Swedish Bird Survey: Swedish waterbird census (January)

Datos como un archivo DwC-A	descargar 48.658 registros en Inglés (7 MB) - Frecuencia de actualización: annual
Metadatos como un archivo EML	descargar en Inglés (17 KB)
Metadatos como un archivo RTF	descargar en Inglés (15 KB)

Descripción

The Swedish waterbird census in January (Svensk sjöfågelinventering (januari)) was started in 1967 as part of the international midwinter census of waterbirds coordinated by Wetlands International. The winter count of waterbirds is therefore one of the longest running surveys of Swedish birds. It is a valuable tool for monitoring the changes in the wintering populations of waterbirds in Sweden. It also provides good information of the wintering distribution of most of the species.The Swedish waterbird census (January) is one of several schemes within the Swedish Bird Survey, run by the Department of Biology at Lund University. The surveys are with a few exceptions carried out by volunteer ornithologists. The survey is mainly financed by the Swedish Environmental Protection Agency, but smaller contributions come from the county administrative boards and BirdLife Sverige. The results from the survey are reported to Wetlands International.In this dataset, some information is placed in the table ExtendedMeasurementOrFacts (eMoF), which is part of the Source Archive available to download directly from the dataset’s page on gbif.org. The Source Archive contains the data exactly as uploaded to gbif (verbatim). Should you choose to download the dataset as GBIF Annotated Archive instead, the data has been interpreted and quality controlled by gbif, but, the data in the eMoF will not be included, as the eMoF extension is not yet supported by gbif.

Registros

Los datos en este recurso de evento de muestreo han sido publicados como Archivo Darwin Core(DwC-A), el cual es un formato estándar para compartir datos de biodiversidad como un conjunto de una o más tablas de datos. La tabla de datos del core contiene 48.658 registros.

también existen 2 tablas de datos de extensiones. Un registro en una extensión provee información adicional sobre un registro en el core. El número de registros en cada tabla de datos de la extensión se ilustra a continuación.

48658

329073

193509

Este IPT archiva los datos y, por lo tanto, sirve como repositorio de datos. Los datos y los metadatos del recurso están disponibles para su descarga en la sección descargas. La tabla versiones enumera otras versiones del recurso que se han puesto a disposición del público y permite seguir los cambios realizados en el recurso a lo largo del tiempo.

Versiones

La siguiente tabla muestra sólo las versiones publicadas del recurso que son de acceso público.

¿Cómo referenciar?

Los usuarios deben citar este trabajo de la siguiente manera:

Haas F, Jönsson A (2024). Swedish Bird Survey: Swedish waterbird census (January). Version 1.0. Department of Biology, Lund University. Samplingevent dataset. https://www.gbif.se/ipt/resource?r=lu_ssij&v=1.0

Derechos

Los usuarios deben respetar los siguientes derechos de uso:

El publicador y propietario de los derechos de este trabajo es Department of Biology, Lund University. En la medida de lo posible según la ley, el publicador ha renunciado a todos los derechos sobre estos datos y los ha dedicado al Dominio público (CC0 1.0). Los usuarios pueden copiar, modificar, distribuir y utilizar la obra, incluso con fines comerciales, sin restricciones.

Registro GBIF

Este recurso ha sido registrado en GBIF con el siguiente UUID: 5c80f69a-46be-4269-8606-19ffc8b971e1. Department of Biology, Lund University publica este recurso y está registrado en GBIF como un publicador de datos avalado por GBIF Sweden.

Palabras clave

Samplingevent

Contactos

Fredrik Haas

Proveedor De Los Metadatos ●
Originador ●
Punto De Contacto

PhD, Researcher

Lund University

Ecology building, Kontaktvägen 10

22362 Lund

fageltaxering@biol.lu.se

https://www.biology.lu.se/fredrik-haas

Annelie Jönsson

Proveedor De Los Metadatos

PhD, Researcher

Lund University

Ecology building, Kontaktvägen 10

22362 Lund

naturdatavardskap@biol.lu.se

Mathieu Blanchet

Programador

mathieu.blanchet@biol.lu.se

Cobertura geográfica

All data is collected within Sweden.

Coordenadas límite	Latitud Mínima Longitud Mínima [55,336, 10,957], Latitud Máxima Longitud Máxima [69,06, 24,167]

Cobertura taxonómica

All species within the following groups are surveyed: Ducks and swans (Anatidae) Grebes (Podicipedidae) Divers (Gaviidae) Auks (Alcidae) Cormorants (Phalacrocoracidae) Herons (Ardeidae) Waders (Charadriidae, Scolopacidae) (since 2017) The following species are also included in the survey: Eurasian coot (Fulica atra) Common moorhen (Gallinula chloropus) (since 2021) Northern gannet (Morus bassanus) (since 2020) All observed individuals of the above mentioned species are counted.

Reino	Animalia (Animals)
Filo	Chordata (Chordates)
Class	Aves (Birds)

Cobertura temporal

Fecha Inicial / Fecha Final	1966-01-16 / 2023-02-27

Datos del proyecto

No hay descripción disponible

Título	Svensk Fågeltaxering
Fuentes de Financiación	The Swedish Environmental Protection Agency supports the Swedish Bird Survey.
Descripción del área de estudio	Sweden

Personas asociadas al proyecto:

Åke Lindström

Autor

https://orcid.org/0000-0002-5597-6209

Martin Green

Autor

Fredrik Haas

Autor

Métodos de muestreo

Three different methods can be used to survey a counting sector: surveying from land, boat or aeroplane. Surveying from land is the standard and most commonly used method. For large counting sectors the surveyor has to use multiple vantage points. Ideally the whole sector should be scanned for birds, but in many cases this is not possible due to parts being e.g. obscured by islands or unreachable for other reasons. In periods, boat-based counts have been carried out to cover areas not visible from land. To cover large areas not visible from the mainland, aerial surveys with professional observers have occasionally been conducted. Regardless of method, all observed individuals of the species included in the survey should be counted. The surveyed counting sectors vary in size from 0,01 to 300 km2.

Área de Estudio	Geography and habitat: All observations are registered on counting sectors. The entire Swedish coastline is divided into ca 3100 such sectors, ca 2300 of which have been surveyed in January. In the inland, small lakes become sectors of their own while large lakes, as well as streams and rivers, are each split into several sectors. At present almost 1400 inland sectors have been surveyed in January. It is possible for surveyors to create new inland counting sectors, as well as start previously not surveyed coastal sectors, provided the intention is to survey them for several years. The waterbird census in January and September are using the same system of counting sectors. Timing and frequency: The survey should in general be carried out once in the middle of January, but a sector is allowed to be censused more than once in a given year if different methods are used (see below). The exact survey dates are decided and notified by the project management every year. The time taken to survey a sector depends on the size of the sector and on the abundance and distribution of birds.
Control de Calidad	Data is checked and validated by the project leaders, specifically species identity, numbers and geographical location. Confidence in the data is good.

Área de Estudio

Geography and habitat: All observations are registered on counting sectors. The entire Swedish coastline is divided into ca 3100 such sectors, ca 2300 of which have been surveyed in January. In the inland, small lakes become sectors of their own while large lakes, as well as streams and rivers, are each split into several sectors. At present almost 1400 inland sectors have been surveyed in January. It is possible for surveyors to create new inland counting sectors, as well as start previously not surveyed coastal sectors, provided the intention is to survey them for several years. The waterbird census in January and September are using the same system of counting sectors. Timing and frequency: The survey should in general be carried out once in the middle of January, but a sector is allowed to be censused more than once in a given year if different methods are used (see below). The exact survey dates are decided and notified by the project management every year. The time taken to survey a sector depends on the size of the sector and on the abundance and distribution of birds.

Control de Calidad

Data is checked and validated by the project leaders, specifically species identity, numbers and geographical location. Confidence in the data is good.

Descripción de la metodología paso a paso:

See sampling description.

Referencias bibliográficas

Gaget, E., Ovaskainen, O., Bradter, U., Haas, F., Jonas, L., Johnston, A., Langendoen, T., Lehikoinen, A. S., Pärt, T., Pavón-Jordán, D., Sandercock, B. K., Soultan, A. & Brommer, J. E., 2024. Changes in waterbird occurrence and abundance at their northern range boundaries in response to climate warming: importance of site area and protection status. (E-pub ahead of print) In: Animal Conservation.
Gaget, E., Johnston, A., Pavón-Jordán, D., Lehikoinen, A. S., Sandercock, B. K., Soultan, A., Božič, L., Clausen, P., Devos, K., Domsa, C., Encarnação, V., Faragó, S., Fitzgerald, N., Frost, T., Gaudard, C., Gosztonyi, L., Haas, F., Hornman, M., Langendoen, T. & Ieronymidou, C. & 15 others, , 2022. Protected area characteristics that help waterbirds respond to climate warming. Conservation Biology 36, 4.
Gaget, E., Pavón-Jordán, D., Johnston, A., Lehikoinen, A., Hochachka, W. M., Sandercock, B. K., Soultan, A., Azafzaf, H., Bendjedda, N., Bino, T., Božič, L., Clausen, P., Dakki, M., Devos, K., Domsa, C., Encarnação, V., Erciyas-Yavuz, K., Faragó, S., Frost, T. & Gaudard, C. & 30 others, , 2021. Benefits of protected areas for nonbreeding waterbirds adjusting their distributions under climate warming. Conservation Biology 35: 834-845.

Metadatos adicionales

Important information for potential users of the Swedish waterbird census (January) data: 1. The Swedish waterbird census (January) started officially in 1967, but the dataset also contains data from the pilot study in 1966. 2. In 1973 the midwinter count was complemented by a September count of resting migrating birds in the same counting sectors (Swedish Bird Survey: Swedish waterbird count (September)). 3. The data shown in this Darwin core archive are, for each species, the sum of all individuals within the counting sector during a visit. Note that some sectors are surveyed twice, but with different methods, in some years. 4. Null visits and zero observations: Users of the data have to construct zero data for each species themselves. The occurrence table contains observations of species that were actually present at the surveyed sites, but the surveyor would have looked for all species that are included in the survey design. For visits to sites where no observations were made at all (when such null visits exist), the occurrence table also includes one zero observation with vernacularName set to "SpeciesIncludedInSurvey", and occurrenceStatus set to "Absent". This is to ensure that information about surveyor is included in the DwC-A also for these events. Additionally, information about whether a visit is a null visit (i.e. true = no survey species observed) or not (i.e. false = one or more survey species observed) is included in the ”extended measurement or fact table” (noObservations). 5. The coordinates supplied are for the central point of each counting sector.

Propósito	National environmental monitoring of waterbirds.
Identificadores alternativos	https://www.gbif.se/ipt/resource?r=lu_ssij