Populations 81 



Fig. 5.3 I Homing behavior of newts, (a) Recaptures of individuals 

 displaced in 1956 to a point about one-half mile downstream from 

 place of original capture, (b) Recaptures of individuals displaced in 

 1956 to a point about one mile upstream from place of original capture. 

 Area of original capture and point of release shown by arrows. Station 

 numbers refer to arbitrary subdivisions of stream course. All individuals 

 leave the stream after each breeding season. {From T witty, 1959, 

 Science 130.) 



10 



8% recaptured 1957 



1 fl I M I I I I I I I I 



1 10 20 



■ ' I 1 1 1 I I 1 I I I I r I I I I I I I I I I I I I I I I ( 



30 40 50 



15% recaptured 1958 



(a) 



20 



Station numbers 



10 - 3% recaptured 1957 



10 



11% recaptured 1959 



-m-n- 

 10 



-r-rfl- 



I i I W I I I I H I I I I I ■ 

 30 40 



ib) 



20 



Station numbers 



50 



