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Kangaroo Industry BackgroundJohn Kelly, B. Ru Sci. (Hons), Kangaroo Industries Association of Australia. July 2008Introduction
Furthermore, the kangaroo population represents a resource. There is extensive ethical debate concerning the morality of utilising wildlife as a resource. This debate however, rarely examines the moral imperative for nations to utilise their resources to the best effect in supplying the world with the food and commodities it needs. Over the past 40 years a significant industry has developed which utilises the kangaroo resource. Initially its focus was largely on pest control for the pastoral industries. However over the last decade there has been a growing realisation that the kangaroo industry has significant economic and environmental benefits. The kangaroo industry currently generates in excess of $270 million per year in income and employs over 4,000 people. The vast bulk of these jobs are in remote rural communities, many of which would not exist without the industry. This document examines the scientific evidence indicating the kangaroo harvest is sustainable and the controls in place to protect the animals it utilises.
1. Kangaroo PopulationsThere are 48 species of macropods (kangaroos) in Australia. Of these only 4 can be commercially harvested. In addition 2 species of wallaby are harvested in Tasmania. Over 99% of the commercial kangaroo harvest occurs in the arid grazing rangelands. The populations of kangaroos in these areas are estimated every year in each State by well developed aerial survey techniques. It must be understood that these are sparsely timbered, if at all, savannah type ecosystems. Hence it is possible to fly over them and count the large animals such as kangaroos seen. Using either low flying fixed wing aircraft or helicopters, flying at heights of 2-300 meters the National Parks Authorities count the numbers of kangaroos seen over fixed transects. Thirty years of such monitoring have allowed them to develop sophisticated and accurate techniques of extrapolating out to total population numbers (Grigg and Pople 2001). Kangaroos are one of only a very few species (including humans) who have an annual census of their populations. Current populations stand around the 25
million mark. This means there are similar numbers of kangaroos in
Australia as there are cattle (28.7
million) (ABARE 2002). Fig 1: Kangaroos are one of the most numerous large wild land mammals
on earth.
|
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facility type |
inspections made |
pet food transport vans |
76 |
kangaroo carcass holding chillers |
621 |
kangaroo harvesting vehicles |
1,076 |
kangaroo processing plants |
65 |
total inspections |
1,838 |
average no. inspections/day |
5.6 |
(Safe Foods NSW 2002) |
By anyone’s standard a very high level of monitoring!
The Kangaroo Management Plans have been operating under strict and intensive supervision for almost 30 years. Over this period the average harvest per year has been in excess of 2 million animals. In many respects we know the actual environmental impact of utilising kangaroos. Intensive use and scientific effort have answered the questions of potential impact and enabled industry to defend itself based on demonstrated science.
5.1 Population sustainability
As already discussed Figure 1 shows data collected over a 27 year period by Environment Australia on the total kangaroo population. Despite harvests in excess of 2 million animals per year throughout this period the kangaroo population has consistently increased. Even following the worse drought on record numbers are still at what could be considered historically typical levels. Their current population of 24 million is only marginally lower than the 25 year average of 26.7 million (which is skewed by the very high levels reached during a run of highly favorable years in the late 1990’s). This is a very graphic representation of the sustainability of the harvest.
In terms of kangaroo population the harvest is sustainable on a national basis.
Extensive data indicates
it is also sustainable on a regional basis and that the quota setting
process allows for the effects of drought
and other influences on the population. For example in NSW during the
drought years of 1981-85 populations of red, eastern grey and western
grey kangaroos fell by 57%, 72% and 54% respectively. During this period
the quotas were reduced by similar levels. However following the good
seasons of 1985-87 populations increased by 76%, 233% and 96% for the
three respective species, more than making up the losses during the
drought (Fletcher et al 1990).
On an even smaller regional basis harvest rates of up to 40% (much
higher than the national average) have been shown to have no effect
on red kangaroo populations on individual Queensland properties (Pople
1996).
A project conducted by NSW Dept Ag, which employed extensive
field study and highly sophisticated computer modeling techniques,
has provided
considerable light on why kangaroo populations are so resilient to
harvesting. The project examined harvester activity and modeled it
in response to terrain and prices paid for kangaroos harvested. It
demonstrated that in the areas investigated and at current prices,
20-40% of any one property will rarely be visited by a kangaroo harvester
because the terrain is too rough or other limitations make it not economic
for him to do so. These areas then become ‘refugia’, areas
in which the resident kangaroo population is never harvested and from
which the population expands to re-populate areas which are harvested
(NSW Dept. Ag. 2002).
e project further demonstrated that on the broader scale there are more extensive regions in which it is not economic for kangaroo harvesters to operate. In NSW for example it suggests that even at highly inflated prices for kangaroos, some 5% of the kangaroo population will be contained in large regional refugia which are never harvested. Add to this the kangaroos in national parks (in which no harvesting can take place) and 8% of the states kangaroo will never be visited by harvesters (NSW Dept. Ag. 2002). These are in addition to the smaller property based refugia previously discussed and clearly shows a significant proportion of the population is always left behind to supplement normal breeding in the harvested areas.
Finally the computer modeling demonstrated that even at inflated prices, kangaroo harvesting can never threaten the species. It has shown that relative to the effort required to harvest them, kangaroos are never likely to be valuable enough to harvest them down to levels which would threaten species viability. Quite simply once numbers drop below certain levels it is no longer economic to continue harvesting. These levels are well above threshhold levels under which the species would be consider under threat. The authors conclude:"Models presented here suggest that kangaroo populations may be more resilient to harvesting than we had previously thought" (McLeod et al 2001)
5.2 Effects on the species
The argument is often mooted that kangaroo harvesting selects
the largest animals and will therefore affect the genetic fitness of
the species.
The scientific data strongly refutes this argument. Four separate reports
have recently provided considerable evidence to show these claims are
mere unfounded supposition.1) An examination of the question submitted
to the NSW National parks and Wildlife Service in 2001 concluded:
"
Currently, there is no evidence of real or potential genetic ‘deterioration’ due
to harvesting, nor any reason to suspect it. Indeed, indications are
that kangaroo numbers would have to be reduced to extremely low levels
for genetic impacts to become important and by then other impacts,
such as demographic disruption, would be overridingly important" (Olsen
and Braysher 2001)2) A extensive report into factors affecting genetic
makeup in kangaroos by the University of Queensland concluded that:
" The effects of the commercial harvest are therefore unlikely to produce genetic changes in the population. First, the heritability of the characters in question is low. Second, the selection differential is low because differences in fitness between younger and older adult males is small, older males do not appear to monopolise matings, only a small proportion of older males are selected against (so most animals are in the selected group), and only a small proportion of the population is harvested." (Hale 2001)3) A study of Queensland kangaroo populations harvested at rates of 0 to 30% has shown no differences in the genetic diversity of the various populations. That is, intensively harvested populations show no reductions in genetic diversity compared to unharvested ones (Pople 1996). This study also cites information showing virtual uniformity of genetic codes across widely dispersed kangaroo populations, suggesting the extensive harvesting to date has had no effect on the species.4) A study conducted by the NSW Dept. of Ag. has applied extremely sophisticated computer modeling techniques to kangaroo populations dynamics. It has demonstrated that even after several hundred years of intensive harvesting there would be no impact on the genetic makeup of the population. A large cause of this being that there are always areas of rugged terrain in which kangaroos are never harvested (refugia) and migration of animals and their genetic material out of these areas offsets any selection which may occur through harvesting (NSW Dept. Ag. 2002)
Quite clearly the balance of credible opinion and evidence suggests kangaroo harvesting has no significant impact on the genetic makeup of the population. Further this is supported by real world, hard, industry data. In NSW in 2006 the average weight of harvested kangaroos at 21.6 kg was actually a little higher than the 10 year average of 20.6 kg (NSW Dept. Environment and Conservation Annual Report). Perhaps kangaroos are actually getting larger rather than smaller!
The rangeland environment of Australia, in which the vast bulk of the kangaroo population lives, also supports a wide range of other domestic, indigenous and feral grazing animals. It is a fragile region highly susceptible to overgrazing and resultant land degradation. In order to manage this environment the concept of total grazing pressure (TGP) has been developed. This sets for any one region the upper grazing pressure it can sustain and the mix of various animals which will generate that pressure. This management system requires that all animals contributing to the grazing pressure be controlled. Kangaroos typically represent 30% of TGP (Pople and Grigg 2001). If domestic stock numbers are set at estimated sustainable levels yet kangaroo numbers are uncontrolled the total grazing pressure will also increase and the environmental sustainability of the region will be placed at risk.
Thus the kangaroo
industry actually plays a significant role in ensuring the environmental
sustainability of these regions by providing a tool
for managing one of the largest contributors to total grazing pressure.
In its absence, the kangaroo population would be at least 30% higher
(Caughley et al 1987) and the risk of desertification and wide spread
loss of biodiversity high. The kangaroo industry plays a positive
role in protecting biodiversity in the rangelands.
Indeed several trials have clearly indicated that an uncontrolled
total grazing pressure presents a major extinction threat to a huge
range
of biodiversity (Caughley et al 1987). This has clearly been demonstrated
in work done at Hattah-Kulkyne National Park. Kangaroos can not be
commercially harvested in National Parks, as a result their numbers
often rise to staggering levels which sometimes require culling programs
to be used. In biodiversity monitoring done following a cull at Hattah-Kulkyne
increased abundance of 20 rare or threatened plant species was recorded
in culled areas compared with unculled areas (Sluiter et al 1997).
The kangaroo industry is often subject to claims from radical animal liberation groups that it is inhumane. These claims are rarely backed up with any scientific evidence, in the few cases where scientifically obtained data is cited it is invariably misrepresented.
7.1 The regulatory controls over kangaroo harvesting
All kangaroos are harvested by professional
shooters. Strict State and Federal Government controls ensure that
no kangaroo can enter the
commercial industry unless they have been taken by a licensed kangaroo
harvester who has passed a TAFE accredited training course which includes
training in the animal welfare aspects of kangaroo harvesting. In addition
anyone wishing to harvest kangaroos for human consumption must undergo
assessment of their accuracy with their firearm. The accreditation
and competency assessment are controlled by State Government regulations
in each State.
All kangaroos must be taken according to the strict guidelines laid
out in the Federal Government document ‘Code of Practice for
the Humane Shooting of Kangaroos’. This specifies the minimum
high caliber firearms which can be used, it requires that all animals
be head shot and documents procedures for the humane dispatch of any
pouch young (CNCM 1990).
7.2 The evidence concerning welfare outcomes
The kangaroo industry has been subject to considerable scrutiny over the years with regard to animal welfare. In fact it has encouraged this. In 1999 the Kangaroo Industry Association of Australia (KIAA) successfully lobbied the Federal Minster for Environment to fund a survey carried out by the Royal Society for the Prevention of Cruelty to Animals (RSPCA) which audited current welfare outcomes in the kangaroo harvest. This is discussed further below. A similar report conducted by the RSPCA i 1985 states:
If achieved correctly, kangaroo culling is considered one of the most humane forms of animal slaughter. An animal killed instantly within its own environment is under less stress than domestic stock that have been herded, penned, transported etc (RSPCA 1985)
The report however did consider that the methods used at the time could be improved and made a series of recommendations. At the time they found 85% of kangaroo were head shot. The vast bulk of the remained were heart shot. The RSPCA commented that a heart shot could be considered a humane outcome, but was clearly less desirable than a head shot.
With regard to the dispatch of pouch young the RSPCA concluded:
" The dispatch of pouch young by professional shooters was generally by a sharp blow to the head or by decapitation. There is no reason to consider this as a cruel act." (RSPCA 1985)
Since 1985 the industry has implemented most of the recommendations put forward by RSPCA to improve the harvest, as well as others which they didn’t think of. The accreditation and assessment of harvesters and an absolute requirement for head shot animals for meat production have seen major improvements.
In 1999 the KIAA lobbied the Federal Government to fund a new audit to document the current outcomes. This was conducted during 2001 and the report released in July 2002. It concludes:
" These results demonstrate that there has clearly been an improvement in the humanness of the commercial killing of kangaroos compared with that recorded in the 1985 Report. In 1985 the overall proportion of head-shot kangaroos in Australia was estimated to be 86%. In 2000/2002, it was 95.9%". (RSPCA 2002).
However the overall head shot
ratio needs a little clarification. The vast majority of non-head shots
(reported by RSPCA as body shots) were
high in the neck at the base of the skull and it appears the result
of harvesters deliberately targeting this site. Of 5083 kangaroos surveyed
by RSPCA, only 10 (0.2%) were actual body shots in neither the head
nor neck. Industry can claim that 99.8% of kangaroos are shot in the
head region exactly where the harvester aims.
Throughout the report the RSPCA clearly recognise and endorse industries animal welfare approach. For example at 3.2 RSPCA state:
" It was clear from the responses given that, not only have the kangaroo management agencies adopted the criteria of head-shot only, but the industry also uses a similar standard."
Some very well informed organisations support the kangaroo industry for a wide range of reasons, mostly because they see kangaroos as a more environmentally friendly way to produce meat in Australia than introduced sheep or cattle. However the support of the Australian Veterinary Association is telling in recognition of the animal welfare outcomes of the harvest. The AVA reported to the 1998 Senate Inquiry into Wildlife Utilisation:
" The Australian Veterinary Association believes that the Australian kangaroo population is a unique and valuable resource and that harvesting is a legitimate and humane use of that resource". (AVA 1998)
7.3 The ‘evidence’ of cruelty
Radical animal liberationists typically attack the kangaroo industry as ‘cruel and inhumane’, but rarely do they provide any evidence, rather the statement is simply a value judgment made by people who have rarely, if ever, seen a kangaroo outside of a wildlife park. Where ‘evidence’ is presented it invariably misrepresents the studies referred to above. For example it is regularly claimed that, "an RSPCA report demonstrated 15% of kangaroos are not killed cleanly and crawl away to die of their wounds." This is a misrepresentation of the 1984 RSPCA study referred to above. The only place in it where the figure 15% is mentioned in the RSPCA report is stating that at the time,15% were not head shot. The study found that most of these were heart shot and that, whilst less desirable than a head shot, "any placement of a bullet in the chest cavity causes instantaneous death" (RSPCA 1985). As mentioned previously things have improved dramatically since this study and the more recent audit demonstrates head shot rates now above 98%.
Other evidence of cruelty often cited is a video of a kangaroo
shoot obtained in 1986. This video was taken by a radical animal liberation
group who encouraged a unlicensed shooter, who did not have permission
to shoot on the property in question to commit gross acts of cruelty
to kangaroos whilst they quietly stood by and filmed. The man has since
been prosecuted, as probably also would have the animal liberation
film crew if they hadn’t left the country. This video is portrayed
as representative of the commercial industry, however the shooter was
not involved in it in any way involved in the commercial industry.
In the court case in which he was prosecuted it was revealed that he
was actively encouraged to commit his illegal actions by the film crew.
They told him they were from an American game shooting magazine. The
final hearing of the case in which penalties were handed down was in
Dubbo District Court 31 July 1997 NSW NP&WS v Eichner.
Numerous professional and credible environmental management organisations have published guidelines for the sustainable utilisation of wildlife resources including:
In all cases the kangaroo harvest fits perfectly or very tightly to the criteria for sustainable utilisation. Indeed the first two organisations have openly endorsed the kangaroo industry as fitting their criteria. For example CSIRO (Australia’s peak scientific research body) states:
" Kangaroo harvesting clearly meets most of the principals of sustainable use of wildlife" (CSIRO 1998).
The Australasian Wildlife Management Society, the peak representative body for professionals actively involved in wildlife management, state:
" AWMS supports the idea of achieving a conservation benefit from a government regulated, high value, sustainable kangaroo industry" (AWMS 1998).
Even many non government ‘conservation’ groups are vocal in supporting the utilisation of kangaroos. The South Australia Nature Conservation Society told a Senate Inquiry into Wildlife Utilisation that:
" We are in full agreement that regulated commercial utilisation eg. Kangaroo harvesting, on private lands are a potent driving force for the retention of habitats." (SANCS 1997)
Indeed many Australian NGO’s dedicated purely to wildlife preservation support commercial kangaroo harvesting as delivering conservation benefits.
The Australian Wild Life Preservation Society is actually the oldest conservation NGO in Australia, and regularly comment on the industry.
" There is no problems with harvesting native wildlife given adequate controls as well as no cruelty in the gathering." (WLPS 1998)
The
level of support for the kangaroo harvest amongst professional Australian
ecologists and conservationists sometimes astounds international
commentators. Public groups vocal in supporting the industry or with
position papers in support of kangaroo use include:
Nature Conservation Society of South Australia
8.1 Public support for the kangaroo harvest
Research has indicated that the majority of the Australian public
also support the sustainable utilisation of kangaroos.
Market research published
by RIRDC
has shown that in response to the question "Do you think kangaroos are a
valuable natural resource and we should make use of their meat and leather",
77% of Australians said yes, 16% had no opinion whilst only 4% said
no (RIRDC 1998). The study also demonstrated that over 50% of Australians
have tried
kangaroo meat.
The results of a range of public surveys on attitudes to the kangaroo
industry are given below. Some of these are media generated response
polls, these types
of surveys need to be interpreted carefully. However they do suggest
overwhelming public support for kangaroo harvesting in Australia.
Public surveys on attitudes to the kangaroo industry |
||||
date |
source |
question |
number surveyed |
result |
|
RIRDC |
|
503 |
77% yes - 8% unsure |
July 00 |
publicdebate.com |
Should we be eating kangaroo meat? |
7540 |
75% yes |
Mar 02 |
60 Minutes |
|
81% no |
|
May 02 |
Herald Sun |
Should state laws allow commercial use of |
87% yes |
|
8.2. Kangaroo utilisation and a new ecological model.
Australia is a vastly different environment to the 'Old World'. The
major influence on its weather patterns is the El Nino effect. This
produces
extremely variable
and unpredictable seasonal conditions. The Northern Hemisphere in
contrast, although subject to wide variations within a year has a
very repeatable
set of seasons
between years. The unpredictability of an El Nino climate has resulted
in vastly different environmental systems than those of the Northern
Hemisphere (Flannery
1996).
To date agricultural development in Australia has largely been based
on modified European systems, using European animals. In recent decades
this Eurocentric
view has come under considerable academic question. A ground swell
of opinion is developing that we should develop management systems
adapted
to our specific
environmental conditions, not impose systems adapted to the Old World.
Under this philosophy utilisation of free ranging populations of
native animals adapted to the environment makes enormous environmental
wisdom.
To this end the Australian Museum has implemented a major new project
aimed at encouraging the development of farm enterprises based on
utilising native plants
and animals. The project intends to monitor the environment benefits
that accrue from doing so.
Kangaroos don’t emit methane. Cattle and sheep do by the tonne lot and methane is 21 times worse than carbon dioxide as a global warming gas. It’s estimated the beef industry alone accounts for 15% of Australia’s carbon emissions. Perhaps replacing beef with kangaroo in our diet can help save the planet!
Kangaroo harvesting is a controversial topic and inspires
considerable passion and debate both for and against. Those for,
can demonstrate
that it is both sustainable
and a necessary tool in environmental management. They argue that in a protein
starved world it is morally indefensible not to utilise animals that must be
culled anyway. Many are also now coming to the view that kangaroo production
offers a more sustainable method of land use in the rangeland environment than
grazing sheep or cattle, that it has the potential to offer greater conservation
benefits past those which it currently delivers. It offers the opportunity
to release Australia from the shackles of Eurocentric management systems.
The kangaroo industry believes it is a model of wise environmental management
and this belief is supported by the analysis extensive scientific data and
the support of a wide range of professional scientific bodies. Further the
industry
believes that it points the way forward for a bright new future in the environmental
management of this land. It believes that producing our food from the animals
and plants which belong here and are adapted to this country makes enormous
environmental wisdom.
Internet based information on the kangaroo industry
For detailed Government fact
sheets on the industry and its controls see:
http://www.kangaroo-industry.asn.au/morinfo/fs023.pdf
http://www.ea.gov.au/biodiversity/trade-use/wild-harvest/kangaroo/harvesting/kangharv1.html
For a significantly more extensive and eminent discussion of the sustainability
of kangaroo harvesting see the background discussion paper to the federal governments
Management Plans for kangaroos at:
http://www.ea.gov.au/biodiversity/trade-use/wild-harvest/kangaroo/harvesting/index.html
References