Sobrevivência e variação de peso de adultos de Periplaneta americana (Linnaeus, 1758) (Blattaria, Blattidae) submetidos a diferentes condições de estresse

Biotemas

Jucelio Peter Duarte¹  Marcial Corrêa Cárcamo¹  Paulo Bretanha Ribeiro¹  Francielly Felchicher¹ 

[1] Universidade Federal de Pelotas

关键词: Barata;    Desidratação;    Inanição;    Longevidade;    Peso corporal;   

DOI  :  

学科分类：生物科学（综合）

来源: Universidade Federal de Santa Catarina * Centro de Ciencias Biologicas

【 摘 要 】

http://dx.doi.org/10.5007/2175-7925.2015v28n2p103Periplaneta americanais a species of great importance to public health, since it can act as a vector of many pathogens and it reaches large populations in urban environments. This is probably due to its ability to resist starvation and desiccation. This study aimed to evaluate the effects of absence of water and food on survival and weight change among adultP. americanaindividuals and check whether the initial weight of individuals influences on their survival. Four groups having twentyP. americanacouples were formed and subject to: I) no water or food; II) no food; III) no water; and IV) control group. Insects were isolated according to the groups, which were weighed at the beginning and end of the stress conditions. They remained under these conditions until all individuals in each test group were dead. Stress conditions caused reduction in survival time when compared to the control group. Adults with higher body mass survived longer when deprived only of food, while among those lacking water, weight had no influence on survival. Total weight loss was greater among individuals deprived of water than those deprived only of food. 

【 授权许可】

Unknown