Charles Drost
Charles Drost's work focuses on biological inventory studies and on the population status, population dynamics, and population genetics of a wide variety of animal species.
Most of this work has been on threatened or rare species on lands managed by Federal agencies in the southwest U.S., including the southern California Channel Islands and on National Park lands in California, Arizona, New Mexico, and Utah. Many of the concerns of conservation and land management are focused on the population status, habitat relationships and, ultimately, long-term protection and restoration of plant and animal species. Charles Drost works on biological inventory studies and on the population status, population dynamics, and population genetics of a wide variety of animal species. Most of these studies are on threatened or rare species on lands managed by Federal agencies. Inventory studies have covered the southern California Channel Islands, National Park lands in the Southwest, and the southwestern states as a whole, as part of the National GAP program. Current studies include:
- Amphibian populations and amphibian declines, particularly the northern leopard frog, in the U.S. Southwest.
- Population ecology and population trends of the island night lizard on the California Channel Islands.
- Inventories, population status and distribution, and habitat relationships of rare land snails in the southern California coastal region and offshore islands.
Science and Products
Filter Total Items: 45
Landscape-scale wildlife species richness metrics to inform wind and solar energy facility siting: An Arizona case study
The juxtaposition of wildlife and wind or solar energy facility infrastructure can present problems for developers, planners, policy makers, and management agencies. Guidance on siting of these renewable energy facilities may help identify potential wildlife-facility conflicts with species of regulatory or economic concern. However, existing spatial guidance usually does not consider all wildlife
Authors
Kathryn A. Thomas, Christopher Jarchow, Terence R. Arundel, Pankaj Jamwal, Amanda Borens, Charles A. Drost
A phylogenetic overview of the genus Vertigo O. F. Müller, 1773 (Gastropoda: Pulmonata: Pupillidae: Vertigininae)
We document global phylogenetic pattern in the pupillid land snail genus Vertigo by analyses of nDNA (ITS1 and ITS2) and mtDNA (CytB and 16S) sequence from 424 individuals representing 91 putative specific and subspecific Vertigo taxa. nDNA and mtDNA data were separately subjected to neighbor-joining, minimum evolution, maximum likelihood and Bayesian reconstruction methods, with conclusions being
Authors
Jeffrey C. Nekola, Satoshi Chiba, Brian F. Coles, Charles A. Drost, Ted von Proschwitz, Michal Horsák
Rare long-distance dispersal of the Island Night Lizard, Xantusia riversiana, maintains high diversity in a fragmented environment
The Island Night Lizard (Xantusia riversiana) is endemic to three of the Channel Islands off the coast of California, USA. Introduced species such as goats, sheep, and cats have profoundly affected the fauna and flora of the islands for over 150 years, but most of these non-native species have been recently removed. We measured the distribution of genetic diversity in Island Night Lizards across S
Authors
Ryan P. O'Donnell, Charles A. Drost, Gary M. Fellers, Benjamin A. Crabb, Karen E. Mock
Diet patterns of island foxes on San Nicolas Island relative to feral cat removal
Island foxes (Urocyon littoralis) are a species of conservation concern that occur on six of the Channel Islands off the coast of southern California. We analysed island fox diet on San Nicolas Island during 2006–12 to assess the influence of the removal of feral cats (Felis catus) on the food use by foxes. Our objective was to determine whether fox diet patterns shifted in response to the cat rem
Authors
Brian L. Cypher, Erica C. Kelly, Francesca J. Ferrara, Charles A. Drost, Tory L. Westall, Brian Hudgens
Cryptic invasion of Northern Leopard Frogs (Rana pipiens) across phylogeographic boundaries and a dilemma for conservation of a declining amphibian
Anthropogenic introduction of species is a major contributor to loss of biodiversity. Translocations within the range of a species are less frequently recognized, but have the potential for negative effects as well. Genetic mixing may lead to loss of local adaptations or further decline through outbreeding depression. These cryptic invasions may be quite difficult to recognize, but genetic tools c
Authors
Ryan P. O'Donnell, Charles A. Drost, Karen E. Mock
A quarter century of research on the Colorado Plateau: A compilation of the Colorado Plateau Biennial Conference Proceedings for 1993-2015
This Open-File Report is a compilation of the work published in the Colorado Plateau Biennial Conference book series over the span of the past nearly quarter century (conferences held between 1991–2011). The primary focus of the conferences has been to work toward integrating new science findings into management of the region’s natural and cultural resources. This conference and book series has be
Authors
Charles van Riper, Charles A. Drost, S. Shane Selleck
Exposure pathways and biological receptors: baseline data for the canyon uranium mine, Coconino County, Arizona
Recent restrictions on uranium mining within the Grand Canyon watershed have drawn attention to scientific data gaps in evaluating the possible effects of ore extraction to human populations as well as wildlife communities in the area. Tissue contaminant concentrations, one of the most basic data requirements to determine exposure, are not available for biota from any historical or active uranium
Authors
Jo Ellen Hinck, Greg L. Linder, Abigail J. Darrah, Charles A. Drost, Michael C. Duniway, Matthew J. Johnson, Francisca M. Méndez-Harclerode, Erika M. Nowak, Ernest W. Valdez, Charles van Riper, S.W. Wolff
Traditional cultural use as a tool for inferring biogeography and provenance: a case study involving painted turtles (Chrysemys picta) and Hopi Native American culture in Arizona, USA
Inferring the natural distribution and native status of organisms is complicated by the role of ancient and modern humans in utilization and translocation. Archaeological data and traditional cultural use provide tools for resolving these issues. Although the painted turtle (Chrysemys picta) has a transcontinental range in the United States, populations in the Desert Southwest are scattered and is
Authors
Jeffrey E. Lovich, Charles T. LaRue, Charles A. Drost, Terence R. Arundel
Development and characterization of 12 microsatellite markers for the Island Night Lizard (Xantusia riversiana), a threatened species endemic to the Channel Islands, California, USA
The Island Night Lizard is a federally threatened species endemic to the Channel Islands of California. Twelve microsatellite loci were developed for use in this species and screened in 197 individuals from across San Nicolas Island, California. The number of alleles per locus ranged from 6 to 21. Observed heterozygosities ranged from 0.520 to 0.843. These microsatellite loci will be used to inves
Authors
Ryan P. O'Donnell, Charles A. Drost, Karen E. Mock
Optimal egg size in a suboptimal environment: reproductive ecology of female Sonora mud turtles (Kinosternon sonoriense) in central Arizona, USA
We studied the reproductive ecology of female Sonora mud turtles (Kinosternon sonoriense) at Montezuma Well, a chemically-challenging natural wetland in central Arizona, USA. Females matured between 115.5 and 125 mm carapace length (CL) and 36-54% produced eggs each year. Eggs were detected in X-radiographs from 23 April-28 September (2007-2008) and the highest proportion (56%) of adult females wi
Authors
Jeffrey E. Lovich, Sheila V. Madrak, Charles A. Drost, Anthony J. Monatesti, Dennis Casper, Mohammed Znari
Population status and population genetics of northern leopard frogs in Arizona
Increasing isolation of populations by habitat fragmentation threatens the persistence of many species, both from stochastic loss of small isolated populations, and from inbreeding effects in populations that have become genetically isolated. In the southwestern United States, amphibian habitat is naturally patchy in occurrence because of the prevailing aridity of the region. Streams, rivers, and
Authors
Tad C. Theimer, Charles A. Drost, Ryan P. O'Donnell, Karen E. Mock
Removal of nonnative slider turtles (Trachemys scripta) and effects on native Sonora mud turtles (Kinosternon sonoriense) at Montezuma Well, Yavapai County, Arizona
The National Park Service (NPS) estimates that 234 national parks contain nonnative, invasive animal species that are of management concern (National Park Service, 2004). Understanding and controlling invasive species is thus an important priority within the NPS (National Park Service, 1996). The slider turtle (Trachemys scripta) is one such invasive species. Native to the Southeastern United Stat
Authors
Charles A. Drost, Jeffrey E. Lovich, Sheila V. Madrak, A.J. Monatesti
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Filter Total Items: 45
Landscape-scale wildlife species richness metrics to inform wind and solar energy facility siting: An Arizona case study
The juxtaposition of wildlife and wind or solar energy facility infrastructure can present problems for developers, planners, policy makers, and management agencies. Guidance on siting of these renewable energy facilities may help identify potential wildlife-facility conflicts with species of regulatory or economic concern. However, existing spatial guidance usually does not consider all wildlifeAuthorsKathryn A. Thomas, Christopher Jarchow, Terence R. Arundel, Pankaj Jamwal, Amanda Borens, Charles A. DrostA phylogenetic overview of the genus Vertigo O. F. Müller, 1773 (Gastropoda: Pulmonata: Pupillidae: Vertigininae)
We document global phylogenetic pattern in the pupillid land snail genus Vertigo by analyses of nDNA (ITS1 and ITS2) and mtDNA (CytB and 16S) sequence from 424 individuals representing 91 putative specific and subspecific Vertigo taxa. nDNA and mtDNA data were separately subjected to neighbor-joining, minimum evolution, maximum likelihood and Bayesian reconstruction methods, with conclusions beingAuthorsJeffrey C. Nekola, Satoshi Chiba, Brian F. Coles, Charles A. Drost, Ted von Proschwitz, Michal HorsákRare long-distance dispersal of the Island Night Lizard, Xantusia riversiana, maintains high diversity in a fragmented environment
The Island Night Lizard (Xantusia riversiana) is endemic to three of the Channel Islands off the coast of California, USA. Introduced species such as goats, sheep, and cats have profoundly affected the fauna and flora of the islands for over 150 years, but most of these non-native species have been recently removed. We measured the distribution of genetic diversity in Island Night Lizards across SAuthorsRyan P. O'Donnell, Charles A. Drost, Gary M. Fellers, Benjamin A. Crabb, Karen E. MockDiet patterns of island foxes on San Nicolas Island relative to feral cat removal
Island foxes (Urocyon littoralis) are a species of conservation concern that occur on six of the Channel Islands off the coast of southern California. We analysed island fox diet on San Nicolas Island during 2006–12 to assess the influence of the removal of feral cats (Felis catus) on the food use by foxes. Our objective was to determine whether fox diet patterns shifted in response to the cat remAuthorsBrian L. Cypher, Erica C. Kelly, Francesca J. Ferrara, Charles A. Drost, Tory L. Westall, Brian HudgensCryptic invasion of Northern Leopard Frogs (Rana pipiens) across phylogeographic boundaries and a dilemma for conservation of a declining amphibian
Anthropogenic introduction of species is a major contributor to loss of biodiversity. Translocations within the range of a species are less frequently recognized, but have the potential for negative effects as well. Genetic mixing may lead to loss of local adaptations or further decline through outbreeding depression. These cryptic invasions may be quite difficult to recognize, but genetic tools cAuthorsRyan P. O'Donnell, Charles A. Drost, Karen E. MockA quarter century of research on the Colorado Plateau: A compilation of the Colorado Plateau Biennial Conference Proceedings for 1993-2015
This Open-File Report is a compilation of the work published in the Colorado Plateau Biennial Conference book series over the span of the past nearly quarter century (conferences held between 1991–2011). The primary focus of the conferences has been to work toward integrating new science findings into management of the region’s natural and cultural resources. This conference and book series has beAuthorsCharles van Riper, Charles A. Drost, S. Shane SelleckExposure pathways and biological receptors: baseline data for the canyon uranium mine, Coconino County, Arizona
Recent restrictions on uranium mining within the Grand Canyon watershed have drawn attention to scientific data gaps in evaluating the possible effects of ore extraction to human populations as well as wildlife communities in the area. Tissue contaminant concentrations, one of the most basic data requirements to determine exposure, are not available for biota from any historical or active uraniumAuthorsJo Ellen Hinck, Greg L. Linder, Abigail J. Darrah, Charles A. Drost, Michael C. Duniway, Matthew J. Johnson, Francisca M. Méndez-Harclerode, Erika M. Nowak, Ernest W. Valdez, Charles van Riper, S.W. WolffTraditional cultural use as a tool for inferring biogeography and provenance: a case study involving painted turtles (Chrysemys picta) and Hopi Native American culture in Arizona, USA
Inferring the natural distribution and native status of organisms is complicated by the role of ancient and modern humans in utilization and translocation. Archaeological data and traditional cultural use provide tools for resolving these issues. Although the painted turtle (Chrysemys picta) has a transcontinental range in the United States, populations in the Desert Southwest are scattered and isAuthorsJeffrey E. Lovich, Charles T. LaRue, Charles A. Drost, Terence R. ArundelDevelopment and characterization of 12 microsatellite markers for the Island Night Lizard (Xantusia riversiana), a threatened species endemic to the Channel Islands, California, USA
The Island Night Lizard is a federally threatened species endemic to the Channel Islands of California. Twelve microsatellite loci were developed for use in this species and screened in 197 individuals from across San Nicolas Island, California. The number of alleles per locus ranged from 6 to 21. Observed heterozygosities ranged from 0.520 to 0.843. These microsatellite loci will be used to invesAuthorsRyan P. O'Donnell, Charles A. Drost, Karen E. MockOptimal egg size in a suboptimal environment: reproductive ecology of female Sonora mud turtles (Kinosternon sonoriense) in central Arizona, USA
We studied the reproductive ecology of female Sonora mud turtles (Kinosternon sonoriense) at Montezuma Well, a chemically-challenging natural wetland in central Arizona, USA. Females matured between 115.5 and 125 mm carapace length (CL) and 36-54% produced eggs each year. Eggs were detected in X-radiographs from 23 April-28 September (2007-2008) and the highest proportion (56%) of adult females wiAuthorsJeffrey E. Lovich, Sheila V. Madrak, Charles A. Drost, Anthony J. Monatesti, Dennis Casper, Mohammed ZnariPopulation status and population genetics of northern leopard frogs in Arizona
Increasing isolation of populations by habitat fragmentation threatens the persistence of many species, both from stochastic loss of small isolated populations, and from inbreeding effects in populations that have become genetically isolated. In the southwestern United States, amphibian habitat is naturally patchy in occurrence because of the prevailing aridity of the region. Streams, rivers, andAuthorsTad C. Theimer, Charles A. Drost, Ryan P. O'Donnell, Karen E. MockRemoval of nonnative slider turtles (Trachemys scripta) and effects on native Sonora mud turtles (Kinosternon sonoriense) at Montezuma Well, Yavapai County, Arizona
The National Park Service (NPS) estimates that 234 national parks contain nonnative, invasive animal species that are of management concern (National Park Service, 2004). Understanding and controlling invasive species is thus an important priority within the NPS (National Park Service, 1996). The slider turtle (Trachemys scripta) is one such invasive species. Native to the Southeastern United StatAuthorsCharles A. Drost, Jeffrey E. Lovich, Sheila V. Madrak, A.J. Monatesti