Relevant bibliographies by topics / Desert tortoise

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  2. Dissertations / Theses
  3. Books
  4. Book chapters
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Academic literature on the topic 'Desert tortoise'

Author: Grafiati
Published: 4 June 2021
Last updated: 27 July 2024

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Journal articles on the topic "Desert tortoise"

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Carter, SK, KE Nussear, TC Esque, IIF Leinwand, E. Masters, RD Inman, NB Carr, and LJ Allison. "Quantifying development to inform management of Mojave and Sonoran desert tortoise habitat in the American southwest." Endangered Species Research 42 (August 6, 2020): 167–84. http://dx.doi.org/10.3354/esr01045.

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Two tortoise species native to the American southwest have experienced significant habitat loss from development and are vulnerable to ongoing threats associated with continued development. Mojave desert tortoises Gopherus agassizii are listed as threatened under the US Endangered Species Act, and Sonoran desert tortoises G. morafkai are protected in Arizona (USA) and Mexico. Substantial habitat for both species occurs on multiple-use public lands, where development associated with traditional and renewable energy production, recreation, and other activities is likely to continue. Our goal was to quantify development to inform and evaluate actions implemented to protect and manage desert tortoise habitat. We quantified a landscape-level index of development across the Mojave and Sonoran desert tortoise ranges using models of potential habitat for each species (152485 total observations). We used 13 years of Mojave desert tortoise monitoring data (4732 observations) to inform the levels and spatial scales at which tortoises may be affected by development. Most (66-70%) desert tortoise habitat has some development within 1 km. Development levels on desert tortoise habitat are lower inside versus outside areas protected by actions at national, state, and local levels, suggesting that protection efforts may be having the desired effects and providing a needed baseline for future effectiveness evaluations. Of the relatively undeveloped desert tortoise habitat, 43% (74030 km2) occurs outside of existing protections. These lands are managed by multiple federal, state, and local entities and private landowners, and may provide opportunities for future land acquisition or protection, including as mitigation for energy development on public lands.
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Cypher, Brian L., Erica C. Kelly, Tory L. Westall, and Christine L. Van Horn Job. "Coyote diet patterns in the Mojave Desert: implications for threatened desert tortoises." Pacific Conservation Biology 24, no. 1 (2018): 44. http://dx.doi.org/10.1071/pc17039.

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Coyotes (Canis latrans) are generalist predators and are ubiquitous in North America. Occasionally, predation by coyotes can pose a threat to populations of rare species. We assessed diet patterns of coyotes over a 5-year period (2009–14) in a region of the Mojave Desert where high predation rates on threatened desert tortoises (Gopherus agassizii) had been reported. Our goal was to identify primary food items for coyotes and to assess the importance of desert tortoises in the diet. Coyotes primarily consumed rabbits and rodents with rabbits being consumed preferentially and rodents, along with secondary foods including various birds, reptiles, arthropods, and fruits, being consumed more opportunistically. In response to low annual precipitation in the last three years of the study, dietary diversity increased, as did use of anthropogenic food items by coyotes. However, coyotes did not seem to be dependent upon anthropogenic items. Remains of desert tortoises occurred in coyote scats at low frequencies (<6%) in all years and seasons, and use of tortoises appeared to be opportunistic as use varied with tortoise abundance. In the portion of the study area where 571 translocated desert tortoises had been released in 2008, the frequencies of tortoise remains in coyote scats were markedly higher in the two years following the releases (7.5% and 8.8%, respectively). The high predation rates on tortoises reported in this area may have resulted from focussed coyote foraging efforts due to the availability of vulnerable individuals (e.g. disoriented and displaced tortoises) as well as higher tortoise densities.
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Abella, Scott R., and Kristin H. Berry. "Enhancing and Restoring Habitat for the Desert Tortoise." Journal of Fish and Wildlife Management 7, no. 1 (March 1, 2016): 255–79. http://dx.doi.org/10.3996/052015-jfwm-046.

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AbstractHabitat has changed unfavorably during the past 150 y for the desert tortoise Gopherus agassizii, a federally threatened species with declining populations in the Mojave Desert and western Sonoran Desert. To support recovery efforts, we synthesized published information on relationships of desert tortoises with three habitat features (cover sites, forage, and soil) and candidate management practices for improving these features for tortoises. In addition to their role in soil health and facilitating recruitment of annual forage plants, shrubs are used by desert tortoises for cover and as sites for burrows. Outplanting greenhouse-grown seedlings, protected from herbivory, has successfully restored (&gt;50% survival) a variety of shrubs on disturbed desert soils. Additionally, salvaging and reapplying topsoil using effective techniques is among the more ecologically beneficial ways to initiate plant recovery after severe disturbance. Through differences in biochemical composition and digestibility, some plant species provide better-quality forage than others. Desert tortoises selectively forage on particular annual and herbaceous perennial species (e.g., legumes), and forage selection shifts during the year as different plants grow or mature. Nonnative grasses provide low-quality forage and contribute fuel to spreading wildfires, which damage or kill shrubs that tortoises use for cover. Maintaining a diverse “menu” of native annual forbs and decreasing nonnative grasses are priorities for restoring most desert tortoise habitats. Reducing herbivory by nonnative animals, carefully timing herbicide applications, and strategically augmenting annual forage plants via seeding show promise for improving tortoise forage quality. Roads, another disturbance, negatively affect habitat in numerous ways (e.g., compacting soil, altering hydrology). Techniques such as recontouring road berms to reestablish drainage patterns, vertical mulching (“planting” dead plant material), and creating barriers to prevent trespasses can assist natural recovery on decommissioned backcountry roads. Most habitat enhancement efforts to date have focused on only one factor at a time (e.g., providing fencing) and have not included proactive restoration activities (e.g., planting native species on disturbed soils). A research and management priority in recovering desert tortoise habitats is implementing an integrated set of restorative habitat enhancements (e.g., reducing nonnative plants, improving forage quality, augmenting native perennial plants, and ameliorating altered hydrology) and monitoring short- and long-term indicators of habitat condition and the responses of desert tortoises to habitat restoration.
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Agha, Mickey, Mason O. Murphy, Jeffrey E. Lovich, Joshua R. Ennen, Christian R. Oldham, Kathie Meyer, Curtis Bjurlin, et al. "The effect of research activities and winter precipitation on voiding behaviour of Agassiz’s desert tortoises (Gopherus agassizii)." Wildlife Research 41, no. 8 (2014): 641. http://dx.doi.org/10.1071/wr14196.

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Context There is little information available on how research activities might cause stress responses in wildlife, especially responses of threatened species such as the desert tortoise (Gopherus agassizii). Aims The present study aims to detect behavioural effects of researcher handling and winter precipitation on a natural population of desert tortoises in the desert of Southwestern United States, over the period 1997 to 2014, through extensive assessments of capture events during multiple research studies, and capture–mark–recapture survivorship analysis. Methods Juvenile and adult desert tortoises were repeatedly handled with consistent methodology across 18 years during 10 study seasons. Using a generalised linear mixed-effects model, we assessed the effects of both research manipulation and abiotic conditions on probability of voiding. Additionally, we used a Cormack–Jolly–Seber model to assess the effects of winter precipitation and voiding on long-term apparent survivorship. Key results Of 1008 total capture events, voiding was recorded on 83 (8.2%) occasions in 42 different individuals. Our top models indicated that increases in handling time led to significantly higher probabilities of voiding for juveniles, females and males. Similarly, increases in precipitation resulted in significantly higher probabilities of voiding for juveniles and females, but not for males. Tortoise capture frequency was negatively correlated with voiding occurrence. Cormack–Jolly–Seber models demonstrated a weak effect of winter precipitation on survivorship, but a negligible effect for both voiding behaviour and sex. Conclusions Handling-induced voiding by desert tortoises may occur during common research activities and years of above average winter precipitation. Increased likelihood of voiding in individuals with relatively low numbers of recaptures suggested that tortoises may have perceived researchers initially as predators, and therefore voided as a defensive strategy. Voiding does not appear to impact long-term survivorship in desert tortoises at this site. Implications This study has demonstrated that common handling practices on desert tortoise may cause voiding behaviour. These results suggest that in order to minimise undesirable behavioural responses in studied desert tortoise populations, defined procedures or protocols must be followed by the investigators to reduce contact period to the extent feasible.
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Orton, Joseph P., Matheo Morales, Rafaela S. Fontenele, Kara Schmidlin, Simona Kraberger, Daniel J. Leavitt, Timothy H. Webster, et al. "Virus Discovery in Desert Tortoise Fecal Samples: Novel Circular Single-Stranded DNA Viruses." Viruses 12, no. 2 (January 26, 2020): 143. http://dx.doi.org/10.3390/v12020143.

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The Sonoran Desert tortoise Gopherus morafkai is adapted to the desert, and plays an important ecological role in this environment. There is limited information on the viral diversity associated with tortoises (family Testudinidae), and to date no DNA virus has been identified associated with these animals. This study aimed to assess the diversity of DNA viruses associated with the Sonoran Desert tortoise by sampling their fecal matter. A viral metagenomics approach was used to identify the DNA viruses in fecal samples from wild Sonoran Desert tortoises in Arizona, USA. In total, 156 novel single-stranded DNA viruses were identified from 40 fecal samples. Those belonged to two known viral families, the Genomoviridae (n = 27) and Microviridae (n = 119). In addition, 10 genomes were recovered that belong to the unclassified group of circular-replication associated protein encoding single-stranded (CRESS) DNA virus and five circular molecules encoding viral-like proteins.
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Brown, M. B., G. S. McLaughlin, P. A. Klein, B. C. Crenshaw, I. M. Schumacher, D. R. Brown, and E. R. Jacobson. "Upper Respiratory Tract Disease in the Gopher Tortoise Is Caused by Mycoplasma agassizii †." Journal of Clinical Microbiology 37, no. 7 (1999): 2262–69. http://dx.doi.org/10.1128/jcm.37.7.2262-2269.1999.

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Upper respiratory tract disease (URTD) has been observed in a number of tortoise species, including the desert tortoise (Gopherus agassizii) and the gopher tortoise (Gopherus polyphemus). Clinical signs of URTD in gopher tortoises are similar to those in desert tortoises and include serous, mucoid, or purulent discharge from the nares, excessive tearing to purulent ocular discharge, conjunctivitis, and edema of the eyelids and ocular glands. The objectives of the present study were to determine ifMycoplasma agassizii was an etiologic agent of URTD in the gopher tortoise and to determine the clinical course of the experimental infection in a dose-response infection study. Tortoises were inoculated intranasally with 0.5 ml (0.25 ml/nostril) of either sterile SP4 broth (control group; n = 10) or 108 color-changing units (CCU) (total dose) of M. agassizii 723 (experimental infection group;n = 9). M. agassizii caused clinical signs compatible with those observed in tortoises with natural infections. Clinical signs of URTD were evident in seven of nine experimentally infected tortoises by 4 weeks postinfection (p.i.) and in eight of nine experimentally infected tortoises by 8 weeks p.i. In the dose-response experiments, tortoises were inoculated intranasally with a low (101 CCU;n = 6), medium (103 CCU;n = 6), or high (105 CCU;n = 5) dose of M. agassizii 723 or with sterile SP4 broth (n = 10). At all time points p.i. in both experiments, M. agassizii could be isolated from the nares of at least 50% of the tortoises. All of the experimentally infected tortoises seroconverted, and levels of antibody were statistically higher in infected animals than in control animals for all time points of >4 weeks p.i. (P < 0.0001). Control tortoises in both experiments did not show clinical signs, did not seroconvert, and did not have detectableM. agassizii by either culture or PCR at any point in the study. Histological lesions were compatible with those observed in tortoises with natural infections. The numbers of M. agassizii 723 did not influence the clinical expression of URTD or the antibody response, suggesting that the strain chosen for these studies was highly virulent. On the basis of the results of the transmission studies, we conclude that M. agassizii is an etiologic agent of URTD in the gopher tortoise.
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Abella, Scott R., Lindsay P. Chiquoine, E. Cayenne Engel, Katherine E. Kleinick, and Fred S. Edwards. "Enhancing Quality of Desert Tortoise Habitat: Augmenting Native Forage and Cover Plants." Journal of Fish and Wildlife Management 6, no. 2 (May 1, 2015): 278–89. http://dx.doi.org/10.3996/022015-jfwm-013.

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Abstract Vegetation in habitat of the federally listed desert tortoise Gopherus agassizii in the Mojave and western Sonoran Desert is now partly or mostly dominated by nonnative annual plants. To improve forage quality and augment availability of perennial cover plants, we tested seeding (pelletized or bare seeding), watering, and fencing for increasing a native annual forage species (desert plantain Plantago ovata), a perennial forage species (desert globemallow Sphaeralcea ambigua), and two shrub species (cheesebush Hymenoclea salsola and winterfat Krascheninnikovia lanata) that provide cover in desert tortoise habitat of southern Nevada. Treatments were ineffective at establishing the perennial species, even though greenhouse assays confirmed that some bare and pelletized seeds were germinable. In contrast, pelletized seeding quadrupled the density of desert plantain compared with not seeding or seeding untreated seed by the end of the first year (autumn 2013). Fencing tripled density of desert plantain to 17 plants/m2. Pelletized seeding plus fencing produced a desert plantain density of 39 plants/m2, the highest average density among all treatment combinations. The positive effect of fencing persisted until at least the second year after treatment (autumn 2014). Augmenting native annual forage plants favored by desert tortoises is feasible.
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Smith, Chuck. "Desert Tortoise Care." Bulletin of the Association of Reptilian and Amphibian Veterinarians 4, no. 1 (January 1994): 12–15. http://dx.doi.org/10.5818/1076-3139.4.1.12.

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Hedrick, Philip W. "Comment on “Individual heterozygosity predicts translocation success in threatened desert tortoises”." Science 372, no. 6546 (June 3, 2021): eabg2673. http://dx.doi.org/10.1126/science.abg2673.

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Scott et al. (Reports, 27 November 2020, p. 1086) suggest, on the basis of conclusions obtained from a desert tortoise reintroduction program, that higher genomic heterozygosity should be used to identify individuals for successful translocation. I contend that this recommendation is questionable given these relocated tortoises’ unknown origin, their high mortality, insufficient data on resident tortoises and other components of fitness, and potential allelic dropout.
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Sandmeier, F. C., K. L. Leonard, C. R. Tracy, K. K. Drake, T. E. Esque, K. Nussear, and J. M. Germano. "Tools to understand seasonality in health: quantification of microbe loads and analyses of compositional ecoimmunological data reveal complex patterns in Mojave Desert Tortoise (Gopherus agassizii) populations." Canadian Journal of Zoology 97, no. 9 (September 2019): 841–48. http://dx.doi.org/10.1139/cjz-2018-0255.

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Using data from six wild Mojave Desert Tortoise (Gopherus agassizii (Cooper, 1861)) populations, we quantified seasonal differences in immune system measurements and microbial load in the respiratory tract, pertinent to this species’ susceptibility to upper respiratory tract disease. We quantified bacteria-killing activity of blood plasma and differential leukocyte counts to detect trends in temporal variation in immune function. We used centered log-ratio (clr) transformations of leukocyte counts and stress that such transformations are necessary for compositional data. We tested animals for the potential pathogen Pasteurella testudinis Snipes and Biberstein, 1982 with a newly created quantitative polymerase chain reaction (qPCR) assay, as well as for the known respiratory pathogens Mycoplasma agassizii Brown et al., 2001 and Mycoplasma testudineum Brown et al., 2004. We found very little disease and suggest that P. testudinis is a prevalent, commensal microbe in these Mojave Desert Tortoise populations, and its quantification may be a tool to study natural fluctuations in microbe levels in Mojave Desert Tortoise respiratory tracts. Our analyses showed that both the potential for inflammatory responses and microbe levels are highest in the spring for healthy Mojave Desert Tortoises, when lymphocyte levels are lowest. The genetic and statistical tools that we used are easily applicable to other wildlife systems and provide the necessary data to quantify species-wide trends in health and test hypotheses pertinent to host–microbe dynamics.
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Dissertations / Theses on the topic "Desert tortoise"

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Edwards, Taylor. "Desert tortoise conservation genetics." Thesis, The University of Arizona, 2003. http://hdl.handle.net/10150/291566.

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Managing for the long-term survival of a species requires an understanding of its population genetics. The desert tortoise, Gopherus agassizii, inhabits the Mojave and Sonoran deserts of North America. Desert tortoises face many threats to their continued survival, including habitat loss and fragmentation. I used mitochondrial and microsatellite DNA markers to examine genetic structure within and among populations of desert tortoises. I found that both the Mojave and Sonoran populations of desert tortoise exhibit similar patterns of population genetic structure. Gene flow among localities within each region is part of the evolutionary history of the desert tortoise and dispersal events probably play an important role in the long-term maintenance of populations. Movement barriers caused by anthropogenic landscape changes have the potential to effect desert tortoise population viability. Understanding the historical connectivity between and within the Mojave and Sonoran populations of desert tortoises will help facilitate the conservation of this species.
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Gundlach, David L. "Analysis of patch shape and area in desert tortoise habitat." abstract and full text PDF (free order & download UNR users only), 2008. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1456426.

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Kingdon, Lorraine B. "The Search for the Desert Tortoise." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 1992. http://hdl.handle.net/10150/622392.

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Hagerty, Bridgette E. "Ecological genetics of the Mojave desert tortoise." abstract and full text PDF (UNR users only), 2008. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3339179.

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McLuckie, Ann Marie 1965. "Genetics, morphology, and ecology of the desert tortoise (Gopherus agassizii) in the Black Mountains, Mohave County, Arizona." Thesis, The University of Arizona, 1995. http://hdl.handle.net/10150/278528.

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Desert tortoises (Gopherus agassizii) occurring east and south of the Colorado River form the "Sonoran population," a regulatory designation of the U.S. Fish and Wildlife Service, whereas tortoises west and north of the river constitute the "Mojave population." This distinction is based on significant genetic, morphometric and ecological differences. However, mitochondrial DNA, morphometric, and ecological data from the eastern bajada of the Black Mountains (about 40 km east of the Colorado River) identify the evolutionary affinities of those tortoises as Mojavean: ten of eleven Black Mountain tortoises possessed the Mojave genotype, twenty-four of thirty-seven tortoises predominantly expressed the Mojave phenotype, and all tortoises were similar to Mojave populations in macrohabitat selection. Some ecological and behavioral attributes such as home range size and hibernaculum selection did not differ among Mojave, Sonoran, and Black Mountain tortoises. Several hypotheses on how the Mojave trait became established in the Black Mountains are discussed.
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Eliker, Michelle Lee. "The use of spatial reference cues and primary cue strategies for maze running by the desert tortoise, Gopherus Agassizii." CSUSB ScholarWorks, 1997. https://scholarworks.lib.csusb.edu/etd-project/1438.

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Sandmeier, Franziska C. "Immunology and disease in the Mojave Desert tortoise (Gopherus agassizii)." abstract and full text PDF (UNR users only), 2009. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3387823.

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Martin, Brent Errol 1952. "Ecology of the desert tortoise (Gopherus agassizii) in a desert-grassland community in southern Arizona." Thesis, The University of Arizona, 1995. http://hdl.handle.net/10150/278515.

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After 6-10 years of mark-recapture observations, I studied seven desert tortoises by radio-telemetry during 1990-1992 in a desert-grassland community in Pinal County, Arizona. Six estimated home-range areas averaged 14.7 ha. Winter-spring (Nov-Jun) use areas (overline x=0.7 ha) were significantly smaller (P = 0.002) than summer-fall (Jul-Oct) use areas (overline x=10.7 ha). A correction formula inflated 1-2 summer-fall use areas of five tortoises 4-41% larger than their corrected home-range areas. Extended movements by females were significantly more frequent (P = 0.0001) than those of males during Mar-Jul, significantly less frequent (P = 0.0057) than males during Aug-Oct, and most frequent by both sexes in September. Use of two slopes and terraces was not season-dependent (P = 0.9159). Tortoises variably used four shelter types (rock, soil burrow, wood rat nest, vegetation), significantly with south-facing entrance aspects (P 0.0005). Hibernaculum structure and location varied. Hibernation ranged from 88-315 days. Radio-equipped tortoises included reuse of mark-recapture locations.
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Curtin, Amanda Jane Spotila James R. "Bone growth strategies and skeletochronological age estimates of desert tortoise (Gopherus agassizii) populations /." Philadelphia, Pa. : Drexel University, 2006. http://dspace.library.drexel.edu/handle/1860%20/838.

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Jones, Cristina Ann. "MYCOPLASMA AGASSIZII IN THE SONORAN POPULATION OF THE DESERT TORTOISE IN ARIZONA." Thesis, The University of Arizona, 2008. http://hdl.handle.net/10150/193431.

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Upper Respiratory Tract Disease (URTD), caused by the pathogens Mycoplasma agassizii and M. testudineum, has been documented in the desert tortoise (Gopherus agassizii). Although URTD was identified as a putative agent that led to federal listing of the Mojave population of the desert tortoise, little is known about this disease in the Sonoran population of the desert tortoise. The purpose of this study was to determine: 1) the prevalence of URTD across an urban gradient in Greater Tucson, Arizona, 2) the relationship between URTD and captive and free-ranging tortoises in Mohave, Maricopa, and Pima counties in Arizona, and 3) the effects of URTD on desert tortoise home range size and winter temperature selection.
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Books on the topic "Desert tortoise"

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Einspruch, Andrew. Desert tortoise. Cambridge, MA: Educators Publishing Service, 2006.

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U. S. Bureau of Land Management. The Desert tortoise. Riverside, Calif: California Desert District Office. Bureau of Land Management, 1993.

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Lamb, G. William, Frank Rowley, William H. Radtkey, Eugene A. Dahlem, Sidney Slone, Richard R. Olendorff, and Edward F. Spang. Desert tortoise habitat management. Washington, D.C: U.S. Department of the Interior, Bureau of Land Management, Division of Wildlife and Fisheries, 1988.

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F, Spang Edward, and United States. Bureau of Land Management., eds. Desert tortoise habitat management. Washington, D.C: U.S. Dept. of the Interior, Bureau of Land Management, 1992.

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United States. Bureau of Land Management. Ridgecrest Resource Area. California Desert Tortoise Natural Area. Place of publication not identified]: [U.S. Dept. of the Interior, Bureau of Land Management], 1993.

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Library of Congress. Congressional Research Service., ed. Desert tortoise populations: Federal protection. [Washington, D.C.]: Congressional Research Service, Library of Congress, 1993.

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Library of Congress. Congressional Research Service, ed. Desert tortoise populations: Federal protection. [Washington, D.C.]: Congressional Research Service, Library of Congress, 1993.

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Lockwood, Sophie. Desert tortoises. Chanhassen, Minn: Child's World, 2006.

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Elizabeth, Thomas. Desert tortoises. Mankato, Minn: Capstone Press, 2012.

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Management, United States Bureau of Land. Management of desert tortoise habitat. Washington, D.C: Bureau of Land Management, 1986.

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Book chapters on the topic "Desert tortoise"

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Pilliod, David S., and Todd C. Esque. "Amphibians and Reptiles." In Rangeland Wildlife Ecology and Conservation, 861–95. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-34037-6_25.

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AbstractAmphibians and reptiles are a diverse group of ectothermic vertebrates that occupy a variety of habitats in rangelands of North America, from wetlands to the driest deserts. These two classes of vertebrates are often referred to as herpetofauna and are studied under the field of herpetology. In U.S. rangelands, there are approximately 66 species of frogs and toads, 58 salamanders, 98 lizards, 111 snakes, and 27 turtles and tortoises. Herpetofauna tend to be poorly studied compared with other vertebrates, which creates a challenge for biologists and landowners who are trying to manage rangeland activities for this diverse group of animals and their habitats. Degradation of habitats from human land use and alteration of natural processes, like wildfire, are primary threats to herpetofauna populations. Disease, non-native predators, collection for the pet trade, and persecution are also conservation concerns for some species. Properly managed livestock grazing is generally compatible with herpetofauna conservation, and private and public rangelands provide crucial habitat for many species. Climate change also poses a threat to herpetofauna, but we have an incomplete understanding of the potential effects on species. Dispersal and adaptation could provide some capacity for species to persist on rangelands as climates, disturbance regimes, and habitats change. However, inadequate information and considerable uncertainty will make climate mitigation planning difficult for the foreseeable future. Planning for and mitigating effects of climate change, and interactions with other stressors, is an urgent area for research. Maintaining large, heterogeneous land areas as rangelands will certainly be an important part of the conservation strategy for herpetofauna in North America.
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Campbell, Faith Thompson. "The Desert Tortoise." In Audubon Wildlife Report 1988/1989, 566–81. Elsevier, 1988. http://dx.doi.org/10.1016/b978-0-12-041001-9.50029-7.

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"42. The Desert Tortoise." In Desert Wildlife, 292–300. Stanford University Press, 2022. http://dx.doi.org/10.1515/9781503620605-044.

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Berry, Kristin H., and Robert W. Murphy. "Gopherus agassizii (Cooper 1861) – Mojave Desert Tortoise, Agassiz’s Desert Tortoise." In Chelonian Research Monographs. Chelonian Research Foundation and Turtle Conservancy, 2019. http://dx.doi.org/10.3854/crm.5.109.agassizii.v1.2019.

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OFTEDAL, OLAV T. "Nutritional Ecology of the Desert Tortoise in the Mohave and Sonoran Deserts." In The Sonoran Desert Tortoise, 194–241. University of Arizona Press, 2019. http://dx.doi.org/10.2307/j.ctvfjcx1x.12.

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GERMANO, DAVID J., F. HARVEY POUGH, DAVID J. MORAFKA, ELLEN M. SMITH, and MICHAEL J. DEMLONG. "Growth of Desert Tortoises:." In The Sonoran Desert Tortoise, 265–88. University of Arizona Press, 2019. http://dx.doi.org/10.2307/j.ctvfjcx1x.14.

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BURY, R. BRUCE, DAVID J. GERMANO, THOMAS R. VAN DEVENDER, and BRENT E. MARTIN. "The Desert Tortoise in Mexico:." In The Sonoran Desert Tortoise, 86–108. University of Arizona Press, 2019. http://dx.doi.org/10.2307/j.ctvfjcx1x.8.

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"Front Matter." In The Sonoran Desert Tortoise, i—iv. University of Arizona Press, 2019. http://dx.doi.org/10.2307/j.ctvfjcx1x.1.

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AVERILL-MURRAY, ROY C., BRENT E. MARTIN, SCOTT JAY BAILEY, and ELIZABETH B. WIRT. "Activity and Behavior of the Sonoran Desert Tortoise in Arizona." In The Sonoran Desert Tortoise, 135–58. University of Arizona Press, 2019. http://dx.doi.org/10.2307/j.ctvfjcx1x.10.

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VAN DEVENDER, THOMAS R., ROY C. AVERILL-MURRAY, TODD C. ESQUE, PETER A. HOLM, VANESSA M. DICKINSON, CECIL R. SCHWALBE, ELIZABETH B. WIRT, and SHERYL L. BARRETT. "Grasses, Mallows, Desert Vine, and More:." In The Sonoran Desert Tortoise, 159–93. University of Arizona Press, 2019. http://dx.doi.org/10.2307/j.ctvfjcx1x.11.

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Conference papers on the topic "Desert tortoise"

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Perry, Jeanette, Derek Hall, W. Kent Ostler, Jonathan Drescher-Lehma, and Thomas Akre. "Living along unfenced, moderately trafficked roads on the Nevada National Security Site." In 48th Annual Desert Tortoise Council Symposium - https://deserttortoise.org/annual-symposium/overview/ Hybrid event (both in-person and virtual attendance options) to be held at the Dixie Center in Saint George, Utah, February 23-25, 2023. US DOE, 2023. http://dx.doi.org/10.2172/1958119.

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Reports on the topic "Desert tortoise"

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Goldwire, Jr, H. C., T. G. McRae, G. W. Johnson, D. L. Hipple, R. P. Koopman, J. W. McClure, L. K. Morris, and R. T. Cederwall. Desert Tortoise series data report: 1983 pressurized ammonia spills. Office of Scientific and Technical Information (OSTI), December 1985. http://dx.doi.org/10.2172/6393901.

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Nagy, Kenneth A., and Scott Hillard. Desert Tortoise Head-start Program at Twentynine Palms Marine Base. Fort Belvoir, VA: Defense Technical Information Center, April 2013. http://dx.doi.org/10.21236/ada605879.

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Molly June Bechtel, Molly June Bechtel. Ticks and Tick-borne Pathogens of the Mojave Desert Tortoise. Experiment, July 2018. http://dx.doi.org/10.18258/11670.

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Grover, Mark C., and Lesley A. DeFalco. Desert tortoise (Gopherus agassizii): Status-of-knowledge outline with references. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Research Station, 1995. http://dx.doi.org/10.2737/int-gtr-316.

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Allison, Linda. Range-Wide Monitoring of the Mojave Desert Tortoise (Gopherus Agassizii): 2008 and 2009. Fort Belvoir, VA: Defense Technical Information Center, September 2012. http://dx.doi.org/10.21236/ada572741.

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Rautenstrauch, K. R., G. A. Brown, and R. G. Goodwin. The northern boundary of the desert tortoise range on the Nevada Test Site. Office of Scientific and Technical Information (OSTI), December 1994. http://dx.doi.org/10.2172/10123267.

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Duda, Jeffrey J., and Anthony K. Krzysik. Radiotelemetry Study of a Desert Tortoise Population: Sand Hill Training Mea, Marine Corps Air Ground Combat Center, Twentynine Palms, California. Fort Belvoir, VA: Defense Technical Information Center, May 1998. http://dx.doi.org/10.21236/ada350552.

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Henk, Jordan. Applications of GIS, Advanced Sensors and Habitat Modeling in Support of Desert Tortoise Line Distance, Sampling and Translocation Studies Related to the Proposed Expansion of the Ft. Irwin NTC. Fort Belvoir, VA: Defense Technical Information Center, September 2008. http://dx.doi.org/10.21236/ada498532.

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Rautenstrauch, K. R., and T. P. O`Farrell. Relative abundance of desert tortoises on the Nevada Test Site. Office of Scientific and Technical Information (OSTI), December 1993. http://dx.doi.org/10.2172/10121823.

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JAMES L. BOONE AND ERIC A. HOLT. SEXING YOUNG, FREE-RANGING DESERT TORTOISES (GOPHERUS AGASSIZII) USING EXTERNAL MORPHOLOGY. Office of Scientific and Technical Information (OSTI), October 1998. http://dx.doi.org/10.2172/776476.

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