Publications

[hematophagic rhythm of simulium quadrivittatum loew, 1862 (diptera: simuliidae)].	a relation between the hematophagic activity of simulium quadrivittatum and the variation of solar position north of "la canada" hill (21 degrees 43'n and 82 degrees 54'w), in the central area of the isle of youth, was found. two paraboles were derived. they respond to the equations y = 11.61 + 0.137 s + (-4.727) s2 and y = 17.06 + 0.415 s + (-9.495) s2, for the morning and afternoon values respectively. a higher hematophagic activity, on average, was found in the afternoon (u = 24, p less than ...	2009	2672169
[breeding places of simulium quadrivittatum loew, 1862 (diptera: simuliidae) in isla de la juventud].		2009	3072615
[study of the schedule of hematophagic activity of simulium quadrivittatum loew (1862) (diptera: simulidae) on the island of youth].		2009	3914004
morphogenesis of larval onchocerca volvulus in the panamanian black fly, simulium quadrivittatum.	simulium quadrivittatum loew (diptera: simuliidae), a man-biting black fly, was shown, for the first time, to be capable of supporting development of onchocerca volvulus leuckart (nematoda: filarioidea) from microfilariae to third-stage (infective) larvae. the black flies were collected in chiriqui province, panama and transported alive to guatemala, where they were allowed to feed on a human subject infected with o. volvulus. samples of these flies were dissected over an 11-day period to assess ...	1984	6731672
entomological evaluation by pool screen polymerase chain reaction of onchocerca volvulus transmission in ecuador following mass mectizan distribution.	the prevalence of infected and infective black flies was estimated by pool screen polymerase chain reaction (pcr) amplification in the three river basins in ecuador endemic for onchocerciasis. mass distribution of ivermectin (mectizan) resulted in dramatic declines in the prevalence of infected and infective flies. in the rio santiago river basin, no infections were detected, suggesting that transmission had ceased. the ratio of infected to infective flies in simulium exiguum was 10-fold lower t ...	2003	12641415