Selection for uniformity: xenophobia and invasion success.

• Autores: Philip T. Starks
• Localización: Trends in ecology and evolution, ISSN 0169-5347, Vol. 18, Nº 4, 2003, pág. 159
• Idioma: inglés
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• Resumen

  • One reason why ants fascinate us is the seemingly bipolar nature of their social interactions: harmonious cooperation within, and extreme aggression across, colonies. Recent work by Giraud and colleagues and by Tsutsui and colleagues explores a behavioral outlier in this dichotomy, the invasive Argentine ant Linepithema humile. Introduced L. humile often form unicolonial societies in which conflict between colonies is absent. Using theoretical, laboratory and field-based research, these researchers address an evolutionary paradox: the evolution of indiscriminate altruism.