NDLI: Allometry in damselfly ornamental and genital traits: solving some pitfalls of allometry and sexual selection

Content Provider	Springer Nature Link
Author	Córdoba Aguilar, A. López Valenzuela, A. Brunel, O.
Copyright Year	2010
Abstract	Static allometry of sexually selected traits has been the subject of intense research recently. However, some pitfalls for this kind of research are: (a) the functions of sexual traits are largely unknown; (b) more than one body size indicator must be measured; and, (c) allometry must be examined under different environmental circumstances to see whether allometric values change. Using Hetaerina americana damselflies, we investigated the type of allometry exhibited by a wing red spot and aedeagal width. These traits are positively selected during pre-copulatory male-male contests and post-copulatory female stimulation, respectively. As body size indicators, we used wing length and head width. It has been documented that expression of both sexual traits varies throughout the year. Thus, allometry was examined in different times of the year. We also investigated the allometry of aedeagal width and vaginal width at the zone where female stimulation takes place. We found no clear pattern of any allometric relationship for male and female traits and for both body size indicators at all times sampled. Our results contrast with patterns of negative allometry exhibited by genital traits in other animals.
Starting Page	1141
Ending Page	1146
Page Count	6
File Format	PDF
ISSN	00166707
Journal	Genetica
Volume Number	138
Issue Number	11-12
e-ISSN	15736857
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-10-12
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Allometry Ornament Genitalia Function Seasonal Damselfly Microbial Genetics and Genomics Human Genetics Plant Genetics & Genomics Animal Genetics and Genomics Life Sciences
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science Medicine Animal Science and Zoology Insect Science

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