Glossary entry

English term or phrase:

countershading

Romanian translation:

culori de camuflaj directionale (countershading)

Added to glossary by Mirelena
Jun 8, 2010 20:30
13 yrs ago
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English term

countershading

English to Romanian Other Zoology
Termenul se refera la efectul produs de coloratia pielii la delfini, folosita in scopul camuflarii. Iata contextul:

"Dolphins feeding at depths where the light is dim are often uniform, while surface feeders tend to be countershaded (dark above, light below) so that they blend into the background when lit from above. The color patterns of some species may also act as antipredator camouflage."

Discussion

RODICA CIOBANU Jun 9, 2010:
contershading coloraratie in functie de lumina ar mai putea fi o idee, inspirata de comentariul Mihaelei Ghizeli
Mihaela Ghiuzeli Jun 9, 2010:
coloratie invers proportionala cu lumina? http://www.thefreedictionary.com/countershaded

Proposed translations

+3
10 hrs
Selected

culori de camuflaj directionale (countershading)

E o pura explicatie - n-am gasit nici o referinta sau traducere in l. romana.
Peer comment(s):

agree RODICA CIOBANU
1 hr
Multumesc!
agree Iosif JUHASZ
2 hrs
Multumesc!
agree Tradeuro Language Services
2 days 2 hrs
Multumesc!
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Reference comments

11 hrs
Reference:

http://www.proz.com/kudoz/english_to_portuguese/zoology/3214...

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Note added at 11 ore (2010-06-09 08:21:16 GMT)
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countershading :
1) according to some authors, would be a kind of dun striping some foals are born with, but which disappears upon maturity, or with seasonal shedding ; thought to be a dun pattern.
2) The classical understanding of countershading (or obliterative camouflage or Thayer's law) is the use of progressively lighter colors from the upper to the lower surfaces, from a dark back to a light belly. From the American painter Abbott Handerson Thayer, who published in the 1890's a paper untitled "The Meaning of the White Undersides of Animals" with his theories considering the coutershading as a camouflage, a protective coloration of animals : as shading gives an idea of relief, a such "countershaded" prey may appear flat and insubstantial with its darkest part most often in direct sunlight and lightest on its undersid. He is considered as one of the first theorist of modern camouflage. From this point of view it could match the pattern "enlightened belly", often seen in the coat colors of the primitive type and considered as a trait of the Pangare gene or of the Agouti wild allele. countershading, "contre-ombre" :
1) selon certains auteurs, correspond à des rayures de type dun qui seraient présentées par certains poulains, mais qui disparaissent à l'âge adulte ou avec le changement saisonnier de robe. Ce serait un patron dun.
2) la définition classique du "countershading" ou "loi de Thayer" est une robe de plus en plus claire du haut vers le bas, par exemple d'un dos sombre vers un ventre clair. D'après le peintre américain Abbot Handerson Thayer, qui dans son article "The Meaning of the White Undersides of Animals" (1892) considère le countershading comme un camouflage, une tenue de protection pour les animaux : autant les ombres donnent une idée de relief, autant une proie arborant une telle "contre-ombre" (partie exposée sombre et dessous plus clair) peut paraitre plate et inconsistante. Thayer peut être considéré comme l'un des premiers théoriciens du camouflage moderne. D'après cette définition le countershading pourrait correspondre aux robes "ventre de biche" et "nez de renard" souvent trouvé dans les robes de type primitif, attribuées au gène pangaré (cf), et/ou à l'allèle wild du gène Agouti (cf).

http://www.lexiqueducheval.net/lexique_couleurs_de_robe_engl...
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