Terry Arundel (Former Employee)
Science and Products
Filter Total Items: 24
Reproductive output and clutch phenology of female Agassiz's desert tortoises (Gopherus agassizii) in the Sonoran Desert region of Joshua Tree National Park Reproductive output and clutch phenology of female Agassiz's desert tortoises (Gopherus agassizii) in the Sonoran Desert region of Joshua Tree National Park
Agassiz's desert tortoise (Gopherus agassizii) reaches the southern edge of its range in the Sonoran Desert of California. The reproductive ecology of this wideranging species is understudied here compared to populations in the adjacent Mojave Desert. Understanding potential geographic variation in reproductive ecology is important for effective management of conservation-reliant species...
Authors
Jeffrey E. Lovich, Shellie R. Puffer, Mickey Agha, Joshua R. Ennen, Kathie Meyer-Wilkins, Laura A. Tennant, Amanda L Smith, Terence R. Arundel, Kathleen D. Brundige, Michael S. Vamstad
Quantifying animal movement for caching foragers: the path identification index (PII) and cougars, Puma concolor Quantifying animal movement for caching foragers: the path identification index (PII) and cougars, Puma concolor
Relocation studies of animal movement have focused on directed versus area restricted movement, which rely on correlations between step-length and turn angles, along with a degree of stationarity through time to define behavioral states. Although these approaches may work well for grazing foraging strategies in a patchy landscape, species that do not spend a significant amount of time...
Authors
Kirsten E. Ironside, David J. Mattson, Tad Theimer, Brian Jansen, Brandon Holton, Terence R. Arundel, Michael Peters, Joseph O. Sexton, Thomas C. Edwards
Mammalian mesocarnivore visitation at tortoise burrows in a wind farm Mammalian mesocarnivore visitation at tortoise burrows in a wind farm
There is little information on predator–prey interactions in wind energy landscapes in North America, especially among terrestrial vertebrates. Here, we evaluated how proximity to roads and wind turbines affect mesocarnivore visitation with desert tortoises (Gopherus agassizii) and their burrows in a wind energy landscape. In 2013, we placed motion-sensor cameras facing the entrances of...
Authors
Mickey Agha, Amanda L. Smith, Jeffrey E. Lovich, David F. Delaney, Joshua R. Ennen, Jessica R. Briggs, Leo J. Fleckenstein, Laura A. Tennant, Shellie R. Puffer, Andrew D. Walde, Terence R. Arundel, Steven J. Price, Brian D. Todd
Is GPS telemetry location error screening beneficial? Is GPS telemetry location error screening beneficial?
The accuracy of global positioning system (GPS) locations obtained from study animals tagged with GPS monitoring devices has been a concern as to the degree it influences assessments of movement patterns, space use, and resource selection estimates. Many methods have been proposed for screening data to retain the most accurate positions for analysis, based on dilution of precision (DOP)...
Authors
Kirsten E. Ironside, David J. Mattson, Terence R. Arundel, Jered R. Hansen
Variable terrestrial GPS telemetry detection rates: Addressing the probability of successful acquisitions Variable terrestrial GPS telemetry detection rates: Addressing the probability of successful acquisitions
Studies using global positioning system (GPS) telemetry rarely result in 100% fix success rates (FSR), which may bias datasets because data loss is systematic rather than a random process. Previous spatially explicit models developed to correct for sampling bias have been limited to small study areas, a small range of data loss, or were study-area specific. We modeled environmental...
Authors
Kirsten E. Ironside, David J. Mattson, David Choate, David Stoner, Terence R. Arundel, Jered R. Hansen, Tad Theimer, Brandon Holton, Brian Jansen, Joseph O. Sexton, Kathleen M. Longshore, Thomas C. Edwards, Michael Peters
A potential predator-prey interaction of an American badger and an Agassiz's desert tortoise with a review of badger predation on turtles A potential predator-prey interaction of an American badger and an Agassiz's desert tortoise with a review of badger predation on turtles
The federally threatened Agassiz’s desert tortoise (Gopherus agassizii) was listed under the U.S. Endangered Species Act in 1990, but thus far, recovery efforts have been unsuccessful (U.S. Fish and Wildlife Service [USFWS] 2015). Predation has been identified as a contributing factor to declining G. agassizii populations range-wide (e.g., Esque et al. 2010, Lovich et al. 2014)...
Authors
Amanda L. Smith, Shellie R. Puffer, Jeffrey E. Lovich, Laura A. Tennant, Terence R. Arundel, Michael S. Vamstad, Kathleen D. Brundige
Science and Products
Filter Total Items: 24
Reproductive output and clutch phenology of female Agassiz's desert tortoises (Gopherus agassizii) in the Sonoran Desert region of Joshua Tree National Park Reproductive output and clutch phenology of female Agassiz's desert tortoises (Gopherus agassizii) in the Sonoran Desert region of Joshua Tree National Park
Agassiz's desert tortoise (Gopherus agassizii) reaches the southern edge of its range in the Sonoran Desert of California. The reproductive ecology of this wideranging species is understudied here compared to populations in the adjacent Mojave Desert. Understanding potential geographic variation in reproductive ecology is important for effective management of conservation-reliant species...
Authors
Jeffrey E. Lovich, Shellie R. Puffer, Mickey Agha, Joshua R. Ennen, Kathie Meyer-Wilkins, Laura A. Tennant, Amanda L Smith, Terence R. Arundel, Kathleen D. Brundige, Michael S. Vamstad
Quantifying animal movement for caching foragers: the path identification index (PII) and cougars, Puma concolor Quantifying animal movement for caching foragers: the path identification index (PII) and cougars, Puma concolor
Relocation studies of animal movement have focused on directed versus area restricted movement, which rely on correlations between step-length and turn angles, along with a degree of stationarity through time to define behavioral states. Although these approaches may work well for grazing foraging strategies in a patchy landscape, species that do not spend a significant amount of time...
Authors
Kirsten E. Ironside, David J. Mattson, Tad Theimer, Brian Jansen, Brandon Holton, Terence R. Arundel, Michael Peters, Joseph O. Sexton, Thomas C. Edwards
Mammalian mesocarnivore visitation at tortoise burrows in a wind farm Mammalian mesocarnivore visitation at tortoise burrows in a wind farm
There is little information on predator–prey interactions in wind energy landscapes in North America, especially among terrestrial vertebrates. Here, we evaluated how proximity to roads and wind turbines affect mesocarnivore visitation with desert tortoises (Gopherus agassizii) and their burrows in a wind energy landscape. In 2013, we placed motion-sensor cameras facing the entrances of...
Authors
Mickey Agha, Amanda L. Smith, Jeffrey E. Lovich, David F. Delaney, Joshua R. Ennen, Jessica R. Briggs, Leo J. Fleckenstein, Laura A. Tennant, Shellie R. Puffer, Andrew D. Walde, Terence R. Arundel, Steven J. Price, Brian D. Todd
Is GPS telemetry location error screening beneficial? Is GPS telemetry location error screening beneficial?
The accuracy of global positioning system (GPS) locations obtained from study animals tagged with GPS monitoring devices has been a concern as to the degree it influences assessments of movement patterns, space use, and resource selection estimates. Many methods have been proposed for screening data to retain the most accurate positions for analysis, based on dilution of precision (DOP)...
Authors
Kirsten E. Ironside, David J. Mattson, Terence R. Arundel, Jered R. Hansen
Variable terrestrial GPS telemetry detection rates: Addressing the probability of successful acquisitions Variable terrestrial GPS telemetry detection rates: Addressing the probability of successful acquisitions
Studies using global positioning system (GPS) telemetry rarely result in 100% fix success rates (FSR), which may bias datasets because data loss is systematic rather than a random process. Previous spatially explicit models developed to correct for sampling bias have been limited to small study areas, a small range of data loss, or were study-area specific. We modeled environmental...
Authors
Kirsten E. Ironside, David J. Mattson, David Choate, David Stoner, Terence R. Arundel, Jered R. Hansen, Tad Theimer, Brandon Holton, Brian Jansen, Joseph O. Sexton, Kathleen M. Longshore, Thomas C. Edwards, Michael Peters
A potential predator-prey interaction of an American badger and an Agassiz's desert tortoise with a review of badger predation on turtles A potential predator-prey interaction of an American badger and an Agassiz's desert tortoise with a review of badger predation on turtles
The federally threatened Agassiz’s desert tortoise (Gopherus agassizii) was listed under the U.S. Endangered Species Act in 1990, but thus far, recovery efforts have been unsuccessful (U.S. Fish and Wildlife Service [USFWS] 2015). Predation has been identified as a contributing factor to declining G. agassizii populations range-wide (e.g., Esque et al. 2010, Lovich et al. 2014)...
Authors
Amanda L. Smith, Shellie R. Puffer, Jeffrey E. Lovich, Laura A. Tennant, Terence R. Arundel, Michael S. Vamstad, Kathleen D. Brundige