Classification of Great Basin Plant Communities Occurring on Dugway Proving Ground, Utah.

Emrick, Verl; Hill, A. T.

doi:10.21236/ada360939

Cited by 7 publications

(9 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1). The vegetation is predominately Greasewood (Emrick and Hill 1999) approximately 1 m in height. VWC values are much lower at the Sagebrush site, allowing for a smaller heat capacity and thermal inertia (TI).…”

Section: Experimental Sitesmentioning

confidence: 99%

Observations of Near-Surface Heat-Flux and Temperature Profiles Through the Early Evening Transition over Contrasting Surfaces

Jensen

Nadeau²,

Hoch³

et al. 2015

Boundary-Layer Meteorol

View full text Add to dashboard Cite

Near-surface turbulence data from the Mountain Terrain Atmospheric Modeling and Observations (MATERHORN) program are used to study countergradient heat fluxes through the early evening transition. Two sites, subjected to similar large-scale forcing, but with vastly different surface and sub-surface characteristics, are considered. The Playa site is situated at the interior of a large dry lakebed desert with high sub-surface soil moisture, shallow water table, and devoid of vegetation. The Sagebrush site is located in a desert steppe region with sparse vegetation and little soil moisture. Countergradient sensible heat fluxes are observed during the transition at both sites. The transition process is both site and height dependent. At the Sagebrush site, the countergradient flux at 5 m and below occurs when the sign change of the sensible heat flux precedes the local temperature gradient sign change. For 10 m and above, the countergradient flux occurs when the sign change of the sensible heat flux follows the local temperature gradient sign change. At the Playa site, the countergradient flux at all tower levels occurs when the sign change of the sensible heat flux follows the local temperature gradient sign change. The phenomenon is explained in terms of the mean temperature and heat-flux evolution. The temperature gradient sign reversal is a top-down process while the flux reversal occurs nearly simultaneously at all heights. The differing countergradient behaviour is primarily due to the different subsurface thermal characteristics at the two sites. The combined high volumetric heat capacity and high thermal conductivity at the Playa site lead to small vertical temperature gradients that affect the relative magnitude of terms in the heat-flux tendency equation. A critical ratio of the gradient production to buoyant production of sensible heat flux is suggested so as to predict the countergradient behaviour.B Eric R. Pardyjak

show abstract

Section: Experimental Sitesmentioning

confidence: 99%

Observations of Near-Surface Heat-Flux and Temperature Profiles Through the Early Evening Transition over Contrasting Surfaces

Jensen

Nadeau²,

Hoch³

et al. 2015

Boundary-Layer Meteorol

View full text Add to dashboard Cite

show abstract

“…We determined small mammal densities for 2 time peiiods over 2 years: June and September The 6 dominant habitats, which were identified first by Vest (1962) and later redefined by Emrick and Hill (1998), were trapped with 3 replicates of each habitat: grassland (exotic annuals), chenopod, piclleweed, vegetated dune, greasewood, and shrubsteppe. Kit fox home ranges were known to incorporate pol-tions of each of these habitats (Arjo et al 2003).…”

Section: Small Manlmal Abundancementioning

confidence: 99%

Changes in Kit Fox–coyote–prey Relationships in the Great Basin Desert, Utah

Arjo¹,

Gese²,

Bennett³

et al. 2007

Western North American Naturalist

111

View full text Add to dashboard Cite

“…). Where wildfires had occurred, 40% of historical juniper woodland and shrub communities had been replaced by exotic herbaceous vegetation (Emrick and Hill ).…”

Section: Methodsmentioning

confidence: 99%

“…The terrain consisted of isolated small mountains, a portion of the Cedar Mountains, sand dunes, and alkaline flats that were dominated by black greasewood (Sarcobatus vermiculatus), big sagebrush (Artemisia tridentata), and juniper (Juniperus osteosperma) (Dempsey et al 2014). Where wildfires had occurred, 40% of historical juniper woodland and shrub communities had been replaced by exotic herbaceous vegetation (Emrick and Hill 1999).…”

Section: Study Areamentioning

confidence: 99%

Ectoparasite burden influences the denning behavior of a small desert carnivore

2019

View full text Add to dashboard Cite

Quantifying the impacts of parasitism on a host can be arduous and is generally understudied for ectoparasites, with known works being either laboratory‐focused, correlational‐based, or only focusing on a few species and spatial extents. Many mammalian species have evolved the modality of denning behavior, a lifestyle that can lead to higher ectoparasite burden, and it has been posited that animals may alter their denning behavior in an attempt to reduce exposure to ectoparasites. We conducted a test of the ectoparasite release hypothesis for kit foxes (Vulpes macrotis) and fleas in the Great Basin Desert of the western United States, a hypothesis that has remained relatively untested for over half a century. We experimentally administered a flea reduction treatment to a subset of kit foxes. We then measured and compared the number of unique den usages and residency time across treatment and control foxes (no flea reduction treatment) while accounting for other factors known to influence denning behavior. Foxes treated with the flea medication reduced the number of unique dens and increased their residency times at dens. All kit foxes continued to use multiple dens on the landscape, suggesting several factors in addition to flea burden influence denning behavior. Our results confirm the long‐dormant ectoparasite release hypothesis and suggest ectoparasites may shape the behavior of burrowing vertebrates to a greater extent than previously recognized.

show abstract

Classification of Great Basin Plant Communities Occurring on Dugway Proving Ground, Utah.

Cited by 7 publications

References 22 publications

Observations of Near-Surface Heat-Flux and Temperature Profiles Through the Early Evening Transition over Contrasting Surfaces

Observations of Near-Surface Heat-Flux and Temperature Profiles Through the Early Evening Transition over Contrasting Surfaces

Changes in Kit Fox–coyote–prey Relationships in the Great Basin Desert, Utah

Ectoparasite burden influences the denning behavior of a small desert carnivore

Contact Info

Product

Resources

About