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Low incubation temp...
Low incubation temperature slows the development of cold tolerance in a precocial bird
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- Nord, Andreas (författare)
- Lund University,Lunds universitet,Evolutionär ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Livshistoria och funktionell ekologi,Forskargrupper vid Lunds universitet,Evolutionary ecology,Department of Biology,Faculty of Science,Life History and Functional Ecology,Lund University Research Groups
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- Nilsson, Jan Åke (författare)
- Lund University,Lunds universitet,Evolutionär ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Livshistoria och funktionell ekologi,Forskargrupper vid Lunds universitet,Evolutionary ecology,Department of Biology,Faculty of Science,Life History and Functional Ecology,Lund University Research Groups
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(creator_code:org_t)
- 2020-01-01
- 2021
- Engelska.
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Ingår i: The Journal of experimental biology. - : The Company of Biologists. - 1477-9145 .- 0022-0949. ; 224
- Relaterad länk:
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http://dx.doi.org/10...
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https://doi.org/10.1...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
Nyckelord
- Body temperature
- Development
- Endothermy
- Heterothermy
- Life history
- Poultry
- Thermoregulation
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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