CD 



IA 5. Rush Lake. Acreage: 522. 



Location: Palo Alto County; Fort Dodge 1:250,000; 8 miles W of Mallard and 

 Curlew; reached via Rt. 3 1 4. 



Description: Vegetation is almost all cattail. A small stream enters the west end 

 of the marsh and deposits a silt fan which supports lush growth of arrowhead. 

 This marsh has been studied by Dr. Milton W. Weller and his students for at 

 least a decade. Data on birds and muskrat populations correlated with changes 

 in distribution and abundance of vegetation have been accumulated and will be 

 published soon. 



References: Frederickson, L. H. 1969. An experimental study of clutch size of 

 the American Coot. Auk 86(3):541-550; Frederickson, L. H. 1970. Breeding 

 biology of American Coots in Iowa. Wilson Bull. (In press); Hayden, A. 1943. A 

 botanical survey in the Iowa Lake Region of Clay and Palo Alto counties. Iowa 

 State Coll. J. Sci. 17:277-416; Martin, G. W. ed. 1954. Marsh and aquatic an- 

 giosperms of Iowa. State Univ. Iowa Studies Nat. Hist. 29(5): 1-92; Neal, T. 

 1969. Home range and movements of muskrats. Iowa State Coll. J. Sci.; 

 Provost, M. W. 1947. Nesting birds in the marshes of northwest Iowa. Am 

 Midi. Nat. 38:485-503; Weller, M. W., and C. E. Spatcher, 1965. Role of 

 habitat in distribution and abundance of marsh birds. Spec. Rep. No. 43, Agr. 

 Home Econ. Exp. Sta. 31 p. 



Ownership: State of Iowa. 



Data source: DeVere E. Burt, TNC, 260 Ludlow Ave., Cincinnati, Ohio. 45220. 



Other knowledgeable persons: Dr. Milton W. Weller, Department of Wildlife 

 Biology, Iowa State University, Ames, la. 50010. 



o 

 > 



