Artículos de revistas
Sources of pheromones in the lizard Liolaemus tenuis
Fecha
2002Registro en:
Revista Chilena de Historia Natural, Volumen 75, Issue 1, 2018, Pages 141-147
0716078X
10.4067/S0716-078X2002000100013
Autor
Labra, Antonieta
Escobar, Carlos A.
Aguilar, Paz M.
Niemeyer, Hermann M.
Institución
Resumen
Experimental tests were conducted with the lizard Liolaemus tenuis (Tropiduridae), to determine the potential sources of pheromones used in its chemical communication, centered in the phenomenon of self-recognition. During the post-reproductive season, feces of both sexes and secretions of precloacal pores (present only in males) were tested. Stimuli were presented to lizards spread on rocks, and the number of tongue-flicks (TF) to the rocks was used as a bioassay to determine pheromone recognition. Feces contained pheromones involved in self-recognition, since lizards showed less TF confronted to rocks with suspensions of their own feces than with suspensions of feces of conspecifics or with water (control). In order to assess the chemical nature of self-recognition pheromones, feces were submitted to a sequential extraction with three solvents of increasing polarity, thereby obtaining three feces fractions. There were no differences in TF towards rocks with different fractions with o