HOME >> BIOLOGY >> NEWS
USGS studies wildfire ecology in the western United States

Introduction

Dr. Craig Allen, a USGS research ecologist with the Midcontinent Ecological Science Center, is speaking of the New Mexico forest ecosystems he knows best, but his words apply equally well to most of western North America. "If you're trying to understand past and present patterns on the landscape," Allen says, "first of all you need to know something about fire."

From the northern Rocky Mountains to the Southwest borderlands, wildland fires have burned and rejuvenated western forests over the course of millennia. And forests are not the only environments affected by fire; to a greater or lesser degree, fire influences the structure and dynamics of nearly all of the West's terrestrial ecosystems. In some, such as the chaparral brushlands of California, fire has been a strong force guiding the evolution of local plant life, and a constant regulator of ecological communities. In many desert habitats, on the other hand, fires have been far less frequent, but represent a more severe disturbance when they do occur.

Scientists and managers increasingly recognize the importance of fire as a natural component of ecological systems. But while fire is often a beneficial process, it is always, in the short term, a destructive one. The presence of fire has usually been seen as incompatible with both human land-use practices and aesthetics, and for over a century fires have been actively suppressed throughout the West.

The negative consequences of forest fire suppression can now be clearly seen. In many areas, disruption of the natural fire regime has produced overcrowded forests with vast accumulations of dry fuel. Blazes that break out under these conditions may be far more destructive than the normal fires of centuries past and are often extremely difficult or impossible to control. The absence of a regular fire cycle has also harmed many plant and animal species whose life histories are tightly linked to fire d
'"/>

Contact: Catherine Haecker
catherine_haecker@usgs.gov
707-826-5645
United States Geological Survey
17-Sep-1999


Page: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Related biology news :

1. Rensselaer marks the opening of the center for biotechnology and interdisciplinary studies
2. UCSD undergraduates participate in collaborative studies abroad on cyberinfrastructure
3. Scientist honored for studies of genetic influence on chemotherapy, tumor development
4. $5 million grant funds partnership, studies of minority-based issues in reproductive health
5. Synthetic hormone used in contraceptives and HRT produces negative effects in monkey studies
6. $5.5 million awarded to tree-ring research and climate studies
7. Pancreatic cancer blood test & gene studies show promise
8. Two studies weigh in on low-carb diets
9. Animal studies show promise treating severe chronic pain
10. New studies show Curves Program raises metabolic rate in overweight and sedentary women
11. Florida Tech researchers win $912,700 grant for cell studies

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/24/2017)... 2017 The Controller General of Immigration from Maldives ... Algeen have received the prestigious international IAIR Award for the most ... Reading ... Maldives ... Abdulla Algeen (small picture on the right) have received the IAIR award ...
(Date:3/23/2017)... Research and Markets has announced the addition of the "Global ... 2025" report to their offering. ... The Global Vehicle Anti-Theft System Market is ... next decade to reach approximately $14.21 billion by 2025. ... all the given segments on global as well as regional levels ...
(Date:3/22/2017)... LIVERMORE, Calif. , March 21, 2017 ... recognition analytics company serving law enforcement agencies, announced today ... Sheridan as director of public safety business development. ... of diversified law enforcement experience, including a focus on ... Vigilant. In his most recent position, Mr. Sheridan served ...
Breaking Biology News(10 mins):
(Date:4/20/2017)... INDIANAPOLIS , April 20, 2017  Eli Lilly ... Phase 2 data evaluating galcanezumab for the prevention of ... meeting, which will take place April 22-28, 2017, in ... will present four abstracts at AAN, including safety and ... and factors associated with a reduction in monthly migraine ...
(Date:4/20/2017)... QC , April 20, 2017 /PRNewswire/ - Prometic Life Sciences ... presented new results at the International Liver Congress ("ILC") 2017 ... ("EASL") in Amsterdam on the positive ... a mouse model of obesity and metabolic syndrome. ... According to Dr. Lyne Gagnon, Vice-President ...
(Date:4/20/2017)... Dutch philosopher Koert van Mensvoort - founder of the Next ... in Eindhoven - has written a ,Letter to Humanity, in support ... avoid becoming a slave and victim to its own technology, but to employ ... ... van Mensvoort – founder of the Next Nature Network and Fellow of ‘Next ...
(Date:4/19/2017)... ... , ... A number of new instruments have recently emerged to accommodate different ... Protein and Cell Analysis Education Webinar Series , will focus on advances in the ... future applications. , Many flow cytometers have unique capabilities and the Attune NxT ...
Breaking Biology Technology:
Cached News: