Chaves Luis Fernando, Añez Nestor
Laboratorio de Biología Teórica, Instituto de Zoología Tropical, Facultad de Ciencias, Universidad Central de Venezuela, Apartado 47058, Caracas 1041-A, Venezuela.
Acta Trop. 2004 Nov-Dec;92(3):219-24. doi: 10.1016/j.actatropica.2004.08.001.
The structure of the Phlebotomine sand fly community from the Venezuelan Andes was studied using null-model tests. The analyses, at the living zones and altitudes scales, revealed C-scores larger than those expected by random, independently of the collection technique (P < 0.05). These results imply that sand fly species are non-aggregated at both scales. Random results for the variance of C-score and for the favored states hypothesis suggest that sand fly species belong to an unique guild. The latter is reinforced by the fact that anthropophilic and zoophilic species use in the same way a common resource (blood). Finally, we suggest additional approaches to study the role of the sand fly community structure on the genesis and dynamics of transmission of American cutaneous leishmaniasis.
利用零模型检验研究了委内瑞拉安第斯山脉地区白蛉群落的结构。在生活区和海拔尺度上的分析表明，无论采用何种采集技术，C值均大于随机预期值（P < 0.05）。这些结果表明，白蛉物种在这两个尺度上均无聚集现象。C值方差和偏好状态假说的随机结果表明，白蛉物种属于一个独特的类群。嗜人白蛉和嗜动物白蛉以相同方式利用共同资源（血液）这一事实进一步强化了这一点。最后，我们提出了其他方法来研究白蛉群落结构在美洲皮肤利什曼病传播的发生和动态中的作用。
