Egg-laying substrate selection for optimal camouflage by quail

P. George Lovell, Graeme D. Ruxton, Keri V. Langridge, Karen A. Spencer

Research output: Contribution to journalArticle

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Abstract

Camouflage is conferred by background matching and disruption, which are both affected by microhabitat [1]. However, microhabitat selection that enhances camouflage has only been demonstrated in species with discrete phenotypic morphs [2 and 3]. For most animals, phenotypic variation is continuous [4 and 5]; here we explore whether such individuals can select microhabitats to best exploit camouflage. We use substrate selection in a ground-nesting bird (Japanese quail, Coturnix japonica). For such species, threat from visual predators is high [6] and egg appearance shows strong between-female variation [7]. In quail, variation in appearance is particularly obvious in the amount of dark maculation on the light-colored shell [8]. When given a choice, birds consistently selected laying substrates that made visual detection of their egg outline most challenging. However, the strategy for maximizing camouflage varied with the degree of egg maculation. Females laying heavily maculated eggs selected the substrate that more closely matched egg maculation color properties, leading to camouflage through disruptive coloration. For lightly maculated eggs, females chose a substrate that best matched their egg background coloration, suggesting background matching. Our results show that quail “know” their individual egg patterning and seek out a nest position that provides most effective camouflage for their individual phenotype
Original languageEnglish
Pages (from-to)260-264
Number of pages5
JournalCurrent Biology
Volume23
Issue number3
Early online date17 Jan 2013
DOIs
Publication statusPublished - 4 Feb 2013

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Camouflage
Quail
quails
microhabitats
Ovum
oviposition
color
Substrates
Coturnix
birds
Birds
morphs
phenotypic variation
Eggs
nests
predators
phenotype
animals
Animals
Color

Cite this

Lovell, P. George ; Ruxton, Graeme D. ; Langridge, Keri V. ; Spencer, Karen A. / Egg-laying substrate selection for optimal camouflage by quail. In: Current Biology. 2013 ; Vol. 23, No. 3. pp. 260-264.
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Egg-laying substrate selection for optimal camouflage by quail. / Lovell, P. George; Ruxton, Graeme D.; Langridge, Keri V.; Spencer, Karen A.

In: Current Biology, Vol. 23, No. 3, 04.02.2013, p. 260-264.

Research output: Contribution to journalArticle

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