Abrupt Geographical Transition between Aposematic Color Forms in the Spittlebug Prosapia ignipectus (Fitch) (Hemiptera: Cercopidae)
Over most of its range populations of the spittlebug Prosapia ignipectus (Fitch) (Hemiptera: Cercopidae) are monomorphic for black dorsal coloration. At the far northeastern margin of the species range in Maine, a cluster of populations is monomorphic for the presence of traverse orange dorsal lines...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
|
| Series: | Psyche: A Journal of Entomology |
| Online Access: | http://dx.doi.org/10.1155/2016/3623092 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832560891465302016 |
|---|---|
| author | Vinton Thompson Gervasio S. Carvalho |
| author_facet | Vinton Thompson Gervasio S. Carvalho |
| author_sort | Vinton Thompson |
| collection | DOAJ |
| description | Over most of its range populations of the spittlebug Prosapia ignipectus (Fitch) (Hemiptera: Cercopidae) are monomorphic for black dorsal coloration. At the far northeastern margin of the species range in Maine, a cluster of populations is monomorphic for the presence of traverse orange dorsal lines against a black background. The narrow gap separating monomorphic black and monomorphic lined populations is less than 10 km wide, shows no evidence of a hybrid zone, and is without consequential physical barriers or ecological breaks. This sharp and unexpected division of color forms seems to have persisted for at least 90 years. It appears to be the sharpest divide ever recorded between geographically adjacent populations monomorphic for alternative aposematic color forms. About 45 kilometers to the southwest of this dividing line, three closely situated populations, surrounded by monomorphic black populations, are polymorphic for the two color forms. These observations are at variance with several expectations for aposematic species: (1) that local populations will be monomorphic for warning coloration, (2) that adjacent populations monomorphic for different local color forms will be linked by populations with mixed or hybrid forms, and (3) that geographic boundaries between contrasting aposematic color forms should be temporally unstable. |
| format | Article |
| id | doaj-art-aeaecbf38eb34902b3fa1fa8b327546d |
| institution | Kabale University |
| issn | 0033-2615 1687-7438 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Psyche: A Journal of Entomology |
| spelling | doaj-art-aeaecbf38eb34902b3fa1fa8b327546d2025-02-03T01:26:34ZengWileyPsyche: A Journal of Entomology0033-26151687-74382016-01-01201610.1155/2016/36230923623092Abrupt Geographical Transition between Aposematic Color Forms in the Spittlebug Prosapia ignipectus (Fitch) (Hemiptera: Cercopidae)Vinton Thompson0Gervasio S. Carvalho1Office of the President, Metropolitan College of New York, 60 West Street, New York, NY 10006, USALaboratório de Entomologia, Faculdade de Biociências, Programa de Pós-Graduação em Zoologia, Pontifícia Universidade Católica do Rio Grande do Sul, Av. Ipiranga 6681, 90619-900 Porto Alegre, RS, BrazilOver most of its range populations of the spittlebug Prosapia ignipectus (Fitch) (Hemiptera: Cercopidae) are monomorphic for black dorsal coloration. At the far northeastern margin of the species range in Maine, a cluster of populations is monomorphic for the presence of traverse orange dorsal lines against a black background. The narrow gap separating monomorphic black and monomorphic lined populations is less than 10 km wide, shows no evidence of a hybrid zone, and is without consequential physical barriers or ecological breaks. This sharp and unexpected division of color forms seems to have persisted for at least 90 years. It appears to be the sharpest divide ever recorded between geographically adjacent populations monomorphic for alternative aposematic color forms. About 45 kilometers to the southwest of this dividing line, three closely situated populations, surrounded by monomorphic black populations, are polymorphic for the two color forms. These observations are at variance with several expectations for aposematic species: (1) that local populations will be monomorphic for warning coloration, (2) that adjacent populations monomorphic for different local color forms will be linked by populations with mixed or hybrid forms, and (3) that geographic boundaries between contrasting aposematic color forms should be temporally unstable.http://dx.doi.org/10.1155/2016/3623092 |
| spellingShingle | Vinton Thompson Gervasio S. Carvalho Abrupt Geographical Transition between Aposematic Color Forms in the Spittlebug Prosapia ignipectus (Fitch) (Hemiptera: Cercopidae) Psyche: A Journal of Entomology |
| title | Abrupt Geographical Transition between Aposematic Color Forms in the Spittlebug Prosapia ignipectus (Fitch) (Hemiptera: Cercopidae) |
| title_full | Abrupt Geographical Transition between Aposematic Color Forms in the Spittlebug Prosapia ignipectus (Fitch) (Hemiptera: Cercopidae) |
| title_fullStr | Abrupt Geographical Transition between Aposematic Color Forms in the Spittlebug Prosapia ignipectus (Fitch) (Hemiptera: Cercopidae) |
| title_full_unstemmed | Abrupt Geographical Transition between Aposematic Color Forms in the Spittlebug Prosapia ignipectus (Fitch) (Hemiptera: Cercopidae) |
| title_short | Abrupt Geographical Transition between Aposematic Color Forms in the Spittlebug Prosapia ignipectus (Fitch) (Hemiptera: Cercopidae) |
| title_sort | abrupt geographical transition between aposematic color forms in the spittlebug prosapia ignipectus fitch hemiptera cercopidae |
| url | http://dx.doi.org/10.1155/2016/3623092 |
| work_keys_str_mv | AT vintonthompson abruptgeographicaltransitionbetweenaposematiccolorformsinthespittlebugprosapiaignipectusfitchhemipteracercopidae AT gervasioscarvalho abruptgeographicaltransitionbetweenaposematiccolorformsinthespittlebugprosapiaignipectusfitchhemipteracercopidae |