Elephant behavior has long endeared the public. From complex social structures to tool use, hearing stories about behavior not only teaches about fantastic ecological adaptations, it shows a window into elephant’s lives that we can understand and relate to on a personal level. Showcasing behaviors has often been used to help elephant conservation. However, behaviors are sometimes disconnected from how managers actually conserve elephant populations. In a new study, we examine elephant space use behavior in the hope that it can directly inform management practices.
Asian elephants were once widely distributed in India, but are now restricted to four widely separated regions: the north-western (NW), north-eastern (NE), east-central (ECI), and the southern India (SI). When you undertake the population genetics study of a wildlife species, the quality of the result is related to the design of the field sampling protocol. This is to ensure that the sampling is extensive covering different areas to avoid over-sampling of more accessible populations. When we started our population genetics study of the Asian elephant (Elephas maximus L.), we planned to collect fresh elephant dung samples from across the beats and various ranges of protected forests in India. This of course often involved traversing through inhospitable and difficult terrain with a forest staff in attendance. The first problem were the elephants themselves. To get fresh dung, one had to go close to elephants for collecting samples. This often did not go down too well with some individuals who responded to the invasion by a determined charge. We were fortunate not to have suffered any mishaps and ultimately it worked out well and we were able to collate an impressive database of elephant dung samples.
In partnership with Bring The Elephant Home in Thailand, we’re excited to share this picture diary from the field, by Brooke Friswold, who is a PhD student at King Mongkut University of Technology Thonburi!
Written by Brooke Friswold
It has been another busy month in Ruam Thai Village! We have erected ten camera traps on pineapple farms with the consent of local farmers in areas with reported high frequency of visitation and five on lemongrass farmland rented by Bring the Elephant Home.
In speaking with the farmers they were very excited and enthusiastic to share their experience: some of the farmers say that the elephants are coming most nights to their land, while others say it can be weekly or also come in waves, with times of high visitation followed by lapses in appearance. The farmers were very eager and interested to share and discuss where the best placement would be for the camera traps, the trails the elephants use to enter, and the recent visitations they had.
We’re partnering with Bring The Elephant Home in Thailand to trial the potential of alternative crops to support farmers living with elephants. We’re excited to bring the first news from the field, by Brooke Friswold, who is a PhD student at King Mongkut University of Technology Thonburi!
by Brooke Friswold
The team in Thailand has been busy over the last two months – especially while director and founder of Bring the Elephant Home (BTEH) Antoinette van de Water has been in country! With the start of data collection for a subset of five BTEH rented lemongrass plots and ten community-owned pineapple plots on the horizon, equipment and methodology trialing has begun. Data collection via camera trapping is set to begin in mid-May to record baseline elephant behavior in control and experimental plots for the HECTAARE project and for Brooke Friswold’s PhD research with King Mongkut’s University of Technology Thonburi (KMUTT) in partnership with BTEH and HECTAARE.
The floating object task is a puzzle that comparative cognition researchers present to animals (including humans) to study the evolution of cognitive abilities, like cause and effect understanding and the ability to use water as a tool. To solve the task and retrieve the floating reward inside, you must add water to a tube to raise the water level and reach the reward. Some primates, like orangutans have been able to solve the task by carrying water in their mouths from a drinker and spitting it into the tube to reach a peanut.
My colleague, Dr. Sarah Benson-Amram, and I presented this puzzle to elephants for the first time (Barrett & Benson-Amram, 2020). We wanted to see if elephants’ unique trunk morphology would make them well-equipped for the floating object task. Since they spray water for bathing, and hold water in their trunk as a vessel for bringing it to their mouth, we predicted that they would be up for the task. We collaborated with the National Zoo and the Oklahoma City Zoo to carry out this research. We used a tube filled about 1/3 of the way with water, baited with a floating marshmallow. As is often the case with animal research, things did not go as we expected.
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.
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 →
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 →