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The Benowitz-Fredericks Research Lab

Avian endocrinology at Bucknell University

2020 Updates

November 13, 2020 by Dr. BenFred

In Spring 2020, Chase, Paige, Sierra, Taiba and Steph sent Liv good vibes when she took the MCAT

  • After COVID shut down Buknell’s campus during Spring Break in March 2020, several research projects were interrupted and, due to safety concerns about travel and medical access on a remote island, our planned Summer 2020 field season on Middleton Island was cancelled.
  • Olivia ‘Liv’ George graduated in Spring 2020! We were so sad not to be able to celebrate her in person.
  • Bucknell’s campus was open for in person (and hybrid) instruction in Fall 2020; the lab met regularly (masked and following social distancing protocols) and research continued, albeit a bit more slowly than usual.
  • Sierra Pete and Taiba Khan learned to use BORIS software and analyzed ~34 hours of kittiwake chick behavior.
  • Sierra submitted an abstract for the 2021 virtual SICB conference.
  • Steph Lin taught Eadaoin Kelly and Verona Hendricks (our newest lab members) how to do DNA extractions, PCR & gel electrophoresis for genetic sexing of kittiwake chicks, and is currently optimizing RNA extractions.
  • Chase Hoehn finished validating and evaluating glucose assays from 2019 kittiwake plasma samples and is learning RNA extraction with Steph; in the Spring they will use real-time qPCR to quantify gene expression in chicken tissues from an experiment involving embryonic exposure to an aromatase inhibitor.
  • Paige Caine finished some real-time qPCR assays that were suspended when campus shut down last Spring, and is validating qPCR primers to see if she can get published chicken primers working in some rhinoceros auklet RNA samples, to look at effects on dietary restriction on expression of metabolic genes. 

In addition to ongoing research projects, this year our lab has placed an emphasis on reading and discussing student-selected papers about inequities in STEM. Through the acknowledgement of these injustices we hope to make ourselves and those we interact with more aware of these problems, and make meaningful changes in our current and future professional and personal lives. 

Filed Under: News

SUMMER 2019

June 14, 2019 by Dr. BenFred

  • Katie Edwards and Abby Joseph finished with a strong Spring semester – a Kalman Symposium talk for Katie (she had to give at least one public talk, after presenting her research in poster format at SICB in January!), and a successful honors thesis defense (also a public talk) for Abby. Abby is currently working with lab alum Jeff Simkins (’15) to incorporate her thesis research into a manuscript from his honors thesis research, and submit it for publication.
  • Paige Caine is headed off for a summer REU studying ants, while Olivia George is taking classes this summer.
  • One of our newest lab members is Masters student Sierra Pete (M.S. ’21), who  jumped in with both feet and has been on Middleton Island in Alaska since May, immersed in learning everything she can about kittiwakes and starting her data collection before she even officially starts at Bucknell!
  • In the Fall, we will welcome several additional incoming lab members – Chase Hoehn (’21) and Taiba Khan (’22)

Filed Under: News

Kalman Undergraduate Research Symposium, March 2018

March 25, 2018 by Dr. BenFred

‘Fledging’ Paige (Collins, ’18) and ‘Hatchling’ Paige (Caine, ’21) just before fPaige’s symposium talk! It was well-attended and well-delivered. Nigel Ravida also presented a poster about a gene annotation project from his genomics class at the symposium (but alas, we don’t have any photo-documentation).

Filed Under: News

Spring 2018 Updates

March 3, 2018 by Dr. BenFred

  • Seniors Mae Lacey, Paige Collins and Nigel Ravida are getting ready to graduate in a few short months. All are looking to continue in biology! Mae will spend the summer working with endangered roseate terns off the coast of CT, and Paige and Nigel are both seeking research positions in labs.
  • Mae presented her research on the effects of microclimate on kittiwake reproductive success at SICB in January, opting to give an oral presentation instead of the more traditional (for undergraduates) poster – she delivered a graduate-level talk that made us proud! She’s working on her honors thesis on the same research, which she will defend in April.
  • Paige Collins (’18) is preparing a talk for Bucknell’s Kalman symposium where she will present research that the whole lab worked on last year, genetically sexing nearly 70 kittiwake chicks to understand how age, sex and chick status affect growth and survival of chicks exposed to acute reductions in food availability.
  • Paige Collins and Nigel Ravida (’18) are both working to extract RNA from whole kittiwake blood, identify focal genes and design qPCR primers to evaluate the effects of acute food shortages on gene expression in adult kittiwakes.
  • Paige Caine (’21) is spending spring learning how to run EIAs to quantify hormones and preparing to spend a few weeks on Middleton Island, AK this summer, studying whole free-living kittiwakes instead of just working with samples in the lab!
  • Manya Saaraswat (’19) has been neck-deep in video footage of feisty kittiwake chicks, building an ethogram to quantify begging, feeding and aggressive behaviors, in an effort to identify predictors of siblicide.
  • Katie Edwards (’19) is making the most of her semester in Scotland, exploring culture, history and science all over Edinburgh, but still planning her summer kittiwake bioinformatics project.
  • Abby Joseph (’19) officially joined the lab this Spring, and is also learning how to run EIAs. She’s working on a follow-up experiment to strengthen the data for our developmental fadrozole exposure project.

Filed Under: News

Fall 2017 Updates

November 5, 2017 by Dr. BenFred

  • Bucknell undergraduates Paige Collins, Nigel Ravida and Paige Caine joined the lab, and leapt into the business of DNA extraction and PCR (to genetically sex kittiwake chicks), along with Katie Edwards who returned to the lab following Morgan’s sabbatical (but is headed out for a semester abroad in Scotland next semester!). RNA extraction and hormone assays are the next project on the agenda for this group, as the lab works through kittiwake samples from the 2017 field season.
  • Mae Lacey, who had joined the lab last year in preparation for the 2017 field season, is working on analyzing the enormous files of microclimate data she collected over the summer, both for her honors thesis, and to present her research at the annual meeting of the Society for Integrative and Comparative Biology in January. Her research this summer was supported by a the award of a Sigma Xi Grant-in-Aid-of-Research, and her participation in the conference was supported both by SICB and by Bucknell University.
  • This year, the lab is piloting the use of the organizational/communication app “Slack” to coordinate all lab communications and keep track of documents (since we all like to ignore email, sometimes, and it can be nice to keep texting for personal communication). So far, so good.
  • Our lab invited collaborator Kyle Elliott (from McGill University) to give a Biology Department seminar in October. Kyle and his students also work on Middleton Island, and our labs have been exchanging ideas, field support and collaborations. His talk on aging and senescence in wild birds was  an exciting addition to our seminar series this Fall.

Filed Under: News

Dr. Benowitz-Fredericks is on sabbatical for the 2016-2017 year

October 3, 2016 by Dr. BenFred

Things are a little quieter in the lab this year while MBF is on sabbatical, doing some traveling and collaborating with a colleague at Penn State. However, as a result of the extraordinary hard work of student Eyuel Seyoum, who spent 100 days living in a tent at field camp on an island in the Gulf of Alaska this summer (!), we brought back a lot of samples and data from our field season with black-legged kittiwakes (Rissa tridactyla) on Middleton Island, AK. Eyuel and Nicole Rupik (’19) are working hard this year to unravel the mysteries of the kittiwakes!

This abandoned radar tower was converted into prime kittiwake nesting habitat by Dr. Scott Hatch, several decades ago. You can feed, observe, and access hundreds of invidiual nest sites from inside the tower. For the past few decades, this tower has served as a remarkable natural laboratory to study the effects of food availability on physiology and life-history of these charismatic marine top-predators. Morgan and Eyuel had the privilege of working at this field site in summer 2016.
This abandoned radar tower was converted into prime kittiwake nesting habitat by Dr. Scott Hatch, several decades ago. You can feed, observe, and access hundreds of invidiual nest sites from inside the tower. For the past few decades, this tower has served as a remarkable natural laboratory to study the effects of food availability on physiology and life-history of these charismatic marine top-predators. Morgan and Eyuel had the privilege of working at this field site in summer 2016. Photo by MBF, 2016.

A kittiwake chick peers out from under it’s banded parent at Middleton Island.

Filed Under: News

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