Movements and morphology under sexual selection: tsetse fly genitalia
artículo original
Ver/
Fecha
2010-04-17Autor
Briceño Lobo, Daniel
Wegrzynek, D.
Chinea Cano, E.
Eberhard Chabtree, William G.
Dos Santos Rolo, T.
Metadatos
Mostrar el registro completo del ítemResumen
SHÖN (2009, Ethology Ecology & Evolution 21: 161–172) pointed out that in order
to understand the functional morphology of sexually selected structures that are used
as signaling devices in birds, it is crucial to understand how these structures move during
sexual interactions. This insight applies not only to bird feathers, but also to many
other types of possible signaling devices, including male genitalia. This note highlights
the need for studies of the behavior of genitalia, and describes two promising techniques,
using a tsetse fly as an example. Observations of this species revealed otherwise
cryptic, highly rhythmic and forceful thrusting, pinching, pressing, and scraping movements
by the male’s genitalia within the female’s body that have no obvious relation to
sperm transfer. Thus even though on the outside the male`s body is nearly motionless
during long lapses during copulation, the female is subject to a barrage of possible
stimulation from his genitalia during copulation. Similar studies are needed in other
groups to understand the functional significance of genital morphology.
External link to the item
10.1080/03949370.2010.505581
artículo (arbitrado)--Universidad de Costa Rica. Escuela de Biología, 2010. Este documento es privado debido a limitaciones de derechos de autor
Colecciones
- Biología [1616]