In order to get more information about the forest here at the Sikundur research station in North Sumatra, I’ve set up four camera traps, which I’m using to get a better look at the wildlife around the site.
The traps have been so successful in such a short time period that together with another graduate student, John Abernethy of Liverpool John Moores University, and Matthew Nowak of the Sumatran Orangutan Conservation Programme, we’ve decided to launch a crowdfunding campaign over at Experiment, which you can support here. Hopefully the campaign will be a success, and periodically I’ll post the best of my pictures so you can see how unbelievable animal life in the forest is in Sumatra!
Camera traps are great, because a lot of animals will run from humans or are nocturnal, meaning that we’d never get to see them otherwise. I’m using the idiot proof but slightly cumbersome Primos TruthCam and the more complicated but compact Bushnell TrophyCam, which I attach to trees using locks to prevent them from being stolen. In the daytime the cameras shoot bursts of three color photos and at night they produce an infrared flash allowing for night vision without scaring the animals. Typically, with eight-rechargeable-AA or four-D batteries the units can be left for around a month, though I’ve been switching the batteries and memory cards every three weeks or to be on the safe side.
So, what have I got so far? A lot is the simple answer!
To start with, I have a ridiculous number of pictures of great argus pheasants, since the sites of their mating dances make ideal locations for my camera traps. The males of this odd looking bird will wander around cleaning their chosen spot while making a very distinctive two-tone “Woo-woo” sound to try and attract a female. When a female arrives the male will puff up its wings in a display showing off the hundreds of “eyes” on its beautiful plumage.
As for mammals, the cameras are a big draw for groups of terrestrial pig-tailed macaques, which love to play with them and strike hilarious poses, much to the delight of my field assistants, who I think might enjoy looking at the pictures more than I do!
On one occasion, I’ve also captured pics of a few individuals of another primate species, the endemic Thomas’s leaf monkey, also known as Thomas’s langur, which was cool, since they don’t spend much time on the ground. However, as of yet, I haven’t photographed any orangutans, which fits in with the idea that the threat of predation by tigers keeps the Sumatran species largely arboreal.
At night, the pheasant clearings seem to attract Sumatran porcupines, which lumber around in twos and threes. Their appearance was a big shock, since I didn’t know porcupines live in the jungle!
The pheasant clearings are all on our trail system, which is commonly used by jungle pigs, along with their incredibly adorable, though extremely well camouflaged piglets!
The big stars in Sumatra that everyone wants to see are the elusive and rare cat species, including tigers, and the bigger mammals like sun bears, rhinos (not present at Sikundur, sadly) and forest elephants.
I haven’t been lucky enough to get any tigers yet, but I’m cautiously optimistic that by moving the cameras away from human habitation they’ll show up sooner or later! I did, however, photograph beautiful clouded leopards on two occasions, although one images is heavily over-exposed, so I can’t tell if it’s the same individual.
I’ve also encountered just the one sun bear to date, though again I’m hopeful that when I place the cameras away from the village, they’ll appear more regularly.
The best photos I’ve taken so far came from a group of forest elephants that spent three hours in front of my camera before smashing it! I’m hopeful the camera can be salvaged, however, and the photos are so good that I’m totally fine with junking the camera if not!
Based on the success of just four camera traps in these first few months, we definitely want to set up a larger system, using rigorous methods to accurately measure the densities and locations of the amazing taxa found in this incredible forest! These pictures, the best of over 2,500 the cameras have taken in less than 100 trap nights, highlight just how diverse our small chunk of Gunung Leuser National Park is (imagine what the areas without anthropogenic disturbance must be like!) and how vital it is that we fight to conserve every last patch of forest that remains.
To support James’ crowdfunding campaign, visit his page at Experiment.com.