C-19 



6. Discontinued use of pesticides and other chemicals so as to 

 increase chances of reproductive success; also abatement of water 

 pollution so as to increase fish (food) supply. 



Ecological Significance and General Importance : 



1. Aesthetic value as a bird of prey and beautiful species. 



2. Important indicator species to monitor effects of pesticides, 

 especially in Chesapeake Bay which is near large metropolitan centers. 



3. Predation and maintenance of health in prey populations. 



4. Bird-watching as a popular recreation. 



References : (personal communication) 



Mr. J. Appel, Refuge Manager, Chincoteague National Wildlife 

 Refuge, Chincoteague, Maryland. 



Dr. M. Byrd, Dept. Biology, College of William and Mary, Williams- 

 burg, Virginia. 



Charles Lesser, Mgr. Technical Services, Division Fish and Wild- 

 life, Dept. Natural Resources and Environmental Control, Edward 

 Tathall Bldg. , Legislative Add. and D Street, Dover, Delaware, 

 19901. 



T. F. Norris, Supt. Assateague National Seashore, Rt. 2, Box 294, 

 Berlin, Md. 



Jan Reese, Researcher, St. Michaels, Md., 21663; also c/o Medical 

 College, Johns Hopkins University, Baltimore, Maryland. 



Stanley Wiemeyer, Research Biologist. Patuxent Wildlife Research 

 Center, Laurel, Maryland. 



Literature: 



Ames, P. L. 1966. DDT residues in the eggs of the osprey in the 

 northeastern U. S. and their relation to nesting success. Jour. 

 Applied Ecology 3 (suppl) : 87-97. 



Byrd, M. (Edit.) 1973 in press. Proceedings of the first North 

 American osprey research conference. Dept. Biology, College of 

 William and Mary, Williamsburg, Va. 



