Wildfires are increasingly understood as an ecological driver within the entire Arctic biome. soils naturally store large quantities of C, peat has formed throughout Holocene. For Siberian Arctic, we used observations from MODIS remote sensing instrument to document changes in frequency, geographic extent, and seasonal timing wildfires well vegetation productivity (GPP, NPP, EVI). We also corre...

This paper examines the relationship between collaborative disaster mapping and conceptions of risk. It looks at improvised mapmaking during the 2007 wildfires in Southern California to identify and analyze social and technological issues in creating a shared understanding through collaboration. By comparing and contrasting two different, yet intertwined, mapping practices this paper focuses on...

Forest resilience to climate change is a global concern given the potential effects of increased disturbance activity, warming temperatures and increased moisture stress on plants. We used a multi-regional dataset of 1485 sites across 52 wildfires from the US Rocky Mountains to ask if and how changing climate over the last several decades impacted post-fire tree regeneration, a key indicator of...

N aturallarge (catastrophic) disturbances are important because of their potential long-lasting impact on their surroundings, but underlying differences between frequent small and less common large disturbances are not well understood (Turner and Dale 1997, Romme et al. 1998, Turner and Dale 1998, chapter 4 of this book). Smaller disturbances may be better understood given their relative abunda...

California shrubland wildfires are increasingly destructive, and it is widely held that the problem has been intensified by fire suppression, leading to larger, more intense wildfires. However, analysis of the California Statewide Fire History Database shows that, since 1910, fire frequency and area burned have not declined, and fire size has not increased. Fire rotation intervals have declined...

The manuscript presents so far unpublished high-quality aircraft measurements of CO2, CO and CH4 from three large wildfires and one prescribed fire in mixed conifer forests of the northwestern United States. From these measurements, the author calculates emission factors (EF) for these species and analyses the relationship between observed modified combustion efficiency (MCE) and EFCH4. The aut...

• Natural and human-caused wildfires have long shaped North American landscapes. • A national focus on reducing fire fuels is opening a door for targeted grazing. • Targeted grazing typically tackles four fire fuel types – grass, shrub, slash, and timber. • Knowledge of fuel characteristics and species foraging habits lays the groundwork for developing grazing prescriptions. • Ecological object...