82 JOHS. ANDERSEN 



M. Solomon: You mentioned that your herd was destroyed in 1950 

 and has since increased from a small foundation stock to about 200. How 

 does the population growth rate calculated from this result compare with 

 that calculated from your rate of annual production determined by trapping? 



J. Andersen: In the recolonization period we know that an influx of 

 deer took place from outside the estate. We released collar-marked deer, 

 but within a few days unmarked ones were observed. Hence we cannot be 

 sure of the starting population. 



R. J. Elliott: On a 300-acre estate known to me recolonization seems 

 to have been proceeding as the population was being culled. Thirty-six deer 

 were shot in 1958 and 1959 but there has been no apparent reduction in the 

 population. In many instances when particular deer had been shot it was 

 known that they were replaced within two or three weeks. 



M. W. Holdgate: Could there have been any immigration during the 

 period of shooting in 1950, thus enlarging your total stock figure? 



J. Andersen: Roe-deer movements normally occur in the spring and 

 summer: our shooting was done in the autumn when they normally remain 

 in one place. So I do not think that this was a factor. 



