Resumen

SILVA-SANCHEZ, Carmen J; AREVALO, Carmen; VILORIA, Nurialby  y  ROMERO PALMERA, José. Prevalence of hemoparasites in wild birds, in the eastern zone of the Falcon state, Venezuela 2013-2015. Bol Mal Salud Amb [online]. 2016, vol.56, n.2, pp.172-184. ISSN 1690-4648.

Blood parasites are transmitted by hematophagous vectors and can cause negative impacts on host habits and as a consequence, imbalances in the biological diversity of wildlife species. The objective of this study was to estimate the prevalence of hemoparasites in wild birds of eastern Falcon state, Venezuela between 2013-2015. For this, seven localities were selected, with characteristics of migratory steps that presented fragmented vegetation, considering the two climatic periods. For the capture of the birds, mist networks were used and their taxonomic classification was based on the physical characters in the field and the photographic records in the laboratory. The study population consisted of 797 individuals from 85 species and 25 families. Blood samples were taken from the ulnar vein, for the later realization of stretches that were colored with the solution of Giemsa. The parasitological diagnosis was performed by light microscopy (1000x), identifying 144 positive individuals with a general prevalence of 18.07%; for the genus Plasmodium 9.66%, Haemoproteus 8.66%, Trypanosoma 0.75% and microfilariae 1.00%; Being the family most affected Columbidae and the susceptible individuals were Thryothorus rutilus and Nemosia pileata. In this survey, 8 new host-hemopatraase registers were included, seasonal periodicity was evidenced, as well as infections in resident and juvenile birds, whose ranges of flights are short so it is inferred that in the study sites are present the elements of The triad epidemiology, host, vectors and parasites.

Palabras clave : Birds; Plasmodium; Haemoproteus; Trypanosoma; microfilaria; Prevalence.