|Appears in Collections:||Biological and Environmental Sciences Journal Articles|
|Peer Review Status:||Refereed|
|Title:||Variation in the genitalia of the butterfly Maniola-jurtina (Lepidoptera: Satyrinae)|
|Citation:||Goulson D (1993) Variation in the genitalia of the butterfly Maniola-jurtina (Lepidoptera: Satyrinae), Zoological Journal of the Linnean Society, 107 (1), pp. 65-71.|
|Abstract:||The genilalia of animals, particularly insects, are extremely useful taxonomic characters, for they are highly conserved within species yet generally diverge rapidly during specialion: often the only reliable means of separating sibling species is via the morphology of the genilalia. A number of explanations have been proposed to explain this pattern of variation, the most prominent of which is the 'lock-and-key' hypothesis. This hypothesis and others are tested using the meadow brown butterfly, Maniola jurtina (L.), which exhibits variation in the male genitalia. A novel technique is described which enables dissection of copulating couples. Sampling and dissection of male butterflies from 14 populations in southern England was carried out to quantify variation in the genitalia. Mating success and the strength of the male-female bond during copulation was assessed in relation to the dimensions of the male genitalia. The most variable portions of the male genitalia are the distal and dorsal margins of the paired valves. Contrary to the lock-and-key hypothesis, and the more recent sexual selection model, evidence is presented that the most variable portions of the genitalia have no apparent function during copulation, and therefore may not be subject to direct selection. I suggest that neutrality to selection was essential for the evolution of the wide variety in genital morphology currently found in the Lepidoptera.|
|Rights:||The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.|
|goulson_variation_1993.pdf||196.82 kB||Adobe PDF||Under Permanent Embargo Request a copy|
Note: If any of the files in this item are currently embargoed, you can request a copy directly from the author by clicking the padlock icon above. However, this facility is dependent on the depositor still being contactable at their original email address.
This item is protected by original copyright
Items in the Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
If you believe that any material held in STORRE infringes copyright, please contact firstname.lastname@example.org providing details and we will remove the Work from public display in STORRE and investigate your claim.