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Fire in North American Tallgrass Prairies

Fire in North American Tallgrass Prairies PDF Author: Scott L. Collins
Publisher: University of Oklahoma Press
ISBN: 9780806123158
Category : Social Science
Languages : en
Pages : 198

Book Description
Based on papers presented at a 1987 symposium, "Fire in North American Grasslands," cosponsored by the Ecological Society of America and the Botanical Society of America, this book represents an important contribution to key unanswered questions concerning the role of fire in grassland ecosystems: How often did fires occur in the past? Were they primarily natural or caused by humans? At what time of year did grasslands normally burn? How should fire be used as a management tool? What constitutes a proper prescribed burning regime both with and without grazing?

Fire in North American Tallgrass Prairies

Fire in North American Tallgrass Prairies PDF Author: Scott L. Collins
Publisher: University of Oklahoma Press
ISBN: 9780806123158
Category : Social Science
Languages : en
Pages : 198

Book Description
Based on papers presented at a 1987 symposium, "Fire in North American Grasslands," cosponsored by the Ecological Society of America and the Botanical Society of America, this book represents an important contribution to key unanswered questions concerning the role of fire in grassland ecosystems: How often did fires occur in the past? Were they primarily natural or caused by humans? At what time of year did grasslands normally burn? How should fire be used as a management tool? What constitutes a proper prescribed burning regime both with and without grazing?

Clonality in the Anthropocene: Adaptation, Evolution, and Functioning of Clonal Plants from Individuals to Ecosystems

Clonality in the Anthropocene: Adaptation, Evolution, and Functioning of Clonal Plants from Individuals to Ecosystems PDF Author: Yong-Jian Wang
Publisher: Frontiers Media SA
ISBN: 283255394X
Category : Science
Languages : en
Pages : 160

Book Description
The Anthropocene, with the ongoing global changes in climate, land use, acidity, and content of toxins, represents the greatest recent challenges for plants. Clonal plants mainly reproduce vegetatively/asexually, and offspring remain attached to the parent at least until establishment. Despite limited gene recombination and genetic diversity, clonal plants are widely distributed and play significant roles in various ecosystems worldwide. Clonal traits, such as resource sharing and signaling between connected ramets, selective positioning of ramets, reallocation of stored energy/nutrients between connected ramets, initiation of meristem banks in response to clonal integration, and trade-offs between clonal and sexual reproduction, might help clonal plants adapt to different environmental conditions. The expression, fitness effects, and evolution of clonal traits can be influenced by environmental changes, which can be efficiently inherited and affects offspring performance, i.e., clonal parental effect. These adaptations may contribute to the survival, competition, invasiveness, and spread of clonal species in response to global climate change in the Anthropocene, from individuals to ecosystems. Understanding the capacity of clonal species to survive and adjust to changing environments is requisite but limited. Specifically, the unique traits of clonal plants have been underestimated, and their contribution to population, community, and ecosystem dynamics is unclear. The roles of clonality in ecosystem functioning (e.g., carbon storage, carbon, nitrogen and phosphorus cycling, water and soil conservation, and water purification) need to be further explored. The contribution of clonal growth in plant invasiveness and community invisibility also needs to be addressed. Hence, there is an urgent need for more in-depth studies investigating the adaptation and evolution, mechanisms, functioning, and approaches of plant clonality to global change and invasiveness at different levels.

Grassland Management for Sustainable Agroecosystems

Grassland Management for Sustainable Agroecosystems PDF Author: Abad Chabbi
Publisher: MDPI
ISBN: 3039282220
Category : Science
Languages : en
Pages : 252

Book Description
This book is a remarkable work that brings together the most recent international research on grassland management, covering a broad range of topics and geographical areas. The different contributions explore the complex relationships between landscape, climate features, and soil fertility with the support of observational data and modeling. Clearly, this is a wide and multifaceted area of research that opens up new prospects for the management of a biome, which should no longer be considered only as a feed resource for domestic herbivore farming, but also—and above all—as a source of ecosystem services to society and a contributor to the sustainability of agriculture. Textbooks like this positively demonstrate the importance and significance of how grassland science, when viewed in this way, can make tangible the progress in understanding the complexity of grassland management and its current and future challenges.

Global Vegetation

Global Vegetation PDF Author: Jörg S. Pfadenhauer
Publisher: Springer Nature
ISBN: 3030498603
Category : Science
Languages : en
Pages : 872

Book Description
This up-to-date textbook of global vegetation ecology, which comprises the current state of knowledge, is long overdue and much-needed. It is a translation of the textbook “Vegetation der Erde” (Springer-Spektrum, Heidelberg). A short introductory chapter deals with the fundamentals of vegetation ecology that are of importance for the delimitation and characterization of the global vegetation presented in this book (chorology, evolution of plants, physiognomic and structural characteristics, phytodiversity and the human impact on it as well as general terminology concerning both plant growth forms and on vegetation structure types). In the following chapters the zonal and azonal vegetation from the tropics to the polar regions including high mountains is described and discussed. The main focus is on the characterization of interactions between the spatial location of plants and plant communities on the one hand and site conditions, historic and genetic processes, spatial and temporal patterns, ecophysiology and anthropogenic influences on the other hand. Additional information on specific topics is provided in 51 boxes.

Climate Vulnerability, Volume 4

Climate Vulnerability, Volume 4 PDF Author:
Publisher: Newnes
ISBN: 0123919010
Category : Science
Languages : en
Pages : 982

Book Description
Climate Vulnerability, Volume 4

Canadian Journal of Forest Research

Canadian Journal of Forest Research PDF Author:
Publisher:
ISBN:
Category : Forest genetics
Languages : en
Pages : 660

Book Description


Essentials of Landscape Ecology

Essentials of Landscape Ecology PDF Author: Kimberly A. With
Publisher:
ISBN: 0198838387
Category : Science
Languages : en
Pages : 654

Book Description
Presents the principles, theory, methods, and applications of landscape ecology and is supplemented by numerous examples and case studies from a variety of systems.

Mycorrhizal Mediation of Soil

Mycorrhizal Mediation of Soil PDF Author: Nancy Collins Johnson
Publisher: Elsevier
ISBN: 0128043830
Category : Science
Languages : en
Pages : 526

Book Description
Mycorrhizal Mediation of Soil: Fertility, Structure, and Carbon Storage offers a better understanding of mycorrhizal mediation that will help inform earth system models and subsequently improve the accuracy of global carbon model predictions. Mycorrhizas transport tremendous quantities of plant-derived carbon below ground and are increasingly recognized for their importance in the creation, structure, and function of soils. Different global carbon models vary widely in their predictions of the dynamics of the terrestrial carbon pool, ranging from a large sink to a large source. This edited book presents a unique synthesis of the influence of environmental change on mycorrhizas across a wide range of ecosystems, as well as a clear examination of new discoveries and challenges for the future, to inform land management practices that preserve or increase below ground carbon storage. - Synthesizes the abundance of research on the influence of environmental change on mycorrhizas across a wide range of ecosystems from a variety of leading international researchers - Focuses on the specific role of mycorrhizal fungi in soil processes, with an emphasis on soil development and carbon storage, including coverage of cutting-edge methods and perspectives - Includes a chapter in each section on future avenues for further study

Ecosystems of Disturbed Ground

Ecosystems of Disturbed Ground PDF Author: L.R. Walker
Publisher: Elsevier
ISBN: 0080550843
Category : Science
Languages : en
Pages : 881

Book Description
As the human population inexorably grows, its cumulative impact on the Earth's resources is hard to ignore. The ability of the Earth to support more humans is dependent on the ability of humans to manage natural resources wisely. Because disturbance alters resource levels, effective management requires understanding of the ecology of disturbance. This book is the first to take a global approach to the description of both natural and anthropogenic disturbance regimes that physically impact the ground. Natural disturbances such as erosion, volcanoes, wind, herbivory, flooding and drought plus anthropogenic disturbances such as foresty, grazing, mining, urbanization and military actions are considered. Both disturbance impacts and the biotic recovery are addressed as well as the interactions of different types of disturbance. Other chapters cover processes that are important to the understanding of disturbance of all types including soil processes, nutrient cycles, primary productivity, succession, animal behaviour and competition. Humans react to disturbances by avoiding, exacerbating, or restoring them or by passing environmental legislation. All of these issues are covered in this book.Managers need better predictive models and robust data-collections that help determine both site-specfic and generalized responses to disturbance. Multiple disturbances have a complex effect on both physical and biotic processes as they interact. This book provides a wealth of detail about the process of disturbance and recovery as well as a synthesis of the current state of knowledge about disturbance theory, with extensive documentation.

Ecology and Conservation of Great Plains Vertebrates

Ecology and Conservation of Great Plains Vertebrates PDF Author: Fritz L. Knopf
Publisher: Springer Science & Business Media
ISBN: 1475727038
Category : Science
Languages : en
Pages : 329

Book Description
The frontier images of America embrace endless horizons, majestic herds of native ungulates, and romanticized life-styles of nomadie peoples. The images were mere reflections of vertebrates living in harmony in an ecosystem driven by the unpre dictable local and regional effects of drought, frre, and grazing. Those effects, often referred to as ecological "disturbanees," are rather the driving forces on which species depended to create the spatial and temporal heterogeneity that favored ecological prerequisites for survival. Alandscape viewed by European descendants as monotony interrupted only by extremes in weather and commonly referred to as the "Great American Desert," this country was to be rushed through and cursed, a barrier that hindered access to the deep soils of the Oregon country, the rich minerals of California and Colorado, and the religious freedom sought in Utah. Those who stayed (for lack of resources or stamina) spent a century trying to moderate the ecological dynamics of Great Plains prairies by suppressing fires, planting trees and exotic grasses, poisoning rodents, diverting waters, and homogenizing the dynamies of grazing with endless fences-all creating bound an otherwise boundless vista. aries in Historically, travelers and settlers referred to the area of tallgrasses along the western edge of the deciduous forest and extending midway across Kansas as the "True Prairie. " The grasses thlnned and became shorter to the west, an area known then as the Great Plains.