Skip Navigation


Integrative and Comparative Biology Advance Access originally published online on May 5, 2006
Integrative and Comparative Biology 2006 46(4):430-438; doi:10.1093/icb/icj036
This Article
Right arrow Full Text Freely available
Right arrow FREE Full Text (PDF) Freely available
Right arrow All Versions of this Article:
46/4/430    most recent
icj036v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrow Search for citing articles in:
ISI Web of Science (15)
Right arrow Request Permissions
Google Scholar
Right arrow Articles by Bauer, R. T.
Right arrow Search for Related Content
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© The Author 2006. Published by Oxford University Press on behalf of The Society for Integrative and Comparative Biology. All rights reserved. For permissions, please email: journals.permissions@oxfordjournals.org.

Same sexual system but variable sociobiology: evolution of protandric simultaneous hermaphroditism in Lysmata shrimps

Raymond T. Bauer1
Department of Biology, University of Louisiana Lafayette, LA 70704-2451, USA

Correspondence: 1E-mail: rtbauer{at}louisiana.edu

The sexual system of the decapod (caridean) shrimp Lysmata is protandric simultaneous hermaphroditism (PSH). Individuals first mature as males (male phase = MP) and then when older (larger) change to the external phenotype of female carideans (female phase = FP). However, unlike purely protandric carideans, Lysmata FPs retain reduced male gonadal tissues and ducts, and are able to mate nonreciprocally as males as well as to reproduce as females. Thus, FPs of Lysmata species are functional simultaneous hermaphrodites although most reproductive effort is devoted to embryo production and incubation. The question explored here is, given the propensity of carideans to protandry, the apparent low cost, and high reproductive advantage of PSH, why has not PSH evolved more frequently? The mating systems and sexual selection of caridean shrimps, the original sex of protandric individuals, the cost of maleness, and sex allocation theory are discussed in relation to protandry and PSH. None of these factors adequately explains the evolution of PSH of Lysmata species. Lysmata has at least 2 species groups with very different sociobiologies; these groups do not appear to share current selective pressures that would explain PSH in both. A historical contingency hypothesis, testable in part with a phylogenetic analysis, may explain the evolution of PSH in Lysmata.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 J PLANKTON RESHome page
R. Calado, G. Dionisio, C. Nunes, and M. T. Dinis
Facultative secondary lecithotrophy in the megalopa of the shrimp Lysmata seticaudata (Risso, 1816) (Decapoda: Hippolytidae) under laboratory conditions
J. Plankton Res., July 1, 2007; 29(7): 599 - 603.
[Abstract] [Full Text] [PDF]

Home page
 Integr. Comp. Biol.Home page
J. L. Leonard
Sexual selection: lessons from hermaphrodite mating systems
Integr. Comp. Biol., August 1, 2006; 46(4): 349 - 367.
[Abstract] [Full Text] [PDF]


Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.