Please use this identifier to cite or link to this item: https://www.arca.fiocruz.br/handle/icict/25557
Title: Seasonal dynamics of Ixodes ricinus on ground level and higher vegetation in a preserved wooded area in southern Europe
Authors: Dantas-Torres, Filipe
Otranto, Domenico
Affilliation: Fundação Oswaldo Cruz. Instituto Aggeu Magalhães. Departamento de Imunologia. Recife, PE, Brasil / Università degli Studi di Bari. Dipartimento di Medicina Veterinaria. Valenzano, Bari, Italy.
Università degli Studi di Bari. Dipartimento di Medicina Veterinaria. Valenzano, Bari, Italy.
Abstract: Ixodes ricinus is a major vector of pathogens affecting animals and humans in Europe. Despite its wide distribution, data on the ecology of I. ricinus in some areas is meager, which might impair the elaboration of reliable models to predict the risk of pathogen transmission in areas where this tick is currently present. Herein, we analyze some aspects of the ecology of I. ricinus in a wooded area of southern Italy. From March 2010 to March 2012, ticks were collected on a monthly basis by dragging and flagging in three different sites in a wooded area located in southern Italy, within the boundaries of the Gallipoli Cognato Forest, in the Basilicata region, southern Italy. Immature ticks were more abundant than adults (immature:adult ratio, 10.5:1). The abundance of larvae on the ground-level vegetation was generally higher than on higher vegetation (19.1 vs. 8.3 ticks per hour), whereas nymphs, males and females were more abundant on the higher vegetation (22.3 vs. 14.2, 2.9 vs. 0.8, 2.7 vs. 1.0 ticks per hour, respectively). Larvae were most abundant in summer (27.4 ticks per hour), whereas nymphs, females, and males peaked in seasons other than summer. This study underlines that I. ricinus is well adapted to southern Italian conditions, where it remains active during the whole year, displaying spatiotemporal distribution patterns that are different from central and north European populations. Remarkably, it points out that the life cycle of I. ricinus in southern Italy may be completed in approximately 1 year. Data generated will be valuable to elaborate better models to predict the distribution of this tick in Europe and to assess the risk of transmitted diseases, particularly Lyme borreliosis and tick-borne encephalitis.
Keywords: Ticks
Ecology
Population
Disease
keywords: Carrapatos
Ecologia
População
Doença
DeCS: Animais
Borrelia / fisiologia
Clima
Ecologia
Vírus da encefalite, transmitidos por carrapatos / fisiologia
Encefalite por Carrapato / transmissão
Fêmea
Florestas
Humanos
Itália / epidemiologia
Ixodes / classificação
Ixodes / virologia
Larva
Estudos longitudinais
Doença de Lyme / transmissão
Masculino
Ninfa
Dinâmica populacional
Temporadas
Issue Date: 2013
Citation: DANTAS-TORRES, F.; OTRANTO, D. Seasonal dynamics of Ixodes ricinus on ground level and higher vegetation in a preserved wooded area in southern Europe. Veterinary Parasitology, v. 192, n. 1–3, p. 253–258, 18 fev. 2013.
DOI: 10.1016/j.vetpar.2012.09.034
ISSN: 1873-2550
Copyright: restricted access
Appears in Collections:PE - IAM - Artigos de Periódicos



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