Factors responsible for Ixodes ricinus nymph abundance: Are soil features indicators of tick abundance in a French region where Lyme borreliosis is endemic?
| Autor: | Nathalie Boulanger, Dominique Schwartz, Laurence Zilliox, Benoît Jaulhac, Jean-Claude George, Damien Ertlen, Valérie Goldstein, Mickaël Schaeffer |
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| Přispěvatelé: | Virulence Bactérienne Précoce : fonctions cellulaires et contrôle de l'infection aigüe et subaigüe, Université de Strasbourg (UNISTRA), Virulence bactérienne précoce : fonctions cellulaires et contrôle de l'infection aiguë et subaiguë, Institut de Science des Matériaux de Mulhouse (IS2M), Centre National de la Recherche Scientifique (CNRS)-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), Laboratoire Image, Ville, Environnement (LIVE), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2018 |
| Předmět: |
Nymph
0301 basic medicine Ixodes ricinus Endemic Diseases 030231 tropical medicine Zoology Forests Tick Microbiology Humus Soil 03 medical and health sciences Ticks 0302 clinical medicine Borrelia burgdorferi Group Animals Acari Lyme borreliosis Lyme Disease Ixodes biology Ricinus Temperature Humidity Hydrogen-Ion Concentration biology.organism_classification Alsace [SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology 030104 developmental biology Infectious Diseases Borrelia burgdorferi Insect Science Parasitology France Nymph abundance Ixodidae |
| Zdroj: | Ticks and Tick-Borne Diseases Ticks and Tick-Borne Diseases, 2018, 9 (4), pp.938-944. ⟨10.1016/j.ttbdis.2018.03.013⟩ |
| ISSN: | 1877-959X 1877-9603 |
| Popis: | In Europe, the hard tick Ixodes ricinus (Acari: Ixodidae) is the main vector of Lyme borreliosis spirochetes (Borrelia burgdorferi sensu lato group). A field study was conducted to evaluate the abundance of Ixodes nymphs in the French region of Alsace, where Lyme borreliosis is endemic, and to determine whether environmental factors such as soil moisture and composition may be associated with nymph abundance. In the ten sites studied, ticks were collected by drag sampling from March to October in 2013 and 2014. Temperature, relative humidity, saturation deficit, soil pH, humus composition and type of vegetation were recorded at each site. The abundance of I. ricinus was highly variable from one site to another. Inter-annual variations were also observed, since the nymph abundance were higher in 2013 than in 2014. This study shows that humus type can be indicative of nymph abundance. Three types of humus were observed: (1) moder, (2) mull, and (3) mull-moder humus. One of them, moder humus, which is characterized by a thick layer of fragmented leaves, was found in multivariate analyses to be strongly associated with the nymph abundance. This study demonstrates that factors such as saturation deficit do not suffice to explain the differences in nymph abundance among sites. The composition of the soil and especially the type of humus should also be taken into consideration when assessing acarological risk. |
| Databáze: | OpenAIRE |
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