Jonathan Q Richmond
Jonathan Richmond is a geneticist at the Western Ecological Research Center.
Science and Products
Filter Total Items: 31
Invaded invaders: Infection of invasive Brown Treesnakes on Guam by an exotic larval cestode with a life cycle comprised of non-native hosts
Background
Multiple host introductions to the same non-native environment have the potential to complete life cycles of parasites incidentally transported with them. Our goal was to identify a recently detected parasitic flatworm in the invasive Brown Treesnake (Boiga irregularis) on the remote Pacific island of Guam. We considered possible factors influencing parasite transmission, and tested for
Authors
Elden T Holldorf, Shane R. Siers, Jonathan Q. Richmond, Page E. Klug, Robert Reed
Testing for multiple invasion routes and source populations for the invasive brown treesnake (Boiga irregularis) on Guam: implications for pest management
The brown treesnake (Boiga irregularis) population on the Pacific island of Guam has reached iconic status as one of the most destructive invasive species of modern times, yet no published works have used genetic data to identify a source population. We used DNA sequence data from multiple genetic markers and coalescent-based phylogenetic methods to place the Guam population within the broader phy
Authors
Jonathan Q. Richmond, Dustin A. Wood, James W. Stanford, Robert N. Fisher
Population declines lead to replicate patterns of internal range structure at the tips of the distribution of the California red-legged frog (Rana draytonii)
Demographic declines and increased isolation of peripheral populations of the threatened California red-legged frog (Rana draytonii) have led to the formation of internal range boundaries at opposite ends of the species’ distribution. While the population genetics of the southern internal boundary has been studied in some detail, similar information is lacking for the northern part of the range. I
Authors
Jonathan Q. Richmond, Adam R. Backlin, Patricia J. Tatarian, Ben G. Solvesky, Robert N. Fisher
Evolutionary dynamics of a rapidly receding southern range boundary in the threatened California red-legged frog (Rana draytonii)
Populations forming the edge of a species range are often imperiled by isolation and low genetic diversity, with proximity to human population centers being a major determinant of edge stability in modern landscapes. Since the 1960s, the California red-legged frog (Rana draytonii) has undergone extensive declines in heavily urbanized southern California, where the range edge has rapidly contracted
Authors
Jonathan Q. Richmond, Kelly R. Barr, Adam R. Backlin, Amy G. Vandergast, Robert N. Fisher
Conserved ontogeny of color pattern leads to the misdiagnosis of Scincid lizards of the Plestiodon skiltonianus species complex
No abstract available.
Authors
Jackson D. Shedd, Jonathan Q. Richmond
Selection, trans-species polymorphism, and locus identification of major histocompatibility complex class IIβ alleles of New World ranid frogs
Genes encoded by the major histocompatibility complex (MHC) play key roles in the vertebrate immune system. However, our understanding of the evolutionary processes and underlying genetic mechanisms shaping these genes is limited in many taxa, including amphibians, a group currently impacted by emerging infectious diseases. To further elucidate the evolution of the MHC in frogs (anurans) and devel
Authors
Karen M. Kiemnec-Tyburczy, Jonathan Q. Richmond, Anna E. Savage, Kelly R. Zamudio
Delayed genetic effects of habitat fragmentation on the ecologically specialized Florida sand skink (Plestiodon reynoldsi)
Populations rarely show immediate genetic responses to habitat fragmentation, even in taxa that possess suites of traits known to increase their vulnerability to extinction. Thus conservation geneticists must consider the time scale over which contemporary evolutionary processes operate to accurately portray the effects of habitat isolation. Here, we examine the genetic impacts of fragmentation on
Authors
Jonathan Q. Richmond, Duncan T. Reid, Kyle G. Ashton, Kelly R. Zamudio
Science and Products
Filter Total Items: 31
Invaded invaders: Infection of invasive Brown Treesnakes on Guam by an exotic larval cestode with a life cycle comprised of non-native hosts
Background
Multiple host introductions to the same non-native environment have the potential to complete life cycles of parasites incidentally transported with them. Our goal was to identify a recently detected parasitic flatworm in the invasive Brown Treesnake (Boiga irregularis) on the remote Pacific island of Guam. We considered possible factors influencing parasite transmission, and tested for
Authors
Elden T Holldorf, Shane R. Siers, Jonathan Q. Richmond, Page E. Klug, Robert Reed
Testing for multiple invasion routes and source populations for the invasive brown treesnake (Boiga irregularis) on Guam: implications for pest management
The brown treesnake (Boiga irregularis) population on the Pacific island of Guam has reached iconic status as one of the most destructive invasive species of modern times, yet no published works have used genetic data to identify a source population. We used DNA sequence data from multiple genetic markers and coalescent-based phylogenetic methods to place the Guam population within the broader phy
Authors
Jonathan Q. Richmond, Dustin A. Wood, James W. Stanford, Robert N. Fisher
Population declines lead to replicate patterns of internal range structure at the tips of the distribution of the California red-legged frog (Rana draytonii)
Demographic declines and increased isolation of peripheral populations of the threatened California red-legged frog (Rana draytonii) have led to the formation of internal range boundaries at opposite ends of the species’ distribution. While the population genetics of the southern internal boundary has been studied in some detail, similar information is lacking for the northern part of the range. I
Authors
Jonathan Q. Richmond, Adam R. Backlin, Patricia J. Tatarian, Ben G. Solvesky, Robert N. Fisher
Evolutionary dynamics of a rapidly receding southern range boundary in the threatened California red-legged frog (Rana draytonii)
Populations forming the edge of a species range are often imperiled by isolation and low genetic diversity, with proximity to human population centers being a major determinant of edge stability in modern landscapes. Since the 1960s, the California red-legged frog (Rana draytonii) has undergone extensive declines in heavily urbanized southern California, where the range edge has rapidly contracted
Authors
Jonathan Q. Richmond, Kelly R. Barr, Adam R. Backlin, Amy G. Vandergast, Robert N. Fisher
Conserved ontogeny of color pattern leads to the misdiagnosis of Scincid lizards of the Plestiodon skiltonianus species complex
No abstract available.
Authors
Jackson D. Shedd, Jonathan Q. Richmond
Selection, trans-species polymorphism, and locus identification of major histocompatibility complex class IIβ alleles of New World ranid frogs
Genes encoded by the major histocompatibility complex (MHC) play key roles in the vertebrate immune system. However, our understanding of the evolutionary processes and underlying genetic mechanisms shaping these genes is limited in many taxa, including amphibians, a group currently impacted by emerging infectious diseases. To further elucidate the evolution of the MHC in frogs (anurans) and devel
Authors
Karen M. Kiemnec-Tyburczy, Jonathan Q. Richmond, Anna E. Savage, Kelly R. Zamudio
Delayed genetic effects of habitat fragmentation on the ecologically specialized Florida sand skink (Plestiodon reynoldsi)
Populations rarely show immediate genetic responses to habitat fragmentation, even in taxa that possess suites of traits known to increase their vulnerability to extinction. Thus conservation geneticists must consider the time scale over which contemporary evolutionary processes operate to accurately portray the effects of habitat isolation. Here, we examine the genetic impacts of fragmentation on
Authors
Jonathan Q. Richmond, Duncan T. Reid, Kyle G. Ashton, Kelly R. Zamudio