Gray Foxes 135 



Table 1. Annual minimum cover polygon home-range estimates (km 2 ) 

 for five male and seven female gray foxes radiotracked from Septem- 

 ber 1986 to August 1987, Oak Ridge Reservation in east Tennessee. 



ID 



Sex 



Age 



Number 



of 



Tracking 



Annual Home- 









Locations 



Period 



Range 



Size (km 2 ) 



58 



M 



Adult 



25 





03/16/87-08/31/87 





6.91 



69 



M 



Adult 



231 





09/25/86-06/09/87 





3.25 



76 



M 



Adult 



248 





09/14/86-08/31/87 





4.36 



82 



M 



Adult 



293 





09/07/86-08/31/87 





4.01 



84 



M 



Adult 



130 





09/11/86-03/02/87 





2.83 



62 



F 



Subadult 



102 





10/01/86-01/12/87 





2.09 



63 



F 



Subadult 



119 





02/25/87-08/31/87 





17 941.2,3 



64 



F 



Subadult 



236 





09/26/86-05/12/87 





3.08 



66 



F 



Subadult 



271 





09/25/86-08/31/87 





2.09 



74 



F 



Adult 



266 





09/14/86-08/31/87 





5.08 



78 



F 



Subadult 



308 





09/19/86-08/31/87 





5.54 



80 



F 



Adult 



18 





09/09/86-11/03/86 





1.24 1A3 



1 Omitted from reproductive season home-range analysis; insufficient data. 



2 Omitted from dietary season home-range analysis; insufficient data. 



3 Omitted from annual home-range analysis; insufficient data. 



Mean annual home-range size (x ± SE) for 10 gray foxes was 

 3.97 ± 1.51 km 2 . Home-range size was similar between males (N = 5; 

 4.27 ± 1.59 km 2 ) and females (N = 5; 3.67 ± 1.54 km 2 ), and between 

 adult (N = 6; 4.41 ± 1.46 km 2 ) and subadult (N = 4; 3.20 ± 1.62 km 2 ) 

 foxes. 



Home-range size was similar during fruit diet (N = 9; 2.92 ± 

 0.40) and flesh diet seasons (N = 9; 3.43 ± 0.48). Home-range sizes 

 were similar among reproductive seasons for all foxes (N = 8; 2.72 ± 

 0.17); (N = 7; 2.32 ± 0.43); and (N = 9; 2.83 ± 0.42) for breeding, 

 pup-rearing, and pre-breeding seasons, respectively. Within repro- 

 ductive seasons, male and female home-range sizes also were 

 similar (N = 4; 2.67 ± 0.11) versus (N = 4; 2.7 ± 0.30) for breeding; 

 (N = 3; 2.79 ± 0.59) versus (N = 4; 1.98 ± 0.55) for pup-rearing; and 

 (N = 4; 2.60 ± 0.30) versus (N = 5; 3.01 ± 0.67) for pre- 

 breeding seasons, respectively. We observed that whelping females 

 exhibited restricted movements during pup-rearing season. 



Adjacent home ranges of four adult males were nearly exclusive 

 except for excursions by M 69 and M 76 into M 82's home range 

 during breeding season (Fig. 2). Subadults F 64, F 62, and F 78 home 

 ranges were contained within adult M 69's home range; F 64 and 



