Cascading Effects Of Feedbacks Disease And Climate Change On Alpine Treeline Dynamics PDF Download
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Author | : Emily K. Smith-McKenna |
Publisher | : |
Total Pages | : 12 |
Release | : 2014 |
Genre | : Climatic changes |
ISBN | : |
Download Cascading Effects of Feedbacks, Disease, and Climate Change on Alpine Treeline Dynamics Book in PDF, ePub and Kindle
Whitebark pine (Pinus albicaulis) is important for tree island development in some alpine treeline ecosystems in western North America; therefore the effects of an exotic disease on whitebark pine may cascade to other species and affect how treeline responds to climate change. We developed an agent-based model to examine the interactive impacts of blister rust and climate change on treeline dynamics. Our model includes positive and negative feedback effects for population processes and infection in a neighborhood. We simulated a present-day-like whitebark pine treeline community in the northern U.S. Rocky Mountains under stable conditions, and then conditions of disease, climate amelioration, and their combination. The loss of pine to disease was only partly compensated by the effect of climate change, and resulted in less facilitation for other species?reversing the positive effects of climate amelioration. Spatially explicit simulation captured the cascading effects of neighborhood facilitation on treeline populations and patterns.
Author | : Diana F. Tomback |
Publisher | : |
Total Pages | : 22 |
Release | : 2007 |
Genre | : Blister rust |
ISBN | : |
Download Invasive Pathogens At Alpine Treeline Book in PDF, ePub and Kindle
The potential impact of invasive forest pathogens on alpine treeline dynamics has not previously been considered. Whitebark pine (Pinus albicaulis), a foundation and keystone species of subalpine forests and major component of alpine treeline in the northern Rocky Mountains of the United States and southern Canada, is infected nearly range-wide by the exotic pathogen Cronartium ribicola, which causes white pine blister rust. A major component of treeline in the northern Rocky Mountains, whitebark pine initiates tree islands on the eastern slope in northwestern Montana more than any other conifer species. Blister rust infects whitebark pine throughout the region, and both infection and mortality are already evident at treeline. We discuss the cascading ecological effects of the loss of treeline whitebark pine and expected changes in landscape vegetation patterns. Potential implications of the loss of whitebark pine for northwestern Montana treelines are examined in the context of climate change within a conceptual model. We speculate that exotic pathogens could potentially confound predictions of treeline responses to global warming in many geographic regions.
Author | : Riikka Linnakoski |
Publisher | : Frontiers Media SA |
Total Pages | : 174 |
Release | : 2020-01-10 |
Genre | : |
ISBN | : 2889633071 |
Download Forest Health Under Climate Change: Effects on Tree Resilience, and Pest and Pathogen Dynamics Book in PDF, ePub and Kindle
Author | : Yu Zeng |
Publisher | : |
Total Pages | : 160 |
Release | : 2010 |
Genre | : Ecotones |
ISBN | : |
Download Modeling Complex Dynamics at Alpine Treeline Ecotones Book in PDF, ePub and Kindle
Second, the impacts of geomorphologic factors that impose an exogenous spatial structure on alpine treeline dynamics, was examined, which shows that there is a geomorphic limit to the endogenous fractal alpine treeline dynamics. Third, the impacts of climate change that imposes an exogenous temporal structure on alpine treeline dynamics was examined, which suggests that the self-organization nature of alpine treeline dynamics will not be significantly affected by external climate change and the use of alpine treeline ecotones as potential indicator of climate change is called into question. Results of this study suggest further research using complexity theory is needed to improve our understanding of alpine treeline dynamics and their interactions with exogenous environmental factors.
Author | : Anne Munier |
Publisher | : |
Total Pages | : |
Release | : 2004 |
Genre | : Climatic changes |
ISBN | : |
Download Experimental Studies on the Effect of Climate Change on Tree-line Dynamics at Its Altitudinal Limit in the Mealy Mountains Book in PDF, ePub and Kindle
Author | : Nicholas Clifford |
Publisher | : SAGE |
Total Pages | : 753 |
Release | : 2016-05-21 |
Genre | : Science |
ISBN | : 1473908973 |
Download Key Methods in Geography Book in PDF, ePub and Kindle
"Practical, accessible, careful and interesting, this...revised volume brings the subject up-to-date and explains, in bite sized chunks, the ′how′s′ and ′why′s′ of modern day geographical study...[It] brings together physical and human approaches again in a new synthesis." —Danny Dorling, Professor of Geography, University of Oxford Key Methods in Geography is the perfect introductory companion, providing an overview of qualitative and quantitative methods for human and physical geography. This Third Edition Features: 12 new chapters representing emerging themes including online, virtual and digital geographical methods Real-life case study examples Summaries and exercises for each chapter Free online access to full text of Progress in Human Geography and Progress in Physical Geography Progress Reports The teaching of research methods is integral to all geography courses: Key Methods in Geography, Third Edition explains all of the key methods with which geography undergraduates must be conversant.
Author | : Diana F. Tomback |
Publisher | : MDPI |
Total Pages | : 173 |
Release | : 2019-01-18 |
Genre | : Environmental sciences |
ISBN | : 3038975745 |
Download Biodiversity and Conservation in Forests Book in PDF, ePub and Kindle
This book is a printed edition of the Special Issue "Biodiversity and Conservation in Forests" that was published in Forests
Author | : University of Iowa. Center for Global & Regional Environmental Research |
Publisher | : |
Total Pages | : 28 |
Release | : 2014 |
Genre | : Sustainable development |
ISBN | : |
Download Annual Report Book in PDF, ePub and Kindle
Author | : U.S. Global Change Research Program |
Publisher | : Cambridge University Press |
Total Pages | : 193 |
Release | : 2009-08-24 |
Genre | : Business & Economics |
ISBN | : 0521144078 |
Download Global Climate Change Impacts in the United States Book in PDF, ePub and Kindle
Summarizes the science of climate change and impacts on the United States, for the public and policymakers.
Author | : Intergovernmental Panel on Climate Change / Working Group Technical Support Unit |
Publisher | : |
Total Pages | : 200 |
Release | : 2008 |
Genre | : Climatic changes |
ISBN | : 9789291691234 |
Download Climate Change and Water Book in PDF, ePub and Kindle
The Technical Paper addresses the issue of freshwater. Sealevel rise is dealt with only insofar as it can lead to impacts on freshwater in coastal areas and beyond. Climate, freshwater, biophysical and socio-economic systems are interconnected in complex ways. Hence, a change in any one of these can induce a change in any other. Freshwater-related issues are critical in determining key regional and sectoral vulnerabilities. Therefore, the relationship between climate change and freshwater resources is of primary concern to human society and also has implications for all living species. -- page vii.