Red Oryx...Colour Variant or adaptation...? |
Study into the effect on biodiversity
commissioned
(article by Monja Viljoen: AgriForum, Volume 25, August 2012) agriforum@agrinamibia.com.na
The South African National
Biodiversity Institute (SANB) has commissioned the University of Stellenbosch
(US) to conduct a study into whether or not the breeding of colour-variant game
poses a threat to biodiversity.
This comes amidst an
international debate about whether or not these variations are man-made and constitute
genetic modification or is an act of God. Opinions on the matter differ vastly.
While some say these game ranchers are breeding for recessive genes which are
rare in the wild for a reason as they come with weaknesses and problems, others
say the issue is unnecessarily over-exaggerated and sensationalised.
Dr Louw Hoffman from the US Department Animal Sciences is looking
at how and where these colour-variant animals evolve from. He and his team are
also trying to determine what the risks are, if any at all, in the event that
these animals escape from game farms and are bred with normal variants. “We are
also trying to see how these colour variants inherit their colours. It is quite
difficult actually, as we do not know much about colour inheritance in African
wildlife. Some look like single gene inheritances, while others are more
complex,” he explained.
Dr Hoffman
invited Namibian farmers to contribute to the study by sharing any knowledge
they have on colour-variant game. “Unfortunately we do not have the time to,
for example, mate a golden gemsbok bull with a traditional gemsbok cow, so we
will have to base our study on whatever information farmers can assist us with.
Keep in mind that the golden gemsbok and the black-nose impala come from
Namibia and we therefore welcome the contributions of Namibian farmers. I can
be reached at lch@sun.ac.za
or telephone +27 21 808 4747 or fax +27 21 808
4750.”
The breeding of colour-variant
game, or CV game, is currently one of the most lucrative forms of land use in
South Africa. Prices have over the past few years shot through the roof, in
some cases even increasing a hundredfold. The value of black Impala, for
example, is reported to have increased from R160 000 in 2005 to a staggering
R360 000 per animal in 2012. A normal impala fetches about R1 400.
Gerhard Damm, president of
the Applied Science Division of the International Council for Game and Wildlife
Conservation (CIC), wonders whether these prices reflect the market from the
supply and demand side where the demand side is defined as users such as
hunters, and not other game ranchers. “I suspect that these inflationary prices
rather represent a pyramid system where the initial investors make big money
and those who come later are struck down when the system collapses."
Like paging through a cattle stud book
Gerhard, who is also the
editor of the African Indaba
e-newsletter, says it appears that the increase in intensive breeding
operations and the total focus on economic gain creates a precarious similarity
to the intensive lion breeding and canned shooting of lion, which led to the
conservation and hunting world frowning upon SA. He referred to recent issues of
a SA specialist magazine, in which advertisements with photographs of African
buffalo, as well as photos of “pure-line cows in calf by denominated sires”
resembled something out of a cattle breed studbook. That some of these sires
apparently "reside" overseas, he added, points towards an
international trade in semen straws.
“New antelope ‘subspecies’
are ‘discovered’ and named and golden wildebeest are now in good company with
golden gemsbok, copper springbok, black impala, king wildebeest and whatever else.
In many cases, these ‘subspecies’ are mixed and matched to achieve an ever-increasing
‘trophy quality’, irrespective of their origin. If you ask why, you are told it
is because the hunting market demands quality trophies or the breeders aim to
restore animals to a trophy quality which has been lost because of
indiscriminate hunting. Haven’t we heard that already from the lion breeders as
an apology for excesses in lion breeding and canned lion shooting? I am certainly
not against controlled ex-situ and in-situ breeding of wild animals to
eventually restore them or their offspring into the wild where they can
eventually reproduce and be subjected to sustainable harvesting, but can you
imagine that buffalo, acquired at the cost of several million rands each, will
ever be released into an eco-system with lions present? The same applies for
antelope colour phases,” he says.
According to him, some game
breeders in SA are now using practically all methods of artificial
manipulation, including artificial insemination and embryo transfer, but also
hormone treatments and specially formulated booster diets. Some also source
breeding material on the international market to achieve the desired objectives.
“These domestic livestock production methods do not only exponentially speed up
the selection processes, but also influence fertility, growth rate, food
conversion efficiency and even behaviour. Therefore the danger is great that
these until now largely uncontrolled activities may eventually lead to
polluting or even losing wild local phenotypes or regionally significant
wildlife populations. I am very much in favour of free market systems, but we
are in dire need of compartmentalisation and some sensible regulation.”
Gerhard added and quoted
Phillipe Chardonnet, Director of IGF and co-chair of the IUNC Antelope
Specialist Group as saying “...the problem for biodiversity integrity comes
from [mixing] compartments and from the proactive creation of freaks by some of
the stakeholders for business only, [with negative] impact on conservation...”
Gerhard continued that the
game industry has done a lot of good for the South African conservation
revolution. Game ranching does have many proven advantages that rest on
economical, ecological and socio-cultural pillars. “The sensible interaction of
the three pillars makes out the conservation revolution of South Africa. There
is enough space for economic growth without having to resort to artificially
manipulating the wild heritage of Southern Africa.”
He also refers to an
article by David Mabunda, CEO of South African National Parks, published in
Peter Flack’s book The South African
Conservation Success Story. David makes some very important observations
and right in his first sentence says: “Despite the benefits hunting and
wildlife ranching have brought to SA, the future of wildlife and its
conservation in this country may well be at crossroads.”
David then sketches two
possible scenarios which could emerge from the status quo. The status quo is
the fact that SA does not have a land and wildlife conservation model that
enfranchises large numbers of previously disenfranchised people, that new
entrants to SA game ranching have brought with them methods from the domestic
livestock industry, and that a significant rise in "canned" and "put
and take" killings has tarnished the image of hunting in SA. Breeding
methods have raised concern and controversy and game ranching has been accused
of doing nothing to biodiversity conservation, while at the same time demeaning
the lives of wild animals and recreational hunting itself. He then asks: "Is
SA’s quiet conservation revolution still on track? Is it a business model with
conservation as a by-product or is it a conservation model which also provides
economic benefits to the stakeholders?" Two different scenarios eventually
emerge from David’s observations: a worst case, where cause and effect will
drastically reduce the land under wildlife and reverse all the successes of the
past five or six decades, and a more optimistic scenario likened to a
three-legged stool where the public and private sectors and the dynamism of the
markets combine as driving forces for conservation, and wildlife and habitat
flourish.
Over-sensationalised
Meanwhile, Peter Oberem,
deputy president of Wildlife Ranching South Africa (WRSA) and Managing Director
and Chairman of the Board of Afrivet, says the issue is being over-emphasised.
“Firstly, colour-variant game is not a ‘new species’ or ‘subspecies’, but
simply normal genetic variations in a normally diverse genetic pool. Also,
referring to the practice as ‘genetic modification’ is pure sensationalist as
it is just a normal process as seen in all animal and plant populations. In
principle I believe the broader picture of the conversion of millions of
hectares of land from marginal domestic stock ranching to a flourishing game-ranching
industry is really where the emphasis should be and not on one or two of the
smaller issues which seem to be more sensational. Natural free-market systems
will limit any of these latter issues to a small part of the whole wonderful
story.”
As for the alleged embryo
transfer breeding practices, he added that the WRSA has a clear statement that
these techniques should be limited to a genuine attempt to save species from
extinction and should only be permitted with approval from the SA Department of
Environmental Affairs (DEA). Moreover, stating that colour-variant breeding
activities, if uncontrolled, may eventually lead to polluting or even losing
wild local phenotypes, he says, is pure speculation. “These so-called
uncontrolled practices do not occur in our national parks, which are
responsible for the preservation of our genetic diversity. Also bear in mind
that the huge areas of land now used for private conservation previously had
only domestic animals on them."
With regard to the issue of
disenfranchising people, Peter added that WRSA has a clearly defined
transformation policy and is in the process of establishing a transformation fund
to contribute to the cause.
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