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

Sampling event
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The poulation cycles of small rodents and shrews in Lierne Municipality, Trondelag county in Norway have been followed during the years 2018-2021. Population index based on the same traplines and 3 times a year is investigated for the species: The Bank Vole (Myodes/Chletrionomys glareolus; The Grey-Backed Vole (M. rufocanus), The Field Vole (Microtus agrestis, The Wood Lemming (Myopus schisticolor) and Lemming (Lemmus lemmus). Here is presented the data for 2018-2021. Data also includes catches of the Common Shrew (Sores araneus), Pygmy Shrew (S. minutu) and Water Shrew (Neomys fodiens).


此資源sampling event的資料已發佈為達爾文核心集檔案(DwC-A),其以一或多組資料表構成分享生物多樣性資料的標準格式。 核心資料表包含 48 筆紀錄。

亦存在 3 筆延伸集的資料表。延伸集中的紀錄補充核心集中紀錄的額外資訊。 每個延伸集資料表中資料筆數顯示如下。

Event (核心)

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Sørensen O J, Hagen B (2022): Population research on small rodents (Rodentia) and shrews (Soricidae) in Lierne Municipality – Norway; 2018-2021 based on systematic catches with ordinary mouse traps in traplines. v1.2. Nord University. Dataset/Samplingevent. https://ipt.gbif.no/resource?r=rodents&v=1.2



此資料的發布者及權利單位為 Nord University。 This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC 4.0) License.


此資源已向GBIF註冊,並指定以下之GBIF UUID: b5390d05-5699-4c46-a8a4-1b12aa2aac5b。  Nord University 發佈此資源,並經由GBIF Norway同意向GBIF註冊成為資料發佈者。


Occurrence; Small Rodents; Shrews; Population cycles; Rodentia; Soricidae. Myodes glareolus; Myodes rufocanus; Microtus agrestis; Lemmus lemmus; Myopus schisticolor; Sorex araneus; Sorex minutus; Neomys fodiens.; Samplingevent


Ole Jakob Sørensen
  • 元數據提供者
Docent - emeritus
Nord University, Faculty of Biosciences and Aquaculture, Ecology Research Group
Box 2501
7725 Steinkjer
Trondelag County
Bjørn-Roar Hagen
  • 出處
Assistant professor
Nord. univ. Fac. of biosciences and aquaculture
Box 2501
7725 Steinkjer
Ole Jakob Sørensen
  • 元數據提供者
Docent emeritus
Nord University, Faculty of Biosciences and Aquaculture, Ecology Research Group
Box 2501
7725 Steinkjer
Trondelag County
Pål Fossland Moa
  • 連絡人
Associate professor
Nord univeristy; Fac. of Biosciences and Aquaculture
Box 2501
7725 Steinkjer
Trondelag County


Lierne Municipality, Norway. The trap-lines are placed in North-boreal spruce dominated forest - one line in an oldgrowth, natural blueberry spruce forest - mixed with birch. The other line in a young, planted spruceforest after clearcutting, partly at the egde of minerotrofe herb-dominated bogs. Altitude approx. 540 masl.

界定座標範圍 緯度南界 經度西界 [64.4, 13.813], 緯度北界 經度東界 [64.41, 13.83]


The catches are aimed on small rodents (Rodentia) and shrews (Soricidae). Main species will be: The Bank Vole (Myodes/Chletrionomys glareolus), The Grey-sided Vole, (M. rufocanus), The Field Vole (Microtus agrestis), The Wood Lemming (Myodes schisticolor), The Lemming (Lemmus lemmus), The Common Shrew (Sorex araneus), The Pygmy Shrew (S. minutus) and The Water Shrew (Neomys fodiens).

Order Rodentia (Rodents)
Family Soricidae (Shrews)


彙整期間 2018 - 2021


The Research collect data on small rodents and shrews in this forested area to follow populations dynamics through the years 1988 - 2021. This part is a follow up research for the years 2018 - 2021 for the same area and traplines.

計畫名稱 https://ipt.gbif.no/manage/resource.do?r=rodents
辨識碼 Ole Jakob Sørensen
經費來源 North-Trondelag Regional College. North-Trondelag University College Nord University North Trondelag County Muincipality The Norwegian Environment Agencies
研究區域描述 The study area is in a Northern Boreal Spruce (Picea abies) dominated forest about 540 m-a.s.l. One part of the trapline is in Old-Growth Spruce forest, the other half is in young succession, planted spruce forest after a clearcut from approx. 1960. Vegetation types is given in the dataset but mainly blueberry forest in the oldgrowth and more herb-dominated in the young, cultural forest.
研究設計描述 Trapline with50 mouse traps sat at approx. 5 m. distance, staying out for 2 nights. See: Sampling methods


Ole Jakob Sørensen
  • 元數據提供者


Ordinary mouse traps (for killing mouse) have been put out with 5 m. distance through the two traplines, each with 50 traps, bated with raw potatoes. Traps are with few exceptions out for 2 nights and 3 times a year: Mid June, late July/early August and September/October. The same traplines and trap spots have been used all years.

研究範圍 The study was conducted from 1988 through 2021 and will continue for another year with collection of more detailed data. The approximate coordinates for the trapsites is: N64.24.20 - E13.49.00 in Lierne municipality, Trondelag county, Norway. Habitat is Northern Boreal Spruce forest. One trapline is placed in natural old-growth blueberry-dominated forest. The second trapline is placed in younger succsession cultural spruce forest, edging a richer vegetation and wet, rich minerogen mire. The traplines are located approx. 540 m.a.s.l..
品質控管 Mouse and shrew species are visually determined on spot, aged as adult, subadult and juveniles, weighed and sexed whenever possible.


  1. The results give a total and species specific, population index calculated as Number/100 Catch-Nights. The results will give an comparable index for population cycles over a 35 years period for this area.


蒐藏名稱 Smågnagere og spissmus i Lierne kommune - Trondelag 1988-2021
蒐藏編號 Ole Jakob Sørenen
標本保存方法 No treatment


  1. 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 Nowegian with an English Summary. ISBN 978-82-7456-832-7


替代的識別碼 b5390d05-5699-4c46-a8a4-1b12aa2aac5b