Jump to Main Content
- Savage, R. Maxwell
- Proceedings of the Zoological Society of London 1935 v.105 no.1 pp. 49-98
- Algae; Rana temporaria; altitude; breeding; eggs; equations; flora; frogs; frost; geotaxis; hibernation; humidity; phosphates; ponds; rain; smell; spawning; statistical analysis; streams; temperature; water analysis
- ... 1 By statistical methods it is found that frogs are little affected by the weather which obtains at the time of spawning. There is a tendency for spawning to take place more in wet weather than at other times, and, on general grounds, severe frost would prevent activity, but weather in which night frosts occur is not avoided. Humidity is without action. 2 The mean spawn date is influenced by the w ...
- Lowndes, A. G.
- Proceedings of the Zoological Society of London 1935 v.105 no.1 pp. 35-48
- Ostracoda; flagellum; freshwater; sperm motility; spermatozoa
- ... 1 With the proper technique it can be shown that the sperms of the freshwater Ostracods are highly motile. 2 The discovery of this motility has necessitated a re‐orientation of the sperms. The sperms consist of a thin anterior part and a thicker posterior part, which is the flagellum. 3 The nature of the movement is described. 4 Apparently the sperms are now functionless. ...