Mate detection in a territorial butterfly-the effect of background and luminance contrast

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Standard

Mate detection in a territorial butterfly-the effect of background and luminance contrast. / Bergman, Martin; Lessios, Nicolas; Seymoure, Brett M.; Rutowski, Ronald L.

I: Behavioral Ecology, Vol. 26, Nr. 3, 2015, s. 851-860.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Harvard

APA

CBE

MLA

Vancouver

Author

Bergman, Martin ; Lessios, Nicolas ; Seymoure, Brett M. ; Rutowski, Ronald L. / Mate detection in a territorial butterfly-the effect of background and luminance contrast. I: Behavioral Ecology. 2015 ; Vol. 26, Nr. 3. s. 851-860.

RIS

TY - JOUR

T1 - Mate detection in a territorial butterfly-the effect of background and luminance contrast

AU - Bergman, Martin

AU - Lessios, Nicolas

AU - Seymoure, Brett M.

AU - Rutowski, Ronald L.

PY - 2015

Y1 - 2015

N2 - Many animals search for potential mates or prey using a perch-and-sally strategy. The success of such a strategy will depend on factors that affect the observer's ability to detect a passing resource item. Intrinsic factors (e.g., eye structure and physiology) have received much recent attention, but less is known about effects on object detection in nature and extrinsic factors such as size, coloration, and speed of a passing object and the background against which the object is viewed. Here, we examine how background affects the detection of butterfly models by perched males of the butterfly Asterocampa leilia in the field. We test the hypothesis that male choice of perch site in nature will influence the contrast between the object and background against which it is viewed and that this will influence success in detecting the object. We also test the effect of contrast by manipulating the brightness of the object and presenting butterfly models of different reflectance (ranging from black to white). We found an effect of model luminance, with dark models being most likely to elicit a response regardless of background. Further, there was an effect of background type with models viewed against blue sky eliciting the highest response. Perceived luminance contrast correlates to behavior; highly contrasting objects are more frequently detected. This study expands our understanding of visual system performance and has implications for our understanding of the behavior and evolutionary ecology of perching species.

AB - Many animals search for potential mates or prey using a perch-and-sally strategy. The success of such a strategy will depend on factors that affect the observer's ability to detect a passing resource item. Intrinsic factors (e.g., eye structure and physiology) have received much recent attention, but less is known about effects on object detection in nature and extrinsic factors such as size, coloration, and speed of a passing object and the background against which the object is viewed. Here, we examine how background affects the detection of butterfly models by perched males of the butterfly Asterocampa leilia in the field. We test the hypothesis that male choice of perch site in nature will influence the contrast between the object and background against which it is viewed and that this will influence success in detecting the object. We also test the effect of contrast by manipulating the brightness of the object and presenting butterfly models of different reflectance (ranging from black to white). We found an effect of model luminance, with dark models being most likely to elicit a response regardless of background. Further, there was an effect of background type with models viewed against blue sky eliciting the highest response. Perceived luminance contrast correlates to behavior; highly contrasting objects are more frequently detected. This study expands our understanding of visual system performance and has implications for our understanding of the behavior and evolutionary ecology of perching species.

KW - Lepidoptera

KW - mate-locating behavior

KW - perching

KW - sexual selection

KW - territoriality

KW - vision

U2 - 10.1093/beheco/arv020

DO - 10.1093/beheco/arv020

M3 - Article

VL - 26

SP - 851

EP - 860

JO - Behavioral Ecology

T2 - Behavioral Ecology

JF - Behavioral Ecology

SN - 1045-2249

IS - 3

ER -