Variation in offspring development is driven more by weather and maternal condition than predation risk
Abstract Variation in offspring development is expected to be driven by constraints on resource allocation between growth and maintenance (e.g. thermoregulation). Rapid post‐natal development decreases predation risk to offspring, while inclement weather likely prolongs development. For taxa with pa...
Published in: | Functional Ecology |
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Online Access: | http://dx.doi.org/10.1111/1365-2435.13273 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1365-2435.13273 https://onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2435.13273 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/1365-2435.13273 https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2435.13273 |
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crwiley:10.1111/1365-2435.13273 2024-06-09T07:45:43+00:00 Variation in offspring development is driven more by weather and maternal condition than predation risk de Zwaan, Devin R. Camfield, Alaine F. MacDonald, Elizabeth C. Martin, Kathy Sandercock, Brett American Ornithological Society Environment and Climate Change Canada University of British Columbia Natural Sciences and Engineering Research Council of Canada 2019 http://dx.doi.org/10.1111/1365-2435.13273 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1365-2435.13273 https://onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2435.13273 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/1365-2435.13273 https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2435.13273 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Functional Ecology volume 33, issue 3, page 447-456 ISSN 0269-8463 1365-2435 journal-article 2019 crwiley https://doi.org/10.1111/1365-2435.13273 2024-05-16T14:27:34Z Abstract Variation in offspring development is expected to be driven by constraints on resource allocation between growth and maintenance (e.g. thermoregulation). Rapid post‐natal development decreases predation risk to offspring, while inclement weather likely prolongs development. For taxa with parental care, parental behaviour may partially buffer offspring against extrinsic drivers like predation risk and severe weather. Using a 7‐year dataset from an alpine population of horned lark Eremophila alpestris , a ground‐nesting songbird in northern British Columbia, Canada, we investigated multiple potential drivers of variation in the duration of incubation and nestling development. Using path analysis, we evaluated the direct effects of weather, predation risk and parental care on offspring development, as well as indirect developmental “carry‐over” effects of conditions during incubation on the nestling period. Nestling period duration varied by nearly 100% (7–13 days) and incubation duration by 40% (10–14 days). Cold ambient temperatures late in the nestling period prolonged development by 1 day for every 2 days below 10°C, particularly when combined with heavy precipitation. Rapid nestling development was associated with high predation risk, and prolonging development incurred a nest survival cost (–2.3% per day). Females in good condition created nest environments that promoted rapid nestling development periods (average = 8–9 days) compared to poor condition females during harsh, early‐season conditions (10–11 days), indicating parental buffering capabilities against environmental constraints. Fledging age was weakly correlated with incubation duration ( r = –0.21) suggesting minimal developmental carry‐over effects. Given high nest predation risk, immediate fitness benefits can be derived by overcoming environmental constraints and reducing development time. While predation risk was influential, inclement weather and maternal condition had stronger effects on variation in offspring development. Addressing ... Article in Journal/Newspaper Eremophila alpestris Wiley Online Library British Columbia ENVELOPE(-125.003,-125.003,54.000,54.000) Canada Functional Ecology 33 3 447 456 |
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Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract Variation in offspring development is expected to be driven by constraints on resource allocation between growth and maintenance (e.g. thermoregulation). Rapid post‐natal development decreases predation risk to offspring, while inclement weather likely prolongs development. For taxa with parental care, parental behaviour may partially buffer offspring against extrinsic drivers like predation risk and severe weather. Using a 7‐year dataset from an alpine population of horned lark Eremophila alpestris , a ground‐nesting songbird in northern British Columbia, Canada, we investigated multiple potential drivers of variation in the duration of incubation and nestling development. Using path analysis, we evaluated the direct effects of weather, predation risk and parental care on offspring development, as well as indirect developmental “carry‐over” effects of conditions during incubation on the nestling period. Nestling period duration varied by nearly 100% (7–13 days) and incubation duration by 40% (10–14 days). Cold ambient temperatures late in the nestling period prolonged development by 1 day for every 2 days below 10°C, particularly when combined with heavy precipitation. Rapid nestling development was associated with high predation risk, and prolonging development incurred a nest survival cost (–2.3% per day). Females in good condition created nest environments that promoted rapid nestling development periods (average = 8–9 days) compared to poor condition females during harsh, early‐season conditions (10–11 days), indicating parental buffering capabilities against environmental constraints. Fledging age was weakly correlated with incubation duration ( r = –0.21) suggesting minimal developmental carry‐over effects. Given high nest predation risk, immediate fitness benefits can be derived by overcoming environmental constraints and reducing development time. While predation risk was influential, inclement weather and maternal condition had stronger effects on variation in offspring development. Addressing ... |
author2 |
Sandercock, Brett American Ornithological Society Environment and Climate Change Canada University of British Columbia Natural Sciences and Engineering Research Council of Canada |
format |
Article in Journal/Newspaper |
author |
de Zwaan, Devin R. Camfield, Alaine F. MacDonald, Elizabeth C. Martin, Kathy |
spellingShingle |
de Zwaan, Devin R. Camfield, Alaine F. MacDonald, Elizabeth C. Martin, Kathy Variation in offspring development is driven more by weather and maternal condition than predation risk |
author_facet |
de Zwaan, Devin R. Camfield, Alaine F. MacDonald, Elizabeth C. Martin, Kathy |
author_sort |
de Zwaan, Devin R. |
title |
Variation in offspring development is driven more by weather and maternal condition than predation risk |
title_short |
Variation in offspring development is driven more by weather and maternal condition than predation risk |
title_full |
Variation in offspring development is driven more by weather and maternal condition than predation risk |
title_fullStr |
Variation in offspring development is driven more by weather and maternal condition than predation risk |
title_full_unstemmed |
Variation in offspring development is driven more by weather and maternal condition than predation risk |
title_sort |
variation in offspring development is driven more by weather and maternal condition than predation risk |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1111/1365-2435.13273 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1365-2435.13273 https://onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2435.13273 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/1365-2435.13273 https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2435.13273 |
long_lat |
ENVELOPE(-125.003,-125.003,54.000,54.000) |
geographic |
British Columbia Canada |
geographic_facet |
British Columbia Canada |
genre |
Eremophila alpestris |
genre_facet |
Eremophila alpestris |
op_source |
Functional Ecology volume 33, issue 3, page 447-456 ISSN 0269-8463 1365-2435 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/1365-2435.13273 |
container_title |
Functional Ecology |
container_volume |
33 |
container_issue |
3 |
container_start_page |
447 |
op_container_end_page |
456 |
_version_ |
1801375218328928256 |