An ecological and management paradigm in ponderosa pine (Pinus ponderosa) forests is that historically recurrent surface fires maintained open forest stands dominated by large, old trees.
This was evidenced by the maintained open physis, continued growth in length and absence of deformity.
Conservancies help maintain open rangelands by keeping land together that otherwise might have been further subdivided, fenced and sold.
Validation was promoted by having several researchers performing the analysis and by maintaining open and continuous discussions within the research group in order to reach consensus about the findings.
Weddell seals are unique in being able to survive under fast ice, even in winter, by maintaining open breathing holes with their teeth.
They must have a clear and realistic purpose, and be formulated in the realization that the nation, and its technical and scientific establishments, have been incredibly well served by maintaining open channels of communication.
Management can show its support for patient safety by maintaining open communication, educating personnel, delegating the workers to identify and correct risks, stating that patient safety is a shared responsibility, and providing adequate resources [ 7].
Pine savannas are primarily managed with frequent prescribed fire (≤ 3 years) to promote diversity of flora and fauna, and to maintain open, park-like conditions needed by species such as the endangered red-cockaded woodpecker (Picoides borealis).
Fire is also beneficial to fauna found in a fire-maintained system, as it promotes availability of nesting and brood-rearing cover for ground-nesting birds (Dickson 1981, Hurst 1981, Landers 1981) and maintains open, park-like conditions needed by species such as the endangered red-cockaded woodpecker (Picoides borealis; Alavalapati et al. 2002).
Management undertaken in recent years has been essential to maintaining open areas, the most threatened by primary succession.
