Bar M E, Oscherov E B, Damborsky M P, Porcel E A, Alvarez B M
Cátedra de Artrópodos de la Facultad de Ciencias Exactas y Naturales y Agrimensura de la Universidad Nacional del Nordeste, Argentina.
Rev Saude Publica. 1994 Feb;28(1):59-68. doi: 10.1590/s0034-89101994000100007.
Populations of T. infestans and T. sordida were studied between September 1988 and April 1989 with a view to discovering if any kind of interaction took place between them while they lives together in the same experimental unit and exploited the same food resource (chicken). The initial age structure for each species was: 27 N1, 7 N2, 11 N3, 3 N4, 8 N5, 4 males and 10 females. The population dynamics nutritional status, predation and gregarious behavior were estimated by means of a monthly census. The colonizing success of T. infestans was greater than that of T. sordida in view of the values obtained: fecundity (146 eggs/female), longevity (157.8 days) and mortality (39.4) compared with the values recorded for T. sordida: 118 eggs/female, 81.1 days and 54.0% respectively. The population growth of T. insfestans followed an exponential model, with a high nymphal recruitment rate, while the T. sordida population was early extinguished. In general, the average weight of T. infestans remained close to the initial values while that of T. sordida declined. Gregarious groups were formed principally in the inferior sector of wall 1 (near the host) with a higher aggregation in T. infestans. These results make it possible to propose the hypothesis of the competitive superiority of T. infestans.
1988年9月至1989年4月期间，对侵扰锥猎蝽和污色锥猎蝽的种群进行了研究，目的是发现当它们共同生活在同一实验单元并利用相同食物资源（鸡）时，它们之间是否发生了任何形式的相互作用。每个物种的初始年龄结构为：27只N1、7只N2、11只N3、3只N4、8只N5、4只雄性和10只雌性。通过每月一次的普查来估计种群动态、营养状况、捕食和群居行为。鉴于所获得的值，侵扰锥猎蝽的定殖成功率高于污色锥猎蝽：繁殖力（146枚卵/雌性）、寿命（157.8天）和死亡率（39.4%），而污色锥猎蝽记录的值分别为：118枚卵/雌性、81.1天和54.0%。侵扰锥猎蝽的种群增长遵循指数模型，若虫招募率很高，而污色锥猎蝽种群则早早灭绝。总体而言，侵扰锥猎蝽的平均体重保持接近初始值，而污色锥猎蝽的平均体重则下降。群居群体主要形成于壁1的下部区域（靠近宿主），侵扰锥猎蝽的聚集性更高。这些结果使得有可能提出侵扰锥猎蝽具有竞争优势的假说。
