Population research on small rodents (Rodentia) and shrews (Soricidae) in Steinkjer Municipality – Norway; 2018-2021 based on systematic catches with ordinary mouse traps in traplines

Ole Sørensen

doi:10.15468/yvehv7

Population research on small rodents (Rodentia) and shrews (Soricidae) in Steinkjer Municipality – Norway; 2018-2021 based on systematic catches with ordinary mouse traps in traplines

Citation

Sørensen O, Hagen B (2022). Population research on small rodents (Rodentia) and shrews (Soricidae) in Steinkjer Municipality – Norway; 2018-2021 based on systematic catches with ordinary mouse traps in traplines. Version 1.2. Nord University. Sampling event dataset https://doi.org/10.15468/yvehv7 accessed via GBIF.org on 2022-07-05.

Description

The population cycles of small rodents in Steinkjer Municipality, Trøndelag county in Norway have been followed during the years 2018-2021. Population index based on traplines in young forest/clearcut and old natural spruce forest was one time a year (September) for 2018 and 2019 and for 2020-2021 two times a year (May/June and September) investigated mainly for the species: The Bank Vole (Myodes/Clethrionomys glareolus; Grey-Backed Vole (M. rufocanus and Field Vole (Microtus agrestis, but also for other species of small rodents (Rodentia) as the Wood Lemming (Myopus schisticolor) and Lemming (Lemmus lemmus) and different species of Shrews (Soricidae). Here is presented the data for 2018-2021.

Sampling Description

Study Extent

This study is partly a part of a class-program in nature research for the students, but data are also collected to obtain a populations index for small rodents of the area, and also used in several bachelor-thesis where the data are compared with forest grouse density, productiviy and hunter harvests.

Sampling

Given earlier

Quality Control

The species identification and data for each cach is formally identfied/confirmed by Ole. J. Sørensen and Bjørn-Roar Hagen

Method steps

The results of the catches are written into an excel-file that is updated continously after each catch and once a year transformed and published to GBIF.

Taxonomic Coverages

Small Rodents (Rodentia) and Shrews (Soricidae). Mainly the species: Bank Vole, (Myodes/Chletrionomys glareolus), Grey-sided Vole, M. rufocanus), Common Vole, (Microtus arvalis), Lemming (Lemmus lemus), Common Shrew (Sorex araneus), Pygmy Shrew (S. minutus) and Water Shrew ( Neomys fodiens).

Rodentia
common name: Rodents rank: order
Soricidae
common name: Shrews rank: family

Geographic Coverages

The dataset is collected in Steinkjer Municipality - Trondelag County in Norway

Bibliographic Citations

Sørensen, O.J., Moa, P.F. & Hagen, B-R. 2020. Populasjonen av smågnagere (Rodentia) og Spissmus (Soricidae) i Lierne og Steinkjer kommuner 1988 - 2019, og en rekonstruksjon av smågnagerdynamikken i tidligere Nord-Trøndelag 1871-2020. Nord universitet. FoU-Rapprot nr. 65. 1-54. (ISBN 978-82-7456-832-7) In Norwegian with an English Summary. -

Contacts

Ole Sørensen
originator
position: Dosent emeritus
Nord University, Faculty of Biosciences and Aquaculture, Ecology Research Group
Box 2501
Steinkjer
7725
Trondelag County
NO
Telephone: +4791804899
email: ole.j.sorensen@nord.no

Ole Sørensen
metadata author
position: Dosent emeritus
Nord University, Faculty of Biosciences and Aquaculture, Ecology Research Group
Box 2501
Steinkjer
7725
Trondelag County
NO
Telephone: +4791804899
email: ole.j.sorensen@nord.no

Bjørn-Roar Hagen
metadata author
position: Assistant professor
Nord university. Fac. of Biosciences and Aquaculture.
Box 2501
Steinkjer
7725
Trondelag
NO
email: bjorn-roar.hagen@nord.no

Vidar Bakken
user
email: vidar.bakken@usit.uio.no

Ole Sørensen
administrative point of contact
position: Dosent emeritus
Nord University, Faculty of Biosciences and Aquaculture, Ecology Research Group
Box 2501
Steinkjer
7725
Trondelag County
NO
Telephone: +4791804899
email: ole.j.sorensen@nord.no

Bjørn-Roar Hagen
administrative point of contact
position: University lecturer/Assistant professor
Nord university; Fac. of biosciences and aquaculture
Box 2501
Steinkjer
7725
NO
Telephone: 0047-93284425
email: bjron-roar.hagen@nord.no
homepage: http://ww.nord.no