The elephant question seems to be taking on Eskom-esque proportions, IMO.
Kruger mentions varying figures, guessing as there have been no proper aerial censuses done for decades, but it seems around 25 000, with maximum carrying capacity having been suggested at 9500 last century, and maintained as such then via culling.
This means that elephant are the second or third most numerous herbivores in the Park, after impala, and depending on what happens to the buffalo in the drought. This is abnormal.
Elephant have been left to their own devices by management, with the hope that nature will take its course. This may well happen, hopefully with them cutting down on reproduction somehow...they are very clever. But regardless, many will die if the first dry cycle in 20 years continues, as happened in Tsavo, for example:
In the late 1960s, there were approximately 35,000 elephants in the Tsavo ecosystem (40,000 sq. km). This population has suffered two population crashes.
The first was the drought in the early 1970s when an estimated 6,000 individuals died and over the next 4 years with low rainfall and lack of vegetation a further 3,000 died. The majority of these deaths were females and young elephants. Unlike pregnant females, females nursing a calf or young calves, independent bulls were able to travel greater distances in search of vegetation and their mortality was lower.
http://www.wildize.org/projects/Wildlif ... cKnight/56
Tsavo lost much of its wildlife, numbers-wise, and the ellies were the last to die. The landscape changed, as it is changing in Kruger.
Besides congestion and tree depredation in "normal" rainfall years, drought years like this are upscaling ellie impact, IMO.
Ellies eat any plants, so are not too fazed. They are also adept at finding water. But during stress times they protect that water, as tourists would have seen for a year now, impacting on other species.
Kruger is even worse off than Tsavo and Chobe, IMO, as it is not just fenced but surrounded by communities on most of its boundaries. The closure of dams and artificial waterpoints may have an unknown impact too...this is all new ground, the first drought with so many elephant and unfortunately it is new for them too, which is the scary part!
Dr de Vos says the tipping point is long gone regarding infrastructure capability for culling to be handled internally by Kruger. There is a long discussion on the culling thread. Personally, I think with government and private involvement it could be sorted, and discussions have indicated sustainable use of Kruger elephant meat could solve protein requirements for not just SA indefinitely.
But anyway, this is unlikely, so the worst case scenario is as follows:
Instead of a slow deterioration in the ecosystem, things go badly wrong in a 7 year drought cycle in Kruger, as herds congregate along shrinking rivers and dams year after year. Remember, Kruger rivers are "end users", getting what they can after extraction and pollution upstream.
First bulls, stressed by overcrowding, then herds stressed by starvation, start breaking out of the Park more and more, raiding commercial and subsistence farms. they will be shot/eaten, but it will be a mess, and not good public relations regarding communities at all, leading to a perceived justification of killing ellies inside and outside.
Poaching syndicates have a royal time, as they have done with rhino, preying on common rural opinion and an enlarged perception that elephant are rightfully entitled to be used by the people, who are also meanwhile starving and in need of cash in a country which is by then in economic recession.
Government indulges in its normal paralysis and ostrich mentality, and behind the scenes rather concentrates on getting money out of it somehow, as per Zimbabwe, with large-scale corruption and lack of law enforcement. Short-term mentality.
Here are the two big problems, though -
1. The Kruger landscape is changed, not due to climate change, which takes a long time, but rather vegetation chaos, subservient species mortality, and bizarre predator increase. Heritage lost.
2. Tourists simply abandon Kruger due to the horror story unfolding and, especially international ones, head to other parts of Africa, where ironically elephant are now decimated, and ecosystems thrive... This leads to a cash crisis in Kruger, which means the entire SANParks, with the normal labour unrest and added incentive for custodians to jump in to make money with its remaining resources. The Lowveld economy also crashes, it is incredibly reliant on Kruger, and crime and protests erupts further, leading to less tourists, a vicious circle.
The point is, plans need to be made!!!!