Assistant Professor of Biology
Publication TagsGenomics Genome Genes Songbirds Mitochondrial Dna Color Plumage Introgression Birds Setophaga Animals Divergence Phenotype Gene Flow Pigmentation Reproductive Isolation Biogeography History Hybridization Genetic Markers Species Complex Polymorphism Mitochondria Genetics Genomic Islands
Most Recent Papers
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
Rare hybrid solves "genetic problem" of linked plumage traits
Marcella Baiz, Andrew Wood, Toews, David P. L., 2021, Ecology
Comparing divergence landscapes from reduced-representation and whole genome resequencing in the yellow-rumped warbler (Setophaga coronata) species complex
Stephanie J. Szarmach, Alan Brelsford, Christopher C. Witt, David P.L. Toews, 2021, Molecular Ecology
Extensive historical and contemporary hybridization suggests premating isolation in Vermivora warblers is not strong: A reply to Confer et al.
Toews, David P. L., Marcella Baiz, Gunnar Kramer, Irby Lovette, Henry Streby, Scott Taylor, 2021, Ecology and Evolution on p. 10720-10723
Signatures of mitonuclear coevolution in a warbler species complex
Silu Wang, Madelyn Ore, Else Mikkelsen, Julie Lee-Yaw, Toews, David P. L., Sievert Rohwer, Darren Irwin, 2021, Nature Communications
Genomic identification of intergeneric hybrids in New World wood-warblers (Aves Parulidae)
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
Genomic and plumage variation in Vermivora hybrids
Marcella D. Baiz, Gunnar R. Kramer, Henry M. Streby, Scott A. Taylor, Irby J. Lovette, David P.L. Toews, 2020, Auk
David P.L. Toews, Marcella D. Baiz, 2020, Current Biology on p. R309-R311
Selection on a small genomic region underpins differentiation in multiple color traits between two warbler species
Silu Wang, Sievert Rohwer, Devin R. de Zwaan, David Toews, Irby Lovette, Jacqueline Mackenzie, Darren Irwin, 2020, Evolution Letters on p. 502-515
Genetics and evidence for balancing selection of a sex-linked colour polymorphism in a songbird
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
The biogeography of mitochondrial and nuclear discordance in animals
David P.L. Toews, Alan Brelsford, 2012, Molecular Ecology on p. 3907-3930
Plumage Genes and Little Else Distinguish the Genomes of Hybridizing Warblers
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
The Genetics of Seasonal Migration and Plumage Color
Kira E. Delmore, David P.L. Toews, Ryan R. Germain, Gregory L. Owens, Darren E. Irwin, 2016, Current Biology on p. 2167-2173
Genomic approaches to understanding population divergence and speciation in birds
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, Auk on p. 13-30
A cryptic contact zone between divergent mitochondrial DNA lineages in southwestern North America supports past introgressive hybridization in the yellow-rumped warbler complex (Aves: Dendroica coronata)
Borja Milá, David P.L. Toews, Thomas B. Smith, Robert K. Wayne, 2011, Biological Journal of the Linnean Society on p. 696--706
Hybridization between Townsend's Dendroica townsendi and black-throated green warblers D. virens in an avian suture zone
David P.L. Toews, Alan Brelsford, Darren E. Irwin, 2011, Journal of Avian Biology on p. 434-446
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
Genomic variation across the yellow-rumped warbler species complex
David P.L. Toews, Alan Brelsford, Christine Grossen, Borja Milá, Darren E. Irwin, 2016, Auk on p. 698-717
News Articles Featuring David Toews
Jun 28, 2021
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.
Nov 30, 2020
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.
Sep 01, 2020
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.
Jul 14, 2020
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.
Oct 25, 2019
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
Sep 04, 2019
New insights into genetic basis of bird migration
Genetics of bird migration also associated with neurological disorder in humans
Aug 28, 2019
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.
Apr 27, 2019
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.
Apr 23, 2019
Varying head colors of Gouldian finches explained by unique evolutionary process
The heads of Gouldian finches feature one of three different colors: yellow, red and black. Now, scientists know why the pressures of natural selection have failed to erase the species' color variation.
Mar 26, 2019
Toews receives early investigator award from American Ornithological Society
David Toews, assistant professor of biology at Penn State, has been selected as the 2019 recipient of the Ned K. Johnson Early Investigator Award by the American Ornithological Society (AOS), an international society devoted to advancing the scientific understanding of birds.