El bosque humedo de la Amazonia : epicentro mundial de la biodiversidad = La forêt humide d'Amazonie : épicentre mondial...
Early anthropogenic impact on western central African rainfrorests 2,600 y ago
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A potential human footprint on Western Central African rainforests before the Common Era has become the focus of an ongoing controversy. Between 3,000 y ago and 2,000 y ago, regional pollen sequences indicate a replacement of mature rainforests by a forest–savannah mosaic including pioneer trees. Although some studies suggested an anthropogenic inf...
Early anthropogenic impact on western central African rainfrorests 2,600 y ago
...
A potential human footprint on Western Central African rainforests before the Common Era has become the focus of an ongoing controversy. Between 3,000 y ago and 2,000 y ago, regional pollen sequences indicate a replacement of mature rainforests by a forest–savannah mosaic including pioneer trees. Although some studies suggested an anthropogenic inf...
Participation: a pillar of sustainable forest management in the Mediterranean
Partie III - Mediterranean forest-based solutions. Chapter 12 / International audience
Forêts tropicales, changements d'usage des sols et risques infectieux émergents / Forêts et santé publique
Les forêts intertropicales constituent une source exceptionnelle de diversité biologique spécifique en macro-organismes, mais elles se révèlent être aussi de véritables pépinières en micro-organismes. Ces cinquante dernières années, certains de ces micro-organismes, à l'origine présents chez des animaux forestiers ou hébergés dans l'environnement c...
The effect of deer browsing and understory light availability on stump mortality and sprout growth capacity in sessile o...
Coppice forestry is a conventional silvicultural practice that takes advantage of a tree's capacity to respond to disturbances by sprouting. Sprouting capacity is determined by many intrinsic and extrinsic factors such as parent tree age/size, understory light availability and deer browsing, which, under closed canopy conditions are important limit...
Early anthropogenic impact on western central African rainfrorests 2,600 y ago
...
A potential human footprint on Western Central African rainforests before the Common Era has become the focus of an ongoing controversy. Between 3,000 y ago and 2,000 y ago, regional pollen sequences indicate a replacement of mature rainforests by a forest–savannah mosaic including pioneer trees. Although some studies suggested an anthropogenic inf...
Forêts de montagne et changement climatique : impacts et adaptation
Les impacts du changement climatique sur les forêts de montagne sont déjà perceptibles et les prévisions nous montrent, par leurs contradictions, la complexité des phénomènes en jeu. L'objectif de cette étude bibliographique est d'abord de caractériser les principaux effets du changement climatique, principalement dans les forêts alpines, puis de p...
A methodology to assess habitat fragmentation effects through regional indexes: illustration with forest biodiversity ho...
The fragmentation of natural environments is a critical issue involving major challenges for biodiversity conservation and ecosystem management. Large-scale information on areas sensitive to fragmentation is needed to improve the effectiveness of planning efforts. One promising metric combining the landscape spatial configuration with species chara...
Unexpected impact of N availability on the interaction between Quercus and Deschampsia cespitosa
Ecological theories on species occurrence and interactions between them deeply rely on resources availability. Grasses are known for their ability to preempt belowground resources, especially nitrogen to the detriment of tree seedlings. Objective of the study was to determine how combination in contrasted soil inorganic nitrogen x light availabilit...
