نتایج جستجو برای: fire ecology
تعداد نتایج: 94759 فیلتر نتایج به سال:
Studying infrequent phenomena (e.g. hurricanes) and slow processes (e.g. forest regeneration) greatly challenges the ecological techniques of real-time studies. By combining the two relatively new approaches of paleotempestology and fine-resolution palynology, this study provides insight into the impacts of hurricanes and the post-hurricane regeneration of forests. I analyzed a 5-m sediment cor...
Jon E. Keeley and Philip W. Rundel US Geological Survey, Western Ecological Research Center, Sequoia-Kings Canyon Field Station, Three Rivers, CA 93271, USA Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA 90095-1606, USA Center for Embedded Networked Sensing, University of California, Los Angeles, CA 90095-1606, USA *Correspondence: E-mail: jon_keeley@u...
Abstract Background The structure and function of fire-prone ecosystems are influenced by many interacting processes that develop over varying time scales. Fire creates both instantaneous long-term changes in vegetation (defined as live, dead, decomposing plant material) through combustion, heat transfer to living tissues, subsequent patterns recovery. While fuel available for combustion may be...
set up to see who can catch the most. The Environment Education Foundation hosted its third ‘lionfish derby’ last month off Florida, outside the reserve, with more than $3,000 in prize money for the team catching the most fish — 109 were killed. In the waters around the Bahamas, which don’t have the same protection as Florida Keys, more than 2,000 lionfish have been killed over the past two yea...
Modern ecology often emphasizes the distinction between traditional theories of stable, environmentally structured communities and a new paradigm of disturbancedriven, nonequilibrium dynamics. However, multiple hypotheses for observed vegetation patterns have seldom been explicitly tested. We used multivariate statistics and variation partitioning methods to assess the relative influences of en...
Forest fire brings forest destruction as an important part of human environments, air pollution, and the loss of wealth and facilities, and endangers the lives of human beings in the vicinity of the forest. It is one of the examples of natural crises and is considered to be a crisis management. Identifying the effective factors in the occurrence of fire and hazard zoning is one of the basic too...
This study was conducted to investigate the effects of applying methods andamount of ammonium polyphosphate (0, 2 and 4 wt%) on fire retardancy andmechanical properties of wood flour/polypropylene composites. The resultsshowed that addition of fire retardant improved the mechanical properties such astensile and flexural strengths and fire retardancy of composites. But by increasingof fire retar...
California has experienced increasingly severe autumn wildfires over the past several decades, which have exacted a rising human and environmental toll. Recent fire climate science research demonstrated clear link between worsening change, mainly though vegetation-drying effect of temperatures shifting precipitation seasonality. New work by Lukovi? et al. (2021) explores observed changes in Cal...
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