NUCLEUS OF PERMANENT RESIDENTS 



BLUE JAY (CYflNOCIirA CRISTATA) = WOODS SNAIL (CARYCMIUM EXIGUUM) 

 WHITE-FOOTED MOUSE (PEROMISCUS liUCOPUS N0VEV0RACFN5I5) MM MIRID BUG (PICYPMUS GRACILENTUS PAWH.) 

 FOX SQUIRREL aCIURUS NIGER RUFIVENTERJ LEAF-HOPPER (ERYTHRONEUR/J OBLIQUA SAY) 



SEASONALS 



EARLY SPRING 



Hm«MirE (PARASITUS 3P.) 

 aaaFLEA BEETLE (EPITRIX FUSCULA) 

 ••••JUNCOUUNCO HYEMALIS) 

 t»I>«»SPiPER(G0NGYLIOIEl[UM PALLIDUM) 

 • ♦♦♦TREE SPARP0W(5PIZEILA MflflTlCOL^) 



LATE SPRING 



ooodBEETLE (GLYPTINA SPURIA) 

 tUnSPlDERIPHRUROUrHUS PAIUSTRIS) 

 mmMlTE (PARASITUS SP.) 

 »*»FLY(«£UPO&lllWI0liaJ(tA MfVECflEURl) 



EARLY SUMMER 



aSPIDER (MAN60RA SiBBEROSA) 

 *TLY(P3£llMGRIPH0NEURACRE\/fCOfURi; 

 •FLYf5APR0WZfl50PW PHILADELPHIA) 

 tMITE(PARA5ITU5SR> 



AUTUMN 



/w SPIDER <XYSTiCUS SP.) 



Eza SNOUT BEETLE 



m-mFlea beetle (PHYUOTRETA SINUATA) 



LATE SUMMER 



iBEETLE (BRACyPTERUS URTICAE) 



c=iSPID£R (MANGORA GIBBEROSA) 

 HHwMlTE (PARASITUS 5R) 



WINTER 

 AAkFLEA BEETLE (EPIfRIX FUSCULA) 

 ••••JUNCaSMOWBIRDUNNCQ HrEHAUS) 

 ♦ ♦♦»TREESPARROW (3PI2EUA MONTICOIA) 

 nrnnnBEETLE (TELEFUNUS VELOX HALDJ 



Fig. 1. An animal clock of the seasons in an Illinois Woodland. 

 (After V. G. Smith.) 



53 



