Results 21 to 30 of about 2,926 (236)

Distinguishing disturbance from perturbations in fire-prone ecosystems [PDF]

open access: yesInternational Journal of Wildland Fire, 2019
Fire is a necessary ecosystem process in many biomes and is best viewed as a natural disturbance that is beneficial to ecosystem functioning. However, increasingly, we are seeing human interference in fire regimes that alters the historical range of variability for most fire parameters and results in vegetation shifts. Such perturbations can affect all
Keeley, J. E., Pausas, J. G.
openaire   +2 more sources

Litter Flammability of 50 Southeastern North American Tree Species: Evidence for Mesophication Gradients Across Multiple Ecosystems

open access: yesFrontiers in Forests and Global Change, 2021
Widespread fire exclusion and land-use activities across many southeastern United States forested ecosystems have resulted in altered species composition and structure.
J. Morgan Varner   +3 more
doaj   +1 more source

Historical fire regimes in a poorly understood, fire-prone ecosystem: eastern coastal fynbos [PDF]

open access: yesInternational Journal of Wildland Fire, 2012
We characterised the historical fire regime (1900–2010) in eastern coastal fynbos shrublands, which occur in a poorly studied part of the Cape Floral Kingdom (CFK). Natural (lightning-ignited) fires dominated the fire regime. Fire seasonality decreased from west (Outeniqua region) to east (Tsitsikamma region) within the study area, and between the ...
Tineke Kraaij   +4 more
openaire   +1 more source

Evaluation of fire severity in fire prone-ecosystems of Spain under two different environmental conditions

open access: yesJournal of Environmental Management, 2020
Severe fires associated to climate change and land cover changes are becoming more frequent in Mediterranean Europe. The influence of environmental drivers on fire severity, especially under different environmental conditions is still not fully understood.
García Llamas, Paula   +4 more
openaire   +5 more sources

The effect of simulated heat-shock and daily temperature fluctuations on seed germination of four species from fire-prone ecosystems

open access: yesActa Botânica Brasílica, 2016
Seed germination in many species from fire-prone ecosystems may be triggered by heat shock and/or temperature fluctuation, and how species respond to such fire-related cues is important to understand post-fire regeneration strategies. Thus, we tested how
Talita Zupo   +2 more
doaj   +1 more source

Tanned or burned: the role of fire in shaping physical seed dormancy. [PDF]

open access: yesPLoS ONE, 2012
Plant species with physical seed dormancy are common in mediterranean fire-prone ecosystems. Because fire breaks seed dormancy and enhances the recruitment of many species, this trait might be considered adaptive in fire-prone environments.
Bruno Moreira, Juli G Pausas
doaj   +1 more source

Evolutionary ecology of resprouting and seeding in fire‐prone ecosystems

open access: yesNew Phytologist, 2014
SummaryThere are two broad mechanisms by which plant populations persist under recurrent disturbances: resprouting from surviving tissues, and seedling recruitment. Species can have one of these mechanisms or both. However, a coherent framework explaining the differential evolutionary pressures driving these regeneration mechanisms is lacking.
Pausas, J. G., Keeley, J. E.
openaire   +3 more sources

Fire and functional traits: Using functional groups of birds and plants to guide management in a fire‐prone, heathy woodland ecosystem [PDF]

open access: yesDiversity and Distributions, 2021
AbstractAimMany dry forests and woodlands worldwide are fire‐prone and support bird and plant communities shaped by fire. Changes in fire regimes, including the time between fires, have important implications for population trajectories. We studied the responses of bird and plant communities of heathy woodlands to time since the last fire, a key ...
Frederick W. Rainsford   +3 more
openaire   +2 more sources

Remote Sensing Applied to the Study of Fire Regime Attributes and Their Influence on Post-Fire Greenness Recovery in Pine Ecosystems

open access: yesRemote Sensing, 2018
We aimed to analyze the relationship between fire regime attributes and the post-fire greenness recovery of fire-prone pine ecosystems over the short (2-year) and medium (5-year) term after a large wildfire, using both a single and a combined fire regime
Víctor Fernández-García   +5 more
doaj   +1 more source

No Net Loss of Species Diversity After Prescribed Fires in the Brazilian Savanna

open access: yesFrontiers in Forests and Global Change, 2020
Although savannas are fire-adapted ecosystems, prescribing fire for biodiversity conservation remains controversial at least in some regions where savannas occur.
Giselda Durigan   +12 more
doaj   +1 more source

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