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Aggregated counts of Gavia spp. from aerial surveys performed during the spring season between 2001 and 2018 in the German North Sea
Citeerbaar als data publicatie
Vilela, R.; Burger, C.; Diederichs, A.; Szostek, L.; Freund, A.; Braasch, A.; Bellebaum, J.; Beckers, B.; Piper, W.; Nehls, G.; BioConsult SH; IBL Umweltplanung; Institut für Angewandte Ökosystemforschung: Germany; (2021): Aggregated counts of Gavia spp. from aerial surveys performed during the spring season between 2001 and 2018 in the German North Sea. Marine Data Archive. https://doi.org/10.14284/474
Contact: Vilela, Raul
Beschikbaarheid: Creative Commons License Deze dataset valt onder een Creative Commons Naamsvermelding-NietCommercieel 4.0 Internationaal-licentie.
Beschrijving
Gavia spp. count data acquired from aerial surveys performed between 2001 and 2018 during the spring season on the German North Sea. meer

Data was provided by: BioConsult SH GmbH & Co. KG, IBL Umweltplanung GmbH, Institut für angewandte Ökosystemforschung GmbH, and the Federal Agency for Nature Conservation (BfN). For each year, spring (from 1st March until 15th May), aerial data from different sources was aggregated by mesh node (5km resolution) and type of survey: Digital (HiDef, APEM, DAISI) or conventional. Conventional aerial data is already corrected for distance sampling. Data is stored as a "Large SpatialPointsDataFrame" in rds format to be opened using R software.

The ZIP file contains two rds files:

1. diver_counts_2001_2018_spring.rds: the main dataset with the aggregated bird counts.

2. mesh_5km.rds: the spatial mesh used to aggregate the counts. Constrained refined Delaunay triangulation spatial mesh a maximum distance between nodes of 5km covering the German North Sea; to be used as support file to construct the model. Code: readRDS(file="mesh_5km.rds"). Coordinate system: UTM32N (EPSG:32632) "+init=epsg:32632 +proj=utm +zone=32+datum=WGS84 +units=km +no_defs + ellps=WGS84 +towgs84=0,0,0"

Scope
Thema's:
Biologie > Vogels
Kernwoorden:
Marien/Kust, Black-throated loon, Red-throated loon, ANE, Germany, German part of the North Sea, Gavia arctica (Linnaeus, 1758), Gavia stellata (Pontoppidan, 1763)
Geografische spreiding
ANE, Germany, German part of the North Sea [Marine Regions]
Spreiding in de tijd
1 Maart 2001 - 15 Mei 2018
Jaarlijks
Taxonomic coverage
Gavia arctica (Linnaeus, 1758) [WoRMS]
Gavia stellata (Pontoppidan, 1763) [WoRMS]
Parameters
Aantal vogels Methode
Geografische locaties
Aantal vogels: Aerial survey
Bijdrage door
BioConsult SH, meer, data creator, data creator
Vilela, Raul
Burger, Claudia
Diederichs, Ansgar
Nehls, Georg
IBL Umweltplanung, meer, data creator
Szostek, Lesley
Freund, Anika
Braasch, Alexander
Institute for Applied Ecosystem Research (IfAÖ), meer, data creator
Bellebaum, Jochen
Beckers, Brian
Piper, Werner
Publicatie
Gebaseerd op deze dataset
Vilela, R. et al. (2020). Divers (Gavia spp.) in the German North Sea: Changes in abundance and effects of offshore wind farms: A study into diver abundance and distribution based on aerial survey data in the German North Sea: Final Report. Version v1.0. BioConsult SH GmbH & Co. KG/IBL Umweltplanung GmbH/Institut für angewandte Ökosystemforschung GmbH: Husum, Oldenburg, Hamburg. 96 pp., meer
Dataset status: Gestart
Data type: Data
Data oorsprong: Onderzoek: veldonderzoek
Metadatarecord aangemaakt: 2021-04-22
Informatie laatst gewijzigd: 2021-04-27
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