Supercooling points of insects and mites on the Antarctic Peninsula
Abstract. 1. Mean supercooling points of eleven species of arthropods (three Collembola, seven Acari and one Diptera) ranged from ‐6.2 to ‐9.4°C (high group), and from ‐17.7 to ‐31.0°C (low group). The majority of individuals in the high group had food in their gut systems. 2. Freezing was lethal to...
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crwiley:10.1111/j.1365-2311.1982.tb00638.x 2024-06-02T07:58:17+00:00 Supercooling points of insects and mites on the Antarctic Peninsula BLOCK, WILLIAM 1982 http://dx.doi.org/10.1111/j.1365-2311.1982.tb00638.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2311.1982.tb00638.x http://onlinelibrary.wiley.com/wol1/doi/10.1111/j.1365-2311.1982.tb00638.x/fullpdf en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ecological Entomology volume 7, issue 1, page 1-8 ISSN 0307-6946 1365-2311 journal-article 1982 crwiley https://doi.org/10.1111/j.1365-2311.1982.tb00638.x 2024-05-03T11:09:11Z Abstract. 1. Mean supercooling points of eleven species of arthropods (three Collembola, seven Acari and one Diptera) ranged from ‐6.2 to ‐9.4°C (high group), and from ‐17.7 to ‐31.0°C (low group). The majority of individuals in the high group had food in their gut systems. 2. Freezing was lethal to all species examined except larval Belgica antarctica Jacobs (Chironomidae). 3. Glucose, glycerol and mannitol were found in low concentrations in extracts of Ctyptopygus antarcticus Willem (Collembola) and larvae of B. antarcrica; it is udikely that these substances had a major effect on the supercooling of either species. 4. Two Collembola species possessed significantly ( P< 0.05) lower supercooling points at locations on the Antarctic Pensinsula than at Signy Island, South Orkney Islands. The converse was observed for two species of Acari. 5. It is suggested that whilst gross climatic and also micro‐habitat conditions may influence the cold hardiness of such arthropods, especially seasonally, their full supercooling ability is rarely tested. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica antarcticus Belgica antarctica Signy Island South Orkney Islands Wiley Online Library Antarctic Antarctic Peninsula Signy Island ENVELOPE(-45.595,-45.595,-60.708,-60.708) South Orkney Islands ENVELOPE(-45.500,-45.500,-60.583,-60.583) The Antarctic Ecological Entomology 7 1 1 8 |
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Wiley Online Library |
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crwiley |
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English |
description |
Abstract. 1. Mean supercooling points of eleven species of arthropods (three Collembola, seven Acari and one Diptera) ranged from ‐6.2 to ‐9.4°C (high group), and from ‐17.7 to ‐31.0°C (low group). The majority of individuals in the high group had food in their gut systems. 2. Freezing was lethal to all species examined except larval Belgica antarctica Jacobs (Chironomidae). 3. Glucose, glycerol and mannitol were found in low concentrations in extracts of Ctyptopygus antarcticus Willem (Collembola) and larvae of B. antarcrica; it is udikely that these substances had a major effect on the supercooling of either species. 4. Two Collembola species possessed significantly ( P< 0.05) lower supercooling points at locations on the Antarctic Pensinsula than at Signy Island, South Orkney Islands. The converse was observed for two species of Acari. 5. It is suggested that whilst gross climatic and also micro‐habitat conditions may influence the cold hardiness of such arthropods, especially seasonally, their full supercooling ability is rarely tested. |
format |
Article in Journal/Newspaper |
author |
BLOCK, WILLIAM |
spellingShingle |
BLOCK, WILLIAM Supercooling points of insects and mites on the Antarctic Peninsula |
author_facet |
BLOCK, WILLIAM |
author_sort |
BLOCK, WILLIAM |
title |
Supercooling points of insects and mites on the Antarctic Peninsula |
title_short |
Supercooling points of insects and mites on the Antarctic Peninsula |
title_full |
Supercooling points of insects and mites on the Antarctic Peninsula |
title_fullStr |
Supercooling points of insects and mites on the Antarctic Peninsula |
title_full_unstemmed |
Supercooling points of insects and mites on the Antarctic Peninsula |
title_sort |
supercooling points of insects and mites on the antarctic peninsula |
publisher |
Wiley |
publishDate |
1982 |
url |
http://dx.doi.org/10.1111/j.1365-2311.1982.tb00638.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2311.1982.tb00638.x http://onlinelibrary.wiley.com/wol1/doi/10.1111/j.1365-2311.1982.tb00638.x/fullpdf |
long_lat |
ENVELOPE(-45.595,-45.595,-60.708,-60.708) ENVELOPE(-45.500,-45.500,-60.583,-60.583) |
geographic |
Antarctic Antarctic Peninsula Signy Island South Orkney Islands The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Signy Island South Orkney Islands The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica antarcticus Belgica antarctica Signy Island South Orkney Islands |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica antarcticus Belgica antarctica Signy Island South Orkney Islands |
op_source |
Ecological Entomology volume 7, issue 1, page 1-8 ISSN 0307-6946 1365-2311 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1365-2311.1982.tb00638.x |
container_title |
Ecological Entomology |
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7 |
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1 |
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1 |
op_container_end_page |
8 |
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1800741583963815936 |