Influence of vegetation structure and climatic conditions on abundance of free-living Amblyomma ticks (Acari; Ixodidae) in a Costa Rican dry forest



Palabras clave:

ambient heterogeneity; hard ticks; population dynamics; seasonality; temporal fluctuation


Abstract. Differences in habitats and variation in environmental conditions often cause fluctuation in abundance of animal populations, and the effect of such spatial and temporal variation may affect differently each stage of an animal life cycle. Here we compare the effect of different habitats and environmental conditions (e.g., temperature and precipitation) on the abundance of larvae, nymphs, and adult hard ticks (Amblyomma spp.) in a tropical dry forest. Abundance of larvae was high, but similar in all habitats, but nymphs and adults were more abundant in forested sites. Forested sites likely provide more suitable conditions for survivorship of the three tick stages (larvae, nymphs, and adults) during their host-seeking period, and a larger concentration of potential hosts. We also found that the peak of abundance in all three stages occur during or near the dry season, suggesting a reproductive peak associated to the dry season, but only abundance of nymphs correlated with environmental conditions.


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Cómo citar

Barrantes, G., & Sánchez Quirós, A. C. (2024). Influence of vegetation structure and climatic conditions on abundance of free-living Amblyomma ticks (Acari; Ixodidae) in a Costa Rican dry forest. ACTA ZOOLÓGICA MEXICANA (N.S.), 40(1), 1–16.
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