Next Article in Journal
Insight into the Functional Diversification of Lipases in the Endoparasitoid Pteromalus puparum (Hymenoptera: Pteromalidae) by Genome-scale Annotation and Expression Analysis
Previous Article in Journal
Within-Tree Distribution and Survival of the Eucalyptus Longhorned Borer Phoracantha semipunctata (Coleoptera: Cerambycidae) in a Mediterranean-Type Ecosystem
Previous Article in Special Issue
The Chironomidae (Diptera) of Svalbard and Jan Mayen
Open AccessArticle

Changing Microarthropod Communities in Front of a Receding Glacier in the High Arctic

1
Faculty of Forestry, Poznan University of Life Sciences, Wojska Polskiego 71C, 60-625 Poznań, Poland
2
Department of Mathematical and Statistical Methods, Poznan University of Life Sciences, Wojska Polskiego 28, 60-637 Poznań, Poland
3
Institute of Biological Sciences, University Cardinal Stefan Wyszynski, Wóycickiego 1/3, 01-938 Warsaw, Poland
4
Department of Ecology, University of Silesia, Bankowa 9, 40-007 Katowice, Poland
5
Swedish Species Information Centre, Swedish University of Agricultural Sciences, ArtDatabanken, Box 7007, 75007 Uppsala, Sweden
6
Department of Arctic Biology, University Centre in Svalbard, P.O. Box 156, 9171 Longyearbyen, Norway
*
Author to whom correspondence should be addressed.
Insects 2020, 11(4), 226; https://doi.org/10.3390/insects11040226
Received: 5 March 2020 / Revised: 1 April 2020 / Accepted: 1 April 2020 / Published: 5 April 2020
(This article belongs to the Special Issue Polar Entomology)
This study was carried out at Ny-Ålesund on Spitsbergen in Svalbard (High Arctic). Eight study sites were established along a transect from the fjord to the snout of the glacier. The sites differed from each other by the type of vegetation cover and soil characteristics. Soil samples were collected and placed in Tullgren funnels. Extracted arthropods were represented by two groups of mites (Mesostigmata and Oribatida) and springtails (Collembola). The pioneer species that occurred first after retreat of the glacier were representatives of the Collembola (Agrenia bidenticulata and Hypogastrura concolor). Later, other springtails appeared including Folsomia alpha, Folsomia quadrioculata, Hypogastrura concolor, Isotoma anglicana, Sminthurinus concolor and the first species of oribatid mites; Camisia foveolata and Tectocepheus velatus velatus. Arthropod communities recorded along the transect were characterized by large variations in both species composition and abundance of individuals. The greater the distance from the glacier snout, the greater the species richness (2 to 22 species). The mean number of species per sample was the lowest at site 8 (1 ± 0.71) (the closest to the glacier) and greatest at site 1 (14 ± 1.41) (furthest from the glacier). The Simpson’s diversity index (D) was distinctly greater at sites 1 (4.61 ± 0.06) and 3 (3.94 ± 0.11) than at other sites, especially site 8 (1.07 ± 0.06). Densities were least in the samples closest to the glacier (30 to 101 individuals; density 3000–10,100 individuals/m2). At the other locations, abundance was highly variable (905 to 7432 individuals; density 90,500–743,200 individuals/m2). The mean abundances were greatest at sites 2 and 3. The great variations in total abundances observed were often due to the presence or absence of one or more dominant species exhibiting extreme abundance variability between sites. The microarthropod community of the High Arctic is composed of heterogeneous circumpolar species, yet on a landscape scale is extremely dependent on local environmental conditions which may be subject to rapid change. View Full-Text
Keywords: species richness; colonisation; community assembly; dispersal; succession; Spitsbergen species richness; colonisation; community assembly; dispersal; succession; Spitsbergen
Show Figures

Figure 1

MDPI and ACS Style

Gwiazdowicz, D.J.; Zawieja, B.; Olejniczak, I.; Skubała, P.; Gdula, A.K.; Coulson, S.J. Changing Microarthropod Communities in Front of a Receding Glacier in the High Arctic. Insects 2020, 11, 226.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop