INBIOSUR   25013
INSTITUTO DE CIENCIAS BIOLOGICAS Y BIOMEDICAS DEL SUR
Unidad Ejecutora - UE
artículos
Título:
DIOECOCESTUS PARONAI FUHRMANN, 1900 (CESTODA, CYCLOPHYLLIDEA) PARASITE OF THE WHITE-TUFTED GREBE ROLLANDIA ROLLAND (QUOY AND GAIMARD, 1824)(PODICIPEDIFORMES) AND A REVIEW OF THE HOST SPECIFICITY IN DIOECOCESTIDAE
Autor/es:
GUAGLIARDO SE; GUAGLIARDO SE; TANZOLA RD; TANZOLA RD; GIGOLA, G; GIGOLA, G
Revista:
Neotropical Helminthology
Editorial:
Aphia
Referencias:
Lugar: Lima; Año: 2019
ISSN:
2218-6425
Resumen:
The family Dioecocestidae Southwell, 1930 largely confined to grebes, has a confounding and poorlyknown systematic composition. Most of its members are known only from their original descriptions andwere not studied since then. Based in two tapeworms with completely separate sexes, Dioecocestusparonai Fuhrmann, 1900 was primarily consigned to Plegadis guarauna (Linnaeus 1766) as the naturalhost and Buenos Aires, Argentina, as the type locality. In the present study specimens of D. paronai aredescribed, data on its biology and host distribution are provided. There were not significatives differencesin the prevalences of males and females grebes. Nor in the abundances between host sexes. Thevariance/mean ratio was 0.426 and the parameter of contagion K= ─0.36, showing an underdispersedpattern of distribution. From its original description, not only P. guarauna was never cited again as host ofthis tapeworm but the remaining six species of the genus Dioecocestus Fuhrmann, 1900 are grebespecialists in the five continents and D. paronai was nevermore found from ibises. The white-tufted grebeRollandia rolland (Quoy & Gaimard, 1824) is rectified as the natural host and it is confirmed the markedspecificity of the family Dioecocestidae in grebes.