Extreme cold weather causes the collapse of a population of Lambdina fiscellaria (Lepidoptera: Geometridae) in the Laurentian Mountains of Québec, Canada
Abstract In 2012, an unexpected outbreak of Lambdina fiscellaria (Guenée) (Lepidoptera: Geometridae) occurred in the Laurentian Mountains, Québec, Canada, known for its harsh climate. We wondered whether the eggs were sufficiently cold hardy to survive there and, if so, how long this outbreak would...
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Language: | English |
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Online Access: | http://dx.doi.org/10.4039/tce.2019.8 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0008347X19000087 |
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crcambridgeupr:10.4039/tce.2019.8 2023-06-11T04:14:10+02:00 Extreme cold weather causes the collapse of a population of Lambdina fiscellaria (Lepidoptera: Geometridae) in the Laurentian Mountains of Québec, Canada Delisle, Johanne Bernier-Cardou, Michèle Labrecque, Alain 2019 http://dx.doi.org/10.4039/tce.2019.8 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0008347X19000087 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms The Canadian Entomologist volume 151, issue 3, page 311-328 ISSN 0008-347X 1918-3240 Insect Science Molecular Biology Physiology Ecology, Evolution, Behavior and Systematics Structural Biology journal-article 2019 crcambridgeupr https://doi.org/10.4039/tce.2019.8 2023-05-01T18:20:36Z Abstract In 2012, an unexpected outbreak of Lambdina fiscellaria (Guenée) (Lepidoptera: Geometridae) occurred in the Laurentian Mountains, Québec, Canada, known for its harsh climate. We wondered whether the eggs were sufficiently cold hardy to survive there and, if so, how long this outbreak would last. Therefore, we assessed the capacity of the eggs to supercool, to tolerate short exposures to low sub-zero temperatures, or to successfully overwinter in the field. The same assays were performed with eggs from the island of Newfoundland, Newfoundland and Labrador, Canada. The mean supercooling point of eggs from the two populations increased from −40.2 °C in mid-February to −33.7 °C in mid-May. These eggs may also die at sub-zero temperatures above their supercooling point, depending on exposure durations. In the fall of 2012 when eggs were put out in the field, < 10% survived in the Laurentian Mountains, whereas > 70% survived further south. In the spring of 2013, no parasitism was detected in the population. However, the two cold waves that swept across the Laurentian Mountains the preceding winter were likely responsible for the collapse of the population. This study demonstrates that L. fiscellaria eggs may succumb to sub-zero temperatures above their supercooling point under field conditions. Article in Journal/Newspaper Newfoundland Cambridge University Press (via Crossref) Newfoundland Canada The Canadian Entomologist 151 3 311 328 |
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Open Polar |
collection |
Cambridge University Press (via Crossref) |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Insect Science Molecular Biology Physiology Ecology, Evolution, Behavior and Systematics Structural Biology |
spellingShingle |
Insect Science Molecular Biology Physiology Ecology, Evolution, Behavior and Systematics Structural Biology Delisle, Johanne Bernier-Cardou, Michèle Labrecque, Alain Extreme cold weather causes the collapse of a population of Lambdina fiscellaria (Lepidoptera: Geometridae) in the Laurentian Mountains of Québec, Canada |
topic_facet |
Insect Science Molecular Biology Physiology Ecology, Evolution, Behavior and Systematics Structural Biology |
description |
Abstract In 2012, an unexpected outbreak of Lambdina fiscellaria (Guenée) (Lepidoptera: Geometridae) occurred in the Laurentian Mountains, Québec, Canada, known for its harsh climate. We wondered whether the eggs were sufficiently cold hardy to survive there and, if so, how long this outbreak would last. Therefore, we assessed the capacity of the eggs to supercool, to tolerate short exposures to low sub-zero temperatures, or to successfully overwinter in the field. The same assays were performed with eggs from the island of Newfoundland, Newfoundland and Labrador, Canada. The mean supercooling point of eggs from the two populations increased from −40.2 °C in mid-February to −33.7 °C in mid-May. These eggs may also die at sub-zero temperatures above their supercooling point, depending on exposure durations. In the fall of 2012 when eggs were put out in the field, < 10% survived in the Laurentian Mountains, whereas > 70% survived further south. In the spring of 2013, no parasitism was detected in the population. However, the two cold waves that swept across the Laurentian Mountains the preceding winter were likely responsible for the collapse of the population. This study demonstrates that L. fiscellaria eggs may succumb to sub-zero temperatures above their supercooling point under field conditions. |
format |
Article in Journal/Newspaper |
author |
Delisle, Johanne Bernier-Cardou, Michèle Labrecque, Alain |
author_facet |
Delisle, Johanne Bernier-Cardou, Michèle Labrecque, Alain |
author_sort |
Delisle, Johanne |
title |
Extreme cold weather causes the collapse of a population of Lambdina fiscellaria (Lepidoptera: Geometridae) in the Laurentian Mountains of Québec, Canada |
title_short |
Extreme cold weather causes the collapse of a population of Lambdina fiscellaria (Lepidoptera: Geometridae) in the Laurentian Mountains of Québec, Canada |
title_full |
Extreme cold weather causes the collapse of a population of Lambdina fiscellaria (Lepidoptera: Geometridae) in the Laurentian Mountains of Québec, Canada |
title_fullStr |
Extreme cold weather causes the collapse of a population of Lambdina fiscellaria (Lepidoptera: Geometridae) in the Laurentian Mountains of Québec, Canada |
title_full_unstemmed |
Extreme cold weather causes the collapse of a population of Lambdina fiscellaria (Lepidoptera: Geometridae) in the Laurentian Mountains of Québec, Canada |
title_sort |
extreme cold weather causes the collapse of a population of lambdina fiscellaria (lepidoptera: geometridae) in the laurentian mountains of québec, canada |
publisher |
Cambridge University Press (CUP) |
publishDate |
2019 |
url |
http://dx.doi.org/10.4039/tce.2019.8 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0008347X19000087 |
geographic |
Newfoundland Canada |
geographic_facet |
Newfoundland Canada |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
The Canadian Entomologist volume 151, issue 3, page 311-328 ISSN 0008-347X 1918-3240 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.4039/tce.2019.8 |
container_title |
The Canadian Entomologist |
container_volume |
151 |
container_issue |
3 |
container_start_page |
311 |
op_container_end_page |
328 |
_version_ |
1768391980349390848 |