Environmental complexity and social organization affect visual acuity in African cichlid fishes

Dobberfuhl, A. P., Ullmann, J. F. P., Hofmann, H. A. and Shumway, C. A. (2005) Environmental complexity and social organization affect visual acuity in African cichlid fishes. Behavioral Neuroscience, 119 6: 1648-1655.


Author Dobberfuhl, A. P.
Ullmann, J. F. P.
Hofmann, H. A.
Shumway, C. A.
Title Environmental complexity and social organization affect visual acuity in African cichlid fishes
Journal name Behavioral Neuroscience   Check publisher's open access policy
ISSN 0735-7044
1939-0084
Publication date 2005-12
Sub-type Article (original research)
DOI 10.1037/0735-7044.119.6.1648
Volume 119
Issue 6
Start page 1648
End page 1655
Total pages 8
Place of publication Washington, DC, United States
Publisher American Psychological Association
Language eng
Abstract The authors studied the effects of habitat complexity and social organization on visual acuity in closely related cichlid fishes (the Ectodini clade). The authors quantified habitat complexity among sand, intermediate, and rock habitats using chromatic difference measures (intensity analysis). Visual acuity was measured behaviorally, using optomotor/optokinetic responses to rotating square-wave stimuli. The rock-dwelling Asprotilapia leptura exhibited the best visual ability, compared with the intermediate and sand-dwelling species, Xenotilapia spilotera and Xenotilapia flavipinnis. The authors then compared effects of social organization. The lek-forming, polygamous Enantiopus melanogenys showed better visual acuity than that of the pair-bonding, monogamous X. flavipinnis. The authors' results are the first to demonstrate that species-specific differences in visual acuity are associated with differences in both the physical and social environment. Copyright 2005 by the American Psychological Association.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Centre for Advanced Imaging Publications
 
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