| habitats, dispersion and invasion of sylvatic triatoma dimidiata (hemiptera: reduviidae: triatominae) in petén, guatemala. | dispersion and invasion capacity of sylvatic populations of triatoma dimidiata (latreille) were investigated during 14 mo by means of experimental chicken coops installed in a nature reserve within the maya biosphere, petén, guatemala. in addition, palm trees, underground archeological holes (chultunes) and piles of limestones within the forest were inspected as potential sylvatic habitats of t. dimidiata. from the three types of sylvatic habitats we inspected, all served as shelter and breeding ... | 2003 | 14765656 |
| morphometric analysis of triatoma dimidiata populations (reduviidae:triatominae) from mexico and northern guatemala. | triatoma dimidiata is one of the major vectors of chagas disease in latin america. its range includes mexico, all countries of central america, colombia, and ecuador. in light of recent genetic analysis suggesting that the possible origin of this species is the yucatan peninsula, we have analyzed populations from the state of yucatan, san luis potosi, and veracruz in mexico, and a population from the southern region of the yucatan peninsula located in northern guatemala, the region of el peten. ... | 2005 | 16184224 |
| chromosomal variation and genome size support existence of cryptic species of triatoma dimidiata with different epidemiological importance as chagas disease vectors. | the wide geographical distribution of triatoma dimidiata, one of the three major vectors of chagas disease, ranges from mexico to northern peru. since this species occupies a great diversity of artificial and natural ecotopes, its eradication is extremely difficult. in order to assist control efforts, we used chromosome analyses and dna amount as taxonomic markers to study genetic variability in populations of t. dimidiata from mexico, guatemala, el salvador and colombia. we differentiated three ... | 2006 | 16827710 |
| two distinct triatoma dimidiata (latreille, 1811) taxa are found in sympatry in guatemala and mexico. | approximately 10 million people are infected with trypanosoma cruzi, the causative agent of chagas disease, which remains the most serious parasitic disease in the americas. most people are infected via triatomine vectors. transmission has been largely halted in south america in areas with predominantly domestic vectors. however, one of the main chagas vectors in mesoamerica, triatoma dimidiata, poses special challenges to control due to its diversity across its large geographic range (from mexi ... | 2009 | 19274073 |