A tepui rises from the Gran Sabana region of Venezuela. Photo by Andrew Short.
And we’re off! My postdoc Devin Bloom and I just landed in Paramaribo, the capital city of Suriname. From here, we’ll make final preparations for our ultimate destination, Tafelberg (“table mountain” in Dutch). Although not the tallest peak in Suriname (that honor goes to the nearby Juliana Top), it is special because it is the only tepui in the country and the eastern most on the continent.
Tepuis are fortress-like sandstone mesas that are found in this region of South America. Formed largely by erosion of the surrounding sediments rather than uplift or volcanism, these ancient sentries tower over the surrounding jungles, with some reaching 3000 meters in elevation. Roraima, perhaps the most famous tepui, inspired the “The Lost World” by Arthur Conan Doyle and the landscapes in the movie “Up”. The world’s tallest waterfall, Angel Falls, plunges off Ayuan tepui in Venezeula. Although dinosaurs have yet to be found on their summits, tepuis are host to a spectacular array of endemic plants and animals. Many of these may be ancient relicts, representing real examples of Doyle’s undiscovered world.
Compared to more notable tepuis, Tafelberg is small and lonely. It rises to a relatively modest 1000 meters, and is set hundreds of kilometers east of its nearest geological kin. This has led to questions about whether Tafelberg’s flora and fauna share any link with other tepuis, and if so, to what extent?
Soon, the final members of our group from the New York Botanical Garden will arrive, and on August 12, our team will be dropped off at a remote grassy airstrip near the mountain’s base. From there, we will be lifted to the summit of Tafelberg by helicopter to conduct our survey. Until then, we will be finalizing the logistical and supplying details, as well as attending an international congress on the biodiversity of the Guiana Shield.
The sun rises over the Central Suriname Nature Reserve, as seen from the summit of Voltzberg. Photo by Andrew Short.
Andrew Short is a National Geographic Grantee and assistant professor of Ecology & Evolutionary Biology at the University of Kansas. An entomologist by training and at heart, Short is currently in Suriname, South America searching for aquatic insects to study patterns of freshwater biodiversity that will inform both science and conservation.
Having climbed up through a layer of misting clouds, we reached the summit of Voltzberg just in time to see the day break over the surrounding rainforest. Sitting at the northern edge of the Central Suriname Nature Reserve (CSNR), Voltzberg is one of many imposing granite domes that pepper this ancient South American landscape. A massive swath of tropical wilderness twice the size of my home state of Delaware, the CSNR is almost entirely unpopulated and only accessible by canoe and bushplane.
While taking in the vastness of the landscape was a welcome break from our fieldwork routine that morning last July, my students and I had work to do: documenting the aquatic insects that live in the streams, waterfalls, and forest pools that surrounded us. Our research here, done in collaboration with the National Zoological Collection of Suriname, has uncovered dozens of new species and we’re only just gotten started. These inventories help us approach a number of bigger questions: How similar is this patch of forest to one 50 miles away? What are the ecological limits of these species, and what would happen if the environment changed? Can these insects help us monitor water quality?
We’re making final preparations for our return to Suriname (and CSNR) next week. This time, our target is more ambitious: Tafelberg — an isolated table mountain in the center of the reserve. Stay tuned for updates as our expedition gets underway!
Last night was our final night at the research station at the base of Voltzberg. After breakfast, we packed our hammocks and made a pile of the food and gear the porters were going to carry. The porters arrived, packed, and started back to the boat and we followed about 15 minutes later. The whole hike took us a little under two hours which beat our time on the hike in by about thirty minutes. My sweat-soaked shirt felt like I had just taken it out of the washing machine and I couldn’t wait until we got back to Foengoe Island where a cold shower was calling my name.
Unfortunately, a shower would have to wait a while longer. Upon our arrival, the manager informed us that the water pump had broken, so we would have to get any water we needed from the river. I resigned myself to the fact there was no running water, so I hopped into the river for a much needed bath. It was glorious to scrub off three days’ worth of sweat and I came out feeling much better.
Sofia Muñoz (MA student, mentor Chaboo), is one of 20 students in the U.S. selected to participate (fully funded) in a NSF-funded Thematic Collections Network Short Course on Biological Specimen Informatics, at the Richard Gilder Graduate School, American Museum of Natural History, New York, in May 2013.
Sofia, Marianna Simões, and Mabel Alvarado presented their research at last weekend's annual meeting of the Kansas Entomological Society, Pittsburg, KS. Caroline and Matt Gimmel also presented a poster, "Beetle families of Peru."
Mabel (co-mentored by Michael Engel) and Victor Baruch Arroyo-Peña (mentor Jorge Soberón ) won third place for their poster, "Problems in the usage of historical data: experiences based on modeling data of the genus Alophophion Cushman, 1947 (Hymenoptera: Ichneumonidae: Ophioninae)."
Timo Förster, an undergraduate from the University of Greiswald, Germany, is conducting a research internship with me, funded by the German Academic Exchange Service (DAAD). We developed a project to study the insect communities that develop in small pools of water that plants retain (phytotelmata). Pitcher plants may be the most familiar and best studied phytotelmata communities. These pools may form in flowers, seeds, leaves, and damaged stems. Their communities tend to be dominated by insects, especially beetles. In 2010, KU undergraduates Joe, Riley and Tom studied such communities in two Zingiberales plants at the Los Amigos Biological Station, Peru; our manuscript is going through the review process for publication. Zingiberales are gorgeous plants and make our fieldwork more special.
I conducted fieldwork with Timo in Peru during Oct 2012 and he has stayed in the field collecting data and specimens on these unusual insect-plant interactions. Such a lengthy field stay and enormous specimen collections will require years of study and will yield many manuscripts. I am still immersed in the fieldwork because of Timo’s weekly emails reporting on our traps, which plants are flowering, and what surprises he uncovers. His most recent post does not concern insects, but it is quite thrilling:
“We were walking on trail 8 today (Adrian, Nicole, another researcher, and me). Suddenly Adrian, who was walking in the front, made signs to hide behind a tree. Suddenly a big group (perhaps 20-30 animals) of white-lipped peccaries came across and we were directly in the middle of their group, as we were hiding behind a tree. About 10 seconds later, we saw a huge yellow cat walking silently only about 5 meters behind the peccaries. The Jaguar was stalking them and was walking so close to us that we could almost touch it (less than 2 meters distance). We saw the cat for about 15 seconds, until it saw us and got scared and fled. All of the time, I was absolutely stunned. After that encounter we made a big party on the mountain. That was my first jaguar and it was one of the most impressive things I saw in the wild so far.”
After many months in the field, I can’t imagine a more precious birthday gift for Timo, turning 23 today! We are fortunate to access such high quality habitat at Villa Carmen. I hope my June 2013 field course with KU students will return with equally precious sightings and memories.
Luis Figueroa in our visitor’s cubicle
In my academic calendar, January is usually preoccupied with completing annual evaluations and submitting reports, and grant applications to the U.S. National Science Foundation (NSF). Our Entomology Division was uncommonly busy with several scientists travelling here to study parts of our Hymenoptera, Hemiptera, and Coleoptera collections.
Mr. Luis Figueroa, a colleague from San Marcos University Museum, Lima, Peru spent a month here studying the scarab beetles that I and my team have collected over several years from Peru. Luis identified many specimens and even found a potentially new species that he and collaborators will study further and perhaps describe as new to science. It is exciting when collections for my own research can benefit other colleagues’ work!
Dr. Paul Tinerella of the University of Minnesota-St. Paul (http://www.nepomorpha.org/), his doctoral student Gretchen Wilbrandt, and one undergraduate REU-supported researcher, Ms. Jamee Snyder (Fig. 1) visited us to examine our famous Hemiptera (true bugs) collection. Even though we have no active Hemiptera researcher on staff now and this part of the collection is not growing as fast as other taxa, our collection remains a valuable resource to the international community. We are one of 34 museums collaborating in the NSF-supported project http://tcn.amnh.org/, led by Dr. Toby Schuh at the American Museum of Natural History, to digitize and recurate North American Hemiptera specimens and make data available online.
Two M.Sc. students in the Chaboo lab presented posters on their research at the annual meeting of the the Entomological Society of America, Knoxville, TN, 11-14 November 2012. The ESA is the largest professional entomological organization in the world, and the annual meeting is a great place to contact other entomologists. Mabel and Sofia were able to get feedback and ideas to improve their research, while catching up many interesting talks in beetle systematics, genomics, climate change, and fieldwork.
SEP attendees viewing the Gimmel & Chaboo poster
Luis Figueroa at the SEP congress
Members of the Chaboo lab made presentations at the 54th Peruvian Congress of Entomology, organized by the Peruvian Entomological Society (SEP), during November 5-8, 2012, in Cusco, Peru. Graduate student Mabel Alvarado presented two posters, “Diversidad del genero Ophion (Hymenoptera: Ichneumonidae: Ophioninae) en la Zona Reservada Udima, Cajamarca, Perú” [co-author Luis A. Figueroa, Diversity of the genus Ophion (Hymenoptera: Ichneumonidae: Ophioninae) in Udima Reserve, Cajamarca, Peru] and “Tres nuevas especies del genero Ateleute Förster (Hymenoptera, Ichneumonidae, Cryptinae) con claves para las especies del Nuevo Mundo” [Three new species of genus Ateleute Förster (Hymenoptera, Ichneumonidae, Cryptinae) with a key to the New World species]. Drs. Matthew Gimmel and Caroline Chaboo also presented the poster, “Las familias de Coleópteros de Perú” [Beetle families of Peru]. We thank Luis for his great help in so many ways with our field research in Peru and in getting our posters to the meeting.
When a chief of police contacts you about insects and dead bodies, a good entomologist hopes that her skills are badly needed to solve the crime of the century…that the insects found on the body are clues to the time and place of death. One of the critical roles of insects in any ecosystem is to break down dead bodies, and this is what they naturally do with any carcass.