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Full-Text Articles in Physical Sciences and Mathematics
Assessing Growth Response To Climate Controls In A Great Basin Artemisia Tridentata Plant Community, Lorenzo F. Apodaca
Assessing Growth Response To Climate Controls In A Great Basin Artemisia Tridentata Plant Community, Lorenzo F. Apodaca
UNLV Theses, Dissertations, Professional Papers, and Capstones
An assessment of the growth response of key vegetative species to climatic variability is vital to identifying possible local impacts on ecosystems faced with imminent climate change. With current climate projections in Nevada predicting a shift to an even more arid climate with greater year-to-year variability, the imperative exists to identify the effects of specific climatic controls on plant growth and to research methods to assess large-scale vegetative changes, especially in more remote areas where readily available data sets may be lacking. This study utilized annual growth ring indices constructed from big sagebrush (Artemisia tridentatassp.tridentata) stems collected in Spring Valley, …
Investigating Three Decades Of Vegetation Change In A Mojave Desert Mountain Range, Chris Lee Roberts
Investigating Three Decades Of Vegetation Change In A Mojave Desert Mountain Range, Chris Lee Roberts
UNLV Theses, Dissertations, Professional Papers, and Capstones
This project is a vegetation change study spanning 29 years in the Newberry Mountains of Southern Nevada. Long term monitoring data are crucial for understanding the effects of climate change on vegetation dynamics. Successful management intervention in vegetation change will require identification of early indicator plant species and their responses to climatic cues. This project is one of the oldest comparisons of resurveyed Mojave vegetation community plots with repeatable methodology and the longest survey interval reported for the southeastern Mojave Desert. 103 plots were relocated and resurveyed based on data methods in Jim Holland's thesis titled "A Vegetative Analysis of …
Bryoecology In The American Southwest: Patterns Of Biodiversity And Responses To Global Change, John Carroll Brinda
Bryoecology In The American Southwest: Patterns Of Biodiversity And Responses To Global Change, John Carroll Brinda
UNLV Theses, Dissertations, Professional Papers, and Capstones
This dissertation combines investigation of the large-scale responses of bryophyte species diversity and distribution with small-scale physiological adaptations to global change. These two areas of inquiry are linked because one way to predict plant species responses to global change is to examine their distribution across current ecological gradients produced by factors such as latitude and elevation. By examining these biogeographic patterns one can identify those species that have a narrow tolerance and therefore are most sensitive to change. Selected bryophytes might then be used as indicator species in long-term monitoring programs. Where historical data exist, these can be used to …
Climate And Vegetation Change In The Newberry Mountains, Southern Clark County, Nevada, Ross Joseph Guida
Climate And Vegetation Change In The Newberry Mountains, Southern Clark County, Nevada, Ross Joseph Guida
UNLV Theses, Dissertations, Professional Papers, and Capstones
Ecological studies have shown worldwide that vegetation is being affected by climate change. Species are shifting to new elevations and physiographic positions to adapt to changes in their environment. More specifically, paleoecology studies in the Mojave Desert have shown shifting vegetation patterns in response to past warming and precipitation changes. Recent studies have shown mortality among desert plants related to extended drought and warming. However, few studies have shown how the geographic distribution of Mojave Desert species has changed during this most recent period of warming. This study addresses this gap in the literature by focusing on several plant species …
Water Source Partitioning For Shrubland Transpiration Using Innovative Field Methods, Dale A. Devitt, Michael Young, Matthew S. Lachniet, Jeremy Koonce, Amanda Wagner, Brian M. Bird, J. Healey
Water Source Partitioning For Shrubland Transpiration Using Innovative Field Methods, Dale A. Devitt, Michael Young, Matthew S. Lachniet, Jeremy Koonce, Amanda Wagner, Brian M. Bird, J. Healey
2010 Annual Nevada NSF EPSCoR Climate Change Conference
37 PowerPoint slides Convener: Franco Biondi, UNR & Michael Young, DRI Session 4: Ecological Change and Water Resources Abstract: -Climate change models predict a decline in precipitation over the next few decades throughout much of the southwest. -Such change has the potential to shift water uptake dynamics of phreatophytes -If groundwater pumping also occurs, the impact of climate change could be exacerbated. -A better understanding of the forces that drive the coupling and decoupling of phreatophytes to groundwater is needed.
Geovisualization Of Ecological Data For Park Policy Support, Scott R. Abella, Haroon Stephen, Ross Guida
Geovisualization Of Ecological Data For Park Policy Support, Scott R. Abella, Haroon Stephen, Ross Guida
2010 Annual Nevada NSF EPSCoR Climate Change Conference
12 PowerPoint slides Convener: William Smith, UNLV Session 3: Policy, Decision Making, and Outreach Abstract: -Literature shows upward elevation shifts of biological species as a result of climate change -Effects of climate change expected to accelerate in coming decades -Concern both about species migrating out of parks and the potential inability of species to quickly adapt to the changing conditions within National Parks and other federal land boundaries
Research Poster: Vegetation Change In The Newberry Mountains Of Southern Nevada, Ross Guida, William J. Smith Jr., Scott R. Abella
Research Poster: Vegetation Change In The Newberry Mountains Of Southern Nevada, Ross Guida, William J. Smith Jr., Scott R. Abella
2010 Annual Nevada NSF EPSCoR Climate Change Conference
Research poster