DOI: 10.5061/dryad.stqjq2c82
title: Area of habitat maps for Italian bumblebees

description: Area of habitat (AOH) maps show the distribution of the habitat available
 to the species within their geographic range and altitude limits.
 Information on the distribution of species’ habitats can be implemented to
 investigate biogeographical patterns, as well as to identify potential Key
 Biodiversity Areas. We produced high resolution global area of habitat
 maps for 28 species and subspecies of bumblebees occurring in Italy. The
 maps can be used as a reference for conservation planning and can help
 monitoring habitat loss.
description: We obtained occurrence points for 28
 bumblebees (23 species and 5 subspecies) from the Atlas of European bees
 (Rasmont 2015). We derived a distribution range for each species from its
 occurrence points using the freely accessible map ‘Admin-1 State and
 provinces' of the Natural Earth database (nauralearthdata.com). The map contains data on internal first order administrative boundaries worldwide, with a resolution of 1:10m. We performed an intersection between the species occurrence points and the administrative boundaries map, retaining only the regions of the map intersected by the species occurrence points. We linked the species to their natural habitat using Copernicus Global Land Service Land Cover (CGLS-LC100) 2019 classes as a habitat surrogate. Species-Habitat associations and altitude limits were based on the current knowledge of the biology of target species, as referenced in scientific literature and species datasets. A binary classification was compiled to link species habitat  to land cover classes. Altitude limits (minimum and maximum) were compiled for each species. The CGLS-LC100 map was combined with altitude information from the Shuttle Radar Topography Mission (USGS EROS Archive 2019) to produce a base map. We used the species ranges to mask the area of the base map which is found out of the species range. The base map was reclassified according to species' habitat requirements to produce the AOH maps.
description: # Area of habitat maps for Italian bumblebees
 Contact information: Dario
 Nania, Sapienza University of Rome email: 
 ## Description of the data and file structure Dataset description: The
 dataset contains Area of habitat (AOH) maps for 28 bumblebees (23 species
 and 5 subspecies) occurring in Italy. The maps reveal the geographic
 distribution of the species habitat within their global range. Each map is
 available in GeoTIFF format. Raster pixel values are equal to 0 if they
 fall within the distribution range but do not represent available habitat
 for the species. Pixel values are equal to 1 if they represent available
 habitat for the species withi its distribution range. Methods description:
 We obtained occurrence points for 28 bumblebees (23 species and 5
 subspecies) from the Atlas of European bees (Rasmont 2015). We derived a
 distribution range for each species from its occurrence points using the
 freely accessible map ‘Admin-1 State and provinces' of the Natural
 Earth database (nauralearthdata.com). The map contains data on internal
 first order administrative boundaries worldwide, with a resolution of
 1:10m. We performed an intersection between the species occurrence points
 and the administrative boundaries map, retaining only the regions of the
 map intersected by the species occurrence points. We linked the species to
 their natural habitat using Copernicus Global Land Service Land Cover
 (CGLS-LC100) 2019 classes as a habitat surrogate. Species-Habitat
 associations and altitude limits were based on the current knowledge of
 the biology of target species, as referenced in scientific literature and
 species datasets. A binary classification was compiled to link species
 habitat  to land cover classes. Altitude limits (minimum and maximum) were
 compiled for each species. The CGLS-LC100 map was combined with altitude
 information from the Shuttle Radar Topography Mission (USGS EROS Archive
 2019) to produce a base map. We used the species ranges to mask the area
 of the base map which is found out of the species range. The base map was
 reclassified according to species' habitat requirements to produce
 the AOH maps. Dataset files: Bombus_alpinus_helleri.tif
 Bombus_argillaceus.tif Bombus_barbutellus.tif Bombus_bohemicus.tif
 Bombus_brodmannicus_delmasi.tif Bombus_campestris.tif Bombus_cryptarum.tif
 Bombus_flavidus.tif Bombus_gerstaeckeri.tif Bombus_inexspectatus.tif
 Bombus_konradini.tif Bombus_lapidarius.tif Bombus_lucorum_aritzoensis.tif
 Bombus_mendax.tif Bombus_mesomelas.tif Bombus_monticola_alpestris.tif
 Bombus_monticola_mathildis.tif Bombus_mucidus.tif Bombus_norvegicus.tif
 Bombus_pratorum.tif Bombus_pyrenaeus.tif Bombus_quadricolor.tif
 Bombus_ruderatus.tif Bombus_rupestris.tif Bombus_subterraneus.tif
 Bombus_sylvestris.tif Bombus_vestalis.tif Bombus_wurflenii.tif