Terrestrial arthropod abundance and phenology in the Canadian Arctic: modelling resource availability for Arctic-nesting insectivorous birds
Abstract Arctic arthropods are essential prey for many vertebrates, including birds, but arthropod populations and phenology are susceptible to climate change. The objective of this research was to model the relationship between seasonal changes in arthropod abundance and weather variables using dat...
Published in: | The Canadian Entomologist |
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Language: | English |
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Online Access: | http://dx.doi.org/10.4039/tce.2013.4 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0008347X13000047 |
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crcambridgeupr:10.4039/tce.2013.4 2024-06-23T07:49:37+00:00 Terrestrial arthropod abundance and phenology in the Canadian Arctic: modelling resource availability for Arctic-nesting insectivorous birds Bolduc, Elise Casajus, Nicolas Legagneux, Pierre McKinnon, Laura Gilchrist, H. Grant Leung, Maria Morrison, R.I. Guy Reid, Don Smith, Paul A. Buddle, Christopher M. Bêty, Joël 2013 http://dx.doi.org/10.4039/tce.2013.4 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0008347X13000047 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms The Canadian Entomologist volume 145, issue 2, page 155-170 ISSN 0008-347X 1918-3240 journal-article 2013 crcambridgeupr https://doi.org/10.4039/tce.2013.4 2024-06-12T04:01:21Z Abstract Arctic arthropods are essential prey for many vertebrates, including birds, but arthropod populations and phenology are susceptible to climate change. The objective of this research was to model the relationship between seasonal changes in arthropod abundance and weather variables using data from a collaborative pan-Canadian (Southampton, Herschel, Bylot, and Ellesmere Islands) study on terrestrial arthropods. Arthropods were captured with passive traps that provided a combined measure of abundance and activity (a proxy for arthropod availability to foraging birds). We found that 70% of the deviance in daily arthropod availability was explained by three temperature covariates: mean daily temperature, thaw degree-day, and thaw degree-day 2 . Models had an adjusted R 2 of 0.29–0.95 with an average among sites and arthropod families of 0.67. This indicates a moderate to strong fit to the raw data. The models for arthropod families with synchronous emergence, such as Tipulidae (Diptera), had a better fit (average adjusted R 2 of 0.80) than less synchronous taxa, such as Araneae ( R 2 = 0.60). Arthropod abundance was typically higher in wet than in mesic habitats. Our models will serve as tools for researchers who want to correlate insectivorous bird breeding data to arthropod availability in the Canadian Arctic. Article in Journal/Newspaper Arctic Climate change Cambridge University Press Arctic The Canadian Entomologist 145 2 155 170 |
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Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Abstract Arctic arthropods are essential prey for many vertebrates, including birds, but arthropod populations and phenology are susceptible to climate change. The objective of this research was to model the relationship between seasonal changes in arthropod abundance and weather variables using data from a collaborative pan-Canadian (Southampton, Herschel, Bylot, and Ellesmere Islands) study on terrestrial arthropods. Arthropods were captured with passive traps that provided a combined measure of abundance and activity (a proxy for arthropod availability to foraging birds). We found that 70% of the deviance in daily arthropod availability was explained by three temperature covariates: mean daily temperature, thaw degree-day, and thaw degree-day 2 . Models had an adjusted R 2 of 0.29–0.95 with an average among sites and arthropod families of 0.67. This indicates a moderate to strong fit to the raw data. The models for arthropod families with synchronous emergence, such as Tipulidae (Diptera), had a better fit (average adjusted R 2 of 0.80) than less synchronous taxa, such as Araneae ( R 2 = 0.60). Arthropod abundance was typically higher in wet than in mesic habitats. Our models will serve as tools for researchers who want to correlate insectivorous bird breeding data to arthropod availability in the Canadian Arctic. |
format |
Article in Journal/Newspaper |
author |
Bolduc, Elise Casajus, Nicolas Legagneux, Pierre McKinnon, Laura Gilchrist, H. Grant Leung, Maria Morrison, R.I. Guy Reid, Don Smith, Paul A. Buddle, Christopher M. Bêty, Joël |
spellingShingle |
Bolduc, Elise Casajus, Nicolas Legagneux, Pierre McKinnon, Laura Gilchrist, H. Grant Leung, Maria Morrison, R.I. Guy Reid, Don Smith, Paul A. Buddle, Christopher M. Bêty, Joël Terrestrial arthropod abundance and phenology in the Canadian Arctic: modelling resource availability for Arctic-nesting insectivorous birds |
author_facet |
Bolduc, Elise Casajus, Nicolas Legagneux, Pierre McKinnon, Laura Gilchrist, H. Grant Leung, Maria Morrison, R.I. Guy Reid, Don Smith, Paul A. Buddle, Christopher M. Bêty, Joël |
author_sort |
Bolduc, Elise |
title |
Terrestrial arthropod abundance and phenology in the Canadian Arctic: modelling resource availability for Arctic-nesting insectivorous birds |
title_short |
Terrestrial arthropod abundance and phenology in the Canadian Arctic: modelling resource availability for Arctic-nesting insectivorous birds |
title_full |
Terrestrial arthropod abundance and phenology in the Canadian Arctic: modelling resource availability for Arctic-nesting insectivorous birds |
title_fullStr |
Terrestrial arthropod abundance and phenology in the Canadian Arctic: modelling resource availability for Arctic-nesting insectivorous birds |
title_full_unstemmed |
Terrestrial arthropod abundance and phenology in the Canadian Arctic: modelling resource availability for Arctic-nesting insectivorous birds |
title_sort |
terrestrial arthropod abundance and phenology in the canadian arctic: modelling resource availability for arctic-nesting insectivorous birds |
publisher |
Cambridge University Press (CUP) |
publishDate |
2013 |
url |
http://dx.doi.org/10.4039/tce.2013.4 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0008347X13000047 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change |
genre_facet |
Arctic Climate change |
op_source |
The Canadian Entomologist volume 145, issue 2, page 155-170 ISSN 0008-347X 1918-3240 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.4039/tce.2013.4 |
container_title |
The Canadian Entomologist |
container_volume |
145 |
container_issue |
2 |
container_start_page |
155 |
op_container_end_page |
170 |
_version_ |
1802640149711945728 |