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PARASITES OF Didelphis aurita OPOSSUMS CAPTURED IN URBAN ENVIRONMENTS FROM SOUTHEASTERN BRAZIL

MARCOS ANTONIO BEZERRA SANTOS.
Tese em Português | VETTESES | ID: vtt-213165

Resumo

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Marsupials of the genus Didelphis consist of six known species with occurrence limited to the American continent. Five of those species belonging to two groups occur in South America: D. marsupialis and D. aurita of the D. marsupialis-group, and D. albiventris, D. pernigra, and D. imperfecta of the D. albiventris-group. A sixth species of this genus is the D. virginiana opossum, which up to date is only reported in North and Central America, from Canada to Costa Rica (Garder, 2008). In Brazil, four species of this genus are described: D. albiventris occurring primarily in the biom Cerrado, D. aurita in the Atlantic forest, and D. imperfecta that along with D. marsupialis inhabits in the Amazon region (Faria and Melo, 2017; Gardner, 2008). These opossums are well adapted to human dwellings, and are frequently found on the roof of houses, hollows of trees and other shelters within the cities and peripheral areas. They have twilight and nocturnal habits, and are considered synanthropic animals due to the adaptive efficiency developed over history (Jansen, 2002). Didelphis spp. co-inhabits with humans and domestic animals in the rural and urban environments, which makes these marsupials potential disseminators of zoonotic pathogens (Melo et al., 2016; Muller et al., 2005). Parasites found in Didelphis spp. are very diverse, consisting of arthropods, helminths and protozoa. Many of these parasites affect the health of their hosts causing disease or even death of the animal. Some of them, are also important for public health, since they may be vectors of zoonotic pathogens (i.e. ticks and fleas), or be the etiological agent of human diseases (i.e., gastrointestinal helminths and protozoa) (Castro et al., 2017; Muller et al., 2005). Among the arthropods found parasitizing these opossums, ticks and fleas are frequently detected, and due the capacity of these ectoparasites to transmit pathogens, they play important role on the dissemination of zoonotic agents among humans, wild and domestic animals (Linardi, 2006; Muller et al., 2005). Arthropod-borne pathogens that occur in Didelphis spp. and are transmitted by ticks and fleas, include Rickettsia spp., Borrelia spp., Ehrlichia spp. and Anaplasma spp., which are epidemiologically important
Biblioteca responsável: BR68.1