文献检索，用中文搜 PubMed

Suppr 超能文献

核心技术专利：CN118964589B侵权必究

核心技术专利：CN118964589B侵权必究

Angew Parasitol. 1975 Sep;16(3):135-41.

The adult males of the German cockroach Blattella germanica are less strongly aggregated in their resting period than the adult females; they seldom stay below the common hiding place. This tendency decreases in the course of a day.--2. The nymphs aggregate in the first days of their lives below the hiding places of the adults where they had left the oöthecae. Later the nymphs seek hiding places that are better adapted to their body size. An olfactory stimulus (aggregation pheromone) which is going out from the adult induces the nymphs to go back again to the adults in the course of a day. This tendency decreases more when the nymphs become older. At the same time the number of nymphs which are absent from hiding places increases.--3. A positive chemotactic and a positive thigmotactic reaction are responsible for this behaviour of the cockroaches. A phototactic negative reaction is less important.

德国小蠊的成年雄性在休息期的聚集程度不如成年雌性强烈；它们很少待在共同的藏身之处下方。这种趋势在一天中会减弱。——2. 若虫在出生后的头几天聚集在成虫的藏身之处下方，它们就是在那里离开卵鞘的。后来，若虫会寻找更适合其体型的藏身之处。来自成虫的嗅觉刺激（聚集信息素）会在一天中促使若虫再次回到成虫身边。随着若虫年龄的增长，这种趋势减弱得更多。与此同时，不在藏身之处的若虫数量增加。——3. 蟑螂的这种行为是由正趋化性和正趋触性反应引起的。负趋光性反应的重要性较低。

Angew Parasitol. 1975 Sep;16(3):135-41.

The adult males of the German cockroach Blattella germanica are less strongly aggregated in their resting period than the adult females; they seldom stay below the common hiding place. This tendency decreases in the course of a day.--2. The nymphs aggregate in the first days of their lives below the hiding places of the adults where they had left the oöthecae. Later the nymphs seek hiding places that are better adapted to their body size. An olfactory stimulus (aggregation pheromone) which is going out from the adult induces the nymphs to go back again to the adults in the course of a day. This tendency decreases more when the nymphs become older. At the same time the number of nymphs which are absent from hiding places increases.--3. A positive chemotactic and a positive thigmotactic reaction are responsible for this behaviour of the cockroaches. A phototactic negative reaction is less important.

德国小蠊的成年雄性在休息期的聚集程度不如成年雌性强烈；它们很少待在共同的藏身之处下方。这种趋势在一天中会减弱。——2. 若虫在出生后的头几天聚集在成虫的藏身之处下方，它们就是在那里离开卵鞘的。后来，若虫会寻找更适合其体型的藏身之处。来自成虫的嗅觉刺激（聚集信息素）会在一天中促使若虫再次回到成虫身边。随着若虫年龄的增长，这种趋势减弱得更多。与此同时，不在藏身之处的若虫数量增加。——3. 蟑螂的这种行为是由正趋化性和正趋触性反应引起的。负趋光性反应的重要性较低。