Diversidade de helmintos intestinais em mamíferos silvestres e domésticos na Caatinga do Parque Nacional Serra da Capivara, Sudeste do Piauí, Brasil

Abstract

ResumoEstudos sobre biodiversidade permitem avaliações ecossistêmicas e monitoramentos de impactos e mudanças ambientais. A diversidade parasitária pode refletir o processo coevolutivo entre parasitos e hospedeiros, e mudanças ambientais que permitem a perda, ganho ou a manutenção das espécies nesse processo. O presente trabalho utilizou espécies/morfotipos de ovos de helmintos encontrados em fezes de sete mamíferos silvestres (os grupos Dasypodidae e grandes felinos, e as espécies: Tamandua tetradactyla, Cebus apella, Alouatta caraya, Cerdocyon thous, Pecari tajacu) e dois domésticos (Canis familiaris e Sus scrofa), que cohabitam o Parque Nacional Serra da Capivara (PNSC) e seu entorno, para analisar a diversidade dos helmintos intestinais desses mamíferos. Neste trabalho, utilizou-se achados da fauna helmintológica de mamíferos silvestres e domésticos, para avaliar um possível fluxo de helmintos entre estes dois grupos hospedeiros usando Unweighted Pair Group Method with Arithmetic Mean (UPGMA) dos hospedeiros com base na composição de suas faunas helmintológicas. Os resultados indicam que a região do PNSC, ainda mantém condições ambientais que ainda propiciam a manutenção da composição da fauna de helmintos de mamíferos silvestres, diferente da encontrada nos animais domésticos.Palavras-chave: Helmintos, diversidade, Caatinga, Parque Nacional Serra da Capivara, mamíferos. AbstractBiodiversity studies allow ecosystem assessment and monitoring of environmental changes and impacts. Parasite diversity could reflect the host/ parasite coevolutionary process and the environment changes that permit the loss, gain or maintenance of species. This survey used species/morphotypes of helminths eggs found in feces from seven wild mammal species (the groups Dasypodidae and Large Cats, and Tamandua tetradactyla, Cebus apella, Alouatta caraya, Cerdocyon thous, Pecari tajacu) and from two domestic species (Canis familiaris and Sus scrofa), which occur within the Serra da Capivara National Park (PNSC) and surrounding areas in order to analise the diversity of mammal intestinal helminths. This work used the helminthological fauna findings of wild and domestic mammals, to consider a possible helminth flux between these two host groups using Unweighted Pair Group Method with Arithmetic Mean (UPGMA) of the hosts based on helminthological fauna composition. The results indicate that the region of the PNSC still maintains environmental conditions that still keep wild mammal helminthological fauna composition different from the one found for domestic mammals.

Composition of Medium and Large Mammals in Forest Reserve in the Cerrado of Brazil Central

“…Animal occurrence studies provide evidence of interest to conservation and other biological aspects. In this study, there have been many domestic dogs records (Canis familiaris) that enter mainly (VARZONE et al, 2008;BRANDÃO et al, 2009;BRAGA et al, 2010). The ecological interactions possibility between wild mammals and pet signals need an action to a better local managing for biodiversity conservation (SAMPAIO; SCHMIDT, 2013) and for public health.…”

First record of intestinal parasites in a wild population of jaguar in the Brazilian Atlantic Forest

“…Studies related to the investigation of intestinal parasites in wild jaguars are scarce, and most of the available information for the species comes from individuals housed in captivity (e.g., OTTO, 1974;PATTON et al, 1986;MÜLLER et al, 2005;CASTRO;ALBUQUERQUE, 2008;FURTADO;FILONI, 2008;VIEIRA et al, 2008;BRANDÃO et al, 2009). Nevertheless, the data available in the scientific literature represent a total of five Phyla and 15 Families of jaguar intestinal parasites.…”

New records of three species of nematodes in Cerdocyon thous from the Brazilian Pantanal wetlands

“…There are reports of nematodes infecting C. thous in different Brazilian biomes; however, the majority of studies have concentrated on the Atlantic Forest and Caatinga biomes (VICENTE et al, 1997;SANTOS et al, 2003;DUARTE, 2007;GRIESE, 2007;VIEIRA et al, 2008;BRANDÃO et al, 2009;LIMA, 2009;RIBEIRO et al, 2009;MAGALHÃES-PINTO et al, 2011;LIMA et al, 2013). In the Pantanal wetlands, some nematodes have been reported in C. thous, such as Aelurostrongylus sp., Angiostrongylus sp., Dirofilaria repens, and Dirofilaria sp.…”