User profiles for Ryan W. Norris

Ryan W Norris

The Ohio State University, Lima
Verified email at osu.edu
Cited by 629

On the causes of evolutionary transition: transversion bias

A Stoltzfus, RW Norris - Molecular biology and evolution, 2016 - academic.oup.com
A pattern in which nucleotide transitions are favored several fold over transversions is
common in molecular evolution. When this pattern occurs among amino acid replacements, …

The phylogenetic position of the zokors (Myospalacinae) and comments on the families of muroids (Rodentia)

RW Norris, K Zhou, C Zhou, G Yang… - Molecular Phylogenetics …, 2004 - Elsevier
Recent molecular studies have concluded that the genus Myospalax evolved from within
the rodent subfamily Cricetinae. This conclusion was tested using the complete sequences …

Expert range maps of global mammal distributions harmonised to three taxonomic authorities

…, G Musser, T Nadler, RW Norris… - Journal of …, 2022 - Wiley Online Library
Aim Comprehensive, global information on species' occurrences is an essential biodiversity
variable and central to a range of applications in ecology, evolution, biogeography and …

[HTML][HTML] Towards a uniform nomenclature for ground squirrels: the status of the Holarctic chipmunks

BD Patterson, RW Norris - Mammalia, 2016 - degruyter.com
The chipmunks are a Holarctic group of ground squirrels currently allocated to the genus
Tamias within the tribe Marmotini (Rodentia: Sciuridae). Cranial, postcranial, and genital …

Coevolution between cannabinoid receptors and endocannabinoid ligands

JM McPartland, RW Norris, CW Kilpatrick - Gene, 2007 - Elsevier
Genes for receptors and ligands must coevolve to maintain coordinated gene expression
and binding affinities. Researchers have debated whether anandamide or 2-arachidonyl …

Bat diversity in the Simandou Mountain Range of Guinea, with the description of a new white-winged vespertilionid

J Decher, A Hoffmann, J Schaer, RW Norris… - Acta …, 2015 - ingentaconnect.com
Tropical West Africa has a high diversity of bats, which are relatively poorly studied. In this
baseline biodiversity assessment of bats in the Simandou Mountain Range of southeastern …

A shifted repertoire of endocannabinoid genes in the zebrafish (Danio rerio)

JM McPartland, M Glass, I Matias, RW Norris… - Molecular Genetics and …, 2007 - Springer
The zebrafish has served as a model organism for developmental biology. Sequencing its
genome has expanded zebrafish research into physiology and drug-development testing. …

Morphological and Molecular Definition of Calomyscus hotsoni (Rodentia: Muroidea: Calomyscidae)

RW Norris, CA Woods, CW Kilpatrick - Journal of Mammalogy, 2008 - academic.oup.com
The rediscovery of Calomyscus hotsoni in Pakistan is reported. This species had previously
been known from a series of specimens taken at the type locality in southwestern Pakistan in …

Ancient DNA supports southern survival of Richardson's collared lemming (Dicrostonyx richardsoni) during the last glacial maximum

TL Fulton, RW Norris, RW Graham… - Molecular …, 2013 - Wiley Online Library
Collared lemmings (genus D icrostonyx) are circumpolar A rctic arvicoline rodents associated
with tundra. However, during the last glacial maximum ( LGM ), D icrostonyx lived along …

Small mammal survey in the upper Seli River valley, Sierra Leone

J Decher, RW Norris, J Fahr - 2010 - degruyter.com
In 2006, an inventory of small mammals was conducted on the upper Seli River in central
Sierra Leone on the southwestern fringe of the Loma-Man portion of the Guinea Highlands as …