demographic functions of field populations of 

 vertebrate animals are being studied. 



1971 1972 1973 



$4.52 $4.79 $4.78 



Department of Agriculture.— Research programs 

 include work on assessment of impacts of natural and 

 man-made disturbances and manipulations on 

 ecosystems. Included are studies of effects on 

 vegetation used by domestic animals and wildlife, of 

 alternative timber harvesting systems, of fire and 

 impacts of insects and diseases. The impacts of 

 chemical agents introduced into, moving through, and 

 accumulating in ecosystems are also under study. 



1971 1972 1973 



$1.95 $2.22 $2.13 



Smithsonian Institution.— Research is being carried 

 out in many parts of the world on the floral and faunal 

 composition of areas being impacted by human 

 activities. The changes in species composition, species 

 replacement, and loss of rare and endangered species 

 are being studied. Research is concentrated in marine 

 shallow waters and estuaries, coral reefs, and tropical 

 and deciduous forests. Baseline studies are being 

 conducted and museum specimens of organisms are 

 being analyzed for toxic metals as a means for showing 

 the impact of man. 



1971 1972 1973 



$0 $0.10 $0.10 



Department of the Interior.— The Department of 

 the Interior, in common with other Federal agencies, is 

 required by law to make a full assessment of the 

 environmental impacts of proposed major activities 

 and actions. Studies related to such assessments are 

 undertaken or funded by the Department and are 

 reviewed by other specialized organizations where 

 appropriate. Basic studies are also made on ecosystems 

 and toxic substances or harmful activities that may 

 pose a threat to their continued health or survival of 

 these systems. 



1971 1972 1973 



$1.92 $2.22 $2.00 



56 



