ECOLOGICAL SUCCESSION. 



6 9 



Staphylinidae Staphylinus violaceus Grav. B 



Elateridae Melanotus communis Byl. 



Slug Pallifera dorsalis Bin. B 



Beech Stage. 



Frog Rana sylvatica Le Conte F 



Salamander Plethodon cinereus Or. BF 



Snail Polygyra inflecla Say BF 



Snail Polygyra oppressa Say BF 



Snail Polygyra fraudulentia Pil. BF 



Snail Polygyra palliata Say BF 



Snail Pyramidula perspective. Say .BF 



Snail Pyramidula solitaria Say BF 



Ground beetle Pterostricus corecinus Newm. BF 



Beetle Xylopodus saperaioides Oliv. B 



Rotten log L 



Rotten log L 



Log P 



Ground M 



Under leaves H 



Leaves and log P 

 Leaves and log 



Leaves and log P 

 Leaves and log 



Leaves and log P 



Leaves and log P 



Leaves and log L 



Under bark LV 



The distribution of the animals of the field shrub and lower 

 tree strata are shown in Table II. and the lists which follow. 



TABLE II. 



Showing the distribution of animals recorded from the vegetation in more than 

 one of the animal communities of the forest stages indicated by numbers: i, the 

 cottonwood stage; 1-2, mixed cottonwood and pine stage; 2, pine stage; 2-3, mixed 

 pine and oak stage and open places in the oak forest; 3, black oak stage, in its later 

 phases white oaks occur; 4, stages containing red oak but not beech and maple; 5, 

 beech and maple stage. 



The letters below at the left refer to the species opposite which 

 they stand in Table II. and the numbers refer to the forest stages 

 as at the heads of the columns of Table II. The capitals and 

 italics have the same meaning as in the preceding table and list 

 (Table I.). 



