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Impact of Red Fox Predation on the Sex Ratio of Prairie Mallards

by

Douglas H. Johnson and Alan B. Sargeant

U.S. Fish and Wildlife Service
Northern Prairie Wildlife Research Center
Jamestown, North Dakota 58401


A red fox with captured hen mallard

A red fox with captured hen mallard. An original pen-and-ink drawing by Dawn Phillips.

This resource is based on the following source (Northern Prairie Publication 0266):
Johnson, Douglas H. and Alan B. Sargeant  1977.  Impact of red fox predation on 
     the sex ratio of prairie mallards.  U.S. Fish and Wildl. Serv. Wildl. Res. 
     Rep. 6.  56 pp.
This resource should be cited as:
Johnson, Douglas H. and Alan B. Sargeant  1977.  Impact of red fox predation on 
     the sex ratio of prairie mallards.  U.S. Fish and Wildl. Serv. Wildl. Res. 
     Rep. 6.  56 pp.  Northern Prairie Wildlife Research Center Online.  
     http://www.npwrc.usgs.gov/resource/mammals/sexratio/sexratio.htm
     (Version 16JUL97).

Table of Contents

Figures

Tables


Downloading Instructions -- Instructions on downloading and extracting files from this site.
(Download) sexratio.zip (492K) -- Impact of Red Fox Predation on the Sex Ratio of Prairie Mallards
Installation: Extract all files and open sexratio.htm in a web browser.

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