Veuillez choisir le dossier dans lequel vous souhaitez ajouter ce contenu :
Filtrer les résultats
This paper deals with the interspecific harmony of temporo-spatial activity patterns. The community is simplified due to the lack of available niches in the third dimension, however a number of extrinsic physical and biotic factors are shown to have allowed the development of a more complex community than would normally occur in such a habitat.
A discussion of various types of traps and trapping methods with a description of a new Summer trapping technique for the Varying Hare is given. Some preliminary results from the study of a local population based on work done in the winter and summer of 1958 are presented.
An analysis is made of sexual dimorphism in a sample of 60 snapping turtles collected in southern Quebec and Ontario during the summer of 1956. In our sample males constitute the larger sex. There is no demonstrable sexual dimorphism in shell dimensions nor in head width. The only reliable external indicator of sex found is the distance from the plastron to the cloaca. This is relatively longer in males. In turtles less than 200 mm in carapace length, this is not reliable. Maturity occurs in both males and females at about this size. The sex ratio in our sample is …