A5024671368- Turtle Biology and Conservation
- Amphibian and Reptile Biology
- Wildlife Ecology and Conservation
- Fish Ecology and Management Studies
- Botanical Research and Chemistry
- Species Distribution and Climate Change
- Insect Pest Control Strategies
- Rabies epidemiology and control
- Essential Oils and Antimicrobial Activity
- Wildlife Conservation and Criminology Analyses
University of Oklahoma
2022
Western Ecological Research Center
2021-2022
United States Geological Survey
2021-2022
Oklahoma Biological Survey
2022
The Northwestern Pond Turtle (Actinemys marmorata; WPT) was once widespread throughout the Sacramento Valley and Sacramento-San Joaquin River Delta. Much of its historical range has been converted into agricultural land, reducing altering aquatic habitat surrounding uplands. Red-eared Sliders (Trachemys scripta elegans; RES) have introduced much existing WPT range, particularly near urban centers, potentially competing with for resources. Previous surveys turtles in central California...
First posted November 16, 2017 For additional information, contact: Western Ecological Research Center U.S. Geological Survey 3020 State University Drive East Sacramento, California 95819 Most extant giant gartersnake (Thamnophis gigas) populations persist in an agro-ecosystem dominated by rice, which serves as a surrogate to the expansive marshes lost flood control projects and development of Great Central Valley California. Knowledge how gartersnakes use rice agricultural landscape,...
First posted July 20, 2018 For additional information, contact: Director,Western Ecological Research CenterU.S. Geological Survey 3020 State University Drive East Sacramento, California 95819 The giant gartersnake (Thamnophis gigas) is a semi-aquatic species of snake precinctive to the Central Valley California. Because has experienced substantial loss wetland habitat, populations are largely found in aquatic habitats associated with rice agriculture. In dry years, less water may be...
Durante un estudio de ocupación las tortugas poza occidental (Actinemys marmorata) y orejas rojas (Trachemys scripta elegans) en el valle Sacramento, California, 2018, probamos la eficacia relativa dos tipos cebo: sardinas envasadas aceite soja comida seca para gatos Meow Mix® Original Choice. Muestreamos 116 sitios con 2 trampas cada uno: uno cebado otro gatos. Las fueron 1.7 (intervalo confianza del 95%, 1.2–2.6) veces más efectivas capturar nuestro que gatos, 63% todas capturadas cebadas...
First posted October 26, 2020 For additional information, contact: Director, Western Ecological Research CenterU.S. Geological Survey3020 State University Drive EastSacramento, California 95819 We examined the occurrence of giant gartersnakes in Sacramento–San Joaquin Delta, California, 2018 and 2019. made eight captures seven (three females, four males) 2018, six (four two Detection probabilities were exceedingly low despite using methods that achieve much higher detection rice-growing...
By the mid-20th Century, giant gartersnakes (Thamnophis gigas) had lost more than 90% of their Central Valley marsh habitat and were extirpated from two-thirds range. This massive loss led to inclusion in inaugural list rare species under California Endangered Species Act (CESA). Listing CESA provided legal protection mechanisms for recovery, subsequent listing U.S. (federal ESA) further fortified these protections. But how effective has endangered acts (ESAs) been at achieving goal...