Gastrointestinal digenetic trematodes of Olive Ridley's turtle (Lepidochelys olivacea) from Oaxaca, México. Taxonomy and infracommunity structure
Por:
De León G.P.-P., García-Prieto L., León-Règagnon V.
Publicada:
1 ene 1996
Resumen:
Thirty-two Olive Ridley's turtles (Lepidochelys olivacea Eschsholtz) were collected from the coast of Oaxaca, México, and their digestive tracts were examined for helminths. Eight digenetic trematode species were found in the digestive tracts of 24 of 32 turtles: Adenoqaster serialis, Himasomum lobatus, Pyelosomum renicapite (Pronocephalidae), Pachypsolus irroratus (Pachypsolidae), Enodiotrema megachondrus (Plagiorchiidae), Orchidasma amphiorchis (Telorchiidae), Prosorchis psenopsis (Hemiuridae), and Calycodes anthos (Calycodidae). Oaxaca represents a new locality for all digenean species and L. olivacea represents a new host record for all except O. amphiorchis. Adenogaster serialis was the species with the highest prevalence of infection (53.1%), while E. megachondrus showed the highest abundance (28.2 digeneans/analyzed host). Digenean community structure at the infracommunity level is depauperate and isolationist according to the values of species richness, numbers of worms, and diversity. Vagility, and the possibility of a mixture of populations arriving at the nesting site, as well as broad feeding preferences, are suggested as the main factors that determine the digenean community structure in L. olivacea.
Filiaciones:
De León G.P.-P.:
Instituto de Biología, Univ. Nac. Auton. de México, Apartado Postal 70-153, México D.F., C.P. 04510, Mexico
García-Prieto L.:
Instituto de Biología, Univ. Nac. Auton. de México, Apartado Postal 70-153, México D.F., C.P. 04510, Mexico
León-Règagnon V.:
Instituto de Biología, Univ. Nac. Auton. de México, Apartado Postal 70-153, México D.F., C.P. 04510, Mexico
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