How did you get the science so wrong?
Please review some of the science behind this issue and alter your article accordingly:
1) Kangaroo populations fluctuate in response to seasonal conditions, not the commercial harvest. No Australian scientists blame the decline after 2001 on the harvest, rather the worst drought in recorded history. Numbers have started to rise again flowing the breaking of this drought. This data is available at http://www.environment.gov.au/biodiversity/trade-use/wild-harvest/kangaroo. It’s worth noting that even at the peak of the drought, populations were only marginally less than the long term average.
2) The report by Hacker et al does not at any place refer to numbers “per sq kilometer would result in a threatened or endangered status to the local population” . Do a word search. Rather it invented a term ‘quasi-extinction’ to discuss a situation reflecting the probability of densities being below the minimum density (the nominal value) for an unharvested population. I can forward an extensive critic by Hacker et al of the ‘Decimation of an Icon’ report in which they point to wide and gross miss-representations of their work.
Thus I would put it to you that it’s more likely that Australian scientist are not ‘concerned that sustainability of the species is being mishandled’, than the opposite.
3) Kangaroos are not classified as pests. All the State Management Plans list them as sustainable resources, not pest.
4) The 2010 UTS report you are citing compared the amount of meat produced from a kangaroo to a sheep to come to the conclusion that kangaroos could never replace sheep. Unfortunately they had to invent a 49 kg ‘average sheep carcass weight’ to do so. This would mean that these sheep were 110 kg live, and if that’s the average then there would be some at say 130-150 kg, which is the size of the average sumo wrestler. The UTS report is currently being extensively criticised by a group of informed kangaroo managers, this article will be published soon.
5) Joey mortality is allowed for in calculations of the quota, it’s taken into account in the extensive modelling which predicts populations changes in response to seasonal conditions and harvest level.
The kangaroo harvest is widely held by informed Australian scientists to be a model of wise and sustainable resource utilisation. And to potentially point the way to a more sustainable use of our arid grazing rangelands, perhaps you could cite the work of some of these scientist rather than just the few who oppose it on ethical grounds driven by an animal liberation paradigm.