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 Ecosystem Effects

Displaying 41 - 50 of 109

Linking old-growth forest composition, structure, fire history, climate and land-use in the mountains of northern México

Citation: Cortés-Montaño, Citlali; Fulé, Peter Z.; Falk, Donald A.; Villanueva-Díaz, José; Yocom, Larissa L. 2012. Linking old-growth forest composition, structure, fire history, climate and land-use in the mountains of northern México. Ecosphere 3(11):art106.

Summary:

The authors quantified the structure and composition of old-growth conifer forest stands in northwestern Mexico. They related this information to fire regime history data from Fulé et al. (2012) to determine relationships between regional climate variability, fire and forest structure since approximately 250 years ago to today.

Pattern and process of prescribed fires influence effectiveness at reducing wildfire severity in dry coniferous forests

Citation: Arkle, Robert S.; Pilliod, David S.; Welty, Justin L. 2012. Pattern and process of prescribed fires influence effectiveness at reducing wildfire severity in dry coniferous forests. Forest Ecology and Management 276:174-184.

Summary:

This article examines the relationship between vegetation and topography on prescribed fire severity and the effects on subsequent wildfire.

Bottom-up control of a northern Arizona ponderosa pine forest fire regime in a fragmented landscape

Citation: Ireland, Kathryn B.; Stan, Amanda B.; Fulé, Peter Z. 2012. Bottom-up control of a northern Arizona ponderosa pine forest fire regime in a fragmented landscape. Landscape Ecology 27(7):983-997.

Summary:

The authors investigated the relative influence of top-down climate controls versus bottom-up vegetation controls on the timing and spatial pattern of fire in a historically fragmented and patchy ponderosa pine landscape.

Characterizing fire-on-fire interactions in three large wilderness areas

Citation: Teske, Casey C.; Seielstad, Carl A.; Queen, Lloyd P. 2012. Characterizing fire-on-fire interactions in three large wilderness areas. Fire Ecology 8(2):82-106.

Summary:

The authors assessed fire-on-fire interactions in three wilderness areas to see how past fire area burned and fire severity affect subsequent fire.

Short- and long-term effects on fuels, forest structure, and wildfire potential from prescribed fire and resource benefit fire in southwestern forests, USA

Citation: Hunter, Molly E.; Iniguez, Jose M.; Lentile, Leigh B. 2011. Short- and long-term effects on fuels, forest structure, and wildfire potential from prescribed fire and resource benefit fire in southwestern forests, USA. Fire Ecology 7(3):108-121.

Summary:

The authors examined the effects of recent prescribed and resource benefit fires on the fuel loads, structure, and potential fire behavior in ponderosa pine and pinyon-juniper woodlands. Additionally, they studied the effects of repeated resource benefit fire on those same ecosystems.

Continued warming could transform Greater Yellowstone fire regimes by mid-21st Century

Citation: Westerling, Anthony L.; Turner, Monica G.; Smithwick, Erica A.H.; Romme, William H.; Ryan, Michael G. 2011. Continued warming could transform Greater Yellowstone fire regimes by mid-21st Century. Proceedings of the National Academy of Sciences 108(32):13165-13170.

Summary:

The authors projected how large fire (> 200 ha) occurrence, size, and spatial location may be affected by climate change in the forests of the Greater Yellowstone area.

Climate change in western US deserts: potential for increased wildfire and invasive annual grasses

Citation: Abatzoglou, John T.; Kolden, Crystal A. 2011. Climate change in western US deserts: potential for increased wildfire and invasive annual grasses. Rangeland Ecology & Management 64(5):471-478.

Summary:

The authors looked at the effects of climate change on invasive species establishment in western deserts. Specifically, they examined the effects of the interannual variation of temperature- and precipitation-related indicators associated with the National Fire Danger Rating System (NFDRS). Furthermore, they projected the future influence of large fire potential into the mid-21st century using downscaled CGM models.

Historical stand-replacing fire in upper montane forests of the Madrean Sky Islands and Mogollon Plateau, southwestern USA

Citation: Margolis, Ellis Q.; Swetnam, Thomas W.; Allen, Craig D. 2011. Historical stand-replacing fire in upper montane forests of the Madrean Sky Islands and Mogollon Plateau, southwestern USA. Fire Ecology 7(3):88-107.

Summary:

The authors reconstructed fire dates and stand-replacing fire patch sizes using four dendrological approaches to document the historical role of high severity and/or stand-replacing fire in upper elevation mixed-conifer, aspen, and spruce-fir forests.

Post-1935 changes in forest vegetation of Grand Canyon National Park, Arizona, USA: Part 2 - mixed conifer, spruce-fir, and quaking aspen forests

Citation: Vankat, John L. 2011. Post-1935 changes in forest vegetation of Grand Canyon National Park, Arizona, USA: Part 2 - mixed conifer, spruce-fir, and quaking aspen forests. Forest Ecology and Management 261(3):326-341.

Summary:

The author resampled vegetation study plots originally sampled in Grand Canyon National Park in 1935 to document changes in forest structure and composition.

Long-term effects of prescribed fire on mixed conifer forest structure in the Sierra Nevada, California

Citation: van Mantgem, Phillip J.; Stephenson, Nathan L.; Knapp, Eric; Battles, John; Keeley, Jon E. 2011. Long-term effects of prescribed fire on mixed conifer forest structure in the Sierra Nevada, California. Forest Ecology and Management 261(6):989-994.

Summary:

The authors monitored prescribed fire in old-growth mixed conifer stands for eight consecutive years to examine the long-term effects on forest structure and how the actual results compared to restoration objectives.