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Breeding bird populations and community organizations were compared between a 

 beaver pond habitat dominated by willows and an adjacent nonwillow riparian habitat. 

 Total bird density in the ponded habitat was three times that of the nonponded area. Bird 

 biomass, bird species richness, and bird species diversity were 3.49, 3.25, and 1 .67 times 

 higher, respectively, in the beaver pond habitat. 



KEYWORDS: breeding birds, density, diversity, standing crop biomass, guilds 



