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Comportamiento animal: coalición entre los machos del cangrejo violinista

Patricia R Y Backwell¹, Michael D Jennions

¹School of Botany and Zoology, The Australian National University, Canberra ACT 0200, Australia. pat.backwell@anu.edu.au

|July 23, 2004

Resumen

Los cangrejos violinistas australianos ayudan a los vecinos a defender sus territorios. Este comportamiento cooperativo lo sugiere.

Área de la Ciencia:

Comportamiento animal Comportamiento animal.
Ecología Ecología Ecología.
Biología evolutiva Biología evolutiva.

Sus antecedentes:

La territorialidad es común en el reino animal.
La cooperación en defensa territorial rara vez se ha observado.

Objetivo del estudio:

Para investigar la defensa territorial cooperativa en los cangrejos violinistas australianos.
Para determinar si los residentes ayudan a los vecinos contra los intrusos.

Principales métodos:

Estudios observacionales de los cangrejos violinistas australianos en su hábitat natural.
Registro de casos de intrusiones territoriales y asistencia de vecinos.

Principales resultados:

Se observó que los cangrejos violinistas ayudaban a los cangrejos vecinos en la defensa de sus territorios.
Esta asistencia se produjo estratégicamente contra los intrusos.

Conclusiones:

La defensa territorial cooperativa existe en los cangrejos violinistas australianos.
Ayudar a un vecino familiar es una estrategia menos costosa que renegociar los límites.

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