Low incubation temperature slows the development of cold tolerance in a precocial bird
(2021) In The Journal of experimental biology 224.- Abstract
Incubating birds trade off self-maintenance for keeping eggs warm. This causes lower incubation temperature in more challenging conditions, with consequences for a range of offspring traits. It is not yet clear how low developmental temperature affects cold tolerance early in life. This is ecologically important because before full thermoregulatory capacity is attained, precocial chicks must switch between foraging and being brooded when their body temperature declines. Hence, we studied how cold tolerance during conditions similar to a feeding bout in the wild was affected by incubation temperature in Japanese quail (Coturnix japonica). Cold-incubated (35.5°C) chicks took the longest to develop, hatched at a smaller size, and remained... (More)
Incubating birds trade off self-maintenance for keeping eggs warm. This causes lower incubation temperature in more challenging conditions, with consequences for a range of offspring traits. It is not yet clear how low developmental temperature affects cold tolerance early in life. This is ecologically important because before full thermoregulatory capacity is attained, precocial chicks must switch between foraging and being brooded when their body temperature declines. Hence, we studied how cold tolerance during conditions similar to a feeding bout in the wild was affected by incubation temperature in Japanese quail (Coturnix japonica). Cold-incubated (35.5°C) chicks took the longest to develop, hatched at a smaller size, and remained smaller during their first week of life compared with chicks incubated at higher temperatures (37.0 and 38.5°C). This was reflected in increased cooling rate and reduced homeothermy, probably on account of reductions in both heat-producing capacity and insulation. Lower cold tolerance could exacerbate other temperature-linked phenotypic effects and, hence, also the trade-off between future and current reproduction from the perspective of the incubating parent.
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- author
- Nord, Andreas LU and Nilsson, Jan Åke LU
- organization
- publishing date
- 2021
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Body temperature, Development, Endothermy, Heterothermy, Life history, Poultry, Thermoregulation
- in
- The Journal of experimental biology
- volume
- 224
- publisher
- The Company of Biologists Ltd
- external identifiers
-
- scopus:85100070523
- pmid:33268533
- ISSN
- 1477-9145
- DOI
- 10.1242/jeb.237743
- language
- English
- LU publication?
- yes
- id
- 086f5d6f-b147-43bb-8006-50d97ba62454
- date added to LUP
- 2021-02-08 08:13:43
- date last changed
- 2024-06-27 08:10:07
@article{086f5d6f-b147-43bb-8006-50d97ba62454,
abstract = {{<p>Incubating birds trade off self-maintenance for keeping eggs warm. This causes lower incubation temperature in more challenging conditions, with consequences for a range of offspring traits. It is not yet clear how low developmental temperature affects cold tolerance early in life. This is ecologically important because before full thermoregulatory capacity is attained, precocial chicks must switch between foraging and being brooded when their body temperature declines. Hence, we studied how cold tolerance during conditions similar to a feeding bout in the wild was affected by incubation temperature in Japanese quail (Coturnix japonica). Cold-incubated (35.5°C) chicks took the longest to develop, hatched at a smaller size, and remained smaller during their first week of life compared with chicks incubated at higher temperatures (37.0 and 38.5°C). This was reflected in increased cooling rate and reduced homeothermy, probably on account of reductions in both heat-producing capacity and insulation. Lower cold tolerance could exacerbate other temperature-linked phenotypic effects and, hence, also the trade-off between future and current reproduction from the perspective of the incubating parent.</p>}},
author = {{Nord, Andreas and Nilsson, Jan Åke}},
issn = {{1477-9145}},
keywords = {{Body temperature; Development; Endothermy; Heterothermy; Life history; Poultry; Thermoregulation}},
language = {{eng}},
publisher = {{The Company of Biologists Ltd}},
series = {{The Journal of experimental biology}},
title = {{Low incubation temperature slows the development of cold tolerance in a precocial bird}},
url = {{http://dx.doi.org/10.1242/jeb.237743}},
doi = {{10.1242/jeb.237743}},
volume = {{224}},
year = {{2021}},
}