Re: Questionable Culling in Kruger
Posted: Wed Nov 23, 2016 12:37 pm
https://www.facebook.com/groups/kruger. ... 565841456/
Dear Stakeholders.
SANParks is managing the Kruger National Park, often in the face of uncertainty. We are trying to better understand and manage a complex system which has been and still is being influenced in a very complex way by a complex set of drivers and human interferences (fences, artificial waterholes, unnatural diseases, climate change, removal of an erstwhile top-predator in the form of humans, etc.). The large herbivore biomass is currently the highest ever in Kruger’s history (plus minus 20,000 elephant, 47,000 buffalo, 7,500 hippo) and we see significant changes in habitat caused by these high numbers. Buffalo and hippo are drought sensitive species and previous droughts in KNP have shown population declines of up to 50%. Given that the buffalo population is at higher densities than previous droughts, it is expected that the population will incur huge losses during the current drought. If the numbers that remained after the previous droughts in the 1990’s for buffalo and hippo are considered (14,000 and 2,000 respectively) significant mortalities are anticipated. Hippos and buffaloes are the largest grazers with the highest biomass and impact on habitats. Other herbivores may be considered for removals in future.
The “purist” way of allowing natural attrition to take its course is not always ecologically the best especially if populations are unnaturally high due to man-made influences. It also ignores moral issues such as allowing animals to die and rot in the face of the huge protein need in neighbouring areas, as well as the still poorly understood role of pre-modern humans in keeping numbers down. The current drought is being noted for its unprecedented impact on human well-being with an estimated 22 million persons in Southern Africa in need of some assistance. SANParks cannot remain oblivious to this issue. The KNP is therefore planning to use the opportunity to sustainably harvest in the region of 350 animals during this drought in order to test different models for meat distribution to disadvantaged, low income communities on the border of the Park. The KNP will be targeting quintile primary 1 schools, part of the National School Feeding scheme, by supplementing protein in the form of game meat products. Given the Foot and Mouth Disease veterinary regulations, the Park will be testing the feasibility and suitability of cloven hoofed animals products permitted to leave the Park, which include: break-dry biltong (BRB) and well-cooked meat (WCM). A secondary objective of the removals will be assessing genetic selection for fitness during droughts and the interactions between disease and drought.
We are focusing with the removals on alleviating pressure on sensitive areas in the Park, e.g. removing hippo from small natural pools where they have concentrated in unnatural high densities, defecate in the water, making it unusable to other animals. These hippo generally originated from man-made dams that dried up and now populate small natural pools in large numbers.
True to our philosophy of adaptive management we are seriously considering the role of pre-modern humans on the ecosystem and especially keeping certain populations down or ecosystem engineering animals away from sensitive areas. We have already adjusted our veld burning policy away from purely natural fires (because for the 10 years we followed this policy more than 90% of all fires were anthropogenic and usually during very hot and dry conditions). We now follow a patch burning policy, the way the rest of Africa burns every year.
Culling, cropping, harvesting, ecological removals, sustainable resource use are all terms that have been used. If the term culling in your book means controlling the size of these populations, that is not what we are doing. The numbers are also not cast in concrete purely as it is not possible to determine how the situation will unfold as the drought further develops. However, the numbers are kept very low (between 0,5 and 1% of the respective populations). Logistically it will not be possible to do higher numbers now and ecologically it will not be suitable to do unsustainably high numbers in future. In view of the huge populations of these large herbivores and the mortalities we have already observed amongst buffalo and hippo this year, as well as the anticipated mortalities later in the year, these numbers to be removed are not significant at the population level.
It is estimated that approximately 15,000 people lived in what is now the Kruger National Park before the arrival of Europeans and the proclamation of the park. These people were pure hunter-gatherers and we greatly underestimate their role in shaping this ecosystem. We have removed this important driver from the Kruger ecosystem and we are researching ways to simulate the return of their role again. There are interesting theories such as the “landscape-of-fear” theory which showed how the reintroduction of wolfs changed the Yellowstone park ecosystem in the US positively. It would not be possible or suitable to reintroduce humans, but rather to simulate their influence in certain areas. There are currently approximately 250 registered research projects aimed at assisting us to understand this ecosystem better and we will continue to learn.
Finally, this is not a “sneaky reintroduction of culling by SANParks” as put by some. Kruger is managed according to an approved management plan that makes provision for both biodiversity management and sustainable resource use. Part of the process of drafting this plan was an intensive public consultation process. It is practically not possible to consult the public on each and every management action implemented. A new round of revisions of the KNP Management Plan has started and will come in full swing next year. You are encouraged to register with the office of the Senior Manager:
Park Planning and Co-Mangement at 013 735 4361 or marisa.coetzee@sanparks.org and take part in this process.
Dear Stakeholders.
SANParks is managing the Kruger National Park, often in the face of uncertainty. We are trying to better understand and manage a complex system which has been and still is being influenced in a very complex way by a complex set of drivers and human interferences (fences, artificial waterholes, unnatural diseases, climate change, removal of an erstwhile top-predator in the form of humans, etc.). The large herbivore biomass is currently the highest ever in Kruger’s history (plus minus 20,000 elephant, 47,000 buffalo, 7,500 hippo) and we see significant changes in habitat caused by these high numbers. Buffalo and hippo are drought sensitive species and previous droughts in KNP have shown population declines of up to 50%. Given that the buffalo population is at higher densities than previous droughts, it is expected that the population will incur huge losses during the current drought. If the numbers that remained after the previous droughts in the 1990’s for buffalo and hippo are considered (14,000 and 2,000 respectively) significant mortalities are anticipated. Hippos and buffaloes are the largest grazers with the highest biomass and impact on habitats. Other herbivores may be considered for removals in future.
The “purist” way of allowing natural attrition to take its course is not always ecologically the best especially if populations are unnaturally high due to man-made influences. It also ignores moral issues such as allowing animals to die and rot in the face of the huge protein need in neighbouring areas, as well as the still poorly understood role of pre-modern humans in keeping numbers down. The current drought is being noted for its unprecedented impact on human well-being with an estimated 22 million persons in Southern Africa in need of some assistance. SANParks cannot remain oblivious to this issue. The KNP is therefore planning to use the opportunity to sustainably harvest in the region of 350 animals during this drought in order to test different models for meat distribution to disadvantaged, low income communities on the border of the Park. The KNP will be targeting quintile primary 1 schools, part of the National School Feeding scheme, by supplementing protein in the form of game meat products. Given the Foot and Mouth Disease veterinary regulations, the Park will be testing the feasibility and suitability of cloven hoofed animals products permitted to leave the Park, which include: break-dry biltong (BRB) and well-cooked meat (WCM). A secondary objective of the removals will be assessing genetic selection for fitness during droughts and the interactions between disease and drought.
We are focusing with the removals on alleviating pressure on sensitive areas in the Park, e.g. removing hippo from small natural pools where they have concentrated in unnatural high densities, defecate in the water, making it unusable to other animals. These hippo generally originated from man-made dams that dried up and now populate small natural pools in large numbers.
True to our philosophy of adaptive management we are seriously considering the role of pre-modern humans on the ecosystem and especially keeping certain populations down or ecosystem engineering animals away from sensitive areas. We have already adjusted our veld burning policy away from purely natural fires (because for the 10 years we followed this policy more than 90% of all fires were anthropogenic and usually during very hot and dry conditions). We now follow a patch burning policy, the way the rest of Africa burns every year.
Culling, cropping, harvesting, ecological removals, sustainable resource use are all terms that have been used. If the term culling in your book means controlling the size of these populations, that is not what we are doing. The numbers are also not cast in concrete purely as it is not possible to determine how the situation will unfold as the drought further develops. However, the numbers are kept very low (between 0,5 and 1% of the respective populations). Logistically it will not be possible to do higher numbers now and ecologically it will not be suitable to do unsustainably high numbers in future. In view of the huge populations of these large herbivores and the mortalities we have already observed amongst buffalo and hippo this year, as well as the anticipated mortalities later in the year, these numbers to be removed are not significant at the population level.
It is estimated that approximately 15,000 people lived in what is now the Kruger National Park before the arrival of Europeans and the proclamation of the park. These people were pure hunter-gatherers and we greatly underestimate their role in shaping this ecosystem. We have removed this important driver from the Kruger ecosystem and we are researching ways to simulate the return of their role again. There are interesting theories such as the “landscape-of-fear” theory which showed how the reintroduction of wolfs changed the Yellowstone park ecosystem in the US positively. It would not be possible or suitable to reintroduce humans, but rather to simulate their influence in certain areas. There are currently approximately 250 registered research projects aimed at assisting us to understand this ecosystem better and we will continue to learn.
Finally, this is not a “sneaky reintroduction of culling by SANParks” as put by some. Kruger is managed according to an approved management plan that makes provision for both biodiversity management and sustainable resource use. Part of the process of drafting this plan was an intensive public consultation process. It is practically not possible to consult the public on each and every management action implemented. A new round of revisions of the KNP Management Plan has started and will come in full swing next year. You are encouraged to register with the office of the Senior Manager:
Park Planning and Co-Mangement at 013 735 4361 or marisa.coetzee@sanparks.org and take part in this process.