The dataset consists of classified images from small mammal camera traps. The images are processed using the semi-automatic workflow established by Böhner et al. (2023). We use a pre-trained machine learning algorithm to automatically classify all images. Images classified with low confidence or from species/species groups that are challenging are manually annotated. Abundance indices can be estimated following temporal and spatial aggregation of detection events following Kleiven et al. 2023.
Data have been standardized to Darwin Core using the camtrapdp R package and only include observations (and associated media) of animals. Excluded are records that document blank or unclassified media, vehicles and observations of humans.
","language":"eng","citation":{"text":"Flittie Kleiven E, Böhner H, Framstad E, M. Soininen E, Anker Ims R, E. Eide N (2025). Camera trap based small rodent monitoring: Data from Norwegian alpine tundra. Norwegian Institute for Nature Research. Occurrence dataset https://doi.org/10.15468/avmbdq accessed via GBIF.org on 2026-10-14.","citationProvidedBySource":false},"contactsCitation":[{"key":6427293,"abbreviatedName":"Flittie Kleiven E","firstName":"Eivind","lastName":"Flittie Kleiven","roles":["ORIGINATOR","METADATA_AUTHOR"],"userId":["https://orcid.org/0000-0002-9556-0195"]},{"key":6427294,"abbreviatedName":"Böhner H","firstName":"Hanna","lastName":"Böhner","roles":["ORIGINATOR"],"userId":["https://orcid.org/0000-0002-9556-0195"]},{"key":6427295,"abbreviatedName":"Framstad E","firstName":"Erik","lastName":"Framstad","roles":["ORIGINATOR"],"userId":[]},{"key":6427296,"abbreviatedName":"M. Soininen E","firstName":"Eeva","lastName":"M. 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Animals are unmarked and camera traps are triggered with activity detection and time lapse.","relatedProjects":[],"abstract":"Small rodents are a key species with strong impact on plants, herbivores and predators in the alpine tundra food-web. In 2023 the Norwegian Institute for Nature Research established a national monitoring program for small rodents based on camera trap in the Alpine Tunda on behalf of the Norwegian Environmental Agency. The program in based on the tunnel camera traps, developed specifically to monitor small rodents on the tundra year round. The trap is described in detail by Soininen et al. (2015). From the initiation of the program monitoring were established in Finse, Snøhetta, Børgefjell, Joatka and Komagdalen. In each mountain area we cover the most important habitat for small rodents (heath, hummock mire and snowbed) and two alpine zones (low and mid alpine zone). See Kleiven et. al. 2022 for further details about the monitoring program."},"countryCoverage":[],"collections":[],"dataDescriptions":[],"pubDate":"2025-12-02T00:00:00.000+00:00","maintenanceUpdateFrequency":"UNKNOWN","maintenanceDescription":"","license":"http://creativecommons.org/licenses/by/4.0/legalcode","dwca":{"coreType":"http://rs.tdwg.org/dwc/terms/Occurrence","extensions":["http://rs.tdwg.org/ac/terms/Multimedia"],"modified":"2025-12-08T07:59:38.048+00:00"},"approximateCounts":{"occurrenceCount":306997}}