Table 3.

Similarity percentage (SIMPER) analysis comparing the diets of n = 256 rural (feral) and n = 102 urban (stray) cats (Felis catus) collected across southwest Western Australia.

Diet Category	Contribution to Difference in Diet (SIMPER %)	Rural = Feral Cat Mean ± 1 SD Percentage Volume	Urban = Stray Cat Mean ± 1 SD Percentage Volume
Refuse	35.6	9.25 ± 25.72	18.83 ± 30.02
House mouse Mus musculus	15.9	28.56 ± 39.57	1.49 ± 8.10
Birds	14.7	10.03 ± 25.15	5.32 ± 19.38
Invertebrates	12.0	4.32 ± 14.25	1.24 ± 4.54
European rabbit Oryctolagus cuniculus	5.7	4.91 ± 18.77	0.49 ± 4.95
Reptiles	5.2	2.85 ± 11.28	0.01 ± 0.10
Black rat Rattus rattus	4.7	2.36 ± 13.82	3.97 ± 17.20
Frogs/Fish	2.4	1.03 ± 9.53	0.15 ± 1.49
Total medium native mammal ≥500 g	2.1	0.97 ± 9.08	0.90 ± 8.91
Grains/Animal feed	1.8	2.76 ± 13.38	0.00 ± 0.00
Total small native mammal <500 g	<0.01	0.07 ± 1.09	0.00 ± 0.00

Medium-sized native mammals included black-footed rock wallaby Petrogale lateralis, common brushtail possum Trichosurus vulpecula hypoleucus and quenda Isoodon fusciventer. Small native mammals included western bush rat Rattus fuscipes fuscipes, fat-tailed dunnart Sminthopsis crassicaudata and the western pygmy possum Cercartetus concinnus.