It's partly because these lands in the high country have been subject to quite rapid and dramatic change over the last 60 years, and, again, Opposition members don't seem to be aware of this significant change in areas like Lake Station, where aerial spraying of herbicide resulted in large areas of 200-year-old matagouri being killed in a second. Once that centuries-old vegetation is destroyed by spraying, it's impossible to regenerate. So this major change that has occurred in the high country, the number of threatened and indigenous species—the massive change that's occurred with agricultural intensification is one reason, and those forward-looking leaseholders do recognise the value of protecting indigenous shrublands and the remaining areas of tussock grasslands.