You are here

Keyword: disturbance

The fundamentals of belowground bud banks

Science Spotlights Posted on: August 28, 2020
Similar to a seed bank, buds can be stored in the soil over time to form a bud bank. These belowground bud banks are the primary source of seasonal regrowth in most plant communities and are crucial to plant community recovery following disturbance. We summarized the current knowledge of belowground bud banks and their role in maintaining plant population, community, and ecosystem function following disturbance and during climatic variability. 

Life in interstitial space: Biocrusts inhibit exotic but not native plant establishment in semi-arid grasslands

Publications Posted on: August 17, 2020
Exotic plant species commonly exploit disturbances more successfully than native plants. This outcome is widely attributed to the fact that disturbance reduces biotic resistance from native plant competitors. However, biocrusts, communities of mosses, lichens, and micro‐organisms, are a prominent component of semi‐arid grasslands occurring in the interstitial spaces between vascular plants.

Natural fuels

Publications Posted on: August 10, 2020
Wildland fuelbeds are diverse collections of biomass categorized specifically to compute fire behavior and effects. When wildland fuelbeds are created by solely “natural” processes, fire scientists, and managers often refer to these as natural fuels (Fig. 1). NWCG (2018) defines natural fuels as fuels resulting from natural processes and not directly generated or altered by land management practices.

Historical range and variation (HRV)

Publications Posted on: August 10, 2020
Many ecosystems and landscapes are experiencing rapid and potentially persistent changes as the result of complex and potentially novel interactions of anthropogenic climate changes; shifting fire regimes; exotic plant, insect, and pathogen invasions; and industrial, agricultural, and urban development (Moritz and Agudo 2013; Joyce et al. 2014; Bone et al. 2016; Kolb et al. 2016; Smith et al. 2016; Stephens et al. 2016; Schoennagel et al.

Fire ecology

Publications Posted on: August 10, 2020
Wildland fire is perhaps the most influential disturbance over vast areas in the modern world (Bowman et al. 2009). Fire is both a natural and anthropogenic disturbance influencing the distribution, structure, and functioning of terrestrial ecosystems around the world (Bond et al. 2005; Scott et al. 2014).

Post-fire tree mortality

Publications Posted on: August 10, 2020
By killing trees, wildland fires influence ecosystems in many ways, including limiting ecosystem productivity, altering resource availability, and changing the structure and composition of vegetation (Bond and Keeley 2005). These changes can have both positive and negative impacts on carbon storage, biodiversity conservation, hydrologic processes, and economic and social services (Bowman et al. 2009).

Fire and bark beetle interactions

Publications Posted on: August 10, 2020
Wildland fire and bark beetle outbreaks are both large disturbances in North American forests with the potential to interact over spatial and temporal scales (Hicke et al. 2016; Raffa et al. 2008). The order of the disturbances, fire before bark beetles or fire after bark beetles, influences the outcome of the interaction.

Impacts of mountain pine beetle outbreaks on lodgepole pine forests in the Intermountain West, U.S., 2004–2019

Publications Posted on: July 31, 2020
Mountain pine beetle, Dendroctonus ponderosae Hopkins (Coleoptera: Curculionidae), is the most important forest insect in western North America. We determined causes and rates of tree mortality and changes in forest structure and composition associated with D. ponderosae outbreaks in the Intermountain West, U.S.

Evidence of widespread topoclimatic limitation for lower treelines of the Intermountain West, United States

Publications Posted on: July 27, 2020
Many forests in dry mountain regions are characterized by a lower elevational treeline. Understanding the controls on the position of lower treeline is important for predicting future forest distributional shifts in response to global environmental change.

Proceedings of the Fire Continuum-Preparing for the future of wildland fire; 2018 May 21-24; Missoula, MT

Publications Posted on: July 22, 2020
The Fire Continuum Conference, co-sponsored by the Association for Fire Ecology and the International Association of Wildland Fire, was designed to cover both the biophysical and human dimensions aspects of fire along the fire continuum. This proceedings includes many of topics covered during the conference - including pre-fire planning and management, strategies during an incident, and post-fire effects and management options.

Pages