David Toews

Assistant Professor of Biology

David Toews

Huck Affiliations


Publication Tags

Genes Genomics Genome Songbirds Color Plumage Mitochondrial Dna Introgression Birds Pigmentation Reproductive Isolation Polymorphism Gene Flow Carotenoids Phenotype Animals Single Nucleotide Polymorphism Pollen Feathers Methodology Biogeography Chromosomes Setophaga Nucleotides Hybridization

Most Recent Publications

Molecular assays of pollen use consistently reflect pollinator visitation patterns in a system of flowering plants

Aubrie R.M. James, Monica A. Geber, David P.L. Toews, 2022, Molecular Ecology Notes on p. 361-374

Silu Wang, Madelyn J. Ore, Else K. Mikkelsen, Julie Lee-Yaw, David P.L. Toews, Sievert Rohwer, Darren Irwin, 2021, Nature Communications

Marcella D. Baiz, Andrew W. Wood, David P.L. Toews, 2021, Ecology

David P.L. Toews, Marcella D. Baiz, Gunnar R. Kramer, Irby J. Lovette, Henry M. Streby, Scott A. Taylor, 2021, Ecology and Evolution on p. 10720-10723

Pigmentation Genes Show Evidence of Repeated Divergence and Multiple Bouts of Introgression in Setophaga Warblers

Marcella D. Baiz, Andrew W. Wood, Alan Brelsford, Irby J. Lovette, David P.L. Toews, 2021, Current Biology on p. 643-649.e3

Stephanie J. Szarmach, Alan Brelsford, Christopher C. Witt, David P.L. Toews, 2021, Molecular Ecology

Silu Wang, Sievert Rohwer, Devin R. de Zwaan, David P.L. Toews, Irby J. Lovette, Jacqueline Mackenzie, Darren Irwin, 2020, Evolution Letters on p. 502-515

David P.L. Toews, Gunnar R. Kramer, Andrew W. Jones, Courtney L. Brennan, Benjamin E. Cloud, David E. Andersen, Irby J. Lovette, Henry Streby, 2020, Biological Journal of the Linnean Society on p. 183-191

Marcella D. Baiz, Gunnar R. Kramer, Henry M. Streby, Scott A. Taylor, Irby J. Lovette, David P.L. Toews, 2020, Ornithology

David P.L. Toews, Marcella D. Baiz, 2020, Current Biology on p. R309-R311

Most-Cited Papers

David P.L. Toews, Alan Brelsford, 2012, Molecular Ecology on p. 3907-3930

David P.L. Toews, Scott A. Taylor, Rachel Vallender, Alan Brelsford, Bronwyn G. Butcher, Philipp W. Messer, Irby J. Lovette, 2016, Current Biology on p. 2313-2318

Migration, mitochondria, and the yellow-rumped warbler

David P.L. Toews, Milica Mandic, Jeffrey G. Richards, Darren E. Irwin, 2014, Evolution; international journal of organic evolution on p. 241-255

The Evolution and Genetics of Carotenoid Processing in Animals

David P.L. Toews, Natalie R. Hofmeister, Scott A. Taylor, 2017, Trends in Genetics on p. 171-182

Kira E. Delmore, David P.L. Toews, Ryan R. Germain, Gregory L. Owens, Darren E. Irwin, 2016, Current Biology on p. 2167-2173

David P.L. Toews, Leonardo Campagna, Scott A. Taylor, Christopher N. Balakrishnan, Daniel T. Baldassarre, Petra E. Deane-Coe, Michael G. Harvey, Daniel M. Hooper, Darren E. Irwin, Caroline D. Judy, Nicholas A. Mason, John E. McCormack, Kevin G. McCracken, Carl H. Oliveros, Rebecca J. Safran, Elizabeth S.C. Scordato, Katherine Faust Stryjewski, Anna Tigano, J. Albert C. Uy, Benjamin M. Winger, 2015, Ornithology on p. 13-30

A comparison of genomic islands of differentiation across three young avian species pairs

Darren E. Irwin, Borja Milá, David P.L. Toews, Alan Brelsford, Haley L. Kenyon, Alison N. Porter, Christine Grossen, Kira E. Delmore, Miguel Alcaide, Jessica H. Irwin, 2018, Molecular Ecology on p. 4839-4855

Kang Wook Kim, Benjamin C. Jackson, Hanyuan Zhang, David P.L. Toews, Scott A. Taylor, Emma I. Greig, Irby J. Lovette, Mengning M. Liu, Angus Davison, Simon C. Griffith, Kai Zeng, Terry Burke, 2019, Nature Communications on p. 1852

Alan Brelsford, David P.L. Toews, Darren E. Irwin, 2017, Proceedings of the Royal Society B: Biological Sciences on p. 20171106

David P.L. Toews, Scott A. Taylor, Henry M. Streby, Gunnar R. Kramer, Irby J. Lovette, 2019, Proceedings of the National Academy of Sciences of the United States of America on p. 18272-18274

News Articles Featuring David Toews

Never-before-seen colorful bird hybrid surprises scientists

A birder named Stephen Gosser recently took a stroll through the woods in Lawrence County, Pennsylvania, when he heard what he thought was a scarlet tanager.

Penn State biologists explore the secrets of the warbler genome

Looking through binoculars at the trees in their backyards during the pandemic, many brand-new birders may have been surprised by the diversity of visitors stopping by — finches, jays and warblers in an astounding array of yellows, blues and reds.

Weird warbler reveals genetics of its mismatched colors

An incredibly rare hybrid warbler with mismatched color patterns has allowed researchers to disentangle the genetic drivers of two traits that usually come as a package deal — the black face mask and the black throat patch in blue-winged and golden-winged warblers.

Warbler coloration shaped by evolution via distinct paths

Two genes that are important for the diverse colors and patterns of warbler plumage have evolved through two very different processes, according to a new study led by Penn State researchers. These evolutionary processes could help explain the rapid evolution of these songbirds into so many unique species.

The Gene that Makes Female Birds Drab

In some finch species, the difference between colorful males and muted females comes down to one gene, BCO2, which encodes an enzyme that degrades carotenoids.

What determines a warbler's colors?

A new study has narrowed down the region of the genome that drives the black color in throat and face of warblers by studying the hybrid offspring produced when two species mate.

Bird Migration Is Written In Their Genes

A team of researchers has identified a single gene associated with migration in songbirds by combining whole genome sequencing with migration tracking technology for the first time ever

New insights into genetic basis of bird migration

Genetics of bird migration also associated with neurological disorder in humans

New insights into genetic basis of bird migration

A gene newly associated with the migratory patterns of golden-winged and blue-winged warblers could lend insight into the longstanding question of how birds migrate across such long distances.

This finch has a coat of many colors, but its head hue is the key

Gouldian finches are flashy birds. Native to Australia, they seem to wear a kaleidoscope of bright rainbow feathers. But there are three distinct color variations with individuals having a red, black or yellow head.