https://researchdata.se/en/catalogue Search results en Ájtte Museum is one of the museums in Sweden that actively works with the collection and preservation of natural history material. The purpose of the collection is to build a special collection with the overall heading: "nature of the mountains". The collected material includes birds, mammals, fish, fungi, minerals, rocks and botanicals. The material constituting the Natural history collections are donated by private persons, the police (“state wildlife”) and other museums and institutions. In addition, the museum also conducts its own active collection activities. Currently, the museum holds over 19,000 natural history objects in its database /collection. The collections are searchable in the museum common database: http://collections.ajtte.com/ and thus accessible to researchers, students and other interested but also useful for educational purposes. The collections are stored in climate-controlled archives so that they can be preserved in a safe and secure way for the future. Our goal is that these unique collections will come to attention of the special interest researcher and be a resource to taxonomic and morphological studies on the species of Northern Sweden. The insect collections are the largest part of the natural history collections of Ájtte museum, with more than 14,500 specimens, mainly including beetles and butterflies with a northern provenance. The beetles (Coleoptera) of this collection were donated by Sven-Erik Nilsson’s estate (2003). The butterflies (Lepidoptera) are from the Jokkmokk area and consists of approximately 1 200 specimens belonging to 400 different species, and was donated by Roger Engelmark (Professor Emeritus, University of Umeå). The museum's collection of reindeers (Rangifer tarandus) is very extensive, perhaps the world's largest. The collection consists of osteological material with over 1 000 skulls, with antlers and jaws from both adult and young animals of both sexes. This well-documented material of reindeer has been collected from the whole Swedish range of distribution. The collection was previous held by the Swedish Museum of Natural History, but in 2010 it was taken over by Ájtte museum. The material was collected by the researcher Folke Skuncke during the middle of the 19th century. Thu, 14 Nov 2013 00:00:00 GMT https://researchdata.se/en/catalogue/dataset/gbif-sweden-10-15468-eoika6 https://researchdata.se/en/catalogue/dataset/gbif-sweden-10-15468-eoika6 Swedish Mountain and Sami Museum Göran Sjöberg Our study assessed ground-lichen responses, measured at plots of ca. one m² in size, to reindeer grazing pressure. Our study area is ca. 14 000 km² in size and is in Finnmark, Northern Norway. The study was initiated in 1998, and the same plots were re-visited in 2005, 2010, 2013, and 2018. This study is part of a long-term monitoring program of the lichen pastures in Norway. The data sets include information about ground-lichen biomass (g per m²), volume (L per m²), cover (%), and height (mm), which were our responses. The key predictors consisted of experimental manipulation, reindeer density (individuals per km²), initial conditions (i.e., the observed values for a given response in 1998), and habitat (Forest- and leeward-heath vs. exposed ridges mountain heaths). The experimental manipulation allowed us to compare plots exposed to grazing and trampling by reindeer and other larger herbivores (control) to fenced (treatment) areas. In addition, we included several spatial and temporal variables acting as potential random effects in our mixed effects models: district, transect, block and year (we provide additional information about the data and the analyses in the published article). Thu, 16 Jan 2025 15:17:42 GMT https://researchdata.se/en/catalogue/dataset/2024-610 https://researchdata.se/en/catalogue/dataset/2024-610 Norwegian Institute for Nature Research - NINA Bård-Jørgen Bårdsen Hans Tømmervik Marius Warg Næss Jarle Werner Bjerke