We are finally in Peru for my third expedition. I visited alone previously to explore the diversity of chrysomelid leaf beetles and their host plants. During the first trip in 2007, I discovered how wonderful a field station can be, as opposed to expeditions involving daily travel from one campsite to another, hauling food, water, supplies, and, for me, tubs of live baby insects that I am trying to rear to adults before I run out of their food plant from the last site. (Baby insect systematics is so primitive that without the adult, I have no hope of identifying the species.)
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Free State Brewing Company, 633 Massachusetts St. What can trilobites tell us about extinction? Bruce Lieberman, curator of invertebrate paleontology, will introduce these more than 250-million-year-old, hard-shelled creatures that once dominated Earth's ancient seas. Discussion will branch from there to how major astronomical events might have played a part in the extinction of trilobites, and what that tells us about other mass extinctions. Doors open at 6:30 p.m.
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The last week has been a bit hairier than normal. Joined by another Colombian water beetle student, we flew down to Puerto Ayacucho in southern Venezuela to scope out some new sites. No need for details at this point but things did not go quite as planned. The fact that an American and a Colombian were traveling together along the boarder with Colombia the day after Venezuela shut down all relations with Colombia because of perceived US military aggression (likely) played a role, if you are curious.
From San Cristobal: The last week has been a whirlwind of different habitat types (as normal). We zipped across from Maracaibo to Coro in Falcon state where we stayed for a few days to work the region. This part of Venezuela is mostly dry semi-desert. Lots of cactus. Among the more striking feature is a dune region which is large enough to make you think you were in lost somewhere in the Sahara. Of course, there are oases of sorts that were full of beetles.
The Gyrinidae are a family of charismatic aquatic Coleoptera commonly known as whirligig beetles, for their gyrating swimming style. Gyrinids are peculiar for having completely divided eyes giving them the appearance of having four eyes: two that peer above the water and two that peer below the water. They swim about on the surface tension of the water kicking with two pairs of paddle-like legs.
We arrived safely in Maracaibo yesterday. Today is for errands and setting up other logistical details for the trip. Stay tuned for an actual update...