I distrust Victorian National Parks with their protectionist attitudes to dingoes. I would think they might colour 'scientific' studies with their attitudes.

In SA, shoot dingoes on sight.

Seen more than a few dingoes with a lot of German Shepherd DNA in them. Seen pure white ones. Pure black ones. The most common yellowish ones. Read an article once, which claimed it is increasingly hard to find any dingoes without some dog DNA in them.

Don't know. Not an expert.