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Abstract
Four species of Neotropical ticks, Amblyomma mixtum, Amblyomma cajennense, Amblyomma tonelliae and Amblyomma sculptum (formerly included in the catch-all name A. cajennense), have an allopatric distribution in much of their range, with areas of parapatry for at least two of them. We inferred the abiotic niches of these organisms using coefficients of a harmonic regression of the temperature and the Normalized Difference Vegetation Index (NDVI, reflecting [ver mas...]
dc.contributor.authorEstrada-Peña, Agustín
dc.contributor.authorTarragona, Evelina Luisa
dc.contributor.authorVesco, Umberto
dc.contributor.authorde Meneghi, Daniele
dc.contributor.authorMastropaolo, Mariano
dc.contributor.authorMangold, Atilio Jose
dc.contributor.authorGuglielmone, Alberto
dc.contributor.authorNava, Santiago
dc.date.accessioned2018-04-17T14:42:55Z
dc.date.available2018-04-17T14:42:55Z
dc.date.issued2014-12
dc.identifier.issn0020-7519
dc.identifier.issn1879-0135
dc.identifier.otherhttps://doi.org/10.1016/j.ijpara.2014.08.007
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S002075191400229X#!
dc.identifier.urihttp://hdl.handle.net/20.500.12123/2262
dc.description.abstractFour species of Neotropical ticks, Amblyomma mixtum, Amblyomma cajennense, Amblyomma tonelliae and Amblyomma sculptum (formerly included in the catch-all name A. cajennense), have an allopatric distribution in much of their range, with areas of parapatry for at least two of them. We inferred the abiotic niches of these organisms using coefficients of a harmonic regression of the temperature and the Normalized Difference Vegetation Index (NDVI, reflecting plant stress) from remotely sensed data from MODIS satellites with 0.05° spatial resolution. Combinations of coefficients describing the phenology of these two variables pointed to divergent niche preferences, compatible with previous events of vicariance among the species. Amblyomma cajennense has been recorded in areas with small variations in temperature and NDVI. The remaining species were recorded in areas with large variations. The maximum environmental niche overlap was ∼73.6% between A. mixtum and A. cajennense and 73.5% between A. tonelliae and A. sculptum. Projecting these inferences on the geographical space revealed probable areas of sympatry or parapatry between A. mixtum and A. cajennense or between A. tonelliae and A. sculptum, the latter of which was confirmed with field collections. The A. sculptum distribution overlaps with that of A. tonelliae in northern Argentina and Paraguay; parapatry occurs at one extreme of the conditions occupied by both species. Compared with areas of allopatry, sites with both species had consistently lower temperatures, except for 10–12 weeks during the summer, and higher NDVI values throughout the year. We hypothesise that the overlap between A. tonelliae and A. sculptum resulted from secondary contact between populations, with A. sculptum adapting to sites with high water availability to balance high summer temperatures. Additional surveys of the areas of spatial overlap among these species are necessary to elucidate the forces driving their evolution and their adaptation to the environment.eng
dc.formatapplication/pdfeng
dc.language.isoeng
dc.rightsinfo:eu-repo/semantics/restrictedAccesseng
dc.sourceInternational journal for parasitology 44 (14) : 1081-1089. (December 2014)eng
dc.subjectAmblyomma cajennensees_AR
dc.subjectMedio Ambientees_AR
dc.subjectEnvironmenteng
dc.subjectSelección Divergentees_AR
dc.subjectDivergent Selectioneng
dc.subject.otherGarrapatases_AR
dc.titleDivergent environmental preferences and areas of sympatry of tick species in the Amblyomma cajennense complex (Ixodidae)eng
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.description.origenEEA Rafaelaes_AR
dc.description.filFil: Estrada-Peña, Agustin. University of Zaragoza. Faculty of Veterinary Medicine. Department of Animal Pathology; Españaes_AR
dc.description.filFil: Tarragona, Evelina Luisa. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Vesco, Umberto. University of Torino. Department of Veterinary Medicine; Italiaes_AR
dc.description.filFil: de Meneghi, Daniele. University of Torino. Department of Veterinary Medicine; Italiaes_AR
dc.description.filFil: Mastropaolo, Mariano. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias; Argentinaes_AR
dc.description.filFil: Mangold, Atilio Jose. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Guglielmone, Alberto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Nava, Santiago. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.subtypecientifico


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