scholarly journals Twenty‐five years of tree demography in a frequently burned oak woodland: implications for savanna restoration

Ecosphere ◽  
2021 ◽  
Vol 12 (12) ◽  
Author(s):  
Mark A. Davis
Keyword(s):  
Oak Woodland ◽  
Tree Demography

Baumartenwechsel in den Walliser Waldföhrenwäldern verstärkt nach grossen Störungen

2018 ◽  
Vol 169 (5) ◽  
pp. 260-268 ◽  
Author(s):  
Thomas Wohlgemuth ◽  
Violette Doublet ◽  
Cynthia Nussbaumer ◽  
Linda Feichtinger ◽  
Andreas Rigling
Keyword(s):  
Scots Pine ◽  
Forest Fire ◽  
Tree Regeneration ◽  
Fire Disturbance ◽  
Pine Forests ◽  
The Past ◽  
Vegetation Shift ◽  
Tree Demography ◽  
Scots Pine Forests ◽  
High Share

Vegetation shift in Scots pine forests in the Valais accelerated by large disturbances In the past dozen years, several studies have concluded a vegetation shift from Scots pine to oak (pubescent and sessile) forests in the low elevated zones of the Valais. It is, however, not fully clear in which way such a vegetation shift actually occurs and on which processes such a shift would be based. Two studies, one on the tree demography in the intact Pfynwald and the other on the tree regeneration on the large Leuk forest fire patch, serve to discuss different aspects of the shift from Scots pine to oak. The forest stands of Pfynwald consist of 67% Scots pines and 14% oaks. Regenerating trees are 2–3.5 times more frequent in small gaps than under canopy. In gaps of the Upper Pfynwald, seedlings and saplings of Scots pine are three times more abundant than oaks, while both species regenerate in similar quantities under canopy. In the Lower Pfynwald, young oaks – especially seedlings – are more frequent than Scots pines. A different process is going on at the lower part in the Leuk forest fire patch where Scots pines prevailed before the burn of 2003. While Scots pines regenerate exclusively close to the edge of the intact forest, oaks not only resprout from trunk but also profit from unlimited spreading of their seeds by the Eurasian jay. Regeneration from seeds are hence observed in the whole studied area, independent of the proximity of seed trees. After the large fire disturbance, a mixed forests with a high share of oaks is establishing, which translates to a rapid vegetation shift. The two trajectories are discussed in the light of climate change.

Effects of Repeated Captures on Body Mass and Survival of Dusky-Footed Woodrats in a California Oak Woodland

2013 ◽  
Vol 58 (3) ◽  
pp. 305-313 ◽  
Author(s):  
Michael A. Hardy ◽  
James M. Zingo ◽  
William D. Tietje
Keyword(s):  
Body Mass ◽  
Oak Woodland

scholarly journals Tree demography in an undisturbed Dipterocarp permanent sample plot at Uppangala, Western Ghats of India

Ecology ◽  
2011 ◽  
Vol 92 (6) ◽  
pp. 1376-1376 ◽  
Author(s):  
Raphaël Pélissier ◽  
Jean-Pierre Pascal ◽  
N. Ayyappan ◽  
B. R. Ramesh ◽  
S. Aravajy ◽  
...  
Keyword(s):  
Western Ghats ◽  
Sample Plot ◽  
Tree Demography ◽  
Western Ghats Of India ◽  
Permanent Sample Plot

Ecological Restoration of an Oak Woodland within the Forest-Prairie Ecotone of Kansas

2018 ◽  
Vol 65 (1) ◽  
pp. 48-58 ◽  
Author(s):  
G A Pabodha Galgamuwa ◽  
Charles J Barden ◽  
Jason Hartman ◽  
Thad Rhodes ◽  
Nicholas Bloedow ◽  
...  
Keyword(s):  
Ecological Restoration ◽  
Oak Woodland

Adaptive Management on Sustainability of Cork Oak Woodlands

2011 ◽  
pp. 437-449 ◽  
Author(s):  
Nuno de Almeida Ribeiro ◽  
Peter Surový ◽  
António Cipriano Pinheiro
Keyword(s):  
Carbon Sequestration ◽  
Adaptive Management ◽  
Management Practices ◽  
Cork Oak ◽  
Oak Woodland ◽  
Oak Woodlands ◽  
Change Environment ◽  
Knowledge Based ◽  
Cork Production ◽  
System Sustainability

The cork oak woodland production systems result from the integration of conflicting activities in the same space creating the need of constant search of equilibrium between its components in order to achieve sustainability. In a climate change environment, associated with recent modifications in rural societies, adaptive management concepts are needed so as to maintain cork oak woodland systems sustainable. Nowadays/Currently cork oak woodlands are facing disturbances that are affecting the production system sustainability both by intensification of the activities undercover- that leads to a lack of regeneration and consequent disappearing of the crown cover, loss of cork production and site degradation mainly by soil loss-, or by the abandonment that conducts to an invasion of shrubs and other oaks increasing the competition (reducing cork production) and the risk of forest fire. Only adaptive management techniques associated with growth models and decision support systems, constructed in knowledge based monitoring system, are able to prevent cork wood land decline with the adoption of management practices focused in long term objectives. For the present study it was selected a set of permanent plots according with site quality and stand age and structure. Simulation studies results indicates that cork oak woodland system sustainability (both economical and ecological) is supported in regeneration events associated with the shrub control techniques without soil mobilization with strong dependency of cork prices and valuation of carbon sequestration, especially in the less productive soils. Without modification of actual funding policies and the valuation of carbon sequestration, the system faces increased risks of decline due to the maintenance of actual non sustainable management practices by the stake holders driven by their financial needs. This study is particularly relevant regarding that woodlands dominate the landscape of the south-western Iberian Peninsula, occupying approximately 3.1 million hectares in Spain and 1.2 million hectares in Portugal.

Sign in / Sign up

Export Citation Format

Share Document