Cookies Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

New insights in the Porcellionides pruinosus complex (Isopoda, Oniscidea): biological, behavioural, and morphological approaches

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Crustaceana

The terrestrial isopod, Porcellionides pruinosus (Brandt, 1833) is commonly viewed as one of the most widespread species of woodlice, mainly because of its synanthropic nature. Recent investigations have, however, suggested that some populations, although morphologically closely similar, may consist in fact of separate species. In this study, six populations from distant localities were examined in a taxonomic perspective. Laboratory crossings first confirmed the reproductive isolation between two groups of populations. Behavioural tests then revealed a pre-zygotic reproductive isolating mechanism in the absence of sexual recognition between males and females from the two groups. These results, together with previously found molecular data, gave congruent evidence for the existence of two well-defined species. Yet, morphological investigations failed to detect any meristic characters that would allow a strict discrimination between P. pruinosus and the other species. From the literature, it was impossible to assign the herein recognized sibling species to any previously described taxa. This study gives new insights in the P. pruinosus complex but also highlights the difficulties to identify and name species in the absence of revised and updated diagnoses of the genus Porcellionides. L'isopode terrestre Porcellionides pruinosus (Brandt, 1833) est considéré comme l'une des espèces de cloportes les plus répandues de par le monde, principalement en raison de son caractère synanthropique. Des études récentes ont cependant suggéré que certaines populations, bien que morphologiquement très proches, pourraient en fait correspondre à des espèces différentes. Dans cette étude, six populations géographiquement éloignées ont été examinées dans une perspective taxonomique. Des séries de croisements en laboratoire ont tout d'abord confirmé l'isolement reproductif entre deux groupes de populations. Par la suite, des tests de comportement ont mis en évidence une barrière d'isolement pré-zygotique, en l'absence de reconnaissance sexuelle entre mâles et femelles de ces deux groupes. Ces résultats, ainsi que ceux issus d'analyses moléculaires préalables, apportent des preuves convergentes de l'existence de deux espèces séparées. L'examen morphologique n'a pas permis de déceler de caractères méristiques autorisant une discrimination stricte entre Porcellionides pruinosus et l'autre espèce. A partir de la littérature existante, il n'a pas été possible d'assigner l'espèce jumelle à aucun des taxons déjà décrits. Cette étude apporte une lumière nouvelle sur le complexe P. pruinosus, mais révèle aussi la difficulté à identifier et nommer les espèces en l'absence de diagnoses révisées et actualisées du genre Porcellionides.


Full text loading...


Data & Media loading...

Article metrics loading...



Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
    Crustaceana — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation