+ Site Statistics
References:
54,258,434
Abstracts:
29,560,870
PMIDs:
28,072,757
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Anal fin pigmentation in Brachyrhaphis fishes is not used for sexual mimicry



Anal fin pigmentation in Brachyrhaphis fishes is not used for sexual mimicry



Plos One 13(3): E0194121



Mimicry can occur in several contexts, including sexual interactions. In some cases, males mimic females to gain access to potential mates. In contrast, there are relatively few examples of species where females mimic males, and we know very little about what drives these patterns. Two hypotheses have been advanced to explain female mimicry of males. The first is that mimicry is used to reduce harassment of females by males. The second is that mimicry is used to display dominance over other females. In this study, we tested these hypotheses in Brachyrhaphis fishes, wherein females of several species have pigmentation on their anal fin of the same coloration and shape, and in the same location, as the genitalia of males. To test if female mimicry of males reduces male harassment, we experimentally manipulated female pigmentation and observed male preference for females with and without male-like pigmentation. To test the effect that female mimicry of males has on female dominance, we observed how females respond to anal fin pigmentation patterns of companion females. We found that neither of these hypotheses was supported by our data. We conclude that similarities in anal fin pigmentation between male and female Brachyrhaphis fishes is not an adaptation to reduce male harassment or to signal dominance between females. Alternative explanations must exist, including the possibility that these similarities are simply non-adaptive.

(PDF emailed within 0-6 h: $19.90)

Accession: 046609427

Download citation: RISBibTeXText

PMID: 29554139

DOI: 10.1371/journal.pone.0194121


Related references

Comparative transcriptomics of anal fin pigmentation patterns in cichlid fishes. Bmc Genomics 17: 712, 2017

Morphological divergence driven by predation environment within and between species of Brachyrhaphis fishes. Plos One 9(2): E90274, 2014

School oriented mimicry a new type of mimicry in fishes. Marine Ecology Progress Series 20(1-2): 45-50, 1984

Size doesn't matter, sex does: a test for boldness in sister species of Brachyrhaphis fishes. Ecology and Evolution 4(22): 4361-4369, 2014

Phylogenetic analyses provide insights into the historical biogeography and evolution of Brachyrhaphis fishes. Molecular Phylogenetics and Evolution 89: 104-114, 2015

Anal HPV detection in men who have sex with men living with HIV who report no recent anal sexual behaviours: baseline analysis of the Anal Cancer Examination (ACE) study. Sexually Transmitted Infections 92(5): 368-370, 2017

Sex, butterflies and molecular biology: when pigmentation met mimicry. Pigment Cell and Melanoma Research 27(4): 507-508, 2015

Influence of fluorescent light irradiation, ocular side pigmentation and source of fishes on the blind side pigmentation in the young Japanese flounder, Paralichthys olivaceus. Suisan Zoshoku, 392: 173-180, 1991

Sexual function, quality of life, and severity of anal incontinence after anal sphincteroplasty. American Journal of Obstetrics and Gynecology 195(6): 1753-1757, 2006

Sexual dysfunction is frequent in patients with anal fistulas and anal fissures. Ugeskrift for Laeger 177(9): V11140623, 2016

Chronic anal fissure from suspected adult sexual abuse in a traumatic anal sex practice patient. Acta Chirurgica Belgica 107(5): 566-569, 2007

Unlinked Mendelian inheritance of red and black pigmentation in snakes: Implications for Batesian mimicry. Evolution; International Journal of Organic Evolution 70(4): 944-953, 2016

Secondary sexual character of Astyanax bimaculatus Ostariophysi, Characidae, related of the anal and pelvic fins Carater sexual secundario em Astyanax bimaculatus Ostariophysi, Characidae, relacionado as nadadeiras anal e pelvicas. Naturalia (Rio Claro): 15: 109-119, 1990

Ecology and sexual selection: evolution of wing pigmentation in calopterygid damselflies in relation to latitude, sexual dimorphism, and speciation. American Naturalist 182(5): E174-E195, 2014

Mimicry in fishes. Nature London, 1604067: 508-509, 1947