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:4/6/2017)... -- Forecasts by Product Type (EAC), Biometrics, ... (Transportation & Logistics, Government & Public Sector, Utilities / ... Facility, Nuclear Power), Industrial, Retail, Business Organisation (BFSI), Hospitality ... looking for a definitive report on the $27.9bn Access ... ...
(Date:4/5/2017)... 5, 2017 Today HYPR Corp. , ... server component of the HYPR platform is officially ... end-to-end security architecture that empowers biometric authentication across Fortune ... already secured over 15 million users across the financial ... connected home product suites and physical access represent a ...
(Date:4/4/2017)... 4, 2017   EyeLock LLC , a leader ... United States Patent and Trademark Office (USPTO) has issued ... linking of an iris image with a face image ... the company,s 45 th issued patent. ... timely given the multi-modal biometric capabilities that have recently ...
Breaking Biology News(10 mins):
(Date:5/23/2017)... ... May 23, 2017 , ... Genedata, a leading provider ... the occasion with a strong presence at Bio-IT World Conference & Expo 2017 ... an invitation to all attendees to view posters on the entire range ...
(Date:5/23/2017)... , ... May 23, 2017 , ... ... as Vice President of Clinical Operations. She brings years of expertise in ... Therapeutics. From her professional foundation as a licensed occupational therapist, through a variety ...
(Date:5/22/2017)... (PRWEB) , ... May 22, 2017 , ... ... joined with other leaders of the Maryland Biohealth community in developing and issuing ... recognized Top 3 U.S. BioHealth Innovation Hub by 2023. , ...
(Date:5/19/2017)... ... May 19, 2017 , ... The University City ... with technologies ripe for commercialization, and who are affiliated with the 21 partner ... submit proposals. QED, now in its tenth round, is the first multi-institutional proof-of-concept ...
Breaking Biology Technology:
Cached News: