Links in this category of editors choices cover some of these topics:
disease, quarantine, dieback, plague, toxins

• Environment Australia - Industry [aus]
  • encouraging improved environmental management practices
• Commonwealth Scientific and Industrial Research Organisation (CSIRO) [aus]
• Australian Quarantine and Inspection Service (AQIS) [aus]
• CSIRO Animal Health - Disappearing Frogs [aus]
  • amphibian decline, indicator of environmental collapse, new fungus may be partly responsible
• Population Control [all]
  • unrestrained growth of human populations, immuno-contraception, immuno-sterilisation, fertility control through viral transmission
• Greenpeace Australia [aus]
• Greenpeace New Zealand [nz]
• AgNet - Australian Agriculture Index [aus]
• Agriculture, Fisheries, and Forestry - Australia (AFFA) [aus]

Region codes [aus, nz, ant, ...] indicate the state or country that each site is relevant to.