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.
Enregistrements de données
Les données de cette ressource données d'échantillonnage ont été publiées sous forme d'une Archive Darwin Core (Darwin Core Archive ou DwC-A), le format standard pour partager des données de biodiversité en tant qu'ensemble d'un ou plusieurs tableurs de données. Le tableur de données du cœur de standard (core) contient 30 enregistrements.
3 tableurs de données d'extension existent également. Un enregistrement d'extension fournit des informations supplémentaires sur un enregistrement du cœur de standard (core). Le nombre d'enregistrements dans chaque tableur de données d'extension est illustré ci-dessous.
Cet IPT archive les données et sert donc de dépôt de données. Les données et métadonnées de la ressource sont disponibles pour téléchargement dans la section téléchargements. Le tableau des versions liste les autres versions de chaque ressource rendues disponibles de façon publique et permet de tracer les modifications apportées à la ressource au fil du temps.
Versions
Le tableau ci-dessous n'affiche que les versions publiées de la ressource accessibles publiquement.
Comment citer
Les chercheurs doivent citer cette ressource comme suit:
Sørensen O (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. v1.2. Nord University. Dataset/Samplingevent. Ole Jakob Sorensen
Droits
Les chercheurs doivent respecter la déclaration de droits suivante:
L’éditeur et détenteur des droits de cette ressource est Nord University. Ce travail est sous licence Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0.
Enregistrement GBIF
Cette ressource a été enregistrée sur le portail GBIF, et possède l'UUID GBIF suivante : 07d699bc-469b-4b2d-99a7-363c45fbe325. Nord University publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du GBIF Norway.
Mots-clé
Samplingevent; mousetrapping. Traplines; Population dynamics; Rodentia; Rodents; Mouse; Soricidae; Shrews. Bank Vole; Myodes glareolus; Grey-sided Vole; Myodes rufocanus; Lemming; Lemmus lemmus; Field Vole; Microtus agrestis. Shrews; Soricidae; The Common Shrew; Sorex araneus; Pygmy Shrew; Sorex minutus; Water Shrew; Neomys fodiens.; Samplingevent. Population dynamics. Rodentia; Rodents; Mouse; Soricidae; Shrews. Bank Vole; Myodes glareolus; Grey-sided Vole; Myodes rufocanus; Lemming; Lemmus lemmus; Field Vole; Microtus agrestis. The Common Shrew; Sorex araneus; Pygmy Shrew; Sorex minutus; Water Shrew; Neomys fodiens.
Contacts
- Fournisseur Des Métadonnées ●
- Créateur ●
- Personne De Contact
- Personne De Contact
- Personne De Contact
- Utilisateur
Couverture géographique
The dataset is collected in Steinkjer Municipality - Trondelag County in Norway
| Enveloppe géographique | Sud Ouest [63,917, 11,387], Nord Est [64,171, 11,956] |
|---|
Couverture taxonomique
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).
| Order | Rodentia (Rodents) |
|---|---|
| Family | Soricidae (Shrews) |
Couverture temporelle
| Epoque de formation | 2018-2021 |
|---|
Données sur le projet
Traplines with ordinary (killing) mousetraps, baited with raw potatoes, have been placed out with approx. 5 m. distance in 2-3 traplines with 50 or 100 traps for 2 nights in preset transects. The same spots have mainly been used. Mouse and shrews caught have been determined to species, sex, fertility grad and weighed whenever possible. One trapline have been set in an old, natural blueberry and spruce-dominated forest. The other lines have been set in a gras-dominated clearcut field of spruce forest and a young planted regrowth area in the same habitat. The population index have been calculated as N/100 trapnights.
| Titre | Population dynamics of Rodents and Shrews in Steinkjer Municipality, Trondelag, Norway 2018 - 2021 |
|---|---|
| Identifiant | Ole Jakob Sørensen |
| Financement | The study have been funded by: Nord University and North-Trondelag University College. The County Governor of Nord-Trondelag Nord-Trondelag County Municipality The Norwegian Ministry of Climate and Environment; Directorate for Nature Management. |
| Description du domaine d'étude / de recherche | One trap line has been in old, natural spruce and blueberry dominated forest with a mix of pine and birch situated approx. 200 masl. The other tarpping lines have partly been a young, 3-5 m high and partly dense regrowth forest of spruce mixed with birch, and partly on a new clearcut domiated with grass and at the time no regrowth of trees. Both areas are near each other at approx. 50 masl and originally a spruce dominated blueberry forest. |
| Description du design | Traps have been set out at approx. 5 m. distance and baited with raw potatoes at predecided, marked spots. The catch have mainly been done by students under teatchers supervision. Mouse and shrews are identified to species, sex, age, weight and fertility. A population index have been calculated as N/mouse pr. 100 trapnights. |
Les personnes impliquées dans le projet:
- Fournisseur Des Métadonnées
- Créateur
Méthodes d'échantillonnage
Given earlier
| Etendue de l'étude | 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. |
|---|---|
| Contrôle qualité | The species identification and data for each cach is formally identfied/confirmed by Ole. J. Sørensen and Bjørn-Roar Hagen |
Description des étapes de la méthode:
- 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.
Données de collection
| Nom de la collection | Database as excel-files on the catches 2018-2021 |
|---|---|
| Identifiant de collection | Ole Jakob Sørenen |
| Méthode de conservation des spécimens | No treatment |
|---|
Citations bibliographiques
- 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.
Métadonnées additionnelles
| Identifiants alternatifs | 07d699bc-469b-4b2d-99a7-363c45fbe325 |
|---|---|
| https://ipt.gbif.no/resource?r=rodents_steinkjer |