Journal
PARASITOLOGY RESEARCH
Volume 121, Issue 8, Pages 2241-2252Publisher
SPRINGER
DOI: 10.1007/s00436-022-07556-x
Keywords
Ecological niche modelling; Species distribution modelling; Range expansion
Categories
Funding
- Projekt DEAL
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Tick-borne diseases are a significant health problem worldwide, which could become more important in Europe due to changing climatic conditions. This study uses an ecological niche modelling approach to project the future distribution of three tick species in Europe. The models indicate that these tick species will benefit from climate change, leading to range expansions and potential co-occurrence in northeastern and central Europe. This could increase the risk of tick-borne diseases.
Tick-borne diseases are a major health problem worldwide and could become even more important in Europe in the future. Due to changing climatic conditions, ticks are assumed to be able to expand their ranges in Europe towards higher latitudes and altitudes, which could result in an increased occurrence of tick-borne diseases. There is a great interest to identify potential (new) areas of distribution of vector species in order to assess the future infection risk with vector-borne diseases, improve surveillance, to develop more targeted monitoring program, and, if required, control measures. Based on an ecological niche modelling approach we project the climatic suitability for the three tick species Ixodes ricinus, Dermacentor reticulatus and Dermacentor marginatus under current and future climatic conditions in Europe. These common tick species also feed on humans and livestock and are vector competent for a number of pathogens. For niche modelling, we used a comprehensive occurrence data set based on several databases and publications and six bioclimatic variables in a maximum entropy approach. For projections, we used the most recent IPCC data on current and future climatic conditions including four different scenarios of socio-economic developments. Our models clearly support the assumption that the three tick species will benefit from climate change with projected range expansions towards north-eastern Europe and wide areas in central Europe with projected potential co-occurrence. A higher tick biodiversity and locally higher abundances might increase the risk of tick-borne diseases, although other factors such as pathogen prevalence and host abundances are also important.
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