I took Snoopy out and we searched the road where the cheetah footprints were but sadly did not turn up anything. Snoopy and I are both learning as we go so I wondered if perhaps he was not searching properly, or was getting distracted so I decided to test if this was the case. I took him home, and went back out with a sample and threw it out of the vehicles window just off the road. I did not place the sample on foot as he may have picked up on my smell, and homed in on that. When we went back, Snoopy found the sample, suggesting he is searching correctly. This leaves me with two possibilities. Either, there really were no fresh scats there, which is a possibility because the cheetahs were looking very thin. With carnivores, they gorge themselves so at meals that you can gauge how full they are on a rating of 1-5. 5 is a very full, pendulous stomach on cheetahs, and 1 is an empty stomach that is sucked up towards the spine. I would have placed these cheetahs at about a 2, so they would have spent the past couple of days without a large meal. With this in mind, it is possible that there were no scats. The other possibility is that Snoopy is looking too specifically for the particular animals scats. My samples come from another project and are from only 3 individuals. Work in the US has shown that dogs can identify to individual level from scats. I do not think this second scenario is likely as we are both still learning and I do not think we are at that stage yet, but it is possible. To address this I will now introduce scats of different species and teach him to ignore them, and will try to source more cheetah scats from different cats.
The Cheetah family that had become split up by one of the cubs finding its way through the reserve boundary fence has been reunited. On our way to the area where they were last seen calling to each other through the fence, we picked up the tracks of the whole family walking along a road. They are all now on our farm, and outside the boundaries of the formally protected areas. We carried on to see where they had crossed onto our farm, and found holes pushed through the fence very close to where the first cub came through. The tracks on the Venetia side of the fence has been largely obliterated by guinea fowl, which come out to forage in the early morning, so we think they probably crossed over yesterday evening. The family of cheetahs are safe here, but they are unlikely to stay for long. The fence surrounding the De Beers Venetia Limpopo Nature Reserve is an electrified predator fence that is designed to keep predators from crossing it, but often these animals have different ideas. Where the cheetahs crossed, they had simply forced their way through the strands of wire, rather than the more usual method of using holes dug under fences by warthogs. Our fence is not electrified on the three sides that do not form a boundary with Venetia, and so the family will have no trouble in moving on. My main concern is actually not for their safety with other farmers, but rather their safety on the road. Two boundaries of the farm are with tar roads, and while there is thankfully very little traffic, the traffic that is here tends to be going very fast. We need to know what is happening with these cats. As I have mentioned in previous postings, our habitat here is much thicker than typical cheetah habitat, with the bush being too thick in many places to hunt in the normal way of chasing down quarry with a burst of high speed. We need to know how this affects this size of the areas they cheetahs use, what they are eating, and what their survival rates are. GPS collars allow us to plot their movements accurately without habituating them, and we can even use them to collect data on what they are eating. In my experience on a previous project I worked on with cheetahs, they keep moving in the morning and evening unless they have just eaten and want to sleep off their heavy meal. By closely monitoring their movements, it should be possible to see where we think they may have eaten and respond by taking Snoopy to the site and sending him to look for the carcass. He started his career on finding the carcasses left by cheetahs in thick bush, and can be a great deal of use with this as well as looking for scats. I am going to take him out now to walk the road where the cheetahs walked this morning to see if we can find any scats. I will let you know what he turns up. The GPS collars we need are so essential to this work. Wherever possible we make our equipment ourselves and manage with the cheapest workable options we can find, but in this case we simply do not have the knowledge and technology required and will have to buy in these collars. Any help will be very much appreciated and will have a very positive impact on the work we are doing in this area.
I am in the lucky position that my husband’s farm lies directly adjacent to the De Beers Venetia Limpopo Nature Reserve and falls within the greater boundaries of the Limpopo-Shashe Transfrontier Conservation Area. We have myriad wildlife species on the farm, but also farm on a modest scale with goats. Obviously there can be conflict where predators and livestock, particularly small stock like sheep and goats, are concerned but we try our best to mitigate these issues with responsible farming practices. All our livestock comes into pens at night where it is safe from nocturnal predators, and during the day when the flock is foraging, they do so under the watchful eye of Pego, our Anatolian Shepherd Dog. This is a breed that was specifically developed in Turkey to guard sheep and goats from wolves and bears, and is being successfully used in Southern Africa to guard against predators. Pego’s job is not to attack predators, but rather to scare them off and send them in search of unprotected natural prey species. Since Pego came to live with us, we have not lost a single goat to predation. Pego does not live with Snoopy and Barclay at our house, but lives his entire life with the goats. He was put with them as a young puppy, and so associates himself with goats more than dogs, which makes him good at his job. Pego’s skills may be put to good use in the next few weeks, as a female cheetah with cubs (as yet unidentified) on Venetia has been pacing our mutual fence line with two of her cubs. We watched them in the dwindling light this evening as she called onto our farm continually. Looking in the sand, we saw a clear set of small cheetah prints on our side of the fence, so one of them has come through. Further searching turned up the spot in the fence where the animal breached the boundary. A hole in the fence showed the pawprints on both sides, and the tuft of hair snagged in the barbed wire of the fence showed that the animal had come from Venetia onto our farm, but the high grass following this years good rain means that we could not follow his or her track for far. We agreed with reserve management to leave the hole in the fence for now, to allow the cheetah family to try to reunite. I estimate the cubs to be no more than nine months old, if that, and as such to be fully dependent on the mother for food. We have never lost a domestic animal to cheetahs, and we do not mind our predators eating the wild animals as it is what they are here to do, so if the whole family moves onto our farm, they will be welcome. A significant part of our work here is to look at the difference in the success and survival of our subject species on protected land and on farmland, and to this end we plan to fit radio and GPS collars to a number of cheetahs to gain a better understanding of their movements across different land uses. Radio-collars are by far the cheapest option, but regular tracking quickly habituates cheetahs to vehicles, which is wonderful on protected land, but may well sign the animals death warrant on private farmland where some farmers do not tolerate the presence of cheetahs. A cheetah that has become relaxed enough around vehicles not to run off at the sound of an approaching motor vehicle, may well give a less tolerant land owner time to load and fire a gun, that he would not have if the cheetahs remained more shy. The small farm size in the area of an average of approximately 2000 hectares means that the cheetahs will cross many peoples’ land in the course of their lives, and tracking them becomes very difficult when you have to get each landowners permission. This work with the cheetahs in South Africa is extremely important as it is thought that more of them live on private farmland than on protected areas, and so a full understanding of how they operate here is essential to devising long term conservation strategies for cheetahs in this country. We desperately need GPS collars. We have a permit to fit collars to five cheetahs, but only have funding for two GPS collars. We will be putting all donations, unless otherwise specified, towards these collars which are so essential to this work which I believe is it at the heart of cheetah conservation in the world in which we live today. I would like to sincerely thank Andrew F for his generous donation, which we will be putting into our fund for GPS collars.
It is with heavy hearts that we have to report the sad death of one of our Wild Dogs, an adult male named Dalerwa. We thought we had lost him earlier in the month when the dogs came across a group of Lions in thick bush. The pack, minus Dalerwa appeared unscathed and we assumed the worst had happened, but he happily reappeared with the pack in perfect health a couple of days later. As he does not wear a radio-collar, his whereabouts during this period is unknown. The conflict between Lions and Wild Dogs is well known, and having been born on Venetia which has a very healthy Lion population, Dalerwa would not have been naïve of the dangers. It is always sad to lose an animal, particularly one that has been well-studied, but we try to remember that it part of the natural process. As a subordinate dog, Dalerwa did not play a part in the reproduction of the pack, but was a notably good hunter and provided generously for the pack’s puppies. As we go into the season where the Wild Dogs will den and produce another litter of puppies to feed, it may be that his absence is felt by the adults of the pack, who have now dwindled to just 4 in number. Wild Dogs are extremely resilient and we will keep you posted on their progress.
The call-ups on Mapungubwe National Park went well, though with a few unexpected responses. Like on Venetia, there was no response at all at the first site of the night, but the second site saw three inquisitive Spotted Hyaenas coming in to see what was going on. Further along, we heard Spotted Hyaenas whooping enthusiastically from across the Limpopo in Zimbabwe, but the river is flowing at the moment so they were unable to cross into South Africa. That part of Zimbabwe is communal land and it is heartening that these large and often unwelcome carnivores are hanging in there, despite the pressure. The next response was from an outraged Wildebeest bull, who came charging through the scene, snorting angrily. Perhaps we were interrupting his evening, or maybe he was responding to the plaintive wails of a distressed calf in the call-up recording.
One of the pitfalls to avoid with training sniffer dogs is that the dog mustn’t be following the handlers scent to the hidden scent article. We may not like the idea of it, but to our canine friends, we smell very strong and it is very easy for them to follow where we have been. I first held Snoopy in the palm of my hand when he was about 24 hours old, and he is very much my dog. For the first year of his life, it was just the two of us, and we formed a very strong bond. We now live in a far more social setting, with my husband, daughter and four other dogs, but our bond remains. He could find my scent anywhere. He has been doing very well with finding the scat samples, and in his first open field trial, he found all the samples as well as the containers that I had brought them in. In order to test that he is looking for the cheetah scats, and not looking for something with my scent on, I set him up with a trial where I placed two identical pots out, one containing a scat sample and one without. I then sent him into the area to search for the scent. In 11 out of 12 replications, he went straight to the pot containing the sample, and with the remaining one, he quickly ignored the empty pot and continued on to find the real sample without any further prompting from me. This is all the confirmation I need to show that he is indeed looking for the right scent. As our bush is very thick, I wanted Snoopy to work with a bell on his collar to help me keep tabs on him, but for some reason he absolutely hates it, and so as a compromise, he wears an alarmingly red collar which shows up well in the field. Barclay is a little slower off the marks, due almost in entirety to his age. At about 7 months old, he is still very much a puppy and has a very limited attention span at the moment. I am giving him space to grow up, learn about the bush, and learn some basic obedience. He is passionate about tortoises and finds them often on our walks, so I have no doubt that his nose works. His other big passion is Nightjars, a small nocturnal bird, that has a dog-enticing habit of flying off only a short distance when startled before resettling on the ground. His nose works, and his will to search is there, so I don’t doubt that he will grow up to be a great dog. For the next month or so though, he will be busy just being a puppy.
Two cool still nights provided perfect conditions for our call ups. Too much wind can disrupt the distance the call carries and in the past we have had to postpone our survey last minute because the wind was too high. The first site didn’t bode well for a productive night with no visual or vocal response, but spirits soon picked up at site number two where we were rewarded with two Spotted Hyaenas coming in. While they are more familiar to most people that their brown relatives, they seem to be more scarce here, and we certainly see them much less often. This may be due their being persecuted more heavily by farmers before the land was protected, due to their more predatory nature and due to the ease of locating them as a result of their vocalisations. It may be that they were more easy to wipe out by poisoning, which was commonly used in this area in the past, due their tendency to forage together. Brown Hyaenas are more likely to forage alone, and so a poisoning incident would maybe kill only one clan member than several. Happily, Brown Hyaenas seem to be doing very well here and all evidence points to the Spotted Hyaenas making a comeback. In total, we called in six Spotted Hyaenas, four Black-backed Jackals, four Lions and five Brown Hyaenas. Of the Brown Hyaenas, four came into one site at the same time, which is very unusual. As it was the first site of the night, just after dark, I suspect that we were calling near their den site and that they were all still nearby at the beginning of their evenings foraging. The site was near a dry riverbed, which is known to be a preferred choice for Brown Hyaena den sites. This week we will be taking our speakers up to Mapungubwe National Park to carry out our surveys there. Call-ups we have carried out there in the past have shown good numbers of Spotted Hyaenas, and there have been reports of more lions moving into the park, so we are very excited to see what comes in.
One of the ways of determining population density of some species of carnivore is to take advantage of their opportunistic nature and play calls of a distressed prey animal over loud speakers to attract them to the area. By working out how far the call can be heard, we can work out the area that is covered by the call, and so calculate the density of animals in the area. This must, of course, take into account that not all target animals will respond. Due to the differences in vegetation and topography, calibration onsite is essential, as the response distance here on Venetia may be quite different from in other places where the work has been carried out. Earlier this week, we tested this by sitting one vehicle with Tsotsi and Tsala, two lionesses at Venetia, and their cubs and another vehicle taking the call-up equipment (a public address system with loud speakers) to 5km away. In radio contact with the team sitting with the lions, Wendy and Azwafarwi moved closer until the lions pricked their ears up in the direction of the call. They responded at 3.5kms, and so this is the distance we use as the radius for locating our call-ups stations to ensure there is no overlap. To minimise the chance of counting the same animal twice, all the call-ups will be done as close together as possible. Watch this space to see what comes to the calls!
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