9 October 2007
Dear Friends, Parents and Family:
We are back safely from our first major field trip. And as the green grocer said to Kathleen yesterday: Dartmouth indeed brought the rains. For the last three days we have had lightning, window-rattling thunder, and torrents that filled the roads and streams. Everyone is delighted and spirited by this important seasonal change.
But on 25 September we left a hot and dry Pretoria with the jacarandas showing only bare branches under the African sky. But we noticed a bloom here and there on them—a harbinger that the rains (and Dartmouth!) were coming. We drove out along the high veldt and then down the northern escarpment of the Drakensberg Mountains into the low veldt and JC Strauss' camp along the almost-dry Olifants River, at Phalaborwa.
This year, JC settled us into a South African Defense Force Special Forces camp, a fenced encampment on a bluff above the Olifants. Four of the students got the five-star room: high in the trees looking down on a row of hippos sunning themselves along a patch of flowing river. The rest of us scattered around the camp in rooms; the five young men of our group—David, Jake, Kyle, Colin and Dylan—and the two Shepherds bunked in two large rooms at a bush camp about 100 yards away. We were in Big Five country (lions, leopards, elephants, rhinos and cape buffalo) and we lived in a reverse zoo: We were fenced in, and the animals wandered about in freedom.
Thus our first lessons were tracking and observation, and our classroom was the open African bushveldt. JC got us all up at 0530—yes, Mom, that's five-thirty a.m.—and everyone showed up every day of this trip for tea, coffee and rusks (a hard and delicious Boer biscuit edible only by dipping it into a beverage) by 0600.
JC used what the environment gave him. First, he taught us to walk quietly in the African bush, single file, listening and looking at this new environment. Our first evening, he also had us separate from one another by 4-5 yards, and sit in silence listening to the African day become the African night. On this first evening, we heard frogs, the Mozambique nightjar (a bird), the grunting of hippos in the river, the alarms and calls of elephants.
Next, we discovered two elephants on a hill, and seven more feeding across a farther hillside. JC maneuvered us so that the wind came into our faces, rather than having the wind give us away, and taught us to read ground signs regarding these animals: prints, feces, urine, small branches stripped for food.
These observations proved valuable: millipedes eaten by a civet cat (not really a "cat" at all), python eggs, a fish eagle, and leopard, rhino, crocodile and hippo tracks along the sandbank of the river. We learned how different animals move, when, and how they communicate. The elephant, for example, steps on its own track, hind foot overlapping the print of the front foot. In dust and sand, the details of the elephant's padded feet are clear and one comes to understand how they can move almost silently through the bush; they can also pick up communications from other elephants through these footpads for up to 5 kilometers or more.
After almost 36 hours of field training, we took JC’s "live" tracking test in the bush. It turns out that some of our students picked up this skill quickly; Colin even declared that he was going to become an African guide! At JC’s we also gathered for our first group plenary meeting in the field, around a welcomed campfire (the temperature dropped just before the rains came). Sally, Erin, Kyle and Caitlin led the group in a discussion about what we had seen and worked on, and how we were adjusting to being in the field in such a large and diverse group.
After this initial exposure to the bush, we next camped at Timbavati, inside the fences on the western edge of Kruger National Park (KNP). Timbavati is the central focus of this first field trip. Having learned something about our new environment, its signs and characteristics, we now began to put this to work.
Timbavati curves for about 50 yards on the embankment along a dry riverbed inside the KNP boundary. It is Big Five country and not fenced. Wild animals can, and do, wander into the camp (or through it) day and night. The students were briefed on this, and alerted to be especially careful at night. (It is my personal belief that along with the academic program there should be an experiential component, which includes confidence-building activities in the field.)
At Timbavati, we were joined by two field biologists, Michele and Steve Henley. The Henleys are halfway through a five-year grant to study elephants and their impact on vegetation and water in this savannah region. In some parts of Africa, the elephant is endangered; across the continent, its numbers dropped in less than 10 years from about 600,000 to below 300,000. In Kruger/Timbavati, there are some 15,000 elephants. But some field biologists (not the Henleys) think there may be too many elephants in this region and that Kruger's carrying capacity should be around 7,000. To reach that number, there is a continuing discussion of “culling” (killing) elephants in the park. So the Henley's work is very important. They are analyzing elephant breeding herds and looking at impacts on them (weather, vegetation, water, migratory patterns, etc) Among other questions, they are asking: How can we identify elephants and what amount of destruction are the Timbavati elephants really doing to their environment?
We divided into three teams. Kathleen joined Group C (Kendri, Sally, Marissa, Kyle Lindsey and Caitlin). I was part of Group B (Clara, Dylan, Diana, Colin, Sarah, Jenna), while Dr. David Mbora, a professor in Dartmouth’s Biology Department, was a member of Group A (Juliet, Jake, Erin, Brenna, David Nutt, and our two Emmas, E. Palley and E. Virginia). After rising at 0530 and consuming coffee, tea and rusks, the three Groups went off into the bush. (We rotated activities over three days, so everyone got a chance to do all three.)
On the first day, for example, Group A spent the first morning with a very knowledgeable professional field instructor (Brendon) walking about 4 kilometers and analyzing the vegetation of the savannah, observing impala and other ruminant activities, and putting their new tracking skills to use.
Group B rode out to an isolated section of the riverbed for optional rifle craft training. This continues a five-year-old segment of the AFSP in which students may learn about the AK-47 and fire eight rounds at balloons and targets. Why the AK-47? This rifle, more than any other, has changed the face of Africa. In the early 1990s, tens of thousands were dumped on the global weapons market by the former Soviet Union (and later by China), where they became the weapon of choice of game poachers and, more recently, child soldiers. Some rangers and guides now also carry the AK-47. To know this weapon is to know more about the struggle between wildlife conservation, and the daily confrontation over wildlife preservation, especially endangered species like the rhino and elephant. (This segment of the AFSP is optional for students.)
Group C, with Kathleen, went out with the Henleys that first morning for elephant research and observation. On 29 September, Group B, my gang, did its elephant observation segment. We all rode together on an open, tiered Land Rover with no cover. The Henleys explained their fieldwork: observation, identification (usually by notches in the elephant’s ears), the use of GPS and collaring to find elephants, and then the analysis of their herd behavior. Elephant herds are matriarchal, usually controlled by an elderly female (60+ years), with a scattering of younger aunties and then breeding females, adolescents and very young ones; males are generally driven out of the herd around age 12-15 (if I remember the Henleys correctly). Those lone bulls may move in an area up to 3,000 square kilometers; one bull was tracked by another research team as he walked almost 50 miles to and from water and a cabbage patch he was raiding.
On this overcast day after an hour search we come upon a breeding herd of some 40 elephants. The elephants pull small branches from the mopane bushes, or uproot the bushes and eat the roots. Food before the rains is scarce, and an adult elephant may consume up to 200 pounds of vegetation daily. Some of the elephants pull up grass by the roots, shake it to get the loose sand off before eating—the sand will wear down their molars, and the average elephant grows only six sets of molars in his/her lifetime. Several very young ones are nursing; one we watch nuzzles alongside its Mom to find her right breast. Mom moves her right leg slightly one, and the youngster suckles (through her mouth, not her trunk). To shift the little one to her other breast, Mom moves her right leg back, covering that breast and easing the youngster off it. The youngster scampers quickly around Mom to the left side, where the leg goes forward and the little one continues nursing. I am awed by the ease of this movement and its delicate choreography, along with the utter safety of the small elephant under its huge Mom (three tons or more).
Just as it starts sprinkling, a second herd strolls in. These elephants are well known to “our” herd, and the two matriarchs, both with wrinkled skin, move quickly and sniff and greet one another. The two herds blend together in greeting; even the youngsters, some only 1-2 years old, touch the nostrils of their trunks to those of the other little ones, and then rub foreheads together and gently push each other. Adolescents wrestle with their trunks. The herds make a rumbling sound in their bodies as a way of greeting one another.
As the rain increases—we are getting a thorough soaking, but the elephants love it!—the merged herds, now about 70 elephants, move slowly to our right and into a large, muddy area. Here they toss mud on their backs; some of the adults actually lie down and roll in the mud. The little ones copy the adults and flop into it, or fling mud about with their trunks. A two-year-old (the Henleys tell us) tries a couple of mock charges: ears out wide, trunk up, trumpeting (the pitch is too high). Older elephants enjoy some butt and back scratching on old trees, and after many stomach rumbles the herds separate, one ambling down a path to the south and the other off to the west.
The rain stops and the sun, surprisingly hot, emerges once again. We are now soaked, and climb out and hang our rain gear on the Land Rover. The Henleys review with the students the elephants we have seen; they have a set of identification books. Notes are compared and Dylan has a series of photographs that are also very helpful in this task. That done, the students (encouraged by Steve Henley) practice “bok drol spoeg,” the field art of seeing who can spit impala dung the farthest. Impalas drop a convenient, small, round ball of dung perfect for the task. Sarah, Clara, Diana and Jenna are surprisingly good at this, although Colin gets a running start and appears to “win” the contest. The winner remains in dispute!
That afternoon we have a lesson in anatomy. One of the field instructors, LD from the Institute of Wildlife Management at the University of Pretoria, shoots a male impala. We gather in the sandy riverbed with the dead animal, cleanly shot once through the brain. (Impala are not endangered, but widely prolific to the point of causing destruction to some habitats used by other species.) LD teaches anatomy and this is a thorough (and respectful) class. First, Lindsey and Marissa lift the animal into a hoist and then, with LD’s help, into a support frame from a tree limb at the sandy edge of the dry stream. Under LD’s instruction, the students take turns removing the impala’s skin: Brenna and Marissa skin the left side; Erin, Sally, Kendri and David do the right; Colin finishes with the legs.
One by one, LD removes and discusses the impala’s internal organs: the gallbladder, liver, spleen, kidneys, heart and the lungs. He blows into the severed windpipe, which inflates the dark lungs, thus showing us how they work and making them a beautiful, lighter red at the same time.
As this is going on, we notice a dark-green/grey snake, perhaps four-feet long, sliding silently across the tops of the bushes behind the impala demonstration. We all move closer to look at it, and an instructor explains that this is a boomslang, one of the most poisonous in Africa. But not to worry: it’s back-fanged and would have to chew vigorously on an appendage (finger, toe) to inject any poison.
Back to the impala. LD explains that the impala is a ruminant with four stomachs. He removes them all as a single unit, and dissects each stomach starting from the one closest to the mouth to the fourth near the colon. We begin to understand the process of eating, digestion, rumination and excretion in these animals as we study the texture and condition of the material in each stomach. We even work our way down the colon to find those little, round pellets that are so easy to spit. Only now, we see that they are carrying out only what the animal could not use, which isn’t much.
Timbavati is packed with other instruction. Prof. Mbora continues his series of lectures on ungulates, vegetation and the African savannah. We discuss their impacts on the fragile savannah ecosystem. How do browsers and grazers influence woodland and savannah vegetation? Another day, the Henleys, Prof. Mbora and all of us examine an artificial borehole and discuss the “piosphere” (fat circles) of destruction by animals that graze outward from that water source.
One of the central confidence-building exercises at Timbavati is orienteering. On two occasions, the students go out into the field in their small groups with a compass and topographical map. For these afternoon exercises, we swap groups. I go out with Group A; they will have to take me and an armed instructor through three legs of a grid point and then back to camp. Our first task is to find “a green frog” (rubber) at each leg. After discussion among themselves and some map-and-compass readings in the riverbed, Jake and David take the first leg (Grid 222/260 meters), Emma Virginia counts the meters (with Juliet as backup), and the others sight the markers. We nail the first green frog hanging on a string from a low tree. Erin and Brenna take the second leg (Grid 152/ 100 m), Emma Palley measures the meters, the rest do the sightings. We find the second rubber frog on a dead branch. The team works together on the third leg (Grid 99/ 360 m), switching assignments, and after a longer walk we re-enter the dry riverbed. No frog. Ah, but less than 50 feet down stream we find the third frog dangling from its string on a stick in the sand. Much cheering and congratulations. Group A reconfigures for the next task, and taking turns navigates with compass and map an almost direct line through the African bush back to camp.
The second, and tougher test of orienteering came on 30 September. I went out with my usual morning group from Group B. We all climbed into a Land Rover, blindfolded our own eyes, and rode out into the bush with an armed instructor. Blindfolds off. Where are we? Group B first has to locate themselves using landmarks, and then find its way back to camp (and to my afternoon tea!). They are superb! First, they stand still, discuss where we might be, get a bearing. Then, they find a landmark. After some minor hesitation and interspersed with discussions, we all walk for 47 minutes to discover an abandoned dirt airstrip we had seen earlier. Next they take a compass reading, and plot their way to camp (which was marked on their map). Every 100 feet or so, they repeat the process: Reading, landmark, walk. Sharing the work and sightings, they reach camp in under two hours of walking. Excellent work! (And the tea tasted especially delicious!)
Timbavati is well known among our students for wildlife sightings. In day training and evening game drives, we spotted giraffes (including a very young female), three rhinos (a mother, her calf, and her next suitor, a huge bull), zebra, Cape buffalo, various hawks, owls and vultures, plus the usual brilliant assortment of birds. One morning we come upon a small pride of lions: four two-year-old cubs, two lionesses, and a handsome male, all (as they say) “in good nick,” in excellent condition. We roll up close (10 feet), turn off the engine on our Land Rover, and watch them—well—sleep. It is mid-morning. I had heard them at dawn roaring. To be honest, lions in daytime are boring; they move about as much (and in the same ways) as your domestic house cat. These ignore us (as long as we stay seated in the vehicle we are perfectly safe).
However, then we notice an old female stretched out on the track in the dust, sleeping. She is grey-muzzled, her fur darker than the younger lions, her ribs and pelvic bones protruding. When she rolled over, I could see a slash wound down her right leg. It was open enough to see the ligaments. When she stretched onto her back, we all gasped: she was mortally wounded. There, on her upper right chest to the left of her leg was a deep, penetrating wound perhaps 6 by 8 inches. We speculated that she may have been attacked by another pride in a territorial dispute, or gored by a wart hog or a buffalo.
The pride ignored her, and as the morning progressed they slowly moved away from her deeper into the bush. Our instructor estimated that she had no more than a few days to live. That night, we tracked by vehicle the male as he made the rounds of his territory, marking it with urine and on one occasion a magnificent series of roars. The cubs and females, including the old grannie, were nowhere to be seen. Lions are in some difficulty across southern Africa. In our final leg of this field trip we pitched up in the crowded research and tourist camp called Skukuza, in Kruger National Park (KNP). Skukuza holds about 2,000 people—all inside a fence—and is the principal research camp of this large and important national park. (Kruger is the size of New Jersey.) We had lectures in the field about fire control and management (much of this section of KNP was accidentally burned during July and August), alien species of plants intruding into the ecosystem, and water management issues in this dry savannah. A fourth lecture discussed, among other issues, the increase in tuberculosis among the lion population, which is being infected by the Cape buffalo. A drop in the number of lions is of great concern, since tourists come to the national parks to see the Big Five, of which lions may be the most dramatic. (Anyone who has seen lions hunt and kill a large prey like the Cape buffalo will know what I mean.)
The interaction of humans and wildlife come together over the diseases threatening these species, and over the impacts that human are having on these conservation areas like Kruger and Timbavati. Another lecture linked these issues in discussing “social ecology,” the expansion of national parks, and the protection of challenged ecosystems. Kruger is now taking down its eastern fence along the Mozambique border. It is translocating some 6,000 elephants across the line. In the next two years or so, Kruger will join with the Limpopo parks and a major park in Zimbabwe to form a Trans-Frontier Conservation Area (TFCA) roughly the size of western Europe. Eight such parks are underway across southern Africa, and more are in agreement or planning stages. With this large-scale effort to conserve ecosystems, biodiversity, wildlife, etc comes a difficult task to incorporate large numbers of very poor people who live along the edges (or sometimes inside) these conservation areas. Without bringing them into the wildlife, tourism and environmental equation, these expanding TFCAs will not be able to move forward. Thus, our next field trip, which beginning tomorrow (10 October), will focus on indigenous communities: the farming community of Kaphunga, Swaziland, then onward to eastern Kwa-Zulu Natal (South Africa) to visit some of the communities being brought into the economic and environmental issues of wildlife management, tourism, expansion of conservation areas.
I should close by adding that we saw wild dogs in Kruger—a first for me in 40 years of African experience. We returned to Pretoria ready last Thursday (4 October) ready for laundry, home cooking, rest, and more lectures preparing us for tomorrow’s trip.
Dartmouth did indeed bring the rains, and some unseasonably cold weather. But the Africans celebrated with us: the rains have come, a blessing to Africa and its people. The jacaranda trees are almost in full bloom now. Their lavender petals scatter across the red clay soil, their promise fulfilled.
Cheers,
Jack and Kathleen