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ESTRUTURA DAS INFRACOMUNIDADES DE NEMATOIDES ESTRONGILÍDEOS (NEMATODA: STRONGYLIDAE) DO CECO DE Equus caballus NATURALMENTE INFECTADOS, PROVENIENTES DA REGIÃO METROPOLITANA DO RIO DE JANEIRO, BRASIL

1999; SciELO; Volume: 23; Issue: 1-2 Linguagem: Inglês

10.4067/s0716-07201999000100005

0717-6198

M. P. S. Maior, Maria de Lurdes de Azevedo Rodrigues, Débora Henrique da Silva Anjos, ABISAIR A. DE ANDRADE, José Luis Luque,

Parasitic Diseases Research and Treatment

ESTRUCTURE OF INFRACOMMUNITIES OF STRONGYLID NEMATODES (NEMATODA: STRONGYLIDAE) OF CECUM OF Equus caballus NATURALLY INFECTED,FROM METROPOLITANA REGION OF RIO DE JANEIRO STATE; BRAZIL The strutucture of the infracommunities parasitic nematodes in equines from Metropolitana Region of Rio de Janeiro State was analyzed. Patterns in the parasite diversity and interspecific relationships were observed. Moreover, the prevalence and abundance of the strongylid nematodes were calculated. Thirty-three equines were necropsied, and were collected 8,640 helminths (6,078 belonging to Strongylidae) from the intestinal cecum. Dominance among the Cyathostominae species was not observed. Coronocyclus coronatus (90.9%, 60), Cylicostephanus calicatus (87.9%, 48.9) and Strongylus vulgaris (84.8%, 24), were more prevalent and abundance species. Cylicostephanus brevicapsulatus showed highest values of dispersion and aggregation. Three infrapopulations (2, 3 and 15) showed the same parasite richness (3), however the value obtained from Shannon and Pielou indices were different because the unequal evenness of these samples. From 182 possible associated species pairs, only 8 showed significance association and covariation.