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Visual acuity and sensitivity increase allometrically with body size in butterflies

Rutowski, R. L.; Gislén, Lars LU and Warrant, Eric LU (2009) In Arthropod Structure & Development 38(2). p.91-100
Abstract
In insects, the surface area of the compound eye increases with body size both within and between species with only a slight negative allometry. This increase in surface area permits changes in eye structure that affect the eye's acuity and sensitivity, two features of eye performance that cannot be simultaneously maximized. Hence, as eye size varies within a lineage, so will the compromises between features that maximize acuity and those that maximize sensitivity. We examined these compromises in four species of nymphalid butterflies that varied in body mass over almost two orders of magnitude. The largest of these species was crepuscular and so additionally may indicate the potential effect of life style on eye structure. Across these... (More)
In insects, the surface area of the compound eye increases with body size both within and between species with only a slight negative allometry. This increase in surface area permits changes in eye structure that affect the eye's acuity and sensitivity, two features of eye performance that cannot be simultaneously maximized. Hence, as eye size varies within a lineage, so will the compromises between features that maximize acuity and those that maximize sensitivity. We examined these compromises in four species of nymphalid butterflies that varied in body mass over almost two orders of magnitude. The largest of these species was crepuscular and so additionally may indicate the potential effect of life style on eye structure. Across these species, as body size increased, facet diameters increased while interommatidial angles decreased. Finally, the eye parameter was fairly constant across species except in the crepuscular species in which some notably large values were observed in the frontal visual field. Based on our measurements, large butterflies have more acute and more sensitive vision than smaller butterflies. However, full understanding of the behavioral implications of this relationship awaits information on the temporal resolution of their eyes because typical flight velocities also increase with body size. (c) 2008 Elsevier Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Butterflies, Vision, Eye size, Body size, Nymphalidae
in
Arthropod Structure & Development
volume
38
issue
2
pages
91 - 100
publisher
Elsevier
external identifiers
  • wos:000261963500001
  • scopus:56949098600
ISSN
1467-8039
DOI
10.1016/j.asd.2008.08.003
language
English
LU publication?
yes
id
4cccdcd3-2dc1-47cd-817d-825adb75d9fe (old id 1313701)
date added to LUP
2009-03-06 15:49:53
date last changed
2017-03-12 03:48:58
@article{4cccdcd3-2dc1-47cd-817d-825adb75d9fe,
  abstract     = {In insects, the surface area of the compound eye increases with body size both within and between species with only a slight negative allometry. This increase in surface area permits changes in eye structure that affect the eye's acuity and sensitivity, two features of eye performance that cannot be simultaneously maximized. Hence, as eye size varies within a lineage, so will the compromises between features that maximize acuity and those that maximize sensitivity. We examined these compromises in four species of nymphalid butterflies that varied in body mass over almost two orders of magnitude. The largest of these species was crepuscular and so additionally may indicate the potential effect of life style on eye structure. Across these species, as body size increased, facet diameters increased while interommatidial angles decreased. Finally, the eye parameter was fairly constant across species except in the crepuscular species in which some notably large values were observed in the frontal visual field. Based on our measurements, large butterflies have more acute and more sensitive vision than smaller butterflies. However, full understanding of the behavioral implications of this relationship awaits information on the temporal resolution of their eyes because typical flight velocities also increase with body size. (c) 2008 Elsevier Ltd. All rights reserved.},
  author       = {Rutowski, R. L. and Gislén, Lars and Warrant, Eric},
  issn         = {1467-8039},
  keyword      = {Butterflies,Vision,Eye size,Body size,Nymphalidae},
  language     = {eng},
  number       = {2},
  pages        = {91--100},
  publisher    = {Elsevier},
  series       = {Arthropod Structure & Development},
  title        = {Visual acuity and sensitivity increase allometrically with body size in butterflies},
  url          = {http://dx.doi.org/10.1016/j.asd.2008.08.003},
  volume       = {38},
  year         = {2009},
}