Visual field structure in the Empress Leilia, Asterocampa leilia (Lepidoptera, Nymphalidae): dimensions and regional variation in acuity
Rutowski, RL and Warrant, Eric LU
(2002)
In Journal of Comparative Physiology A
188(1).
p.1-12
- Abstract
- Male Empress Leilia butterflies (Asterocampa leilia) use a sit-and-wait tactic to locate mates. To see how vision might influence male behavior, we studied the morphology, optics, and receptor physiology of their eyes and found the following. (1) Each eye's visual field is approximately hemispherical with at most a 10degrees overlap in the fields of the eyes. There are no large sexual differences in visual field dimensions. (2) In both sexes, rhabdoms in the frontal and dorsal ommatidia are longer than those in other eye regions. (3) Interommatidial angles are smallest frontally and around the equator of the eye. Minimum interommatidial angles are 0.9-1degrees in males and 1.3-1.4degrees in females. (4) Acceptance angles of ommatidia... (More)
- Male Empress Leilia butterflies (Asterocampa leilia) use a sit-and-wait tactic to locate mates. To see how vision might influence male behavior, we studied the morphology, optics, and receptor physiology of their eyes and found the following. (1) Each eye's visual field is approximately hemispherical with at most a 10degrees overlap in the fields of the eyes. There are no large sexual differences in visual field dimensions. (2) In both sexes, rhabdoms in the frontal and dorsal ommatidia are longer than those in other eye regions. (3) Interommatidial angles are smallest frontally and around the equator of the eye. Minimum interommatidial angles are 0.9-1degrees in males and 1.3-1.4degrees in females. (4) Acceptance angles of ommatidia closely match interommatidial angles in the frontal region of the eye. We conclude that vision in these butterflies is mostly monocular and that males have more acute vision than females, especially in the frontal region (large facets, small interommatidial angles, small acceptance angles, long rhabdoms, and a close match between interommatidial angles and acceptance angles). This study also suggests that perched males direct their most acute vision where females are likely to appear but show no eye modifications that appear clearly related to a mate-locating tactic. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/335499
- author
- Rutowski, RL
and Warrant, Eric
LU
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- structure, butterfly vision, visual field, asterocampa leilia (Nymphalidae), eye morphology, acute zone
- in
- Journal of Comparative Physiology A
- volume
- 188
- issue
- 1
- pages
- 1 - 12
- publisher
- Springer
- external identifiers
-
- pmid:11935226
- wos:000176117000001
- scopus:0036488851
- ISSN
- 1432-1351
- DOI
- 10.1007/s00359-001-0273-7
- language
- English
- LU publication?
- yes
- id
- 53c7b68c-c0b8-49b0-8347-d1e67f8a34bd (old id 335499)
- date added to LUP
- 2016-04-01 15:49:51
- date last changed
- 2022-03-22 06:33:17
@article{53c7b68c-c0b8-49b0-8347-d1e67f8a34bd,
abstract = {{Male Empress Leilia butterflies (Asterocampa leilia) use a sit-and-wait tactic to locate mates. To see how vision might influence male behavior, we studied the morphology, optics, and receptor physiology of their eyes and found the following. (1) Each eye's visual field is approximately hemispherical with at most a 10degrees overlap in the fields of the eyes. There are no large sexual differences in visual field dimensions. (2) In both sexes, rhabdoms in the frontal and dorsal ommatidia are longer than those in other eye regions. (3) Interommatidial angles are smallest frontally and around the equator of the eye. Minimum interommatidial angles are 0.9-1degrees in males and 1.3-1.4degrees in females. (4) Acceptance angles of ommatidia closely match interommatidial angles in the frontal region of the eye. We conclude that vision in these butterflies is mostly monocular and that males have more acute vision than females, especially in the frontal region (large facets, small interommatidial angles, small acceptance angles, long rhabdoms, and a close match between interommatidial angles and acceptance angles). This study also suggests that perched males direct their most acute vision where females are likely to appear but show no eye modifications that appear clearly related to a mate-locating tactic.}},
author = {{Rutowski, RL and Warrant, Eric}},
issn = {{1432-1351}},
keywords = {{structure; butterfly vision; visual field; asterocampa leilia (Nymphalidae); eye morphology; acute zone}},
language = {{eng}},
number = {{1}},
pages = {{1--12}},
publisher = {{Springer}},
series = {{Journal of Comparative Physiology A}},
title = {{Visual field structure in the Empress Leilia, Asterocampa leilia (Lepidoptera, Nymphalidae): dimensions and regional variation in acuity}},
url = {{http://dx.doi.org/10.1007/s00359-001-0273-7}},
doi = {{10.1007/s00359-001-0273-7}},
volume = {{188}},
year = {{2002}},
}