RODENT ETHOLOGY — EISENBERG 



45 



I'able 14. — Behavioral changes exhibited by male of Perognathus parvus through 

 e-'itnis in a in ''de-female eneounter (see table 13 for abbreviations) 



' Date of estrus. 



2 Ten seconds or less in duration was counted as one bout (see Metliods). 



Table 15. — Behavioral changes exhibited by male of Gerbillu.s uaiius through e.-straf 

 in a nude-female encounter^ (see talkie 13 for abbreviations) 



' Date of estrus. 



- Ten seconds or less in duration was counted as one bout (see Methods). 



