Energy expenditure and water turnover of incubating Ruddy Turnstones:High costs under High Arctic climatic conditions
To investigate whether shorebirds breeding in the High Arctic have relatively high rates of energy expenditure due to the harsh climatic conditions that prevail even in summer, we measured daily energy expenditure (DEE) and water turnover of Ruddy Turnstones (Arenaria interpres) during the incubatio...
Published in: | The Auk |
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Language: | English |
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1994
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Online Access: | https://hdl.handle.net/11370/b663eb48-a657-44f2-aa07-92e0c7d9818f https://research.rug.nl/en/publications/b663eb48-a657-44f2-aa07-92e0c7d9818f https://doi.org/10.2307/4088600 https://pure.rug.nl/ws/files/3290921/1994AukPiersma.pdf |
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ftunigroningenpu:oai:pure.rug.nl:publications/b663eb48-a657-44f2-aa07-92e0c7d9818f 2024-06-02T07:59:43+00:00 Energy expenditure and water turnover of incubating Ruddy Turnstones:High costs under High Arctic climatic conditions Piersma, Theunis Morrison, R.I. Guy 1994-04 application/pdf https://hdl.handle.net/11370/b663eb48-a657-44f2-aa07-92e0c7d9818f https://research.rug.nl/en/publications/b663eb48-a657-44f2-aa07-92e0c7d9818f https://doi.org/10.2307/4088600 https://pure.rug.nl/ws/files/3290921/1994AukPiersma.pdf eng eng https://research.rug.nl/en/publications/b663eb48-a657-44f2-aa07-92e0c7d9818f info:eu-repo/semantics/openAccess Piersma , T & Morrison , R I G 1994 , ' Energy expenditure and water turnover of incubating Ruddy Turnstones : High costs under High Arctic climatic conditions ' , The Auk , vol. 111 , no. 2 , pp. 366-376 . https://doi.org/10.2307/4088600 article 1994 ftunigroningenpu https://doi.org/10.2307/4088600 2024-05-07T18:06:01Z To investigate whether shorebirds breeding in the High Arctic have relatively high rates of energy expenditure due to the harsh climatic conditions that prevail even in summer, we measured daily energy expenditure (DEE) and water turnover of Ruddy Turnstones (Arenaria interpres) during the incubation phase on Rowley Island in Foxe Basin, N.W.T., Canada, at 69-degrees-N, using the doubly-labeled-water technique. Simultaneously, we conducted detailed measurements of ambient climatic conditions, including in situ measurements with heated taxidermic mounts. A series of 11 doubly-labeled-water measurements with eight individual Ruddy Turnstones, of which at least seven successfully hatched eggs, yielded a mean DEE of 4.08 W. This is a relatively high value for a 108-g bird, equalling four times their basal metabolic rate (BMR). Most variation in DEE was attributable to standard operative temperature, which combines the effects of air temperature, wind and radiation on heat loss from the turnstone's point of view. On average, 25% of DEE was attributable to BMR, 31% to the cost of thermoregulation, and 44% to the cost of activity. The average value for water turnover of 96.6 g/day is high compared to published values for other birds and confirms the large requirement for food (which is water-rich) of incubating Ruddy Turnstones. An analysis of the climatic conditions prevalent in Foxe Basin during the breeding seasons of Ruddy Turnstones, based on the 33-year period 1958-1990, indicated that they faced thermostatic hardships, defined as energy expenditure exceeding the maximum sustained working level (estimated at 4.5 times BMR), on 15% of the days. Climatic conditions were most severe in the early 1960s, but have improved since. Article in Journal/Newspaper Arctic Arctic Arenaria interpres Foxe Basin Rowley Island University of Groningen research database Arctic Canada Dee ENVELOPE(-59.767,-59.767,-62.433,-62.433) Foxe Basin ENVELOPE(-77.918,-77.918,65.931,65.931) Rowley Island ENVELOPE(-78.865,-78.865,69.101,69.101) The Auk 111 2 366 376 |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
description |
To investigate whether shorebirds breeding in the High Arctic have relatively high rates of energy expenditure due to the harsh climatic conditions that prevail even in summer, we measured daily energy expenditure (DEE) and water turnover of Ruddy Turnstones (Arenaria interpres) during the incubation phase on Rowley Island in Foxe Basin, N.W.T., Canada, at 69-degrees-N, using the doubly-labeled-water technique. Simultaneously, we conducted detailed measurements of ambient climatic conditions, including in situ measurements with heated taxidermic mounts. A series of 11 doubly-labeled-water measurements with eight individual Ruddy Turnstones, of which at least seven successfully hatched eggs, yielded a mean DEE of 4.08 W. This is a relatively high value for a 108-g bird, equalling four times their basal metabolic rate (BMR). Most variation in DEE was attributable to standard operative temperature, which combines the effects of air temperature, wind and radiation on heat loss from the turnstone's point of view. On average, 25% of DEE was attributable to BMR, 31% to the cost of thermoregulation, and 44% to the cost of activity. The average value for water turnover of 96.6 g/day is high compared to published values for other birds and confirms the large requirement for food (which is water-rich) of incubating Ruddy Turnstones. An analysis of the climatic conditions prevalent in Foxe Basin during the breeding seasons of Ruddy Turnstones, based on the 33-year period 1958-1990, indicated that they faced thermostatic hardships, defined as energy expenditure exceeding the maximum sustained working level (estimated at 4.5 times BMR), on 15% of the days. Climatic conditions were most severe in the early 1960s, but have improved since. |
format |
Article in Journal/Newspaper |
author |
Piersma, Theunis Morrison, R.I. Guy |
spellingShingle |
Piersma, Theunis Morrison, R.I. Guy Energy expenditure and water turnover of incubating Ruddy Turnstones:High costs under High Arctic climatic conditions |
author_facet |
Piersma, Theunis Morrison, R.I. Guy |
author_sort |
Piersma, Theunis |
title |
Energy expenditure and water turnover of incubating Ruddy Turnstones:High costs under High Arctic climatic conditions |
title_short |
Energy expenditure and water turnover of incubating Ruddy Turnstones:High costs under High Arctic climatic conditions |
title_full |
Energy expenditure and water turnover of incubating Ruddy Turnstones:High costs under High Arctic climatic conditions |
title_fullStr |
Energy expenditure and water turnover of incubating Ruddy Turnstones:High costs under High Arctic climatic conditions |
title_full_unstemmed |
Energy expenditure and water turnover of incubating Ruddy Turnstones:High costs under High Arctic climatic conditions |
title_sort |
energy expenditure and water turnover of incubating ruddy turnstones:high costs under high arctic climatic conditions |
publishDate |
1994 |
url |
https://hdl.handle.net/11370/b663eb48-a657-44f2-aa07-92e0c7d9818f https://research.rug.nl/en/publications/b663eb48-a657-44f2-aa07-92e0c7d9818f https://doi.org/10.2307/4088600 https://pure.rug.nl/ws/files/3290921/1994AukPiersma.pdf |
long_lat |
ENVELOPE(-59.767,-59.767,-62.433,-62.433) ENVELOPE(-77.918,-77.918,65.931,65.931) ENVELOPE(-78.865,-78.865,69.101,69.101) |
geographic |
Arctic Canada Dee Foxe Basin Rowley Island |
geographic_facet |
Arctic Canada Dee Foxe Basin Rowley Island |
genre |
Arctic Arctic Arenaria interpres Foxe Basin Rowley Island |
genre_facet |
Arctic Arctic Arenaria interpres Foxe Basin Rowley Island |
op_source |
Piersma , T & Morrison , R I G 1994 , ' Energy expenditure and water turnover of incubating Ruddy Turnstones : High costs under High Arctic climatic conditions ' , The Auk , vol. 111 , no. 2 , pp. 366-376 . https://doi.org/10.2307/4088600 |
op_relation |
https://research.rug.nl/en/publications/b663eb48-a657-44f2-aa07-92e0c7d9818f |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.2307/4088600 |
container_title |
The Auk |
container_volume |
111 |
container_issue |
2 |
container_start_page |
366 |
op_container_end_page |
376 |
_version_ |
1800743827477102592 |