The Milo River in Guinea is one of the tributaries of Upper Niger. Its basin has a semi-arid climate with alternating dry and wet seasons in a biogeographic context of savannah. The West African monsoon brings rain between June and September with a long dry period affecting river levels and...

To better understand the impact of climatic factors and the influence of habitat diversity on the decline of cedar forests in the Aurès range, a dendrochronological approach based on the relationship between tree rings and climate was adopted and applied in six stations located 60 km apart in two...

This study was made in the forests of Senalba Gharbi, Senalba Chergui and Sehary Guebli, in the semi-arid zone of Djelfa (Algerian Saharan Atlas), which is characterized by rainfall of 300 to 400 mm/year. These are the last tree stands with Aleppo pine, Pinus halepensis, growing at the edge of the...

The Pinus mugo complex reaches a high degree of morphologic diversity in central Europe. This morphologic diversity has been described for more than two centuries by an abundance of specific and infraspecific epithets ostensibly aimed at naming all the types of high elevation or peat-bog conifers....

Cork oak (Quercus suber) stands represent most of the forest areas in northwest Tunisia. The preservation of these forests, constantly degraded for several years, constitutes an outstanding ecological issue. Dendrochronological study of five cork oak populations in western Tunisia aims at...

Over the last decade, dam removal has been promoted to enhance biological continuity along French river systems. However, such policies raise many operational and scientific issues such as social acceptability, integration of various uses of rivers, the real impact on river ecosystems, etc. In this ...

The intra-annual rhythms of diameter growth is known for only a very few tropical African timber species. For this study, we used several methods in combination - sequential cambium marking, anatomical analysis and growth ring measurements - to determine the periodicity and variations of diameter...

The relationships between climate and radial growth from 1967 to 2010 in nine Aleppo pine stands in the Ouarsenis range (north-western Algeria) were studied according to station-specific factors (substrate, altitude, exposure and age of the trees) using dendro-chronological methods, with an...

Dendroecology consists in estimating the sensitivity to climate of a forest stand by building an mean tree-ring chronology using a sample of trees. Choice of samples may have significant consequences on the estimation of climate signal derived from chronologies of ring widths, and therefore on the...

Significant warming already observed in Europe and in France together with predictions made at the end of the 20th century raise questions in the forestry and forest-based community about the sustainability of species and ecosystems in this rapidly changing context. A dendroclimatological approach...