Figure 1.
Study Area showing capture sites of feral pigs in this study.
Feral pigs captured in cane plantations are denoted with an S, while those from interface habitats are denoted with an I. Pigs captured in Jarra Creek, Misty Mountains, and Babinda Boulders are deemed captured in rainforest.
Figure 2.
δ13C and δ15N values of feral pig base hair.
The stable isotope composition of base hair were taken from 41 feral pigs captured at Rainforest (R), Savanna (S), or Interface environments (I). Sugarcane and Rainforest δ13C and δ15N value endmembers are plotted for comparison. A lowercase letter (s, i) indicates that the site contains ready access to native C4 vegetation.
Figure 3.
Box and whisker plot showing mean δ13C values of base hair.
Figure 4.
Sequential δ13C and δ15N values of longer tail hair and derived information.
δ13C (A) and δ15N (B) values for seven feral pigs captured from different environments (rainforest, interface, and sugarcane). δ13C values of sequential feral pig hair were used to estimate δ13C dietary values (C), and estimated fraction of C4 in the diet (D). Feral pigs from the Misty Mountains (MM1-50 Kg male, MM2-80 Kg male, MM3-30 Kg female) and Babinda Boulders (60 Kg male) were captured in rainforest environments. Feral pigs from Eubenangee Swamp (60 Kg male), Waugh Pocket (100 Kg male), and Bellenden Ker (40 Kg female) were captured in Sugarcane plantations. The dry season is shaded.
Figure 5.
Plot of δ13C vs. δ15N values of sequential feral pig hair from seven individuals.
Specimen legend as in Figure 4.