Data from: Variation in offspring development is driven more by weather and maternal condition than predation risk
1. 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, while inclement weather likely prolongs development. For taxa with parental care, paren...
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ftdryad:oai:v1.datadryad.org:10255/dryad.201561 2023-05-15T16:06:22+02:00 Data from: 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 British Columbia Canada Holocene 2019-01-08T13:00:49Z http://hdl.handle.net/10255/dryad.201561 https://doi.org/10.5061/dryad.7012f1b unknown doi:10.5061/dryad.7012f1b/1 doi:10.5061/dryad.7012f1b/2 doi:10.1111/1365-2435.13273 doi:10.5061/dryad.7012f1b de Zwaan DR, Camfield AF, MacDonald EC, Martin K (2019) Variation in offspring development is driven more by weather and maternal condition than predation risk. Functional Ecology 33(3): 447-456. http://hdl.handle.net/10255/dryad.201561 alpine ecology developmental carry-over effects ground-nesting songbird Horned Lark incubation duration nestling period length path analysis Article 2019 ftdryad https://doi.org/10.5061/dryad.7012f1b https://doi.org/10.5061/dryad.7012f1b/1 https://doi.org/10.5061/dryad.7012f1b/2 https://doi.org/10.1111/1365-2435.13273 2020-01-01T16:20:43Z 1. 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, while inclement weather likely prolongs development. For taxa with parental care, parental behaviour may buffer offspring against some extrinsic drivers. 2. 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 incubation and nestling development duration. 3. 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. 4. 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%/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 buffering capabilities against environmental constraints. Incubation duration was only weakly correlated with fledging age (r = –0.21) suggesting minimal developmental carry-over effects. 5. 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 within-population variation in development time. We highlight the importance of addressing multiple drivers of variation in key life-history traits and provide context for understanding life-history theory under changing environmental conditions. Article in Journal/Newspaper Eremophila alpestris Dryad Digital Repository (Duke University) British Columbia ENVELOPE(-125.003,-125.003,54.000,54.000) Canada |
institution |
Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
alpine ecology developmental carry-over effects ground-nesting songbird Horned Lark incubation duration nestling period length path analysis |
spellingShingle |
alpine ecology developmental carry-over effects ground-nesting songbird Horned Lark incubation duration nestling period length path analysis de Zwaan, Devin R. Camfield, Alaine F. MacDonald, Elizabeth C. Martin, Kathy Data from: Variation in offspring development is driven more by weather and maternal condition than predation risk |
topic_facet |
alpine ecology developmental carry-over effects ground-nesting songbird Horned Lark incubation duration nestling period length path analysis |
description |
1. 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, while inclement weather likely prolongs development. For taxa with parental care, parental behaviour may buffer offspring against some extrinsic drivers. 2. 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 incubation and nestling development duration. 3. 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. 4. 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%/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 buffering capabilities against environmental constraints. Incubation duration was only weakly correlated with fledging age (r = –0.21) suggesting minimal developmental carry-over effects. 5. 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 within-population variation in development time. We highlight the importance of addressing multiple drivers of variation in key life-history traits and provide context for understanding life-history theory under changing environmental conditions. |
format |
Article in Journal/Newspaper |
author |
de Zwaan, Devin R. Camfield, Alaine F. MacDonald, Elizabeth C. Martin, Kathy |
author_facet |
de Zwaan, Devin R. Camfield, Alaine F. MacDonald, Elizabeth C. Martin, Kathy |
author_sort |
de Zwaan, Devin R. |
title |
Data from: Variation in offspring development is driven more by weather and maternal condition than predation risk |
title_short |
Data from: Variation in offspring development is driven more by weather and maternal condition than predation risk |
title_full |
Data from: Variation in offspring development is driven more by weather and maternal condition than predation risk |
title_fullStr |
Data from: Variation in offspring development is driven more by weather and maternal condition than predation risk |
title_full_unstemmed |
Data from: Variation in offspring development is driven more by weather and maternal condition than predation risk |
title_sort |
data from: variation in offspring development is driven more by weather and maternal condition than predation risk |
publishDate |
2019 |
url |
http://hdl.handle.net/10255/dryad.201561 https://doi.org/10.5061/dryad.7012f1b |
op_coverage |
British Columbia Canada Holocene |
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_relation |
doi:10.5061/dryad.7012f1b/1 doi:10.5061/dryad.7012f1b/2 doi:10.1111/1365-2435.13273 doi:10.5061/dryad.7012f1b de Zwaan DR, Camfield AF, MacDonald EC, Martin K (2019) Variation in offspring development is driven more by weather and maternal condition than predation risk. Functional Ecology 33(3): 447-456. http://hdl.handle.net/10255/dryad.201561 |
op_doi |
https://doi.org/10.5061/dryad.7012f1b https://doi.org/10.5061/dryad.7012f1b/1 https://doi.org/10.5061/dryad.7012f1b/2 https://doi.org/10.1111/1365-2435.13273 |
_version_ |
1766402264141922304 |