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Global forests capture and store significant amounts of carbon through photosynthesis. When carbon is removed from forests through harvest, a portion of the harvested carbon is stored in wood products, often for many decades. The United States Forest Service (USFS) and other agencies are interested in accurately accounting for carbon flux associated with harvested wood products (HWP) to meet greenhouse gas monitoring commitments and climate change adaptation and mitigation objectives. National-level forest carbon accounting has been in place for over a decade, but there is an increasing...

The Sequoia-Kings Canyon Wilderness was established in September of 1984 when President Ronald Reagan signed the California Wilderness Act (PL 98-425). In March 2009, President Barack Obama signed the Omnibus Public Land Management Act (PL 111-11) designating the John Krebs Wilderness and the Sequoia-Kings Canyon Wilderness Addition (all wholly contained within SEKI). Currently a total of 808,078 acres of SEKI are designated as wilderness and are a part of the National Wilderness Preservation System, wherein wilderness character is to be preserved. An additional 29,516 acres of these parks...

This User Guide was developed to help National Park Service (NPS) staff effectively and efficiently fulfill the mandate from the 1964 Wilderness Act and NPS policy to "preserve wilderness character" now and into the future. This mandate applies to all congressionally designated wilderness and other park lands that are, by policy, managed as wilderness, including eligible, potential, proposed, or recommended wilderness. This User Guide builds on the ideas in Keeping It Wild: An Interagency Strategy to Monitor Trends in Wilderness Character Across the National Wilderness Preservation System...

Pinon-juniper (PJ) woodlands have recently undergone dramatic drought-induced mortality, triggering broad scale structural changes in this extensive Southwestern US biome. Given that climate projections for the region suggest widespread conifer mortality is likely to continue into the next century, it is critical to better understand how this climate-induced change in vegetation structure alters ecosystem function (e.g., productivity, biogeochemical cycling, energy partitioning) in PJ woodlands. Data from satellite remote sensing could potentially help to gain some of this understanding....

The New World species of the genus Hylurgops LeConte are revised and Hylurgops subcostulatus Mannerheim is transferred to the new genus Pachysquamus. A revised key to the tribe Hylastini which can be used for the world fauna is presented to include Pachysquamus. Our studies suggest that the Nearctic species H. knausi Swaine is a valid taxon, distinguishable from the Mesoamerican H. planirostris Chapuis. The subspecies H. rugipennis rugipennis Mannerheim and H. r. pinifex Fitch are considered distinct species. A key to Hylurgops species of the New World is provided to accommodate the...

Evaluating the influence of observed daily weather on observed fire-related effects (e.g. smoke production, carbon emissions and burn severity) often involves knowing exactly what day any given area has burned. As such, several studies have used fire progression maps ­ in which the perimeter of an actively burning fire is mapped at a fairly high temporal resolution - or MODIS satellite data to determine the day-of-burning, thereby allowing an evaluation of the influence of daily weather. However, fire progression maps have many caveats, the most substantial being that they are rarely...

Satellite-inferred burn severity data have become increasingly popular over the last decade for management and research purposes. These data typically quantify spectral change between pre-and post-fire satellite images (usually Landsat). There is an active debate regarding which of the two main equations, the delta normalized burn ratio (dNBR) and its relativized form (RdNBR), is most suitable for quantifying burn severity; each has its critics. In this study, we propose and evaluate a new Landsat-based burn severity metric, the relativized burn ratio (RBR), that provides an alternative to...

Numerous theoretical and empirical studies have shown that wildfire activity (e.g., area burned) at regional to global scales may be limited at the extremes of environmental gradients such as productivity or moisture. Fire activity, however, represents only one component of the fire regime, and no studies to date have characterized fire severity along such gradients. Given the importance of fire severity in dictating ecological response to fire, this is a considerable knowledge gap. For the western US, we quantify relationships between climate and the fire regime by empirically describing...

Given that they can burn for weeks or months, wildfires in temperate and boreal forests may become immense (eg., 100 - 04 km2). However, during the period within which a large fire is 'active', not all days experience weather that is conducive to fire spread; indeed most of the spread occurs on a small proportion (e.g., 1 - 15 days) of not necessarily consecutive days during the active period. This study examines and compares the Canada-wide patterns in fireconducive weather ('potential' spread) and the spread that occurs on the ground ('realized' spread). Results show substantial variabili...

Try as it might, wildlife management cannot make wild living things adapt to climate change. Management can, however, make adaptation more or less likely. Given that policy is a rule set for action, policy will play a critical role in society’s efforts to help wildlife cope with the challenge of climate change. To be effective, policy must provide clear goals and be based on a clear understanding of the problem it seeks to affect. The “National Fish, Wildlife, and Plants Climate Adaptation Strategy” provides seven major goals and numerous policy related actions for wildlife management in a...