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  1. Chain reactions linking acorns to gypsy moth outbreaks and Lyme disease risk.

    Article - En anglais

    In eastern U.S. oak forests, defoliation by gypsy moths and the risk of Lyme disease are determined by interactions among acorns, white-footed mice, moths, deer, and ticks.

    Experimental removal of mice, which eat moth pupae, demonstrated that moth outbreaks are caused by reductions in mouse density that occur when there are no acorns.

    Experimental acorn addition increased mouse density.

    Acorn addition also increased densities of black-legged ticks, evidently by attracting deer, which are key tick hosts.

    Mice are primarily responsible for infecting ticks with the Lyme disease agent.

    The results have important implications for predicting and managing forest health and human health.

    Mots-clés Pascal : Chaîne alimentaire, Relation trophique, Gland chêne, Défoliation, Pullulation, Relation hôte agent, Relation hôte parasite, Gestion population, Gestion forestière, Prévention, Lyme maladie, Borréliose, Spirochétose, Bactériose, Infection, Forêt, Etats Unis, Amérique du Nord, Amérique, Etude expérimentale, Quercus, Fagaceae, Dicotyledones, Angiospermae, Spermatophyta, Arbre forestier feuillu, Lymantria dispar, Lymantriidae, Lepidoptera, Insecta, Arthropoda, Invertebrata, Odocoileus virginianus, Artiodactyla, Ungulata, Mammalia, Vertebrata, Peromyscus leucopus, Rodentia, Borrelia burgdorferi, Spirochaetaceae, Spirochaetales, Bactérie, Déprédateur, Ixodidae, Ixodida, Parasitiformes, Acari, Arachnida, Ixodes scapularis, Cervidae, Muridae

    Mots-clés Pascal anglais : Trophic chain, Trophic relation, Acorn, Defoliation, Outbreak, Host agent relation, Host parasite relation, Population management, Forest management, Prevention, Lyme disease, Borrelia infection, Spirachaetosis, Bacteriosis, Infection, Forests, United States, North America, America, Experimental study, Quercus, Fagaceae, Dicotyledones, Angiospermae, Spermatophyta, Hardwood forest tree, Lymantria dispar, Lymantriidae, Lepidoptera, Insecta, Arthropoda, Invertebrata, Odocoileus virginianus, Artiodactyla, Ungulata, Mammalia, Vertebrata, Peromyscus leucopus, Rodentia, Borrelia burgdorferi, Spirochaetaceae, Spirochaetales, Bacteria, Pest, Ixodidae, Ixodida, Parasitiformes, Acari, Arachnida

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 98-0220818

    Code Inist : 002A14B04B. Création : 11/09/1998.