-52- 



TABLE 4. CRITERIA AND QUANTITATIVE VALUES 

 FOR SELECTION OF NATURAL AREAS 



1. Ecosystem Types 



Diversity of ecosystem types 

 Little or no past and present disturbance 

 High diversity of species 



Type not represented in National Research Natural 

 Area System 



2. Endangered, or Threatened Biota and Gene Pool Species 



Endangered and threatened plant or animal species 

 Rare, declining, or depleted species 



3. Range Phenomena 



Outliers, disjuncts, or relict species 

 Limits of range — N, S, E, W 

 Restricted and endemic species 



4. Seasonal Concentrations of Animals 



Seasonal breeders - nesting, spawning 

 Overwintering concentrations 

 Migratory concentrations 



5. Commercial, Game, or Unusual Animal Populations 



Ungulates, game birds, fur bearers 

 Fish, clams, oysters, crabs 



6. Paleontological, Geological and Archeological Features 



Bones and artifacts, deposits of fossils, peat, 



lignite, sediments, structural and geomorphological 

 features 



7. Sites of well documented scientific research or 



discovery and records over period of years 



8. Oldest, largest, or otherwise exceptional individuals 



or associations 



Points 

 1 (each) 

 2 

 2 



4 



4 (each sp.) 

 2 (each sp.) 



1 

 1 

 1 



1 

 1 

 1 



1 

 1 



1 (each 

 feature) 



1 (each) 



Size of area 

 Acres 

 Under 100 acres 

 100 - 1,000 

 1,000 - 5,000 

 over 5,000 



Hectares 

 Under 45 

 45 - 457 

 457 - 2,270 

 over 2,270 



1 

 2 

 3 

 4 



