Congratulations to Nathalie Steinhauer, Kelly Kulhanek, Karina Antúnez, Hannelie Human, Panuwan Chantawannakul, Marie-PierreChauzat, and Dennis vanEngelsdorp whose article, “Drivers of colony losses” has been published in Current Opinion in Insect Science. Check out the full article at https://doi.org/10.1016/j.cois.2018.02.004.
Congratulations to Xing Zhang,Raymond J St. Leger and Weiguo Fang, whose article, “Stress-induced pyruvate accumulation contributes to cross protection in a fungus” was recently published in Environmental Microbiology.
This study examines mechanisms for cross protection in microorganisms. Check out the full article at http://onlinelibrary.wiley.com/doi/10.1111/1462-2920.14058/full.
New Publication: Influence of Winter Cover Crop Mulch on Arthropods in a Reduced Tillage Cucurbit System
Congratulations to Amanda L Buchanan and Cerruti R R Hooks on their recent publication in Environmental Entomology titled “Influence of Winter Cover Crop Mulch on Arthropods in a Reduced Tillage Cucurbit System.” Check out the full report at https://doi.org/10.1093/ee/nvy004
Last month Atlanta-based pest control company Orkin released its "Top 50 Bed Bugs Cities" report, listing Baltimore and Washington as leading cities in bedbug infestations. In response, Direct Connection on Maryland Public Television aired expert advice from Dr. Michael Raupp on protecting your home from bedbugs.
New Publication: Arthropod communities in warm and cool grass riparian buffers and their influence on natural enemies in adjacent crops.
Congratulations to Jessica L. Nelson, Lauren G. Hunt, Margaret T. Lewis, Kelly A. Hamby, Cerruti R.R. Hooks, Galen P. Dively on their recent paper in Agriculture, Ecosystems & Environment titled “Arthropod communities in warm and cool grass riparian buffers and their influence on natural enemies in adjacent crops.”
This study examines arthropod communities in riparian grass buffers, with a focus on their effect on natural enemy populations within neighboring crops. Check out the full article https://doi.org/10.1016/j.agee.2018.01.019.
Congratulations to the recipients of the Spring 2018 Ernest N. Cory Undergraduate Scholarship! This scholarship provides up to $1,000 for undergraduate students each semester who have creatively contributed to Entomology Department research and/or extension efforts. Be sure to check back in to read more about their research progress!
Lyra Morina is a University Honors junior Biological Sciences: Cell Biology & Molecular Genetics and Economics dual degree. Working with Culex pipiens mosquitoes in the Fritz Lab for over a year, she began her own research project studying Wolbachia induced Cytoplasmic Incompatibility (CI) in Culex pipiens pipiens and molestus through the Cell Biology & Molecular Genetics Departmental Honors Program. By linking incompatibility patterns to the unique Wolbachia endosymbiont strains the mosquitoes harbor, the Wolbachia genes inducing these effects on embryonic development can be investigated. Lyra aims to pursue a PhD within Cell Biology and Molecular Genetics and continue her career path in biological research and academia. She also hopes to apply her background in economics to quantifying the impact of biological research outcomes on public health, environmental issues, and other social phenomena.
Lily Durkee has been working with the Gruner Lab since the summer before her senior year of high school. It was because of this incredible experience that summer that she decided to attend UMD as an undergraduate student and pursue a degree in Ecology and Evolution. Currently, she is working towards completing an Honors Thesis within the Department of Entomology that focuses on assessing the effects of restoration strategies on the macroinvertebrate benthic communities in Anacostia Park marsh systems. After she graduates next spring, she plans on attending graduate school to pursue a PhD in entomology, ecology, or natural resource management.
Chloe Garfinkel is a senior biology major with an ecology and evolution concentration and a sustainability minor. She has worked in the Lamp lab since the summer after her freshman year at Maryland. She is working on an independent research project on the damselfly Calopteryx maculata to determine the effect of habitat on adult size and nutritional content. She has volunteered at and planned the lab's Maryland Day event 'Discover a Swamp,' where children can collect insects from an artificial swamp. She has just finished applying to graduate school and in the future, she hopes to pursue interests in both biology and education.
Bijal Kikani research in the Pick lab focuses on investigating the role of pair rule genes in Drosophila melanogaster to better understand their roles during embryonic development. Particularly, she is searching for binding partners of a nuclear hormone receptor, Ftz-F1, to understand how gene regulation is controlled. Through the use of western blots, co-immunoprecipitation assays, and mass-spectrometry, she hopes to narrow down candidate binding partners of this nuclear receptor and verify these genes using RNA interference experiments. She says her exposure to this lab has increased her skills in molecular genetics and she hopes to continue to strengthen these skills through further exposure in the research field.
The Pick lab uses Drosophila melanogaster, a long germ insect, to investigate the regulatory genes and pathways that control embryonic development. Accordingly we sought other long germ insects for comparative studies and we are investigating pair rule genes in the beetle Callosobruchus maculatus. She says with the help of Pick Lab members, she has been able to improve embryo collection and fixation techniques, stage early embryogenesis and isolate a pair rule gene using molecular techniques, including PCR, DNA sequencing, and TA cloning. She hopes to continue doing research and eventually go to graduate school.
Check out our Fall 2017 Entomology Department newsletter to see what we've been up to!
Is there something you'd like to see in the Spring 2018 edition? Let us know by sending an e-mail to email@example.com.
Congratulations to Dr. Leo Shapiro, who will join the UMD Teaching & Learning Transformation Center's 2018 Elevate Fellows cohort!
Over the next year, Dr. Shapiro will work to implement innovative, research-based, student-centered teaching and learning strategies in Principles of Ecology & Evolution (BSCI160), a high-enrollment undergraduate course in the introductory biology series offered at UMD. The Elevate Fellowship includes $8,000 in funding and the opportunity to work with TLTC to re-imagine and re-design content delivery and test the effectiveness of the new approach at the end of the year.
Learn more about TLTC's Elevate Fellows Program here.
The Ruth Patrick Award is given to scientists who have made outstanding contributions towards solving environmental problems. The Association for the Sciences of Limnology & Oceanography (ASLO) has awarded Dr. Margaret Palmer of the University of Maryland, College Park this distinguished honor in recognition for being a champion of solution-driven science for the protection of freshwaters. The award will be presented at the ASLO Summer Meeting in Victoria, British Columbia in June 2018.
Congratulations Dr. Palmer! Read the full press release here.
The gall wasp tree of life is overdue for a major overhaul. With the help of new genetic technologies and the hard work of Crystal Cooke (Dept. Entomology, University of Maryland), we have a better understanding of the relationships between gall wasp species and clades.
One of the greatest mysteries in the field of Evolutionary Biology surrounds the origins of unique morphological structures that have come into existence over evolutionary time. The work of Dr. Mark Rebeiz from the University of Pittsburgh seeks to molecularly characterize the evolutionary changes in developmental mechanisms that control morphology. Using species from the vinegar fly genus Drosophila, Dr. Rebeiz has been able to demonstrate that the emergence of divergent traits, studied through abdominal pigmentation and male genitalia models, are in part the result of changes in the activity of transcription factors and gene regulatory mechanisms during development, rather than the emergence of new genes alone.
Researchers are developing new genomic approaches to detect pathogens and their vectors. These new methods reduce cost, increase sensitivity, and may allow for early detection of new parasites.
Dr. John Cooley focuses his research on the periodical cicada, and uses decades of data to map emergences of this insect. Due to methodological limits and unpredictable environmental changes, historical maps may provide inaccurate information. Dr. Cooley’s current mapping projects based on modern techniques and a better understanding of biology and biogeography are providing new insight into old ideas regarding periodical cicada distribution and emergence dynamics.
Turfgrass landscapes are a major component of our beloved parks, sports fields, golf courses, and historical monuments. Dr. Joesph Roberts, an assistant professor at the University of Maryland, is currently investigating the microbial communities present on the turfgrass of the National Mall in Washington D.C.. Dr. Roberts' research is fighting to keep our beautiful landscapes looking like the "American dream" and not like an American wasteland.
Horseshoe crabs (Order: Xiphonsura) were once thought to be a relatively static, unchanging group of organisms. Dr. Lamsdell of the University of West Virginia, however, fundamentally changed the way we view horseshoe crabs through his paleotonoligcal research on their dynamic evolutionary history.
Since 2007, the US has ramped up biofuels production citing reduction of greenhouse gas emissions and decreased dependence on foreign oil as goals. While biofuels can have positive environmental impacts, the rapid increase in corn and soy acreage and intensity has had unintended consequences. As an AAAS fellow at EPA, Dr. Dilip Venugopal studies the impacts of biofuels standards programs.
Congratulations to Dilip Venugopal and Galen Divley on their publication released today in Royal Society Open Science!
Climate change, transgenic corn adoption and field-evolved resistance in corn earworm.
Pests aggravate the agricultural costs of climate change. Understanding climate change interaction with transgenic crops, a key insect pest management strategy, helps minimize agricultural losses. We found that increasing temperature anomaly and its interaction with high Bt acreage probably accelerated Bt resistance development in a major crop pest, corn earworm. Bt resistant corn earworms may spread further given extensive Bt adoption, and their range expansion due to climate change. We highlight the need to incorporate evolutionary processes affected by climate change into Bt resistance management programs, and the challenges posed by climate change for Bt biotechnology based insect pest management.
Check out the full article here.
Dilip Venugopal completed his Ph.D. in the Entomology Department in 2014, co-advised by Drs. William Lamp and Galen Dively. He is now a AAAS Science & Technology Fellow at the Environmental Protection Agency in Washington, D.C.
Congratulations to the recipients of the Fall 2017 Ernest N. Cory Undergraduate Scholarship! This scholarship provides up to $1,000 for undergraduate students each semester who have creatively contributed to Entomology Department research and/or extension efforts. Be sure to check back in the Fall to read more about their research progress!
ABIGAIL TORETSKY, Palmer Lab, Undergraduate Research Assistant
Abigail's early work in the Palmer Lab consisted of sorting laboratory materials, discussing primary literature on wetland hydrology and biogeochemistry with graduate students, and assisting with the construction of field equipment. This work gave her a better understanding of how the lab uses raw field data to draw conclusions about wetland gas flux. This summer, Abigail plans to collect and analyze water samples after a storm from a wetland, nearby streams, and ground water in order to determine possible sources of ion flow into the wetland. Based on differences in the ion concentrations in these different areas, these data will hopefully help define the role of the wetland in the overall watershed.
JESSICA HERNANDEZ, Pick Lab, Undergraduate Research Assistant
While the Pick Lab traditionally uses Drosophila melanogaster to investigate the regulatory genes and pathways that control embryonic development – with an emphasis on pair rule genes – Jessica’s work in the lab focuses on orthologous pair rule genes in Oncopeltus fasciatus, an intermediate germband insect. Under the guidance of Pick Lab postdocs and graduate students, she has been able to isolate a new gene from O. fasciatus using a variety of molecular techniques, including PCR, TA cloning, and DNA sequencing. Ultimately, Jessica would like to attend professional school where she can complete an MD program in Emergency Medicine.
MERVIN CUADERA, Fritz Lab, Undergraduate Research Assistant
Knowing the important role that mosquitos play in disease transmission, Mervin thought working with Dr. Fritz would be both interesting and relevant to greater societal problems. Apart from rearing mosquitoes, Mervin is involved in a study of the effects of blood feeding source on fitness in Culex pipiens and C. molestus. Previous work suggests that C. pipiens prefers avian blood, while C. molestus prefers mammalian blood, leading to the prediction that preferred blood sources confer the highest fitness as measured by the number of eggs produced. Early results suggest that both strains, instead, have higher fitness when feeding on avian blood.
Early on, the Fritz Lab found it hard to count eggs accurately due to significant (and often nauseating) motion under the microscope. Therefore, Mervin suggested that they mount a camera on the scope to improve counting accuracy. The success of this approach has made it standard protocol for this research project.
VICTOR SETTLES, Gruner Lab, Undergraduate Research Assistant
Victor has been impressed by the diversity of insects since he was a child. After taking an entomology course this past spring and reading deeper into the primary literature, he pursued an undergraduate research position in Dr. Dan Gruner’s Lab. He now works under the guidance of Elske Tielens, a Gruner Lab BEES graduate student. His major tasks involve sorting, identifying, and curating arthropod samples from the Hawaiian Islands in order to assist Elske in investigating the effects of invasive predators on canopy insect communities in forests fragmented by lava flows and how these communities assemble over evolutionary time.
Victor hopes to use his experience in the Gruner lab working with dichotomous keys and learning to develop hypotheses about ecology and evolution to build a foundation in research that will ultimately set him on a path towards a career as a Principle Investigator.
Transgenic Bt crops have been a very successful tool for managing various insect pests in field crops. However, like all pest management strategies, they have both pros and cons. Dr. Dominic Reisig, from North Carolina State University, discusses the challenges of managing resistance against Bt crops, using the example of Helicoverpa zea, an important pest of both corn and cotton.
The mechanisms of exactly how mosquitoes locate their human hosts still elude the scientific community. Dr Conor McMeniman’s lab at Johns Hopkins has made advances in understanding the important role that the CO2 we exhale has to play in mosquitoes’ host-finding abilities. With the urgency of the Zika threat looming, understanding its mosquito vectors’ human-finding processes is vital to public health.
Annual emergences of chronomid (non-biting) midges at the subarctic Lake Myvatn in northeastern Iceland are being studied for their interesting effects on arthropod food webs. Understanding the aquatic-terrestrial linkages in the near-shore ecosystems will shed light on the role midges play in the nitrogen cycle.