Eutrombicula alfreddugesi is prevalent across eastern and central North America. There is also evidence of E. alfreddugesi scattered across Central and South. Abstract. I collected larvae of Eutrombicula alfreddugesi for the first time parasitizing Gerrhonotus infernalis, Sceloporus poinsetti, S. jarrovii, and S. grammicus. Padrões de parasitismo por Eutrombicula alfreddugesi (Oudemans) (Acari, Trombiculidae) em três espécies de Tropidurus Wied (Squamata, Tropiduridae) do.

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Once on a vertebrate host, the larvae rapidly run around until they find a fold. Their results suggest that ectoparasites do not represent a negative factor to denser populations, which would dilute the intensity alffreddugesi infestation across the aggregation.

Experimental and Applied AcarologyAmsterdam, Arthropod and filarioid parasites associated with wild rodents in the northeast marshes of Buenos Aires, Argentina.

The larval stage actively seeks out vertebrate hosts to parasitize, moving very rapidly. To resist Bdellidae mites, chigger mites have evolved a useful anti-predator behavior. Abstract Microclimatic and vegetative effects on the population size and activity patterns of larval Eutrombicula alfreddugesi Oudemans, Acari: Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts.

A large change in the shape or structure of an animal that happens as the animal grows. ADW doesn’t cover all species in the world, nor does it include all the latest scientific information about organisms we describe. In Tropidurus itambere and T. Postlarval chiggers are not found in vertebrate nests or underneath tree-bark and, contrary to mainstream belief, they are not found on Spanish moss. Tropidurus itambere has two pockets in the neck and another in the inguinal region, and had the highest intensity of infestation.


One possibility is that guarding and protecting a set of mites may play an important role in decreasing the chances of parasite exchanges and transmission of diseases. Trombiculidade in a restinga lizard community. This is is how they sense vertebrates approaching. The results of the Mann-Whitney test for differences in intensity of parasitism between body sides indicated that the intensity of parasitism of the inguinal region of T.

Eutrombicula Alfreddugesi

The length alreddugesi this parasitic association can range from two to 48 days and depends on whether the host is warm-blooded or cold-blooded. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control.

Patterns of infestation by chigger mites in four diurnal lizard species from a restinga habitat Jurubatiba of Southeastern Brazil.

Geographic Range Eutrombicula alfreddugesi is prevalent across eastern and central North America. This may suggest that the sites of infestation are not isolated and that mites may migrate from site to site. Lastly, legs project from the idiosoma six for larvae, eight for deutonymphs and adults and setae are visible throughout the idiosoma, both dorsally and ventrally.


Eutrombicula Alfreddugesi | This chigger was captured on my … | Flickr

Although chigger populations existed eutrombiccula the forest edge, larger populations concentrated in short- to tall-grass transition zones. Extensive savannas are found in parts of subtropical and tropical Africa and South America, and in Australia. You could not be signed in.

Despite the observed tendency of increasing intensity of infestation with increasing host size only for T.

Ewing, ; Loomis, Even when data from the same species from different areas are compared, as in the case of T. Therefore, sexual reproduction in E.


The distribution of larval Eutrombicula alfreddugesi Acari: We searched for ectoparasites in the skin folds and on the body of each lizard. Here we discuss the patterns of parasitism by larvae of Eutrombicula alfreddugesi on three species of Tropidurus Wied, from Cerrado habitat of Central Brazil, evaluating parameters such as the intensity and prevalence of parasitism, and parasite distribution over the hosts’ bodies.

These habitats are ideal for the hosts that the larvae parasitize. Citing articles via Web of Science