the database to interested specialists. The original data from Malinki 1990_1998_18081reg_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 in the article (Cherenkov 2023)."]},"countryCoverage":[],"collections":[],"dataDescriptions":[],"dataLanguage":"eng","pubDate":"2026-06-15T00:00:00.000+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":"2026-06-15T15:00:22.870+00:00"},"approximateCounts":{"occurrenceCount":25023}}