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Differential effect...
Differential effects of early growth conditions on colour-producing nanostructures revealed through small angle X-ray scattering and electron microscopy
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- Janas, Katarzyna (författare)
- Jagiellonian Univ, Inst Environm Sci, Gronostajowa 7, PL-30387 Krakow, Poland.
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- Latkiewicz, Anna (författare)
- Jagiellonian Univ, Inst Geol Sci, Gronostajowa 3a, PL-30387 Krakow, Poland.
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- Parnell, Andrew (författare)
- Univ Sheffield, Dept Phys & Astron, Hicks Bldg, Sheffield S3 7RH, S Yorkshire, England.
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- Lutyk, Dorota (författare)
- Jagiellonian Univ, Inst Environm Sci, Gronostajowa 7, PL-30387 Krakow, Poland.
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- Barczyk, Julia (författare)
- Jagiellonian Univ, Inst Environm Sci, Gronostajowa 7, PL-30387 Krakow, Poland.
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- Shawkey, Matthew D. (författare)
- Univ Ghent, Dept Biol, Evolut & Opt Nanostruct, KL Ledeganckstr 35, B-9000 Ghent, Belgium.
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- Gustafsson, Lars, Professor, 1953- (författare)
- Uppsala universitet,Zooekologi
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- Cichon, Mariusz (författare)
- Jagiellonian Univ, Inst Environm Sci, Gronostajowa 7, PL-30387 Krakow, Poland.
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- Drobniak, Szymon M. (författare)
- Jagiellonian Univ, Inst Environm Sci, Gronostajowa 7, PL-30387 Krakow, Poland.;Univ New South Wales, Sch Biol Environm & Earth Sci, Sydney, NSW 2052, Australia.
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Jagiellonian Univ, Inst Environm Sci, Gronostajowa 7, PL-30387 Krakow, Poland Jagiellonian Univ, Inst Geol Sci, Gronostajowa 3a, PL-30387 Krakow, Poland. (creator_code:org_t)
- 2020-01-01
- 2020
- Engelska.
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Ingår i: Journal of Experimental Biology. - : COMPANY BIOLOGISTS LTD. - 0022-0949 .- 1477-9145. ; 223:18
- Relaterad länk:
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https://journals.bio...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The costs associated with the production and maintenance of colour patches is thought to maintain their honesty. Although considerable research on sexual selection has focused on structurally coloured plumage ornaments, the proximate mechanisms of their potential condition dependence, and thus their honesty, is rarely addressed, particularly in an experimental context. Blue tit (Cyanistes caeruleus) nestlings have ultraviolet (UV)-blue structurally coloured tail feathers, providing a unique opportunity for investigation of the causes of variation in their colour. Here, we examined the influence of early growing conditions on the reflectance and structural properties of UV-blue-coloured tail feathers of blue tit nestlings. We applied a two-stage brood size manipulation to determine which stage of development more strongly impacts the quality of tail feather colouration and microstructure. We used small-angle X-ray scattering (SAXS) and electron microscopy to characterise the nanoscale and microscale structure of tail feather barbs. Nestlings from the broods enlarged at a later stage of growth showed a sex-specific rectrix development delay, with males being more sensitive to this manipulation. Contrary to predictions, treatment affected neither the quality of the barbs' nanostructures nor the brightness and UV chroma of feathers. However. at the microscale. barbs' keratin characteristics were impaired in late-enlarged broods. Our results suggest that nanostructure quality, which determines the UV-blue colour in tail feathers, is not sensitive to early rearing conditions. Furthermore, availability of resources during feather growth seems to impact the quality of feather microstructure more than body condition, which is likely to be determined at an earlier stage of nestling growth.
Ämnesord
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
Nyckelord
- Blue tit
- Early-rearing conditions
- Microstructure
- Rectrices
- Small angle X-ray scattering
- Structural colouration
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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