Treesearch

This work, in three volumes, provides background on philosophy, processes, plant materials selection, site preparation, and seed and seeding equipment for revegetating disturbed rangelands, emphasizing use of native species. The 29 chapters include guidelines for planning, conducting, and managing, and contain a compilation of rangeland revegetation research conducted over the last several decades to aid practitioners in reestablishing healthy communities and curbing the spread of invasive species. Volume 1 contains the first 17 chapters plus the index. Volume 3 contains chapters 24-29...

This proceedings presents a compilation of 20 manuscripts and five posters summarizing results of research studies and management projects conducted throughout the United States in areas with special natural resource values. Topics include the restoration of various fire dependent forest ecosystems, studies of historical ecology, use of genetics in silviculture, development of old growth and late-successional prescriptions, documenting natural regeneration in burned areas, comparisons of cutting methods, coping with advancing blister rust, delineation of rare aspen forests, two-aged...

Spruce aphid, Elatobium abietinum (Walker), is a new invasive pest in high-elevation forests of southwestern USA. Plots in the White Mountains of Arizona were evaluated over several years to assess the extent and severity of damage in high-elevation forests and to identify tree and site characteristics associated with defoliation and mortality. Large areas were defoliated in each of 4 recent outbreaks. Impact from a single defoliation episode included an overall mortality of 10.3% to Picea engelmannii Parry, 24%–41% in severely defoliated trees. Defoliation severity was much greater on P....

The use of native plants for rehabilitation after wildfires and restoration of disturbed wildlands is being encouraged by various BLM programs, initiatives, and policies. Examples include the 2001 Interior Appropriations Bill, the Great Basin Restoration Initiative, Departmental guidance (DOI Emergency Stabilization and Rehabilitation Manual), Executive Order 13112 (Invasive Species – 2/99) and the BLM’s Standards for Rangeland Health. This project integrates several proposals to increase native plant production and use within the Great Basin utilizing an applied science approach in a...

This document is a guide to the Ribes of Colorado and New Mexico and the rust fungi which infect them. Information is presented for 15 species of Ribes with diagnostic, vegetative features and notes on their geographic and ecological distribution. The guide is intended as a field aid in evaluating sites for blister rust hazard to white pine from associated ribes. Leaf rusts found on ribes are also described as a means for distinguishing them from white pine blister rust. The significance of each species to forest management is discussed.

Both researchers and managers cite barriers to incorporating the best available science into land management. This paper outlines a tool that can be used strategically to obtain broad application of new scientific knowledge and technology. The overarching premise of the Diffusion of Innovations theory is that it takes time for individuals, and society as a whole, to incorporate innovative concepts and techniques into established approaches and practices. The amount of time depends on characteristics of the innovation and individuals who might adopt the innovation, as well as established...

The George Wright Society (GWS) was founded in part to promote the application of knowledge to the protection, preservation, and management of parks and reserves. Recognizing that much of the knowledge needed for sound resource stewardship comes from science, the 1998 National Parks Omnibus Management Act (P.L. 105-391) directed the secretary of the interior “to assure that management of units of the National Park System is enhanced by the availability and utilization of the highest quality science and information” (quoted in Harmon 1999). Attendees at the GWS/CR2003 conference expressed...

This field guide - designed for use by people with minimal botanical training - is an identification aid for nearly 200 plant species having ecological indicator value in northern Idaho forest habitat types. It contains line drawings, simplified taxonomic descriptions, characteristics tables, conspectuses, and keys. It emphasizes characteristics useful for field identification of many common and special interest plants. This is not a comprehensive taxonomy of northern Idaho flora.PLEASE NOTE: This is a revision and replaces INT-GTR-180: Field guide to forest plants of northern Idaho.

Stream temperature is a fundamental physical factor that affects the distribution and abundance of salmonids, but empirical inconsistencies exist regarding the nature of this relationship in wild populations. We sampled trout populations composed primarily of cutthroat trout Oncorhynchus clarki but also including brown trout Salmo trutta and brook trout Salvelinus fontinalis at 102 reaches on 24 first- to fourth-order streams across a thermally diverse montane landscape. Curves fit to scatterplots of density and biomass versus mean July-August stream temperatures suggested nonlinear,...

Over the past decade, an increase in larger wildland fires has converged with rapid growth in the wildland-urban interface. Suppression resources, including firefighters, equipment and money, are pressed to their limits. Attacking every fire with equal priority is not an-option, as some play an essential role in keeping forests healthy.