Resumen: Entre abril de 2007 y octubre de 2008, se recogieron 367 pieles de corzo en distintas zonas de Galicia. Las muestras se tomaron lo más pronto posible, tras la muerte del animal, para evitar pérdida de ectoparásitos; se cuantificaron los ejemplares de cada uno de los estadios de desarrollo (larvas, ninfas y adultos) y se conservaron en alcohol hasta su posterior identificación. Se encontraron ectoparásitos de tres grupos diferentes: Ixodidae, Mallophaga e Hippoboscidae. En 305 animales (83,1%) se encontraron garrapatas pertenecientes a la familia Ixodidae, con predominio de la especie Ixodes ricinus (n=305, 83,1%) y en mucha menor proporción se identificó Dermacentor marginatus (n=1, 0,3%). La localización preferente de las garrapatas fue en las ingles, axilas, región medial de las extremidades y cuello. El único ejemplar de D. marginatus hallado fue una hembra adulta, mientras que de I. ricinus, se observaron las tres formas de desarrollo, siendo los adultos los más frecuentes (n=302, 82,3%) y en menor proporción las ninfas (n=167, 45,5%) y larvas (n=100, 27,2%). La intensidad de infestación media fue de 43 garrapatas por animal; la mayoría adultos (31 adultos), seguidos de ninfas (17) y larvas (11). La relación entre hembras y machos fue de 2,94. Además, en 12 individuos (3,3%) se hallaron piojos (Mallophaga) de la especie Trichodectes meyeri y dípteros, Hippobosca equina (n=12, 3,3%) y Lipoptena cervi únicamente en 1 (0,3%) animal.

Palabras clave: corzo, ectoparásitos, Galicia, Ixodidae, Mallophaga, Hippobosca.

Abstract: Between April 2007 and October 2008, 367 roe deer skins were collected in different areas of Galicia during hunting season for this wild ruminant. The samples were taken as soon as possible to prevent loss of ectoparasites. Ectoparasites collected were preserved in alcohol (70%) for later identification following key Gil-Collado et al. (1979), Walker (1994) and Estrada-Peña et al. (2004). In animals were infected ticks, were collected and quantified all copies of each stages of development (larvae, nymphs and adults). In all roe deer studied were found four types of ectoparasites: Ixodidae, Mallophaga, Melophagus and Hippoboscidae. In 83.1% of roe deer studied were found ticks belonging to Ixodidae family, with predominance of the specie Ixodes ricinus (83.1%) and lower was identified Dermacentor marginatus (0.3%, only one roe deer). Typically located of ticks were in lower body, groin area, armpits, medial region of limbs and
neck. Were present different stages of I. ricinus, although were more frequent adults (82.2%), followed by nymphs (45.6%) and larvae (27.2%). The mean intensity of infestation was 43 ticks, majority was adults (31 adults) and fewer nymphs (17) and larvae (11) were found. The relationship between females and males was 2.94. The only Dermacentor marginatus parasitized roe deer had an adult female. In 3.1% of roe deer were found Mallophaga lice infestations of Trichodectes meyeri specie. It was also observed in 3.3% of the samples the presence of Hippobosca equina, while we observed only a deer (0.3%) infested by Melophagus ovinus. This study found a high percentage of roe deer infested by ectoparasites, especially ticks of Ixodes ricinus specie.

Keywords: roe deer, Galicia, infestation, ectoparasites, ticks.

DOI: 10.7325/Galemys.2010.NE.A15