Visual summation in night-flying sweat bees: A theoretical study
Theobald, Jamie LU ; Greiner, Birgit LU ; Weislo, WT and Warrant, Eric LU
(2006)
In Vision Research
46(14).
p.2298-2309
- Abstract
- Bees are predominantly diurnal; only a few groups fly at night. An evolutionary limitation that bees must overcome to inhabit dim environments is their eye type: bees possess apposition compound eyes, which are poorly suited to vision in dim light. Here, we theoretically examine how nocturnal bees Megalopta genalis fly at light levels usually reserved for insects bearing more sensitive superposition eyes. We find that neural summation should greatly increase M. genalis's visual reliability. Predicted spatial summation closely matches the morphology of laminal neurons believed to mediate such summation. Improved reliability costs acuity, but dark adapted bees already suffer optical blurring, and summation further degrades vision only... (More)
- Bees are predominantly diurnal; only a few groups fly at night. An evolutionary limitation that bees must overcome to inhabit dim environments is their eye type: bees possess apposition compound eyes, which are poorly suited to vision in dim light. Here, we theoretically examine how nocturnal bees Megalopta genalis fly at light levels usually reserved for insects bearing more sensitive superposition eyes. We find that neural summation should greatly increase M. genalis's visual reliability. Predicted spatial summation closely matches the morphology of laminal neurons believed to mediate such summation. Improved reliability costs acuity, but dark adapted bees already suffer optical blurring, and summation further degrades vision only slightly. (c) 2006 Elsevier Ltd. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/404300
- author
- Theobald, Jamie
LU
; Greiner, Birgit
LU
; Weislo, WT
and Warrant, Eric
LU
- organization
- publishing date
- 2006
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- halictid bees, neural summation, nocturnal vision, noise, apposition compound eyes
- in
- Vision Research
- volume
- 46
- issue
- 14
- pages
- 2298 - 2309
- publisher
- Elsevier
- external identifiers
-
- wos:000238702900012
- pmid:16488460
- scopus:33645026190
- ISSN
- 1878-5646
- DOI
- 10.1016/j.visres.2006.01.002
- language
- English
- LU publication?
- yes
- id
- 9fc9bba9-d6a5-4ebb-ba7a-ddca6e9ad530 (old id 404300)
- date added to LUP
- 2016-04-01 12:13:19
- date last changed
- 2024-01-08 12:42:49
@article{9fc9bba9-d6a5-4ebb-ba7a-ddca6e9ad530,
abstract = {{Bees are predominantly diurnal; only a few groups fly at night. An evolutionary limitation that bees must overcome to inhabit dim environments is their eye type: bees possess apposition compound eyes, which are poorly suited to vision in dim light. Here, we theoretically examine how nocturnal bees Megalopta genalis fly at light levels usually reserved for insects bearing more sensitive superposition eyes. We find that neural summation should greatly increase M. genalis's visual reliability. Predicted spatial summation closely matches the morphology of laminal neurons believed to mediate such summation. Improved reliability costs acuity, but dark adapted bees already suffer optical blurring, and summation further degrades vision only slightly. (c) 2006 Elsevier Ltd. All rights reserved.}},
author = {{Theobald, Jamie and Greiner, Birgit and Weislo, WT and Warrant, Eric}},
issn = {{1878-5646}},
keywords = {{halictid bees; neural summation; nocturnal vision; noise; apposition compound eyes}},
language = {{eng}},
number = {{14}},
pages = {{2298--2309}},
publisher = {{Elsevier}},
series = {{Vision Research}},
title = {{Visual summation in night-flying sweat bees: A theoretical study}},
url = {{http://dx.doi.org/10.1016/j.visres.2006.01.002}},
doi = {{10.1016/j.visres.2006.01.002}},
volume = {{46}},
year = {{2006}},
}