Note: Meredith wrote this blog post, but is having internet problems in Africa, so I am posting it on her behalf.
Pole sana on the lack of recent field updates – it’s been a busy week or two and I’ve traveled halfway across Africa in the meanwhile! Sad to say, I’ve left Serengeti behind for now. I was able to set up almost all of the replacement cameras I brought down with me and completed three new rounds for my playback experiments. I then took a few days off and spent my birthday traveling around in Ethiopia, soaking in some history and culture (and eating really excellent food!). It’s nice to have a break from constant science every once in a while. I went around what is known as the “Northern Circuit” and visited the four historic cities of Gondar, Lalibella, Aksum, and Bahir Dar. I got to visit island monasteries, rock-hewn churches, the palace of the Queen of Sheba, and even made a trip to the church purported to be where the True Ark of the Covenant is kept! Have to say, the trip made me feel very “Indiana Jones”, right up until the point where I got ill from drinking the water…
After a week in Ethiopia, I flew down to Johannesburg, South Africa, to meet up with Craig and another graduate student we’re working with, Natalia. Natalia is interested in cognition and has been testing the creative problem solving and impulse control of different kinds of carnivores. We’ve spent the last few days at a reserve outside of Pretoria called Dinokeng, run by Kevin “the Lion Whisperer” Richardson. Kevin maintains a park with dozens of semi-captive lions, leopards, and hyenas which Natalia can work with for her intelligence experiments. While Natalia has been busy with her research, I’ve been putting together a rig that will enable me to examine herbivore responses to four predator species: cheetah, wild dog, lion, and hyena. Two of these predators (lion and cheetah) hunt by sneaking up on their prey, whereas the others (wild dog and hyena) rely on endurance to run prey down. I’m looking to see whether prey respond to each species of predator differently, or whether there are consistent differences in anti-predatory response by predator hunting type. I’ll be simulating predator encounters because it would be incredibly difficult to observe a sufficient number of actual encounters in the wild. As soon as I find a good internet connection, I’ll post pictures of just exactly how I plan on doing this — it’s pretty great, and I don’t want to ruin the surprise!
Just this morning, the three of us packed up all of our gear and took a small plane out of Pretoria up to South Africa’s Northern Cape province. We’ll be spending the next three to four weeks up here in the Kalahari conducting our experiments. In addition to looking at anti-predator responses, I’ll be helping to set up a NEW camera trap grid (perhaps Snapshot Serengeti will be joined by Kalahari Cameras sometime in the near future…?). Now that we’re back in action, more updates soon!
By now, you have probably heard of this silly (but hilarious) video that’s been making the rounds of the interwebs lately:
It’s pretty catchy, not just because it’s ridiculous, but because it’s a pretty good question. I mean, how many of you out there have actually ever heard a fox?
The sounds of the bush are one of the many, many things I miss being back here in civilization. From my slightly sketchy corner of Saint Paul, I hear fire crackers and unmuffled engines roaring. Occasionally I get chattered at by an angry squirrel in the back yard. But that’s about it. Nothing like the otherworldly chorus of the Serengeti savanna that Lucy so beautifully described.
The sounds really are incredible and often unbelievable, and I thought I’d share some of them with you. I couldn’t actually figure out how to upload audio files, so I scoured Youtube for the best audio clips I could find and embedded them as videos here.
Zebras: Nothing like horses, these stripy equids sound something like a braying donkey crossed with a barking dog.
Wildebeest: I believe that somewhere in the annals of Zooniverse blogs, there is an audio or video clip of me doing a wildebeest impression. This is better.
Hyenas: Despite being hell-bent on devouring all of my camera traps, these guys are pretty cool. They have a rather large repertoire of very…unusual…vocalizations that are used to communicate in a number of situations. The whoop, which you hear at 0:05 and 0:55, is a long-distance call often used to rally scattered clan members. The laugh at 2:33 is a sign of nervousness or submission. Similar to human voices, hyena vocalizations are individually recognizable to clan-mates. To learn more about hyena vocalizations, check out this blog by hyena expert and director of Masai Mara’s long-term hyena project, Kay Holekamp.
Lions: And finally, for the best, non-hollywood lion roar, scroll about halfway down through our lion research center’s page. This is what they really sound like.
I’ll take any of these noises over the sounds of the city any day.