Iowa Agriculture and Home Economics Experiment Station Research Bulletin


Progress toward an understanding of the meaning of predation is sometimes obtained by comparing the predator's feeding trends in markedly different habitats. Data collected in Iowa in 1940 and 1941 make such a comparison possible for the northern plains red fox (Vulpes regalis Merriam). A continuous investigation of the food coactions of red foxes was made on the Moingona Fox Range from June 1938 to May 1941 (Scott, 15). A similar study was undertaken on the Wall Lake Area in June 1940 and continued to October 1941, when it was interrupted by World War II. Thus, observations were being made on these two areas during a common period, June 1940 to May 1941. The unpublished data from Wall Lake are presented here and compared with those from the Moingona Area for the period during which simultaneous observations were made.



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