Here at Snapshot Serengeti we are lucky to get regular good images of all the big cats. Lions feature the most frequently followed by cheetah with leopard being the rarest. This is not surprising when you think that lions like to spend the day sleeping and resting after their night-time prowling. This means they make a bee-line for the shade of trees. Cheetah have the same idea, staying out of the sun during the day. Leopard of course tend to be up those trees and so its harder to capture them on camera trap. We are still waiting for the day that we get a capture of a fury belly as a leopard leaps up over the camera on its upward trajectory. Imagine how hard that could be to identify!
Looking through some of the recent images from the most recent batch we came across this series of three images of a cheetah walking right up to the tree the camera-trap was on, presumably to settle down for a nice nap, but is that all there is to this tree/cat relationship?
Cheetah, as I am sure you are aware are at the bottom of the big cat chain. They don’t do well in a fight against lion, leopard or hyena for that matter so they have to stay alert to danger. They need time to slink away or flee at speed.
So now picture this, a cheetah is sleeping in the grass, it wakes up and wants to survey the plains to see if there is either prey or danger about. It sits up and bang! its seen by anything that happens to be near by. Now rewind a bit, the same cheetah has a nap under a tree. This time it sits up to survey and its slender body is masked by the trunk of the tree. Its not nearly so easy to spot from a distance.
Ok so its just a theory and probably cheetah primarily spend time underneath trees from a purely physiological perspective but it would be nice to think they were also using their tree as a point of tactical surveillance. Certainly in the hot shimmering air of the Serengeti it is hard to see a cheetah that is sitting upright under a tree until you are pretty close by. In my experience although lions like a tree too its just as likely that you will find them lounging in the shade of an erosion channel or small bush but cheetah always seem to by in that classic pose under a sturdy tree when resting.
It gets you thinking!
It seems as though when it comes to lion ecology most of the experts seem to agree that male coalitions are usually the most successful at holding on to females and siring cubs. Certainly when take-overs happen it is usually the coalition with more members that wins the day and lone males find it hard to stand their ground. Numbers seem to count.
Of course that isn’t to say that single males can’t have fun or success. Take Kalamas, a male known to us in the Ngorongoro Conservation Area. He is a nomadic male who wanders far and wide across the area even daring to take trips into the Crater itself, an area that in terms of lions is heavily defended by resident males, competition is very strong there and really not a place for a none resident lone male to be seen.
So what is so different about Kalamas. Well firstly he doesn’t seem concerned about the competition. Earlier this year whilst monitoring the Crater Lion’s Ingela Jansson of KopeLion project spotted a very distinctive dark maned male that she recognised as Kalamas. The last time he had been spotted in the Crater was in November 2015 but this time there he was in full view lounging around mating with one of the Lakes pride females. In the background four contesting males could be heard roaring their presence.
Kalamas ignored them and had the audacity to stay put in the crater with the female for three days before walking back up the steep Crater slope and out onto the open plains of the Ngorongoro Conservation Area where despite being surrounded by Maasai herders and their live stock he managed to stay out of trouble.
A few weeks later however we received a frantic message early one morning to say that Kalamas was sitting out in the open with many herders starting to gather. Fearing some sort of conflict our team rushed to the area, luckily fairly close to headquarters. Once there we could see that people were sensibly keeping a safe distance and approaching by car it was evident that Kalamas had been fighting. He showed deep wounds characteristic of fighting male lions and there was much blood splattered around.
He attempted to stand but couldn’t quite make it and so we feared he may have been fatally injured.
We decided to stay around and monitor the situation; Kalamas just lay there for many hours. As the sun climbed to its midday point kalamas managed to drag himself into the shade of our vehicle where he remained for the rest of the day. Just as we were starting to wonder what on earth to do next, with night fall approaching, Kalamas took us totally by surprise and stood straight up, shook himself gently and, rather shakily started to walk towards the safety of a well treed gully. Satisfied that we had done all we could and that Kalamas would take care of himself we left.
For the next few weeks we monitored his movements and he seemed to lay low, recovering, but you can’t keep a good lion down. Far from learning his lesson about encroaching on other male’s territories he has since been seen in the presence of other females from the Crater rim. His modus operandi seems to be to hang around on the periphery and entice the ladies away for a few days at a time. They just don’t seem to be able to get enough of him. Something about that Jon Snowesque mane of dark shaggy dark hair.
It is an interesting tactic. We ponder whether perhaps mating with pride females belonging to other males in this sneaky way may mean that when (and if) they give birth the resident male is duped into believing that Kalamas’s offspring are their own.
It is certainly a great way for Kalamas to get as many females as possible but not have the burden of looking after any of the offspring.
It is certainly an unusual story and far from the norm. It remains to be seen if Kalamas was at all successful or if the resident males were harder to fool than he imagined. We are looking out for cubs with dark manes though.
People all around the world know about the great wildebeest migration through the Mara/Serengeti ecosystem. Those of you who classify on Snapshot Serengeti are more than familiar with the thousands of wildebeest and zebra images. A few of you will have been lucky enough to witness the spectacle.
For myself working here in the greater Serengeti ecosystem I have been eagerly awaiting the event since early November and boy, I have not been disappointed.
Having spent most of my time in Southern Africa I haven’t experienced this kind of mass migration before, sure I have seen large herds of buffalo in Kruger National Park and seen the elephant migration from Botswana into Namibia through Khaudom National Park but this here in the Serengeti is something else.
Up until recently the area I work in has been a dust bowl with a few blades of grass and bare branched thorn trees. It didn’t look like it could support much and the lions were becoming thin. Only the little dik dik looked healthy. The area is also home to Maasai herders and so scrawny cows, sheep and goats filled the landscape, conflict between lions and humans was running high.
Then the rains started. Slowly at first, not the dramatic down pours you see in Nature documentaries but teasing splatters that have you willing for more. By mid-December though enough had fallen to tip the balance and the vegetation began to grow.
Shortly after the rumours began, so and so saw a large group of wildebeest to the north, then so and so was camping and heard the distant gnu-ing of wildebeest on the move. Then out of nowhere they were here. Everywhere you look there are hundreds, in fact if the bush was less dense you would soon realise there are thousands. Zebras are here too but not quite so many. Meanwhile the Maasai herders with cows have vacated the area. They avoid the wildebeest who can pass on disease that is deadly to their cows.
With the herds finally here, the lions can relax. They have gone from skin and bones to full and fat seemingly overnight. I am following one particular pride, two of its females have given birth in the last two weeks, absolutely perfect timing (of course this was down to luck rather than judgement as lion don’t have set breeding seasons). I haven’t seen the cubs yet as they are tucked very safely away in some extremely prickly dense bush which is a good thing because the place is teaming with milling wildebeest, zebra and elephant. The mums don’t have to go far for dinner, its more like a home delivery at the moment and the satellite tracking shows this well, they haven’t moved more than about 1.5km from the denning spot! These cubs have a good chance at life.
After a long day of monitoring lions, I found a quite camping spot in an area of more open bush. I took a moment to lay on the ground and close my eyes for a 10 minute nap before dragging myself up again to make tea and set up camp. As I got up, I looked out to a crowd of wildebeest about 40 meters away gently gnu-ing and all looking at me. They seemed so confused that I was there. After a short standoff they turned 900 and continued on their way towards goodness knows where.
That’s the strange thing, when you watch nature documentaries the migration looks so purposeful but when you are in the middle of it, particularly when you are not on the open plains but in thicker bush its harder to tell. Its more of a swirling pattern than a straight A to B and the herds just keep moving round and round the area looking for the freshest new grass. So sometimes you see 100’s moving south only to see another group heading North.
Wherever they are going it is hard to describe how it makes you feel to see such numbers of wild animals. For me it is hope and relief that at least somewhere in this world wildlife seems to be doing ok. For a moment you can lose yourself and imagine what this planet used to look like when things where in balance.
The wonder of nature.
Data collection is the back bone of field research work and can sound glamorous and exciting to those who are office bound but I will let you into a little secret, it can be exhausting and frustrating and unrewarding too.
Firstly, you have to remember that researchers often work in remote places and whilst this is amazing it does lead to some logistical nightmares. Take for instance my recent experience. My task was to visit 18 Ilchokuti or lion guardians from KopeLion to collect the data they had recorded during the previous month. Now they are spread out over 1300k2, in itself quite a distance but when you factor in the rough at best, non-existent at worst roads you begin to have an idea of the task. I would be lucky if it didn’t rain, that would only add to the woes. Another thing to remember is that, barring a few lucky people working for high profile organisations, most researchers have to nurse their aged vehicles along, fixing things as you go. This trip wasn’t too bad as we seemed to only suffer from door catches failing so nothing a bit of string or a Leatherman wouldn’t fix. The budgets just never seem to run to decent cars.
Just as I was about to feel smug about the lack of rain hampering our journey it dawned on me that dry conditions held their bad points too. Dust! The fine dust covering some of the landscape here is deadly. It penetrates everything and with a three-day trip planned with no opportunity for a shower, boy does it get tiring. Forget enjoying the scenery as you drive, you mostly feel as if you are in a cloud only with a yellow tinge that makes it hard to breath in place of the fluffy white.
Anyway, I can’t really complain it was a wonderful three days and meeting up with a couple of our guys in the middle of nowhere under a great baobab tree acting as our office for an hour or so was something to make you smile.
My colleague, Meritho Katei, over in the Serengeti has an even harder job under similar conditions. I was simply rendezvousing with other people, collecting and issuing data sheets and downloading GPS data. Meritho is trying to pick up on the lion monitoring for the Serengeti Lion project that has been on hold for a while.
His task is to reconnect with the prides of lions previously being followed and studied and to catch up on the family histories. New members need to be identified, files made on them and changes in pride composition noted. He is working with the Snapshot Serengeti camera trap data to see where the prides are hanging out but of course we aren’t quite up to date with the classifying so that’s not the greatest help. Instead he is relying on a lot of kilometres driving, following up on tourist sightings and tracking data and a good set of eyes to track down the prides and observe them.
So as I washed the dust out of my hair, luxuriating in a hot shower after my three day successful, mission accomplished trip, I had to reflect that poor Meritho was in for many months of hard slog catching up with those lions and with the rains coming things are about to get even harder. Good luck Meritho!
I have been a little quiet recently and for that I must apologise but my excuse is good. I have been relocating to Tanzania where I am going to be based for the next three months working with Kopelion in the Ngorongoro Conservation Area. One of Snapshot Serengeti’s partners kopelion (Korongoro People’s Lion Initiative) is a conservation organisation and research project that focuses on human-lion coexistence in the multi use landscape of Ngorongoro. I have written about the project in these blogs if you want to read more https://blog.snapshotserengeti.org/2017/02/23/meet-the-people-2/
After a two week intensive language course in nearby Moshi I have finally made it to base camp on the crater rim. The office is perched at 2300m looking down on the Crater Lake and has one of the best office views I have ever had which makes up for being stuck indoors when you would rather be in the field.
It’s not all office based thank goodness and I have already had the pleasure of three days out in the Ndutu area learning about the work the project does. Although there has been some rain it is still in the grip of the dry season here and the scenery for the most part is a dry and dusty yellow. The lions are hungrily awaiting the rains that will bring a welcome flush of green that will draw the wildebeest in vast numbers and thus plenty of prey.
Saturday was spent following up on reports of lion spoor (tracks) found near to an area that Maasai bring their cattle to drink. We turned up early morning to start tracking the spoor to see if we could figure out if the lion where still in the area; if this turns out to be the case a lion guardian or Ilchokuti will stay put in the vicinity to warn herders about the lion presence and hopefully avoid an encounter.
It was obvious that several lion had been in the area, you could see depressions in the sand where they had lay down for a bit of a nap. The tracks lead alongside a small water drainage channel and the lions had wandered down to drink in a few spots. Further along the water channel the tracks of individual lions suddenly converged on one access path down to the water. Clearly something had excited their interest. After a careful look around we descended the same route to investigate. Lying in the mud at the edge of the water we found the body of a young spotted hyena, teeth marks around its throat and the surrounding tracks told the story. Most likely the youngster was drinking when the lions ambushed it, its small size meant it didn’t stand a chance and lions probably quickly dispatched it.
Despite the fact that the lions in the area are somewhat lean at the moment they made no attempt to eat the hyena. This is normal behaviour for lions; they will not tolerate other predators in their territory and will kill them if the chance arises. There was a lack of other hyena spoor in the area so this youngster was probably on its own, why we cannot say but it became an easy target for the lions.
It is a great privilege to walk into an area that has such a story written out for you in the sand and mud. In this instant the presence of a body left little to interpret but the trackers here are capable of reading far less obvious stories and it is this skill that is helping to mitigate lion-human conflict by acting as an early warning system to the people who live side by side with lions.
Our camera-trapping efforts afford us an unparalleled view into the lives of the Serengeti ecosystems animals but the work of conservation has many aspects and I hope to bring you a good view of what is going on here over the next few months.
Photo Credit: Edward Lopatto
These incredible images of a major lion turf war have been taken by the team in the Serengeti and come with the fantastic announcement that the long running Serengeti Lion Project is back up and running.
Although the camera-trap aspect of the project has continued without pause, the main work of the Serengeti Lion project has been on hiatus for the past few years. Now, it is finally being restored and the priority is to sort out who’s who in all the study area prides. Comparing existing id’s and adding new ones is going to take some time.
Looks like these boys are trying to shake up the genes even more. Two coalitions both looking strong have clashed over ownership of prime real estate. The team report that all the males involved looked strong and healthy so this is probably not the definitive battle.
We will have more news for you soon on how the work is going as well as reports from the field, so stay tuned. Meanwhile enjoy these stunning images.
Snapshot Serengeti has been on the go since 2010 in one form or another and over those years a team of dedicated people has kept it running. The base of the effort is the 225 camera-traps that have been snapping away continuously for that whole period. Of course for that to happen there needs to be researchers and assistants on the ground physically looking after camera-traps, a scientific team who coordinate all data processing and analysis, a management team running the administration of the project and generous funders to keep everything alive and kicking.
Snapshot Serengeti could also not work without all the thousands of volunteer citizen scientist who generously give their time and energy to classifying all the millions of images, ultimately helping the researchers to answer scientific questions we hope will aid in the conservation of all that we love about the Serengeti.
Here in these blogs we have celebrated all these people but it dawned on me recently that there is one group of people that seem to have been forgotten, our moderators.
Our amazing team at Snapshot Serengeti deserve a special mention. They, like our citizen scientists are volunteers, dedicating their time and expertise for free. Contrary to what some may think they are not part of the scientific team in as far as they are not university students who do the job as part of their studies. No, they are a mixed bunch in terms of back ground and do the job plain and simply because they love the Serengeti and love the project. They spend a huge amount of time online helping other users with their classifications, guiding new users through some of the pit falls they know only too well and sharing their collective knowledge through prompt responses to questions and great information posts helping others with less experience to understand the Serengeti and its wildlife. They also have to deal with the odd, luckily very infrequent, troll which is a thankless task in diplomacy. We are privileged to have such an amazing team and I know that they are greatly appreciated by Snapshot Serengeti’s participants.
So thank you to davidbygott, maricksu and tillydad who have been with us since the beginning and welcome to parsfan and nmw. You Guy’s are the best and Snapshot Serengeti would not be the experience it is without all your help.
Of all the large birds out there on the Serengeti plains the vultures are probably the most recognisable, with their long barely feathered necks and large hooked beaks, you can’t miss them. For a lot of people they are ugly birds and their behaviour makes people shudder, all that frantic plunging of necks inside messy carcasses. Some cultures revere the vulture, instilling magical attributes to them whilst others vilify them.
But the truth is they are just birds with their own unique ecological niche, one that is absolutely essential to the health of the whole ecosystem.
Lets break it down. That neck, well the fact that the whole head and neck is either bare or only lightly feathered is a marvellous adaptation to keeping clean. Yep, not something people generally associate with vultures but they are in fact pretty clean birds. That beak, well it may look like it could kill quite efficiently but it is actually designed to grip hard and rip. Believe me I have been around rescued vultures and felt the effect, there is a lot of power there. A vulture will use its sizable feet to hold a tricky bit of carcase down when trying to tear off a chunk but the real power comes from the strong neck muscles and the powerful beak.
If you look closely at the different species of vulture you will notice that not only is there a difference in size of individual species but in the beak size. There is a hierarchy in vulture etiquette at a fresh carcase. If the dead animal is large and has a tough hide, say a buffalo, the larger species such as lappet-faced will be needed to ‘break in’. Their huge beaks and added bulk allow them to head straight for the good bits where lesser vultures would have to start with the natural openings such as the eyes, mouth and anus. Once the large vultures have broken in, the rabble takes over and fights it out for the good meat, the white-backed and Ruppell’s. Around the peripheries the hooded vultures will be waiting for the chance to snatch up bits of anatomy that are sent flying by over- zealous cousins or to dart in when the carcase looks almost clean to pick off the last bits of flesh in hard to reach places. It is not uncommon to see this species right inside the empty carcase and its slim lined beak is great at cleaning up.
Vultures search for food from the wing. Research has shown that in the Serengeti it is most often the lappet-faced that arrives first despite the numbers of this species being lower than the others. It seems they are extra vigilant or just have better eyes. The descent of this the largest African vulture draws in the other species who can be clued into the find from over 30kms away. It is quite breath taking to see many vultures on rapid descent with wings held inwards, feathers splayed it can also be noisy.
But other than cleaning up unsightly dead things how do vultures help the ecosystem? Like other organisms that consume dead animal matter vultures are immune to a lot of deadly diseases. Their stomachs are filled with very acidic digestive juices which can destroy diseases such as anthrax, cholera and rabies. Most scavengers would not be immune to these types of disease and what’s more, diseases such as anthrax can lay dormant for decades posing an ongoing risk. Of course vultures alone can’t keep the Serengeti disease free but with their ability to fly over 100km a day they do a darn good job of patrolling the plains and keeping them clean.
But outside of protected areas vultures are in decline. In places like South Africa there has always been a value placed on vultures with Sangoma or witchdoctors prescribing vulture heads for people needing to see into the future to answer big life questions. Of course this has modernised, now people purchase vulture heads to see the winning lottery numbers. Vultures are also targeted by poaching gangs who, in an effort not to have their poaching camps discovered, place poison bait to attract and kill the vultures. India, several years ago nearly lost ALL its Gyps vultures. 95% where thought to have died and the main cause discovered to be adverse effects from a drug called diclofenac that was widely given to domestic stock. The drug has since been banned in India but its use as a veterinary drug in Africa is rising causing major concern amongst conservationists. Loss of habitat is also an issue.
We are lucky that the Serengeti is an ecosystem functioning normally with all its facets. You may be lucky to spot, lappet-faced, white-headed, white-backed, Ruppell’s griffon, hooded and Egyptian vultures in our camera trap images. It is quite remarkable to find this type of balance these days and we thank the vultures for their ongoing services.
Snapshot Serengeti is in the limelight again!
A new paper titled “No respect for apex carnivores: Distribution and activity patterns of honey badgers in the Serengeti” has been published by a team from the University of Wisconsin and University of Ljubljana using the Snapshot Serengeti data classified by our citizen scientists.
Honey badgers are surprisingly understudied. Although extremely charismatic the fact that they have large territories, up to 541km2 for an adult male in the Kalahari, and no clear habitat preferences makes it hard to predict where to find and study them.
The Snapshot Serengeti data of course is a dream come true to many researchers enabling them to ask scientific questions without having to wait potentially years to collect data themselves.The team took advantage of the open access data, courtesy of Snapshot Serengeti to look at what they could learn about honey badgers and how they live alongside other predators. Ferocious as they are honey badgers are killed by lion, hyena and leopard and so the team wanted to know whether they avoided areas where these large carnivores were active.
Well it seems that despite ending up as an occasional victim the honey badger is quite happy living alongside the larger carnivores, at least in the Serengeti anyway according to the authors. It appears as if the honey badger actively seeks out the same habitats as the large carnivores. The authors modelled a variety of different explanatory scenarios to see which would be the best fit to explain honey badger distribution across the Serengeti study area. Included where variables such as habitat preference, water availability, cover availability, lion abundance, and leopard abundance. Their best models showed that the presence of all three large carnivores coincided with the presence of honey badgers and that there was also a positive correlation temporally between leopard, hyena and honey badger showing that they use the same habitat at the same time.
It’s interesting stuff. The authors do point out that although the data set was huge there was actually very few incidence of honey badger over the 3 year period covered by their work and so their sample size was small. It does however show just how valuable the data collected by Snapshot Serengeti and the other Snapshot Safari projects can be, if nothing else to give scientists a relatively inexpensive way to explore questions before undertaking more specific research work themselves.
You can read the paper here, although it is not open access unfortunately: https://www.sciencedirect.com/science/article/pii/S1616504717302720
These two images illustrate the point nicely, you can clearly see the same camera has captured honey badger and spotted hyena with in 13 days of each other. Interestingly both in day light.
There is one little animal in Europe that is loved by all, immortalised in children’s books, welcomed by gardeners and flagship of the realisation that our mammal populations may be declining due to our very own actions. Over in the States although not native these same creatures are kept as pets (that’s another story and not such a good one). Although it’s hardly a creature to cuddle or pet they are thought of as very cute, something to do with that snuffling around your garden in dry leaves and, getting all snoozy, having to sleep away the winter in a cosy corner. Yes, I write of the hedgehog.
Now, why, I hear you ask is she writing about a European mammal on a blog about the Serengeti? Well it may come as a surprise to some to find out that there are in fact 18 species of spiny hedgehog found across Europe, Asia and Africa. Six species are present in Africa. The North African hedgehog (Atelerix algirus) extends its range across the Mediterranean belt of North Africa and Iberian Peninsula as well as the Balearic and Canary islands. The long-eared hedgehog (Hemiechinus auritus) touches into Libya and Egypt and the desert hedgehog (Paraechinus aethiopicus) a true Saharan specialist. The last two species are also found through Arabia and Asia. The remaining three species are solely found in Africa; the southern African hedgehog (Atelerix frontalis), Somali hedgehog (Atelerix sclateri) and the four-toed hedgehog (Atelerix albiventris).
The four-toed hedgehog is found across West, Central and East Africa as far as the Zambezi River and so is the species that is found in the Serengeti. As far as I know we have never had a capture event from our camera traps of this enigmatic little creature but please let me know if someone has come across one.
In European culture where woodlands are seen as wildlife havens most people would associate the hedgehog with forests or at the very least the edges of forests and hedgerows where indeed this species is well at home but its African cousins are rather different in their habitat preferences. The four-toed prefers the drier regions and is partial to grasslands and according to The Handbook of the Mammals of the World vol 8 it especially likes overgrazed regions with dense ungulate populations. All that trampled grass and dung supports plenty of insects for it to munch. Well that sounds just like the Serengeti to me!
Although insects make up a large part of the diet they are omnivorous and will eat fungi and fruits as well as other plant matter. A little known fact, they will also kill small vertebrates like frogs, lizards and mice and are known to take on even venomous snakes. Their spines are great protection from the bite of an angry snake.
As formidable as those spines are it is the ability to curl up into a ball that is their true defence. Now they don’t just tuck their heads in and hope for the best, the skin that the spines are attached to is very flexible and is edged by a strong band like muscle that is attached to the forehead. When it is contracted it acts like a drawstring on a bag that holds in the body, head and limbs with the spines closing up the seal. It works remarkably well but inevitably certain animals have learned how to unzip the bag, honey badgers and eagle-owls are amongst those experts in the Serengeti.
As a family hedgehogs are known to perform a bizarre act known as self-anointing. The hedgehog will chew and lick a substance until it has a mouth full of saliva and then with acrobatic contortions it will plaster this saliva all over its body, apparently they do this in a frenzied manor and it is quite hard to distract them once in the process. What is unclear is why they do it. There is no obvious reason. Studies have shown every age group performing self-anointing including nestlings whose eyes have not even opened. They only thing that stands out is that strong smells and tastes seem to trigger the behaviour such as dog or fox urine and a whole host of human made items such as leather, polish or nylon stockings. I am not even going to ask what the scientific research question was when they discovered those three!
So from Mrs Tiggy-Winkle (Beatrix Potter) to sonic the hedgehog we may all be very familiar with this loveable creature but perhaps we don’t know all there is to know. Keep your eyes out for the first Snapshot Serengeti camera-trapping.
Image: Author Jkasui, Wikimedia, https://creativecommons.org/licenses/by-sa/3.0/deed.en