Javan M. Bauder, PhD
Javan joined the Arizona CRU as an Assistant Unit Leader in 2021, where his research blends population ecology and landscape ecology with diverse statistical modeling tools to guide wildlife management and conservation. His current research includes evaluating population viability and genetic connectivity of the federally threatened eastern indigo snake in central Florida.
Javan was born and raised in the Pacific Northwest (Washington and Idaho) and received his M.S. from Idaho State University where he studied the movement and habitat ecology of prairie rattlesnakes. He then worked for non-profit reptile conservation organization, The Orianne Society, conducting and directing research projects to guide reptile conservation efforts. Javan received his Ph.D. from the University of Massachusetts Amherst where he studied the effects of landscape features on the spatial and habitat ecology, population viability, and genetic connectivity of the federally threatened eastern indigo snake in central Florida. Javan then joined the Illinois Natural History Survey as a post-doc studying population dynamics of furbearing mammals and the effects of translocation on nuisance black bear.
Javan joined the Arizona CRU in 2021 where his research blends population ecology and landscape ecology with diverse statistical modeling tools to guide wildlife management and conservation. His current research includes evaluating population viability of bald eagles in Arizona, developing tracking methods for and estimating demographic parameters of narrow-headed gartersnakes, and modeling habitat connectivity and survival for eastern indigo snakes. Javan has assisted in teaching multiple graduate-level statistics courses and teaches a course on wildlife habitat modeling
Professional Experience
Assistant Unit Leader, Arizona Cooperative Fish and Wildlife Research Unit, 2021-
Illinois Natural History Survey
Education and Certifications
PhD, University of Massachusetts Amherst, 2012
MS, Idaho State University, 2007
BS, University of Idaho, 2003
Science and Products
Evaluating growth rates of captive, wild, and reintroduced populations of the imperiled Eastern Indigo Snake (Drymarchon couperi)
Reintroduction of species at sites where populations have been extirpated has become a common technique in wildlife conservation. To track progress towards reintroduction success, effective postrelease monitoring is needed to document vital rates of individuals and the corresponding impact on population trajectories. We assessed growth and body size in Eastern Indigo Snakes (Drymarchon couperi) us
Authors
Houston C. Chandler, David Steen, Jack Blue, James E. Bogan, M. Rebecca Bolt, Tony Brady, David R. Breininger, Jorge Buening, Matt Elliott, James Godwin, Craig Guyer, Robert L. Hill, Michelle Hoffman, Natalie L. Hyslop, Christopher L. Jenkins, Chris Lechowicz, Matt Moore, Robert A. Moulis, Sara Piccolomini, Robert Redmond, Frankie H. Snow, Benjamin S. Stegenga, Dirk J. Stevenson, James Stiles, Sierra Stiles, Mark Wallace, Jimmy Waters, Michael Wines, Javan Mathias Bauder
The effects of estradiol-17β on the sex reversal, survival, and growth of Red Shiner and its use in the development of YY individuals
ObjectiveThe Red Shiner Cyprinella lutrensis is one of the most prolific and ecologically destructive invasive fish species in the southwestern United States. The production and release of YY individuals as Trojan sex chromosome carriers can theoretically eradicate invasive fish populations by eventually eliminating phenotypic females.MethodsThe YY individuals are typically produced through hormon
Authors
Chad N. Teal, Daniel J. Schill, Javan Mathias Bauder, Susan B. Fogelson, Kevin Fitzsimmons, William T. Stewart, Melanie Culver, Scott A. Bonar
Native fish abundance and habitat selection changes in the presence of nonnative piscivores
We compared abundance patterns and developed resource selection models for imperilled native southwestern (USA) fishes in the presence and absence of Black Bass (Micropterus spp.) to evaluate how fishes alter their selection for habitats when sympatric with a nonnative piscivore. We collected data using snorkel surveys and in-stream habitat sampling in Fossil Creek (AZ), upstream (native fish only
Authors
Christopher J. Jenney, Javan Mathias Bauder, Scott A. Bonar
Food caching by a solitary large carnivore reveals importance of intermediate-sized prey
Pumas (Puma concolor) are solitary large carnivores that exhibit high energetic investments while hunting prey that often take multiple days to consume. Therefore, pumas should behave in a way to maximize their energetic gains, including using caching, which is a behavior used by many mammal species to preserve and store food or to conceal it from conspecifics and scavengers to limit their losses.
Authors
Maximilian L. Allen, L. Mark Elbroch, Javan Mathias Bauder, Heiko U. Wittmer
The development of genetic sex identification markers and evidence of a male heterogametic sex determination system in Red Shiner
The Red Shiner Cyprinella lutrensis is of increasing management interest as an invasive species that negatively impacts many native fishes throughout North America. Trojan sex chromosome (TSC)-carrying individuals could theoretically control invasive fish populations by skewing the sex ratio to 100% male. The efficacy of TSC-based control programs requires an understanding of a population's sex de
Authors
Chad N. Teal, D. Katharine Coykendall, Matthew R. Campbell, Thomas A. Delomas, Daniel L. Eardley, John A. Erwin, Daniel J. Schill, Javan Mathias Bauder, Scott A. Bonar, Melanie Culver
The effects of estradiol-17β on the sex reversal, survival, and growth of green sunfish Lepomis cyanellus
The feminization of green sunfish Lepomis cyanellus could expand their utility as a game fish or aquacultured species by preventing overcrowding and precocious reproduction in stocked systems. Feminization of green sunfish could also help elucidate information on their sex determination system. We report the feminization of green sunfish cohorts via oral administration of estradiol-17β (E2) during
Authors
Chad N. Teal, Daniel J. Schill, Susan B. Fogelson, Colby M. Roberts, Kevin Fitzsimmons, Javan Mathias Bauder, William T. Stewart, Scott A. Bonar
Incorporating habitat suitability, landscape distance, and resistant kernels to estimate conservation units for an imperiled terrestrial snake
ContextWildlife distributions are often subdivided into discrete conservation units to aid in implementing management and conservation objectives. Habitat suitability models, resistance surfaces, and resistant kernels provide tools for delineating spatially explicit conservation units but guidelines for parameterizing resistant kernels are generally lacking.ObjectivesWe used the federally threaten
Authors
Javan Mathias Bauder, H. C. Chandler, M. Elmore, C. L. Jenkins
Science and Products
Evaluating growth rates of captive, wild, and reintroduced populations of the imperiled Eastern Indigo Snake (Drymarchon couperi)
Reintroduction of species at sites where populations have been extirpated has become a common technique in wildlife conservation. To track progress towards reintroduction success, effective postrelease monitoring is needed to document vital rates of individuals and the corresponding impact on population trajectories. We assessed growth and body size in Eastern Indigo Snakes (Drymarchon couperi) us
Authors
Houston C. Chandler, David Steen, Jack Blue, James E. Bogan, M. Rebecca Bolt, Tony Brady, David R. Breininger, Jorge Buening, Matt Elliott, James Godwin, Craig Guyer, Robert L. Hill, Michelle Hoffman, Natalie L. Hyslop, Christopher L. Jenkins, Chris Lechowicz, Matt Moore, Robert A. Moulis, Sara Piccolomini, Robert Redmond, Frankie H. Snow, Benjamin S. Stegenga, Dirk J. Stevenson, James Stiles, Sierra Stiles, Mark Wallace, Jimmy Waters, Michael Wines, Javan Mathias Bauder
The effects of estradiol-17β on the sex reversal, survival, and growth of Red Shiner and its use in the development of YY individuals
ObjectiveThe Red Shiner Cyprinella lutrensis is one of the most prolific and ecologically destructive invasive fish species in the southwestern United States. The production and release of YY individuals as Trojan sex chromosome carriers can theoretically eradicate invasive fish populations by eventually eliminating phenotypic females.MethodsThe YY individuals are typically produced through hormon
Authors
Chad N. Teal, Daniel J. Schill, Javan Mathias Bauder, Susan B. Fogelson, Kevin Fitzsimmons, William T. Stewart, Melanie Culver, Scott A. Bonar
Native fish abundance and habitat selection changes in the presence of nonnative piscivores
We compared abundance patterns and developed resource selection models for imperilled native southwestern (USA) fishes in the presence and absence of Black Bass (Micropterus spp.) to evaluate how fishes alter their selection for habitats when sympatric with a nonnative piscivore. We collected data using snorkel surveys and in-stream habitat sampling in Fossil Creek (AZ), upstream (native fish only
Authors
Christopher J. Jenney, Javan Mathias Bauder, Scott A. Bonar
Food caching by a solitary large carnivore reveals importance of intermediate-sized prey
Pumas (Puma concolor) are solitary large carnivores that exhibit high energetic investments while hunting prey that often take multiple days to consume. Therefore, pumas should behave in a way to maximize their energetic gains, including using caching, which is a behavior used by many mammal species to preserve and store food or to conceal it from conspecifics and scavengers to limit their losses.
Authors
Maximilian L. Allen, L. Mark Elbroch, Javan Mathias Bauder, Heiko U. Wittmer
The development of genetic sex identification markers and evidence of a male heterogametic sex determination system in Red Shiner
The Red Shiner Cyprinella lutrensis is of increasing management interest as an invasive species that negatively impacts many native fishes throughout North America. Trojan sex chromosome (TSC)-carrying individuals could theoretically control invasive fish populations by skewing the sex ratio to 100% male. The efficacy of TSC-based control programs requires an understanding of a population's sex de
Authors
Chad N. Teal, D. Katharine Coykendall, Matthew R. Campbell, Thomas A. Delomas, Daniel L. Eardley, John A. Erwin, Daniel J. Schill, Javan Mathias Bauder, Scott A. Bonar, Melanie Culver
The effects of estradiol-17β on the sex reversal, survival, and growth of green sunfish Lepomis cyanellus
The feminization of green sunfish Lepomis cyanellus could expand their utility as a game fish or aquacultured species by preventing overcrowding and precocious reproduction in stocked systems. Feminization of green sunfish could also help elucidate information on their sex determination system. We report the feminization of green sunfish cohorts via oral administration of estradiol-17β (E2) during
Authors
Chad N. Teal, Daniel J. Schill, Susan B. Fogelson, Colby M. Roberts, Kevin Fitzsimmons, Javan Mathias Bauder, William T. Stewart, Scott A. Bonar
Incorporating habitat suitability, landscape distance, and resistant kernels to estimate conservation units for an imperiled terrestrial snake
ContextWildlife distributions are often subdivided into discrete conservation units to aid in implementing management and conservation objectives. Habitat suitability models, resistance surfaces, and resistant kernels provide tools for delineating spatially explicit conservation units but guidelines for parameterizing resistant kernels are generally lacking.ObjectivesWe used the federally threaten
Authors
Javan Mathias Bauder, H. C. Chandler, M. Elmore, C. L. Jenkins