Foraging in precocial chicks of the black-tailed godwit Limosa limosa: vulnerability to weather and prey size
Self-feeding precocial development is associated with high energy requirements and potentially vulnerable to short-term reductions in food availability, yet few studies have investigated development of foraging in precocial chicks and its sensitivity to environmental conditions. We studied time budg...
Published in: | Journal of Avian Biology |
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Language: | English |
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2009
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Online Access: | https://pure.knaw.nl/portal/en/publications/ee3ac31a-34c5-4cbd-b0bc-a2008e8a46f1 https://doi.org/10.1111/j.1600-048X.2008.04330.x https://hdl.handle.net/20.500.11755/ee3ac31a-34c5-4cbd-b0bc-a2008e8a46f1 |
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ftknawnlpublic:oai:pure.knaw.nl:publications/ee3ac31a-34c5-4cbd-b0bc-a2008e8a46f1 2024-04-28T08:41:31+00:00 Foraging in precocial chicks of the black-tailed godwit Limosa limosa: vulnerability to weather and prey size Schekkerman, H. Boele, A. 2009 https://pure.knaw.nl/portal/en/publications/ee3ac31a-34c5-4cbd-b0bc-a2008e8a46f1 https://doi.org/10.1111/j.1600-048X.2008.04330.x https://hdl.handle.net/20.500.11755/ee3ac31a-34c5-4cbd-b0bc-a2008e8a46f1 eng eng https://pure.knaw.nl/portal/en/publications/ee3ac31a-34c5-4cbd-b0bc-a2008e8a46f1 info:eu-repo/semantics/closedAccess Schekkerman , H & Boele , A 2009 , ' Foraging in precocial chicks of the black-tailed godwit Limosa limosa: vulnerability to weather and prey size ' , Journal of Avian Biology , vol. 40 , no. 4 , pp. 369-379 . https://doi.org/10.1111/j.1600-048X.2008.04330.x article 2009 ftknawnlpublic https://doi.org/10.1111/j.1600-048X.2008.04330.x20.500.11755/ee3ac31a-34c5-4cbd-b0bc-a2008e8a46f1 2024-04-11T00:21:24Z Self-feeding precocial development is associated with high energy requirements and potentially vulnerable to short-term reductions in food availability, yet few studies have investigated development of foraging in precocial chicks and its sensitivity to environmental conditions. We studied time budgets and foraging behaviour during the 25-d prefledging period in the insectivorous chicks of a grassland shorebird, the black-tailed godwit Limosa limosa. Until 8–10 d old, parental brooding was the main determinant of chicks' daily foraging time. Brooding decreased with age and temperature and increased during rainfall. Foraging time increased to 70–90% of the daylight period in chicks older than a week, during which distances of 3–12 km d−1 were covered. Chicks took 98% of their arthropod prey from the grassland vegetation. Prey ingestion rates increased in the first week and slowly declined thereafter, modified by wind speed, temperature and time of day. Chicks in poor body condition were brooded more than chicks growing normally and hence had less feeding time, potentially leading to a negative condition spiral under adverse conditions. However, we found no effect of condition on prey ingestion rate that would preclude recovery when conditions improve. Combining behavioural observations with data on energy expenditure revealed that mean prey size was small (1–4.5 mg), necessitating a high feeding rate, but increased notably after 7–10 d of age. This coincided with a decrease in walking speed, suggesting that chicks fed more selectively. Prey of older chicks approached the upper limit of sizes available in exploitable densities in the grassland vegetation, and this enhances the chicks' sensitivity to variation in prey availability due to weather and agricultural practice. Self-feeding precocial development is associated with high energy requirements and potentially vulnerable to short-term reductions in food availability, yet few studies have investigated development of foraging in precocial chicks and its ... Article in Journal/Newspaper black-tailed godwit Limosa limosa KNAW: Research Explorer (Royal Netherlands Academy of Arts and Sciences) Journal of Avian Biology 40 4 369 379 |
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Open Polar |
collection |
KNAW: Research Explorer (Royal Netherlands Academy of Arts and Sciences) |
op_collection_id |
ftknawnlpublic |
language |
English |
description |
Self-feeding precocial development is associated with high energy requirements and potentially vulnerable to short-term reductions in food availability, yet few studies have investigated development of foraging in precocial chicks and its sensitivity to environmental conditions. We studied time budgets and foraging behaviour during the 25-d prefledging period in the insectivorous chicks of a grassland shorebird, the black-tailed godwit Limosa limosa. Until 8–10 d old, parental brooding was the main determinant of chicks' daily foraging time. Brooding decreased with age and temperature and increased during rainfall. Foraging time increased to 70–90% of the daylight period in chicks older than a week, during which distances of 3–12 km d−1 were covered. Chicks took 98% of their arthropod prey from the grassland vegetation. Prey ingestion rates increased in the first week and slowly declined thereafter, modified by wind speed, temperature and time of day. Chicks in poor body condition were brooded more than chicks growing normally and hence had less feeding time, potentially leading to a negative condition spiral under adverse conditions. However, we found no effect of condition on prey ingestion rate that would preclude recovery when conditions improve. Combining behavioural observations with data on energy expenditure revealed that mean prey size was small (1–4.5 mg), necessitating a high feeding rate, but increased notably after 7–10 d of age. This coincided with a decrease in walking speed, suggesting that chicks fed more selectively. Prey of older chicks approached the upper limit of sizes available in exploitable densities in the grassland vegetation, and this enhances the chicks' sensitivity to variation in prey availability due to weather and agricultural practice. Self-feeding precocial development is associated with high energy requirements and potentially vulnerable to short-term reductions in food availability, yet few studies have investigated development of foraging in precocial chicks and its ... |
format |
Article in Journal/Newspaper |
author |
Schekkerman, H. Boele, A. |
spellingShingle |
Schekkerman, H. Boele, A. Foraging in precocial chicks of the black-tailed godwit Limosa limosa: vulnerability to weather and prey size |
author_facet |
Schekkerman, H. Boele, A. |
author_sort |
Schekkerman, H. |
title |
Foraging in precocial chicks of the black-tailed godwit Limosa limosa: vulnerability to weather and prey size |
title_short |
Foraging in precocial chicks of the black-tailed godwit Limosa limosa: vulnerability to weather and prey size |
title_full |
Foraging in precocial chicks of the black-tailed godwit Limosa limosa: vulnerability to weather and prey size |
title_fullStr |
Foraging in precocial chicks of the black-tailed godwit Limosa limosa: vulnerability to weather and prey size |
title_full_unstemmed |
Foraging in precocial chicks of the black-tailed godwit Limosa limosa: vulnerability to weather and prey size |
title_sort |
foraging in precocial chicks of the black-tailed godwit limosa limosa: vulnerability to weather and prey size |
publishDate |
2009 |
url |
https://pure.knaw.nl/portal/en/publications/ee3ac31a-34c5-4cbd-b0bc-a2008e8a46f1 https://doi.org/10.1111/j.1600-048X.2008.04330.x https://hdl.handle.net/20.500.11755/ee3ac31a-34c5-4cbd-b0bc-a2008e8a46f1 |
genre |
black-tailed godwit Limosa limosa |
genre_facet |
black-tailed godwit Limosa limosa |
op_source |
Schekkerman , H & Boele , A 2009 , ' Foraging in precocial chicks of the black-tailed godwit Limosa limosa: vulnerability to weather and prey size ' , Journal of Avian Biology , vol. 40 , no. 4 , pp. 369-379 . https://doi.org/10.1111/j.1600-048X.2008.04330.x |
op_relation |
https://pure.knaw.nl/portal/en/publications/ee3ac31a-34c5-4cbd-b0bc-a2008e8a46f1 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1111/j.1600-048X.2008.04330.x20.500.11755/ee3ac31a-34c5-4cbd-b0bc-a2008e8a46f1 |
container_title |
Journal of Avian Biology |
container_volume |
40 |
container_issue |
4 |
container_start_page |
369 |
op_container_end_page |
379 |
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1797571787693752320 |