Descripción
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.
Registros
Los datos en este recurso de evento de muestreo han sido publicados como Archivo Darwin Core(DwC-A), el cual es un formato estándar para compartir datos de biodiversidad como un conjunto de una o más tablas de datos. La tabla de datos del core contiene 30 registros.
también existen 3 tablas de datos de extensiones. Un registro en una extensión provee información adicional sobre un registro en el core. El número de registros en cada tabla de datos de la extensión se ilustra a continuación.
Este IPT archiva los datos y, por lo tanto, sirve como repositorio de datos. Los datos y los metadatos del recurso están disponibles para su descarga en la sección descargas. La tabla versiones enumera otras versiones del recurso que se han puesto a disposición del público y permite seguir los cambios realizados en el recurso a lo largo del tiempo.
Versiones
La siguiente tabla muestra sólo las versiones publicadas del recurso que son de acceso público.
¿Cómo referenciar?
Los usuarios deben citar este trabajo de la siguiente manera:
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
Derechos
Los usuarios deben respetar los siguientes derechos de uso:
El publicador y propietario de los derechos de este trabajo es Nord University. Esta obra está bajo una licencia Creative Commons de Atribución/Reconocimiento-NoComercial (CC-BY-NC 4.0).
Registro GBIF
Este recurso ha sido registrado en GBIF con el siguiente UUID: 07d699bc-469b-4b2d-99a7-363c45fbe325. Nord University publica este recurso y está registrado en GBIF como un publicador de datos avalado por GBIF Norway.
Palabras clave
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.
Contactos
- Proveedor De Los Metadatos ●
- Originador ●
- Punto De Contacto
- Punto De Contacto
- Punto De Contacto
- Usuario
Cobertura geográfica
The dataset is collected in Steinkjer Municipality - Trondelag County in Norway
| Coordenadas límite | Latitud Mínima Longitud Mínima [63,917, 11,387], Latitud Máxima Longitud Máxima [64,171, 11,956] |
|---|
Cobertura taxonómica
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).
| Orden | Rodentia (Rodents) |
|---|---|
| Familia | Soricidae (Shrews) |
Cobertura temporal
| Periodo de formación | 2018-2021 |
|---|
Datos del proyecto
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.
| Título | Population dynamics of Rodents and Shrews in Steinkjer Municipality, Trondelag, Norway 2018 - 2021 |
|---|---|
| Identificador | Ole Jakob Sørensen |
| Fuentes de Financiación | 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. |
| Descripción del área de estudio | 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. |
| Descripción del diseño | 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. |
Personas asociadas al proyecto:
- Proveedor De Los Metadatos
- Originador
Métodos de muestreo
Given earlier
| Área de Estudio | 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. |
|---|---|
| Control de Calidad | The species identification and data for each cach is formally identfied/confirmed by Ole. J. Sørensen and Bjørn-Roar Hagen |
Descripción de la metodología paso a paso:
- 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.
Datos de la colección
| Nombre de la Colección | Database as excel-files on the catches 2018-2021 |
|---|---|
| Identificador de la Colección | Ole Jakob Sørenen |
| Métodos de preservación de los ejemplares | Ningún tratamiento |
|---|
Referencias bibliográficas
- 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.
Metadatos adicionales
| Identificadores alternativos | 07d699bc-469b-4b2d-99a7-363c45fbe325 |
|---|---|
| https://ipt.gbif.no/resource?r=rodents_steinkjer |