Výsledky vyhledávání - "John S. Placyk"

Phylogeography of the smooth greensnake, Opheodrys vernalis (Squamata: Colubridae): divergent lineages and variable demographics in a widely distributed yet enigmatic species

Autor: Brian E. Smith, Gary S. Casper, John S. Placyk, Brian R Blais, Garth M. Spellman

Publikováno v: Biological Journal of the Linnean Society. 134:940-957

Phylogeographic studies can uncover robust details about the population structure, demographics, and diversity of species. The smooth greensnake, Opheodrys vernalis, is a small, cryptic snake occupying mesic grassland and sparsely wooded habitats. Al

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::995fd1d166cb0aabdbfad1e452bed833
https://doi.org/10.1093/biolinnean/blab124

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Multiple complementary studies clarify which co-occurring congener presents the greatest hybridization threat to a rare Texas endemic wildflower (Hibiscus dasycalyx: Malvaceae)

Autor: Megan Seawright, Alyssa Blanton, Marsha G. Williams, Randall L. Small, John S. Placyk, Katherine Barthel, Kate L. Hertweck, Melody P. Sain, Joshua A. Banta, Julia Norrell-Tober, Lance R. Williams

Publikováno v: Journal of the Botanical Research Institute of Texas. 15:283-308

The Neches River Rose Mallow (Hibiscus dasycalyx) is a rare wildflower endemic to Texas that is federally protected in the U.S.A. While previous work suggests that H. dasycalyx may be hybridizing with its widespread congeners, the Halberd-leaved Rose

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4366cd3d74c001115b101fa30446e317
https://doi.org/10.17348/jbrit.v15.i1.1064

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Relictual Hybridization and Biogeography of Massasauga Rattlesnakes (Sistrurusspp.)

Autor: Bradley T. Martin, Marlis R. Douglas, Tyler K. Chafin, John S. Placyk, Stephen P. Mackessy, Jeffrey T. Briggler, Michael E. Douglas

Climate change inevitably leaves behind a genetic footprint within phylogeographic legacies of affected species, as individuals are driven to either disperse to track suitable conditions or adaptin situ. One potential consequence is the possibility o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::62e66c251dce064eacd9eaf8d291c53d
https://doi.org/10.1101/2022.08.29.505772

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The choices we make and the impacts they have: Machine learning and species delimitation in North American box turtles ( Terrapene spp.)

Autor: John S. Placyk, Marlis R. Douglas, Roger D. Birkhead, Michael E. Douglas, Bradley T. Martin, Christopher A. Phillips, Tyler K. Chafin

Publikováno v: Molecular Ecology Resources. 21:2801-2817

Model-based approaches that attempt to delimit species are hampered by computational limitations as well as the unfortunate tendency by users to disregard algorithmic assumptions. Alternatives are clearly needed, and machine-learning (M-L) is attract

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83fd2a22eb528950d0f827f16746bbf3
https://doi.org/10.1111/1755-0998.13350

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The choices we make and the impacts they have: Machine learning and species delimitation in North American box turtles (Terrapenespp.)

Autor: Roger D. Birkhead, Tyler K. Chafin, Christopher A. Phillips, John S. Placyk, Bradley T. Martin, Michael E. Douglas, Marlis R. Douglas

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::519fa0ba16a2ef170ae7501d945372c5
https://doi.org/10.1101/2020.05.19.103598

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DNA Barcoding Permits Identification of Potential Fish Hosts of Unionid Freshwater Mussels

Autor: Lance R. Williams, Nathaniel T. Marshall, Joshua A. Banta, John S. Placyk, Marsha G. Williams

Publikováno v: American Malacological Bulletin. 36:42-56

Fish have an ecologically significant role in the life-history of unionid freshwater mussels, as the larvae of most species are obligate ectoparasites (glochidia) on fish hosts. Although this ecological interaction is vital to freshwater mussel conse

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::833858daa0363fcb59defb047fce17d9
https://doi.org/10.4003/006.036.0114

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Contrasting signatures of introgression in North American box turtle (Terrapenespp.) contact zones

Autor: Tyler K. Chafin, John S. Placyk, Christopher A. Phillips, Roger D. Birkhead, Bradley T. Martin, Marlis R. Douglas, Michael E. Douglas

Hybridization occurs differentially across the genome in a balancing act between selection and migration. With the unprecedented resolution of contemporary sequencing technologies, selection and migration can now be effectively quantified such that r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a186bec541bd59a623825fc9a1245938
https://doi.org/10.1101/752196

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CONSERVATION BIOLOGY OF A SOUTHWESTERN ENDEMIC, THE TEXAS GARTER SNAKE, THAMNOPHIS SIRTALIS ANNECTENS: AN INTEGRATIVE PERSPECTIVE

Autor: Andrew G. Gluesenkamp, Kayla N. Key, Joshua A. Banta, John S. Placyk, Kate L. Hertweck

Publikováno v: The Southwestern Naturalist. 64:8

We investigate the taxonomic status of the Texas garter snake, Thamnophis sirtalis annectens, a species of greatest conservation need in Texas. We broadly test the hypothesis that an integrative approach to species conservation has greater utility th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8d51595298a085916181457d41995efd
https://doi.org/10.1894/0038-4909-64-1-8

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