کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2416379 1552238 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Colours of quality: structural (but not pigment) coloration informs about male quality in a polychromatic lizard
ترجمه فارسی عنوان
رنگ های کیفیت: رنگ آمیزی ساختاری (اما نه رنگدانه) درباره کیفیت مرد در یک مارمولک پلی کروماتیک اطلاع می دهد
کلمات کلیدی
سیگنال کروماتیک ارتباطات، توانایی مبارزه، مارمولک، رنگ رنگ رنگ ساختاری
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
چکیده انگلیسی


• We examined whether conspicuous coloration predicts male quality in Podarcis muralis.
• Hue of ultraviolet-blue patches is a good predictor of fighting ability.
• UV chroma of ultraviolet-blue patches is a good predictor of body condition.
• Ventral coloration apparently does not function as male quality indicator.

Chromatic signals result from the differential absorption of light by chemical compounds (pigment-based colours) and/or from differential scattering of light by integument nanostructures (structural colours). Both structural and pigment-based colours can be costly to produce, maintain and display, and have been shown to convey information about a variety of individual quality traits. Male wall lizards, Podarcis muralis, display conspicuously coloured ventral and lateral patches during ritualized inter- and intrasexual displays: ventral colours (perceived as orange, yellow or white by humans) are pigment based, while the ultraviolet (UV)-blue of the outer ventral scales (OVS), located along the flanks, is structurally produced. We used spectrophotometric data from 372 adult males to examine, considering the entire visual spectrum of lizards, whether ventral and OVS colour variables can predict male quality. Results indicate that the hue and UV chroma of OVS are good predictors of fighting ability (size-independent bite force) and body condition, respectively. This suggests that structural colour patches are condition dependent and function as complex multicomponent signals in this species. In contrast, ventral coloration apparently does not function as a male quality indicator. We suggest that ventral and lateral colour patches may be social signals with different information content, possibly aimed at different receivers.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Animal Behaviour - Volume 90, April 2014, Pages 73–81
نویسندگان
, , ,