Occurrence of Amblyomma dissimile on wild crocodylians in southern Mexico.
Ticks are common ectoparasites of amphibians and reptiles but very few reports of such parasites on crocodylians exist worldwide. Herein, we report the first detailed observations of Amblyomma dissimile Koch, 1844 on the 3 crocodylian species present in Mexico, with the first report of tick parasitism on Crocodylus acutus and the second on Caiman crocodilus chiapasius. This is also the first report of A. dissimile in the state of Quintana Roo. Proportions of infested individuals found in this study ranged from 0.51 to 1.96%, suggesting that tick parasitism in crocodylians is likely opportunistic and occurs when individuals leave the water for terrestrial activities. Tick parasitism does not represent a major threat to crocodylians. The increasing habitat destruction/fragmentation and cattle expansion in southeastern Mexico, however, could increase tick populations and trigger tick parasitism and tick-borne diseases in herpetofauna and other vertebrates, including humans. Thus, studies are needed to better understand these relationships.
Centro del Cambio Global y la Sustentabilidad en el Sureste, A.C., Calle Centenario del Instituto Juárez s/n, Col. Reforma, CP 86080 Villahermosa, Tabasco, México.
Pierre
P
Charruau
Jonathan
J
Pérez-Flores
J Rogelio
JR
Cedeño-Vázquez
David
D
Gonzalez-Solis
Giovany A
GA
González-Desales
Octavio
O
Monroy-Vilchis
Marco A
MA
Desales-Lara
D000489:Alligators and Crocodiles / Q000469:parasitology*; D000818:Animals; D026863:Ixodidae; D008800:Mexico / Q000453:epidemiology; D013984:Tick Infestations / Q000453:epidemiology / Q000662:veterinary*