By Lena Coker
These farmers in Sri Lanka are at the interface of forest and agriculture, where most incursions by elephants occur.
In Sherpur, rural Bangladesh, as the human population increases, so does the demand for the land and natural resources that the elephants need to survive. This is a story of human-animal conflict that is repeated around the globe with many species and rural communities as they struggle to find the balance for coexistence. Continue reading
Or why we shouldn’t take those large odd-looking animals for granted.
Step into any nursery or play room, take a quick walk down the isles of your local bookstore or library. Or just look at the clothing and toys we surround children with. They are full of images of iconic animals – giraffes, rhinoceros, hippos, lions, elephants…
We use these animals to teach the alphabet, and cherish them as beloved characters in our story books. They adorn everything from birthday cards to blankets.
What would the world be like without them? Continue reading
The living elephants – Asian elephant, African forest elephant and African savannah elephant.
Guest post by Michael Pardo
Ask most people what sound an elephant makes and they are likely to think of a trumpet. In reality though, elephants produce an incredible variety of different vocalizations. The most common call is a deep, pulsating rumble, so low-pitched that human observers sometimes feel it more than hear it. Elephants also roar—powerful, bellowing sounds that carry across the landscape. And sometimes, they give combination calls, in which one or two rumbles and roars are stitched together with no pause for breath.
I visited Udawalawe in 2014 to work with the Udawalawe Elephant Research Project, and was especially fascinated by these combination calls. Combining meaningful units into sequences with an additional meaning is a key component of human language, but there are relatively few examples of this phenomenon in other species. Listening to the Udawalawe elephants, I was struck by the fact that they nearly always produced combination calls in the same order: a single roar followed by a single rumble. Why was this? Could it be analogous to grammatical rules in human language? Or could it be as simple as an anatomical constraint that made it difficult for the elephants to produce a rumble before a roar? Continue reading
A lone male at the reservoir was all we saw…
Back in 2007, 2008 and 2009 UWERP devoted intensive effort to surveying all parts of the park in order to make an estimate of the elephant population. Ten years on, it is time to re-do this exercise. What that means is that for a few specific months each year, we have to try and cover the park more evenly in space and time than we normally do when studying behavior. The trouble was, the elephants were missing. For much of the preceding weeks elephants had been scarce, so much so that guests were leaving annoyed. This was not unusual – I remembered that during the hottest and driest months, elephants usually stayed in the shade until late afternoon even back then. I supposed they were resting and conserving their energy until nightfall. But we could never know for sure. Continue reading
An elephant family rests under a tree in the hot midday heat. Situations like this were perfect for the playback experiments.
In October 2007 Lucy King and colleagues first made a splash by reporting that African elephants seemed to be rather put off by bees. I was still in Sri Lanka during my big “data collection year” as a graduate student, trying to figure out the social relationships among Asian elephants and recording vocalizations whenever I got a chance. Lucy’s first paper was a curiosity, but then three years later she followed it up with the even more intriguing finding that African elephants even produce alarm calls specific to bees. This got the attention of my advisor at Penn, Dorothy Cheney, who having expended considerable time thinking about such things as monkey alarm calls, dropped me a one-liner: “Have you seen this?” Continue reading
A young female named Right Hole puts her trunk over the head and back of another female of similar age with the ID . The two are from different social groups, though they know each other.
Elephants are commonly thought to live in matriarchal societies which rely on the strong leadership and wisdom of elders, with strong age-based dominance hierarchies. Our new study in the journal Behavioral Ecology overturns this view, finding that in fact Asian elephants, unlike African savannah elephants (Loxodonta africana
), do not exhibit clear dominance hierarchies or matriarchal “leadership” . Continue reading
Guest post by Hannah Mumby, Myanmar Elephant Project / University of Sheffield
Elephant calves at a logging camp in Myanmar. Image courtesy of Hannah Mumby.
There are a great many reasons to study elephants; they’re endangered, highly social, quite frankly huge and hold a unique and central place in many cultures. They can also be very strong, sometimes dangerous and slow to do what you want. But that’s not enough to stop me from working on them! One of my interests is actually their life cycles. In the past I’ve studied humans and non-human primates and the fact that elephants evolved long lives, almost on a par with our own, but on a separate evolutionary trajectory was fascinating to me. Elephants also usually only have one calf at a time and each calf is dependent on its mother for many years. These characteristics allow us to test a lot of ideas underpinning theories of life history and ageing, including ones that have been primarily designed with humans in mind.
So why is this interesting? Continue reading
Two tusked bulls fighting. Photo by Karpagam Chelliah.
Bull Asian elephants come in two forms: tusk, and tuskless (this is termed dimorphism). It’s long been thought that tusks must confer an advantage in competitions between males for dominance and mating rights. However a recent study by Karpagam Chelliah and Raman Sukumar of elephants at Kaziranga National Park, India, puts a wrinkle on this common story. Continue reading
Guest post by Dr. Lucy King – Elephants & Bees Project, Save The Elephants
Apis Cerana, Photo by K. Raveendran
I’ve just returned home to Kenya after a fascinating month working with Dr Shermin de Silva and her team at the Uda Walawe Elephant Research Project in Sri Lanka. There have been several productive links between Dr de Silva’s project and ours at Save the Elephants over the years and key to the collaboration has been the ability to compare elephant population ecology between Kenyan and Sri Lankan elephants. However, I went to work in Uda Walawe National Park for an entirely different reason – bees! Continue reading