Analyse de la réponse de la végétation aux trouées naturelles dans une futaie âgée de Quercus ilexL. en Corse (île Méditerranéenne)

1998 ◽  
Vol 28 (8) ◽  
pp. 1125-1134 ◽  
Author(s):  
Christophe Panaïotis ◽  
Roger Loisel ◽  
Maurice Roux
Keyword(s):  
Structural Organization ◽  
Mediterranean Climate ◽  
Common Species ◽  
Plant Succession ◽  
Random Permutations ◽  
Forest Species ◽  
Natural Evolution ◽  
Statistical Tools ◽  
Old Growth ◽  
Old Growth Forests

Green oak (Quercus ilexL.) is the most common forest species growing under Mediterranean climate. Because of important past anthropic perturbations, green oak old-growth forests are very unfrequent and constitute, for that reason, a most interesting domain where to analyze the natural evolution of green oak stands. Such forests exist in Corsica and this study deals with vegetation successions as they occur in naturally occuring gaps. Because of the taxonomic poorness (32 species), two statistical tools (canonical correspondence analysis and random permutations) were used to take into account vegetation spatial structure according to types (herbaceous, shrubby, or arborescent). These statistical analyses show that plant succession does not really exist in gaps of green oak old-growth forests but rather a structural organization of common species found in the maquis. Results support the hypothesis about the internal dynamics of these forests going through a maquis phase.

scholarly journals Porosty – wskaźniki niżowych lasów puszczańskich w Polsce [Lichens – indicators of lowland old-growth forests in Poland]

2014 ◽  
Vol 91 ◽  
pp. 223-239 ◽  
Author(s):  
Krystyna Czyżewska ◽  
Stanisław Cieśliński
Keyword(s):  
Human Activity ◽  
Native Species ◽  
National Park ◽  
Forest Species ◽  
Forest Environment ◽  
Old Growth ◽  
Old Growth Forests ◽  
The Status ◽  
Białowieża National Park ◽  
And Function

Old-growth forests arę natural biocoenoses, which developed and function without apparent impacts of human activity, which are adjusted to their habitats and remain in perfect biocoenotic equilibrium. In a forest environment there occurs a high diversity of seminal and cryptogamic plants and fungi, including lichenized fungi (lichens). The disappearance of old-growth forests affected by human activity or their strong fragmentation and isolation are the greatest danger for numerous typically forest lichens. On the basis of selected lichens - indicators of old-growth forests we undertook an attempt at detecting well-preserved lowland areas, which are at present biocentres of typically forest species. The most important features of indicatory species were considered the following: they are native species growing exclusively in forest communities; they are permanent components of forest biocoenoses, while their biological-ecological properties are adjusted to the phytoclimate and biotopes of forest environment; they inhabit specific forest habitats; they are typical epiphytes and epixylites inhabiting old live trees and dead wood of various stages of decomposition; they do not grow in managed forests. A total of 71 species that will serve the function of obligatory indicators (IND) of old-growth forests were selected for Poland's natural lowland forests (see Table 1). 53 of these species are presently strongly threatened, possessing the status of the Red List Categories (CR, EN and VU). The following 10 forest areas were evaluated: Białowieża National Park (58 IND), the reserves of Budzisk (34 IND), and Starożyn (29 IND) in North-Eastern Poland, reserves of Borki (29 IND), Las Warmiński (17 IND) and Krutynia (18 IND) in Northern Poland, and the reserves of Spała (15 IND), Zagożdżon (13 IND), Białe Ługi (10 IND) and Żyznów (4 IND) in Central Poland (Table 2). The highest number of old-growth forests occur in the Białowieża National Park (84%). This value indicates that the Białowieża Ntional Park may now be considered a model comparitive object, the biocentre of epiphytic and epixylic forest species of old-growth forests representing the total ecological amplitude of biodiversity and occupied habitats. In all the 10 biocentres there occur 66 indicatory species of old-growth forests, the highest number of which, ca 88%, occur in the Białowieża National Park, while 51.5% in the Budzisk reserve in the Knyszyńska Forest.

scholarly journals Insects inhabiting two old-growth forest polypore species

2001 ◽  
Vol 12 (1) ◽  
pp. 3-14 ◽  
Author(s):  
Atte Komonen ◽  
Juha Siitonen ◽  
Marko Mutanen
Keyword(s):  
Forest Species ◽  
Insect Communities ◽  
Old Growth ◽  
Distribution Maps ◽  
Old Growth Forest ◽  
Old Growth Forests ◽  
Eastern Finland

This paper describes insect communities inhabiting two old-growth forest polypores Amylocystis lapponica and Fomitopsis rosea (Polyporaceae). Basidiocarps of both species were collected from old-growth forests in southern and eastern Finland and Russia. Samples of A. lapponica and F. rosea basidiocarps revealed insect communities of more than 50 species each, including many rare old-growth forest species. Here we report the rearing results and discuss the biology of the beetle Hallomenus sp. (Melandryidae) inhabiting A. lapponica and the beetle Cis dentatus (Cisidae), the moth Agnathosia mendicella (Tineidae) and the fly Elfia cingulata (Tachinidae) inhabiting F. rosea. Distribution maps of C. dentatus and A. mendicella in Finland are given.

Northwest Forest Plan–the first 15 years (1994–2008): status and trends of late-successional and old-growth forests

2011 ◽  
Author(s):  
Melinda Moeur ◽  
Janet L. Ohmann ◽  
Robert E. Kennedy ◽  
Warren B. Cohen ◽  
Matthew J. Gregory ◽  
...  
Keyword(s):  
Old Growth ◽  
Status And Trends ◽  
Old Growth Forests ◽  
Northwest Forest Plan

Alternatives to clearcutting in the old-growth forests of southeast Alaska: study plan and establishment report.

2000 ◽  
Author(s):  
Michael H. McClellan ◽  
Douglas N. Swanston ◽  
Paul E. Hennon ◽  
Robert L. Deal ◽  
Toni L. de Santo ◽  
...  
Keyword(s):  
Old Growth ◽  
Southeast Alaska ◽  
Old Growth Forests ◽  
Study Plan

scholarly journals Our New Cathedrals: Spirituality and Old-Growth Forests in Western Australia

2006 ◽  
Vol 3 (1) ◽  
Author(s):  
David Worth
Keyword(s):  
Social Movements ◽  
Western Australia ◽  
The State ◽  
The South ◽  
Old Growth ◽  
The Past ◽  
South West ◽  
Old Growth Forests ◽  
Heated Debate ◽  
Policy Proposals

Over the past 30 years in Western Australia (WA), there has been heated debate about the future use of the remaining karri and jarrah forests in the south-west of the State. This debate revolves around policy proposals from two social movements: one wants to preserve as much of the remaining old-growth forests as possible, and an opposing movement supports a continued

Gender-related distributions of Fraxinus mandshurica in secondary and old-growth forests

2010 ◽  
Vol 36 (1) ◽  
pp. 55-62 ◽  
Author(s):  
Chunyu Zhang ◽  
Xiuhai Zhao ◽  
Lushuang Gao ◽  
Klaus von Gadow
Keyword(s):  
Fraxinus Mandshurica ◽  
Old Growth ◽  
Old Growth Forests

A comparison of different survey methods for assessing gap parameters in old-growth forests

2011 ◽  
Vol 262 (5) ◽  
pp. 886-893 ◽  
Author(s):  
Shin-Ichi Yamamoto ◽  
Naoyuki Nishimura ◽  
Takeshi Torimaru ◽  
Tohru Manabe ◽  
Akemi Itaya ◽  
...  
Keyword(s):  
Survey Methods ◽  
Old Growth ◽  
Old Growth Forests
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