HandleidingSDMaps: Creating distribution maps from monitoring data and casual observations

Bird monitoring data are a very good of information to create distribution maps. Creating reliable maps from monitoring data and casual observations requires the use of advanced (geo-)statistical software. For this purpose we have developed SDMaps (formerly known as TRIMmaps). SDMaps is developed as a suite of scripts in the R-statistical language. The programme is still full in development, but can already be downloaded and used for distribution modeling. Downloads: Zip-file SDMaps: https://s1.sovon.nl/zip/sdmaps.zip. This zip-file (130 Mb) contains the SDMaps-programme with manual and examples. Additional material: https://s1.sovon.nl/zip/sdmaps_additional.zip.