Topsoil properties and abundance of Acari and Collembola species in northern Victoria Land, Antarctica
Fuente:
PANGAEA
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
2007
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1867168561303126016 |
|---|---|
| author | Caruso, Tancredi Borghini, Francesca Bucci, Charlie Colacevich, Andrea Bargagli, Roberto |
| author_facet | Caruso, Tancredi Borghini, Francesca Bucci, Charlie Colacevich, Andrea Bargagli, Roberto |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Soil fauna in the extreme conditions of Antarctica consists of a few microinvertebrate species patchily distributed at different spatial scales. Populations of the prostigmatic mite Stereotydeus belli and the collembolan Gressittacantha terranova from northern Victoria Land (Antarctica) were used as models to study the effect of soil properties on microarthropod distributions. In agreement with the general assumption that the development and distribution of life in these ecosystems is mainly controlled by abiotic factors, we found that the probability of occurrence of S. belli depends on soil moisture and texture and on the sampling period (which affects the general availability of water); surprisingly, none of the analysed variables were significantly related to the G. terranova distribution. Based on our results and literature data, we propose a theoretical model that introduces biotic interactions among the major factors driving the local distribution of collembolans in Antarctic terrestrial ecosystems. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_786598 |
| institution | PANGAEA |
| language | en |
| publishDate | 2007 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Topsoil properties and abundance of Acari and Collembola species in northern Victoria Land, Antarctica Caruso, Tancredi Borghini, Francesca Bucci, Charlie Colacevich, Andrea Bargagli, Roberto International Polar Year (2007-2008); ipy; IPY Soil fauna in the extreme conditions of Antarctica consists of a few microinvertebrate species patchily distributed at different spatial scales. Populations of the prostigmatic mite Stereotydeus belli and the collembolan Gressittacantha terranova from northern Victoria Land (Antarctica) were used as models to study the effect of soil properties on microarthropod distributions. In agreement with the general assumption that the development and distribution of life in these ecosystems is mainly controlled by abiotic factors, we found that the probability of occurrence of S. belli depends on soil moisture and texture and on the sampling period (which affects the general availability of water); surprisingly, none of the analysed variables were significantly related to the G. terranova distribution. Based on our results and literature data, we propose a theoretical model that introduces biotic interactions among the major factors driving the local distribution of collembolans in Antarctic terrestrial ecosystems. |
| title | Topsoil properties and abundance of Acari and Collembola species in northern Victoria Land, Antarctica |
| topic | International Polar Year (2007-2008); ipy; IPY |
| url | https://doi.org/10.1594/PANGAEA.786598 |