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Discriminación de género en Gerris remigis: el papel de una señal de onda de superficie
Science (New York, N.Y.)
|December 14, 1979
Resumen
Los varones de las piscinas acuáticas (Gerris remigis) pueden identificar el sexo de los demás utilizando solo señales específicas de los machos. La presencia o ausencia de estas señales es suficiente para una discriminación exacta por sexo en esta especie.
Área de la Ciencia:
- Ecología del comportamiento Ecología del comportamiento.
- Comunicación con los animales Comunicación con los animales
- Biología Sensorial Biología Sensorial
Sus antecedentes:
- Los caminantes acuáticos (Gerris remigis) dependen de las ondas superficiales para varios comportamientos, incluido el apareamiento.
- El reconocimiento exacto del sexo es crucial para el éxito reproductivo en muchas especies.
Objetivo del estudio:
- Para investigar las señales sensoriales utilizadas por los piscadores de agua machos para la discriminación sexual.
- Determinar si los machos de los caminantes acuáticos pueden identificar el sexo basándose únicamente en señales específicas.
Principales métodos:
- Los varones que caminaban por el agua fueron experimentalmente cegados con máscaras.
- Las señales masculinas artificiales generadas por computadora (onda de superficie y contacto corporal) fueron reproducidas a las hembras.
- Se observaron respuestas masculinas a las mujeres con y sin señales de reproducción.
Principales resultados:
- Hombres enmascarados que caminaban por el agua distinguían con precisión entre los sexos.
- Las hembras que emiten señales masculinas fueron percibidas como machos por los machos enmascarados.
- Las hembras que no emiten señales masculinas fueron percibidas como hembras.
Conclusiones:
- Los piscadores de agua machos utilizan la presencia o ausencia de señales específicas de los machos para la discriminación sexual.
- Estas señales por sí solas son suficientes para el reconocimiento preciso del sexo en Gerris remigis.
- Este hallazgo pone de relieve la importancia de las modalidades específicas de la señal en el reconocimiento de mate.
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