Tuesday, March 10, 2015

7:30 PM

The reintroduction of the American burying beetle to Nantucket Island

MCZ 101, 26 Oxford Street, Harvard University

Andrew Mckenna-Foster
Director of Natural Science
Maria Mitchell Association

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The federally endangered American burying beetle, Nicrophorus americanus (Coleoptera: Silphidae) is the largest of North America’s carrion beetles. Its historical range covered 35 states in the eastern temperate areas of North America, but today, populations remain in only eight states and it is possibly one of the rarest beetle species in the United States. The range of ABBs on the east coast is particularly limited, only surviving naturally on Block Island, RI. In 1994, 48 N. americanus were released on Nantucket Island, MA in a large collaborative effort to build a second east coast population. As we observed how this new population was settling in on the island, we have adapted our monitoring and reintroduction methodology to efficiently boost the number of wild beetles. After a peak in capture numbers in 2011 (212 beetles), we entered a phase of testing whether the species can survive on the island with little to no assistance. I will talk about what we have learned concerning dispersal, winter survival, reproduction, and ultimately, the probable fate of this population.

The talk is free and open to the public. The meeting is readily accessible via public transportation. Parking is available in the Oxford Street Garage with advance arrangement, as described here, or (usually but not always) at spaces on nearby streets. Everyone is also welcome to join us for dinner before the talk (beginning at 6:00 PM) at Cambridge Common restaurant, on 1667 Massachusetts Ave.

CEC meetings are held the second Tuesday of the month from October through May. The evening schedule typically includes an informal dinner (6:00 to 7:15 PM) followed by our formal meeting (7:30 – 9:00 PM). The latter begins with club business and is followed by a 50 minute entomology related presentation. Membership is open to amateur and professional entomologists.

Tuesday, February 10, 2015

7:30 PM

Genomic insights into multi-species interactions: Molecular evolution, form, and function

MCZ 101, 26 Oxford Street, Harvard University

Tanya Renner
University of Arizona

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From carnivorous plant enzymes that digest insect prey, to bombardier beetles that have obligate associations with ants and spray defensive compounds up to 100 degrees C, evolution has played an integral role in the co-option of preexisting genes, driving the emergence of new functions that define the traits we see today. We will explore these processes in the context of natural history, examining the evolution of a plant lineage’s ability to digest insect exoskeletons, the chemosensory system in paussine ant nest beetles, and emerging data on the enzyme precursors that are responsible for the bombardier beetle’s explosive blast. The goal of my research is to examine the patterns and processes of evolution and functional diversification at the molecular level. I am particularly interested in how multi-species interactions shape biodiversity at the microevolutionary scale and influence form and function.

The talk is free and open to the public. The meeting is readily accessible via public transportation. Parking is available in the Oxford Street Garage with advance arrangement, as described here, or (usually but not always) at spaces on nearby streets. Everyone is also welcome to join us for dinner before the talk (beginning at 6:00 PM) at Cambridge Common restaurant, on 1667 Massachusetts Ave.

CEC meetings are held the second Tuesday of the month from October through May. The evening schedule typically includes an informal dinner (6:00 to 7:15 PM) followed by our formal meeting (7:30 – 9:00 PM). The latter begins with club business and is followed by a 50 minute entomology related presentation. Membership is open to amateur and professional entomologists.