Developing eggs of Metrioptera roeseli HGB. have an obligate "embryonic" diapause in stage 23 and a facultative "initial" diapause in stage 4. Initial diapause is lacking when the ovipositing females are kept at long day photoperiod (LD 16/8), but is induced at LD 14/10 and LD 8/16. When natural lig
The influence of temperature on the duration of egg development in West European grasshoppers (Orthoptera: Acrididae)
โ Scribed by W. K. R. E. Wingerden; J. C. M. Musters; F. I. M. Maaskamp
- Publisher
- Springer-Verlag
- Year
- 1991
- Tongue
- English
- Weight
- 608 KB
- Volume
- 87
- Category
- Article
- ISSN
- 0029-8549
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T h e object of the experiments recorded in the following pages was to ascertain the influences of certain gases upon the cardiac and respiratory movements of the grasshopper, both in the uninjured animal and when the heart and respiratory centers were isolated from all or part of the body. T h e p