Meso-habitat distribution patterns and ecological requirements of two Mediterranean vipers depict weak competition in a contact zone

Our findings, therefore, suggest that species distributions in this contact zone are mainly determined by the environmental conditions, with almost no contribution of competitive pressure. Still, a localized competition might exist due to minor differences in the ecological niches and a marked and unequal reduction of suitable areas for the sympatric populations, which could be favouring V. aspis in small regions of the contact zone. Leer más.