ADJUSTMENT OF ORGANISMS TO ENVIRONMENT 383 



different from that on plane surfaces, as indicated above; 

 but it is always conditioned by and always conforms to the 

 nature of the environment. 



It is the terrestrial vertebrates that we know best among 

 animals so we will next attempt a cooperative statistical 

 compilation of facts bearing directly on the mutual adjust- 

 ments of these. 



Study 47. The local resident terrestrial vertebrate fauna: 

 its ecological distribution; a compilation- study. 



Prepare a table, leaving a column at the left hand for 

 group names, with the following column headings, abbre- 

 viated as desired: 

 Name. 



Inhabits (forest, heath, meadow, marsh, shores, 

 desert place : indicate special habitats in 

 any of these). 



( Plants | f ee t n ] ' 



Eats what \ } ^ I ( s P e fy the land 

 ] . , . alive of food eaten.) 



Animals 



^ I where 



Forages ,, . ,, N 



I when, (day, night, etc.) 



Special means or apparatus for getting food. 



. ( where 



Nests \ t_ / j . \ 



( when (dates) 



Constructs or takes advantage of, what special shelter. 



What sort of activities (running, 

 jumping, dodging, burrowing, 

 flying, diving, etc.) 



Escapes enemies by -< 



What sort of organic defense (bad 

 odor, bad flavor, defensive 

 armor, protective coloration, 

 etc.) 



