September 2017

Very exciting news – our NSF proposal was funded to directly compare the cityscape genomics of rats in 4 major cities: Salvador, New York City, Vancouver, and New Orleans. This will fund our lab and students as we complete the ddRADseq genomic analyses, and travel to these cities and work intensively with our collaborators at Fordham, the University of British Colombia, and Tulane.

July 2017

During the Urban Ecology symposium at the International Congress for Conservation Biology, Jonathan presented on our work with cityscape genomics of rats in Salvador, Brazil. He highlighted why rats are here to stay and should be studied as a member of modern urban animal communities. The meeting was in Cartagena, Colombia, so side trips to see the nearby coral reefs and rain forest was a learning experience, for sure.

June 2017

After everyone encountered travel mayhem, the Richardson Lab all made it to the Evolution meeting in Portland, Oregon – presenting new work on rats, mice, beavers, muskrats and… frogs! Kerry and Georgi participated in the great undergraduate diversity program.

May 2017

First, there was a big graduation/fledging of 4 seniors in the lab. Congratulations Laura, John, Sarah and Peter – you will be missed! After graduation, we finished up our ddRAD sequencing this month with the Munshi-South lab at Fordham. Georgi and Jonathan extracted 200 new rats from Salvador, Brazil, which join our multi-city comparative landscape genetics project.

March 2017

A new paper led by our lab is out in journal Evolutionary Applications. In this study we use spatial genetic analyses of >700 rats in Salvador, Brazil to design “eradication units” that the Ministry of Health is using to plan future intervention to reduce leptospirosis risk in favelas. More details on the project can be found here.

December 2016

Jonathan had a great time visiting the UMass-Amherst Department of Environmental Conservation and discussing landscape genomics at the weekly seminar. Thanks to Andy Danylchuk for the invitation.

October 2016

Stonehill logoJonathan visited Stonehill College to talk about landscape genetics and urban evolution during the weekly seminar in the Biology Department.  It was great to finally see Stonehill and meet everyone in the department. Thank you to Nick Block and Bronwyn Bleakley for the invitation and stimulating discussions!

September 2016

We are proud! The first two Richardson Lab alums are starting graduate school this month. Mary Burak (’15) is now a PhD student at Yale, using landscape genetics and spatial ecology to manage human-wildlife conflict in east Africa. Nikelle Petrillo (’16) is starting the graduate bioinformatics program at Northeastern University in Boston, looking at transcriptional regulation in human diseases. Good luck Mary and Nikelle!

img_3662August 2016

Three Richardson Lab member presented at the Fordham Undergraduate Research Symposium in New York City. Laura Angley (’17) spoke about urban rats and the spatial distribution of their pathogens. Kerry Barrett (’18) shared results from her Peromyscus mouse landscape genetic analyses. Jonathan gave the keynote address on the importance of developing a tool set in the natural sciences. Coverage of the event can be found here.

July 2016

Jonathan traveled to Salvador, Brazil to present spatial genetic data on urban rats for the Department of Health and Ecology and Evolution of Infectious Diseases group. This study is part of a multi-year project to limit the ability of the Norway rat to move, persist and transmit leptospirosis to residents in Salvador.

June 2016

nikelle-at-poster_evolution-2016Nikelle Petrillo (’16) presented her fantastic senior research project on salamander transcriptomics at the Evolution meeting in Austin, Texas. She highlighted some striking differences in gene expression levels based on evolutionary history and food level treatments in our experiment with Mark Urban at UConn.

May 2016

The Richardson Lab is spending the summer in New York City. We will be working with Jason Munshi-South’s lab group at Fordham University on the urban landscape genetics of rats and their pathogens. Laura Angley (’17) and Kerry Barrett (’18) will be joining the first all-female cohort of REU students at the Fordham Calder Center!

March 2016

PRforWeb-2014-04-03_1396539713Our paper published in The American Naturalist in 2015 received the 2016 Presidential Award from the American Society of Naturalists. From the announcement: “This paper by Urban and Richardson presents an elegant series of studies of how foraging rates have evolved in multiple populations of the spotted salamander (Ambystoma maculatum) that coexist with different types of predators… The paper crosses disciplinary boundaries by explicitly exploring how the ecological context of a population shapes the evolutionary pressures it experiences. The authors expound a clear set of theoretically justified and empirically testable predictions and describe the natural history of the system to set the biological stage for those predictions. They then present results from a series of observational studies to provide context. Finally, they present the results of a carefully designed experiment to rigorously test their predictions.” Thank you the ASN for their support, and Mark Urban for a fun and important study!

March 2016

Screen Shot 2016-03-22 at 1.06.12 PMJonathan attended the Rhode Island Land & Water Summit and presented on amphibian ecology during a workshop on using stormwater to create green infrastructure and amphibianhabitat. This meeting brings conservation groups, regulators, environmental leaders and politicians together to work on shared interests and problem solving of environmental issues. The stormwater workshop was organized by Greg Gerritt
of the Environmental Council of Rhode Island.

February 2016

Molecular Ecology just published our article on navigating the pitfalls that have arisen during the rapid development of the field of landscape genetics. We highlight the weaknesses (as we see them) and provide some guidance for designing and conducting a landscape genetics study in a way that will maximize it’s insight and impact.

January 2016

Our study on the breeding ecology of urban rats in Salvador Brasil has been published in the Journal of Heredity. The upshot is that it is common for multiple males to sire litters in these urban rat populations, and inbreeding levels are high – suggesting that eradication efforts may be having a measurable effect on genetic viability. This project was part of Mary Burak’s senior thesis project in the lab. Congrats Mary!

November 2015

WHOI logoJonathan finally had the chance to visit Woods Hole Oceanographic Institution (WHOI) to give the weekly seminar in the Biology department. What an amazing place with a great diversity of research occurring in a beautiful location. Thank you to Andy Jones and Joel Llopiz for the invitation and hosting.


October 2015

Screen Shot 2015-10-13 at 2.56.46 PMJonathan visited the University of Vermont to give a seminar in the Rubenstein School of Environment and Natural Resources. The discussions were stimulating and the foliage amazing (there was time for some autumn leaf peeping, of course). Thank you to Steve Brady for the invitation and hosting.


September 2015

yale YCongratulations to Mary Burak for accepting a position in the Ecology & Evolutionary Biology department at Yale! She will be working in Gisella Caccone’s lab on the landscape genetics of tsetse flies, the main vector of sleeping sickness and nagana in Africa. Luckily for us, she will still be working with us on Norway rat genetics and the epidemiology of leptospirosis.

July 2015

Jonathan & Mary were in Portland Oregon to present work on the genetics of Norway rat epidemiology at the IALE Landscape Ecology meeting this month. Jonathan presented in the landscape genetics symposium on Thursday and Mary had her poster presentation among the Urban Ecology section on Monday. They were able to kill two birds with one stone and also attend the World Domination Summit occurring just down the street.

Mary at posterWorld Domination Summit sign
June 2015

Aeon Schlesinger article cover photo_AMOP

Aeon magazine (a newer media-saavy outlet for a broad range of topics) published an article by Victoria Schlesinger on evolution occurring at very small geographic scales (i.e., neighboring populations). It focuses on much of the work going on in our lab here at PC. And the author does a great job in breaking down the details and significance of the research! You can find the article here.


May 2015

photo: M. Urban

Our forthcoming paper was highlighted by the American Society of Naturalists in their news press release. Their upshot on salamander feeding evolution: “The evolution of eating suggests that many genes determine how much we eat. Perhaps humans also evolved to eat more or less depending on whether we were stalked by large predators or needed to fight for every scrap of food with our neighbors.


April 2015


Our field season started with a long delay from the protracted winter, but we are wader-ed up and ready to sample ponds and survey mammal populations!


April 2015

Tory and Eric posterEric and Tory traveled to New York to present their exciting effective population size data on wood frogs at the Eastern Colleges Research Conference. They represented the amphibians well among the nearly 200 presentations from more than a dozen participating institutions. Well done guys!

March 2015

We received a Franklin Research Grant for our work on wildlife conservation genetics. Thank you to the American Philosophical Society for supporting our regional work.

March 2015

Congratulations to Peter and Laura for being awarded Walsh Research Fellowships to support their research this coming summer on the landscape genetics of mammals in southern New England!

February 2015

Our recent work on evolution occurring at microgeographic scales on the landscape was discussed in a Slate magazine article by Katie Langin – a fellow biologist studying fine-scale adaptation in scrub jays on Santa Cruz Island off the coast of California.

December 2014

logoJonathan had the chance to visit the University of Rhode Island and give the final seminar of the semester for the Biological Sciences department. It was great to meet with the faculty and students at URI and hear about the many interesting projects they’re doing. Thank you to Jason Kolbe for the invitation and for hosting.

October 2014

Congratulations to Mary, Laura, John and Peter for each being awarded competitive grants from the Undergraduate Research Committee at Providence College! They will use these funds to work on landscape genetics in mice and to explore physiological adaptations in marbled salamanders.

August 2014

Harkins springThe Richardson/PC Conservation Lab officially opens for business (well, research) this month at Providence College in Rhode Island. It’s an exciting time and I’ll be launching some new projects with small mammals in southern New England. We’ll also be starting a physiology experiment with the marbled salamanders… once this drought ends and the vernal ponds start filling again. So come visit our lab and see what we’re up to, either in person (Hickey Hall) or on the web (!

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