Microhabitats: macro-differences. A survey of temperature records in Victoria Land terrestrial and freshwater environments

Cucini, Claudio; Nardi, Francesco; Magnoni, Letizia; Rebecchi, Lorena; Guidetti, Roberto; Convey, Peter ORCID: https://orcid.org/0000-0001-8497-9903; Carapelli, Antonio. 2022 Microhabitats: macro-differences. A survey of temperature records in Victoria Land terrestrial and freshwater environments. Antarctic Science, 34 (3). 256-265. 10.1017/S0954102022000050

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Official URL: https://www.cambridge.org/core/journals/antarctic-...

Abstract/Summary

The temperature experienced by micro-invertebrates in extreme environments (such as those of Antarctica) is a pivotal parameter regarding these animals' ecology and physiology. However, at present, detailed knowledge of microhabitat physical conditions in Antarctica is limited, as well as being biased towards sub-Antarctic and Maritime Antarctic regions. To better understand the temperature conditions experienced in the microhabitats of Continental Antarctica by the native microfauna, we recorded temperatures year round in ponds and soils in an area of the Victoria Land coast and compared these measurements with air temperature data from the closest automatic weather station. We identified an important difference in temperature dynamics between the air, soil and pond datasets. Ponds were the warmest sites overall, differing by up to 7.5°C in comparison with the air temperature due to their greater thermal capacity, which also drove their patterns of freeze-thaw cycles and mean daily thermal excursion.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1017/S0954102022000050
ISSN:	0954-1020
Additional Keywords:	Antarctica, Acari, Collembola, Tardigrada, Rotifera
Date made live:	25 Mar 2022 14:45 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/531950

Item Type:

Publication - Article

Digital Object Identifier (DOI):

10.1017/S0954102022000050

ISSN:

0954-1020

Additional Keywords:

Antarctica, Acari, Collembola, Tardigrada, Rotifera

Date made live:

25 Mar 2022 14:45 +0 (UTC)

URI:

https://nora.nerc.ac.uk/id/eprint/531950