Invertebrate diversity and succession along a glacier chronosequence in Svalbard (Midtre Lovénbre)

Registros

Los datos en este recurso de registros biológicos 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 834 registros.

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:

Graf P R, Danielson Damne S, Müller Y C J, Lundin N, Madslien Steinhaug O (2026). Invertebrate diversity and succession along a glacier chronosequence in Svalbard (Midtre Lovénbre). Version 1.3. The University Centre in Svalbard. Occurrence dataset. https://ipt.gbif.no/resource?r=glacier_invertebrates2026&v=1.3

Derechos

Los usuarios deben respetar los siguientes derechos de uso:

El publicador y propietario de los derechos de este trabajo es The University Centre in Svalbard. Esta obra está bajo una licencia Creative Commons de Atribución/Reconocimiento (CC-BY 4.0).

Registro GBIF

Este recurso ha sido registrado en GBIF con el siguiente UUID: 8141b86d-05e3-4606-a731-a584ed29af01.  The University Centre in Svalbard publica este recurso y está registrado en GBIF como un publicador de datos avalado por GBIF Norway.

Palabras clave

Occurrence; Observation

Contactos

Cobertura geográfica

Midtre Lovénbreen - Ny-Ålesund - Svalbard - Norway

Cobertura temporal

Datos del proyecto

No hay descripción disponible

Personas asociadas al proyecto:

Métodos de muestreo

A 20 by 30 meter area was marked in the terrain using the site coordinates as the south-west corner. Six points were randomly chosen. Especially at the sites closer to the glacier, the ground mostly consisted of rocks. To acquire soil samples of good quality a patch that seemed to contain organic soil was chosen. A 10x10 square of soil, approximately 5 cm deep, was dug out using a knife and a spade. The samples were transferred a labeled plastic bags. Invertebrate soil samples were stored in the fridge until further processing. The Berlese-Tullgren funnel method , was used to extract the invertebrates (D.A. Crossley Jr., John M. Blair 1991). Tubes with 96% ethanol were labeled and attached to the funnel. The samples were transferred into a metal container with a sieve in the bottom, with the vegetation facing downwards on the funnel. The container was then placed under a lightbulb. The 25 W light was turned on for 72 hours, causing the invertebrates to move away from light and heat from the lightbulb, fall through the sieve, into the funnel and then into the tube with ethanol. The extracted invertebrates were transferred to a petri dish. To ensure that all individuals had been transferred, the tube was rinsed with ethanol. The invertebrates were then sorted according to taxonomic group and counted. To ensure that no individuals were missed, each Petri dish was checked by a colleague before the process was completed. Due to the highly time-consuming process of taxonomic classification, not all individuals were identified down to family level. Nematoda were identified at phylum level. Insecta and insecta larvae were identified at class level. Collembola and Araneae were identified at order level. Acari of the orders Mesostigmata, Trombidiformes and Sarcoptiformes were identified at order level. Acari of the suborder Orbatida were identified at family level.

Descripción de la metodología paso a paso:

1. Field protocol : 1) Site selection using pre-existing coordinates from Hodkinson et al. for 8 sites at Midtre Lovénbren. Sites 2 and 4 were not sampled. The coordinates represent the S-W corner of site areas of 20 m (toward north) × 30 m (toward east). 2) Plot selection : 6 plots per transect with 6 m distance between each plot (west to east). 5 transects with 5 m distance from each other from south to north. 3) Soil sampling : at a radius of 1 m from each plot, patches containing soil/plants (when present) were selected. Blocks of 10 × 10 × 5 cm were dug out and put in plastic bags. 4) Storage of samples : in labelled plastic bags on site ; put in a refrigerator (2 to 4°C) until laboratory analyses. Invertebrate analysis: 1) Berlese-Tullgren funnel method was used to extract the invertebrates (BS000290 Tullgren-Funnel, 12 Bank from Burkard Scientific was used): - Tubes with 96% ethanol were labelled and attached to the funnel. - The samples were transferred into a metal container with a sieve in the bottom, with the vegetation facing downwards on the funnel. - The container was placed under a lightbulb. - The 25 W light was turned on for 72 hours. 2) The extracted invertebrates were transferred to a petri dish. 3) The tube was rinsed with ethanol. 4) The invertebrates were then sorted according to taxonomic group and counted 5) Each Petri dish was checked by a colleague before the process was completed.

Metadatos adicionales