Frecuencia de pérdida de la cola en un ensamble de lagartijas de Oaxaca, México

Aarón García-Rosales, Matías Martínez-Coronel

Resumen


El presente estudio evaluó la influencia de la edad, el sexo y el hábitat sobre la frecuencia de pérdida de la cola en tres especies de lagartijas endémicas a México. Los taxa tratados son Sceloporus bicanthalis, S. subpictus y Mesaspis gadovii, las cuales son simpátricas en las montañas de los Valles Centrales de Oaxaca. Las diferencias en la frecuencia de pérdida de la cola fueron evaluadas por sexo, edad, hábitat y especie mediante una prueba de Chi cuadrada en un tamaño de muestra de 259 organismos recolectados entre abril de 2010 y marzo de 2011. Los resultados indican que la estructura del hábitat, el sexo o la edad de los individuos (excepto en M. gadovii) no influyeron de manera significativa en la frecuencia de mutilación de la cola en las tres especies analizadas. Sin embargo, se presentaron diferencias significativas entre especies, estas diferencias pueden ser consecuencia del comportamiento agonístico propio de cada especie, y de una presión de depredación diferente para cada taxon.


Palabras clave


Autotomía caudal; especies endémicas; comportamiento

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Referencias


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DOI: https://doi.org/10.21829/azm.2016.322945

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