Fig 1.
(a) Burrendong study site and treatments, and (b) location of the study site in Australia (black box).
Red foxes were controlled (baited and shot) at removal sites 1 and 2 from October 1995 to August 1998, but left intact at untreated sites 1 and 2.
Fig 2.
Abundance indices for (a) red foxes and (b) feral cats from July 1994 to August 1998 at Burrendong.
Red foxes were baited and shot at removal sites 1 and 2 from October 1995 onwards, but left intact at untreated sites 1 and 2.
Fig 3.
The effects of red fox control (before/after) on the importance of five major prey groups in the diet of feral cats (n = 408 scats) in removal sites ((a)/(b); n = 2) and untreated sites ((c)/(d); n = 2) at Burrendong.
Data are pooled within removal and untreated sites. ** = a significant difference between removal sites and untreated sites (P < 0.05).
Fig 4.
Red fox control effects on the mean home range size (95% Minimum Convex Polygon) for feral cats over three periods (+ standard errors) in sites where foxes were removed (removal sites, n = 2) and left intact (untreated sites, n = 2) at Burrendong.
Sample sizes are shown above the bars.
Fig 5.
Red fox control effects (before/after) on the (a)/(c) macrohabitats and (b)/(d) microhabitats where feral cats deposited scats at Burrendong.
Data are pooled within removal sites (n = 2) and untreated sites (n = 2).
Fig 6.
Differences in day and night feral cat habitat use before (winter 1995; (a)/(c)) and after (winter 1996; (b)/(d)) red fox control at Burrendong.
Means with standard errors are shown. n = the number of cats tracked. ** = a significant difference between removal sites and untreated sites (P < 0.05).