摘要
昆虫体内环境(体温、体含水量)受外界环境条件影响极大,昆虫通过改变水的获得与损失维持体内水分平衡。本文提出“平衡温湿条件”这一概念,并用以描述昆虫体内水分平衡与环境温、湿度的关系,禁食昆虫体内含水量保持不变时的环境温、湿度条件为“平衡温湿条件”。对于狭翅雏蝗 Chorthippus dubius(Zub.)末龄蝻,其平衡温湿条件若以温湿系数(Q)表示,为Q=2.87。当Q>2.87时,虫体含水量增高;当Q<2.87时,虫体含水量下降。狭翅雏蝗调节体温的能力较差,对于其末龄蝻体温的研究表明,静止时,蝗蝻体温与环境温度一致;运动可使体温高于环境温度1—2℃;接受太阳辐射可使体温高于环境温度1—10℃(辐射强度为77500—161000 Lux时)。狭翅雏蝗种群世代净增长率达到最大时的环境温、湿度条件与“平衡温湿条件”接近。
The body temperature and water content of insects are evidently influenced by environmental conditions. Insects can maintain water equilibrium by changing gain and loss of water. A; new concept of equilibrium in temperature and humidity conditions (ETHC) is adopted in, the present wort to investigate .the. relationship between; water equilibrium in wisects and envit ronmental temperature and humidity: The environmental condition of temperature and humidity which can keep the water content of an insect without access to.food to be constant is called the ETHC of the insect The ETHC of the last iristar nymph of Chonhippus dubiut (Zub.) expressed in temperature-humidity coefficient (Q) is Q=2.87. When Q> 2.87 its water content will increase, while Q<2.87 it will decrease.Ch dublus has little capacity to regulate its body temperature. The last instar nymph in quiet condition has body temperature equal to the ambient temperature but its locomotion can, increase body, temperature by 1-2℃, -Under the sun (77,500 to 161,000 lux) its body tern-perature can increase by 1-10℃.The environmental temperature and humidity at which the net 'reproduction rate (R) of Ch. dvbius attains the maximum are similar to its ETHC.
出处
《昆虫学报》
CAS
CSCD
北大核心
1989年第3期278-285,共8页
Acta Entomologica Sinica
关键词
狭翅雏蝗
温度
湿度
Chonhippus dubius (Zub.)--temperature--humidity
