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The Roles Of Wildfire And Granivores In Shaping Mojave Desert Native And Invasive Annual Plant Communities
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Book Synopsis The Roles of Wildfire and Granivores in Shaping Mojave Desert Native and Invasive Annual Plant Communities by : Todd C. Esque
Download or read book The Roles of Wildfire and Granivores in Shaping Mojave Desert Native and Invasive Annual Plant Communities written by Todd C. Esque and published by . This book was released on 2004 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2004 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Of Fire, Mammals, and Rain by : Tara Boyce Belnap Bishop
Download or read book Of Fire, Mammals, and Rain written by Tara Boyce Belnap Bishop and published by . This book was released on 2019 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biological invasions are driving environmental state changes on a global scale. Exotic plant species must be successful at passing several abiotic and biotic filters to establish and disrupt the native plant community assembly. Understanding where exotic plants are on a regional scale and being able to characterize how exotic plants are generally interacting with their environment is crucial information for exotic species management (chapter 1). In the western United States human-related activities are augmenting the spread of exotic plant species by increasing the ignitions of wildfire. Wildfire can lead to nutrient pulses through the removal of intact native communities and returning some mineral content into the soil. Exotic plant species that have traits that efficiently acquire nutrients accompanied by rapid growth rates may outcompete native plants. In chapters 2, 3, and 4 experimental fires demonstrated that the direct effect of fire may not be as critical as the potential indirect effects of fire such as altering the behavior of consumers (chapter 2) and reducing competition (chapters 3 and 4). In the Mojave desert, rodent consumers can have strong top-down effects on plant community assembly through foraging selection preferences. Life history traits such as seedling and seed size can lead to differential herbivory and positively benefit some plant species while inhibiting others (chapter 1) which could indirectly alter plant-plant interactions. Plant competition is a biotic filter than can determine establishment success or failure. Species that with rapid growth rates and plastic growth responses are likely to be able to capitalize on fluctuations in available resources. In the Great Basin, forecasts in climate change models predict that precipitation timing will lead to heavier fall rains and more rain than snow in the winter. Water availability is one of the main limiting factors in semi-arid and arid ecosystems where native plants have adaptive traits to maximize resource use. The interaction of wildfire and changes in climate, specifically timing of precipitation is critical to understand to be able to predict and protect against increasing wildfire frequency and severity. In chapter three, the responses by a key exotic annual grass, Bromus tectorum, and keystone native perennial shrub Artemisia tridentata subsp. wyomingensis, were positive for increased early fall precipitation but much more pronounced for B. tectorum. Exotic annual plants are able to respond to changes in timing of fall precipitation and have extreme growth which leads to superior competitive abilities through interference and priority effects (chapter 4). Native plants can compete with exotics but the magnitude of the effects are diminished compared to the negative interaction from exotics. Together these findings demonstrate that across several regions exotic annual grasses are capable of passing through abiotic filters and disrupting biotic interactions of the native plant community. This is likely to lead to increased spread of exotic annual species and may indicate potential and availability of fine fuel production supporting increases in size and frequency of wildfires in the western United States.
Book Synopsis The Role of Wildfire in the Establishment and Range Expansion of Nonnative Plant Species Into Natural Areas by : Mara Johnson
Download or read book The Role of Wildfire in the Establishment and Range Expansion of Nonnative Plant Species Into Natural Areas written by Mara Johnson and published by . This book was released on 2006 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Global Change on Mojave Desert Annual Plant Communities by : Stacy Marie Irvin
Download or read book Effects of Global Change on Mojave Desert Annual Plant Communities written by Stacy Marie Irvin and published by . This book was released on 2006 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ecological Society of America ... Annual Meeting Abstracts by : Ecological Society of America. Meeting
Download or read book Ecological Society of America ... Annual Meeting Abstracts written by Ecological Society of America. Meeting and published by . This book was released on 2002 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Fire on Vegetation and Small Mammal Communities in a Mojave Desert Joshua Tree Woodland by : Michael Stuart Vamstad
Download or read book Effects of Fire on Vegetation and Small Mammal Communities in a Mojave Desert Joshua Tree Woodland written by Michael Stuart Vamstad and published by . This book was released on 2009 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ecology of a Biological Invasion by : Matthew Lamar Brooks
Download or read book Ecology of a Biological Invasion written by Matthew Lamar Brooks and published by . This book was released on 1998 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Some Characteristics of Soil and Perennial Vegetation in Northern Mojave Desert Areas of the Nevada Test Site by : E. M. Romney
Download or read book Some Characteristics of Soil and Perennial Vegetation in Northern Mojave Desert Areas of the Nevada Test Site written by E. M. Romney and published by . This book was released on 1973 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Fire on Madrean Province Ecosystems by : Peter F. Ffolliott
Download or read book Effects of Fire on Madrean Province Ecosystems written by Peter F. Ffolliott and published by . This book was released on 1996 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Factors Underlying Invasive Grass Fire Regimes in the Mojave Desert and Its Consequences on Plant and Animal Communities by : Kevin J. Horn
Download or read book Factors Underlying Invasive Grass Fire Regimes in the Mojave Desert and Its Consequences on Plant and Animal Communities written by Kevin J. Horn and published by . This book was released on 2013 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Potential revegetation of post-fire landscapes will depend at least in part upon the physiological response of surviving vegetation to post-fire landscape. Plant physiological responses to post-fire landscapes were generally neutral or positive, suggesting that revegetation of post-fire landscapes is not precluded by resource loss associated with fire and may even be enhanced by post-fire conditions. This will likely translate to increased reproductive potential of surviving plants.
Book Synopsis Perennial Grass-dominated Plant Communities of the Eastern Mojave Desert Region by : Joseph R. McAuliffe
Download or read book Perennial Grass-dominated Plant Communities of the Eastern Mojave Desert Region written by Joseph R. McAuliffe and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Can Three Native Mojave Desert Perennials Adapt to Increasing Atmospheric Nitrogen Deposition and Annual Grass Invasion in Joshua Tree National Park? by : Dashiell Alden Hibbard
Download or read book Can Three Native Mojave Desert Perennials Adapt to Increasing Atmospheric Nitrogen Deposition and Annual Grass Invasion in Joshua Tree National Park? written by Dashiell Alden Hibbard and published by . This book was released on 2015 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anthropogenic emissions have increased atmospheric nitrogen deposition nearly four-fold in the industrial era. Although increased N availability can be beneficial for individual plants, it can increase community susceptibility to invasion and have detrimental effects on native plant communities. We grew three native Mojave Desert perennials, Ambrosia salsola, Hilaria rigida, and Stipa speciosa, collected across an N deposition/invasion gradient in Joshua Tree National Park, in greenhouse and field common gardens to determine if populations possessed the heritable variation required to adapt to increasing N deposition and annual grass invasion, and asked if there was any evidence for adaptation to these factors. We collected seed from individual plants (families) at six sites representing three levels of N deposition and invasion within the park, and grew plants in a greenhouse for 90 days with and without competition from the invasive Bromus madritensis ssp. rubens at varying N levels. We analyzed differences in leaf number, total biomass, allocation to above and below ground biomass, and allocation to fine and coarse roots using a nested ANOVA. As expected, B. madritensis competition decreased biomass of all native plants, and N addition increased biomass, except for H. rigida. Families of all species differed in many measured traits, and there were site differences in some traits for A. salsola and H. rigida. Populations from different N deposition and invasion levels showed some differences in growth strategies, especially in A. salsola, for which plants from high N/invaded sites saw a smaller relative decrease in biomass and leaf number when grown with B. madritensis , consistent with adaption to annual grass competition. We also conducted a reciprocal transplant experiment using seed collected from the same six sites. Plants were transplanted reciprocally after one year in the greenhouse. Transplant survival, vigor, and size were affected by transplant site and N status, whereas origin site and N status did not significantly impact these traits. Although there was no evidence of evolutionary response to N deposition level for any species, families exhibited differences in responses to N, suggesting that there may be a small amount of heritable variation that could allow for future adaptation to conditions that are likely to be prevalent in the future. Use of populations or individuals that show increased performance under likely future conditions could allow for more successful restoration projects.
Book Synopsis Prescribed Burning in California Wildlands Vegetation Management by : Harold Biswell
Download or read book Prescribed Burning in California Wildlands Vegetation Management written by Harold Biswell and published by Univ of California Press. This book was released on 1999-08-31 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Harold Biswell's decades of research and field experience were a major factor in developing policies of controlled or prescribed burning, which mimics or reintroduces the natural fire cycle. This comprehensive study introduces the principles and practices of prescribed burning, which apply far beyond California, within a historical and ecological perspective. Available for the first time in paperback, with a new foreword by James Agee, this book places Biswell's study—and his legacy—in the context of recent developments in the field.
Book Synopsis Ecology and Evolution of an Annual Plant Following Fire in the Mojave Desert by : Cheryl Hightower Vanier
Download or read book Ecology and Evolution of an Annual Plant Following Fire in the Mojave Desert written by Cheryl Hightower Vanier and published by . This book was released on 2001 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fire Regimes in Desert Ecosystems: Drivers, Impacts and Changes by : Eddie John Van Etten
Download or read book Fire Regimes in Desert Ecosystems: Drivers, Impacts and Changes written by Eddie John Van Etten and published by Frontiers Media SA. This book was released on 2022-10-14 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Influence of Annual Species Composition and Density on Perennial Seedling Density in Four Plant Communities in the Northern Mojave Desert by :
Download or read book The Influence of Annual Species Composition and Density on Perennial Seedling Density in Four Plant Communities in the Northern Mojave Desert written by and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: