Oscherov E B, Damborsky M P, Bar M E, Avalos G, Alvarez B M, Presman H, Wisnivesky-Colli C
Cátedra de Artrópodos, Faculty de Ciencias Exactas y Naturales y Agrimensura, Universidad Nacional del Nordeste, Corrientes, Argentina.
J Med Entomol. 2001 Mar;38(2):214-7. doi: 10.1603/0022-2585-38.2.214.
Interaction characteristics between Triatoma infestans Klug, 1834 and Triatoma sordida Stal, 1859 populations were studied in artificial ecotopes for 16 mo. The experimental design involved simultaneous treatments with T. infestans and T. sordida together in the same experimental unit (EU) and each separately in two control units (CU) made of adobe bricks. Chickens were used as host animals. Each unit was dismantled monthly to estimate triatomine population size and age structure, rebuilt, and repopulated with the same insects. In both units, T. infestans population growth followed a logistic model, whereas T. sordida did not show this pattern. T. infestans completed a generation in 24 wk (EU) and 32 wk (CU1), whereas T. sordida did not complete one generation during this period. We concluded that T infestans showed a better colonizing success than T. sordida. After living together for 1 yr, an interference process took place that resulted in the extinction of T. sordida.
在人工生态环境中对1834年克卢格锥蝽（Triatoma infestans Klug）和1859年斯塔尔锥蝽（Triatoma sordida Stal）种群之间的相互作用特征进行了为期16个月的研究。实验设计包括在同一个实验单元（EU）中同时对克卢格锥蝽和斯塔尔锥蝽进行处理，并在由土坯砖制成的两个对照单元（CU）中分别对它们进行处理。使用鸡作为宿主动物。每个单元每月拆除一次，以估计锥蝽的种群数量和年龄结构，然后重新建造并用相同的昆虫重新填充。在两个单元中，克卢格锥蝽的种群增长遵循逻辑斯蒂模型，而斯塔尔锥蝽则没有表现出这种模式。克卢格锥蝽在24周（实验单元）和32周（对照单元1）内完成一个世代，而斯塔尔锥蝽在此期间没有完成一个世代。我们得出结论，克卢格锥蝽比斯塔尔锥蝽具有更好的定殖成功率。在一起生活1年后，发生了一个干扰过程，导致斯塔尔锥蝽灭绝。
