In Southeast Alaska, many stands of yellow-cedar (Callitropsis nootkatensis (D. Don) Oerst. ex D.P. Little; hereinafter “YC”) contain numerous standing, dead snags. Snag-age estimates based on tree morphology have been used to support the interpretation that a warming climate after ca. 1880 has triggered unprecedented YC dieback. Here, we present new snag longevity by cross-dating 61 snags with...

Stable oxygen isotope dendrochronology is an effective precision-dating method for fast grown, invariant (complacent) tree-rings and trees growing in moist, temperate climatic regions where growth may not be strongly controlled by climate. The works because preserve a strong common isotopic signal, from summer precipitation, therefore do need to physiologically stressed record dating signal. Th...

Dendrochronology has been applied around the world over decades to reconstruct historical geomorphological events and climatic conditions. Traditionally, this research conducted using trees (conifers as well broad-leaved trees) but, in last few decades, several shrub dwarf species have also shown be useful for dendrochronological purposes. This study assesses potential of mountain avens (Dryas ...

Monitoring temporal variation of streamflow is necessary for many water resources management plans, yet, such practices are constrained by the absence or paucity data in rivers around world. Using a permanent river north Iran as test site, machine learning framework was proposed to model three periods growing seasons based on tree-rings and vessel features Zelkova carpinifolia species. First, f...

*Correspondence: Joël Guiot, Centre Europen de Recherche et d’Enseignement des Géosciences de l’Environnement, ECCOREV, Labex OT-Med, CNRS and Aix-Marseille University, Europole Mediterraneen de l’Arbois BP 80, Aix-en-Provence, France e-mail: [email protected] Dendrochronology (i.e., the study of annually dated tree-ring time series) has proved to be a powerful technique to understand tree-growth...

Stable carbon isotope (δ(13)C) series were developed from analysis of sequential radial wood increments from AD 1850 to AD 2009 for four mature primary rainforest trees from the Danum and Imbak areas of Sabah, Malaysia. The aseasonal equatorial climate meant that conventional dendrochronology was not possible as the tree species investigated do not exhibit clear annual rings or dateable growth ...

Extremely decay-resistant wood and fire-resistant bark allow California's redwoods to accumulate millennia of annual growth rings that can be useful in biological research. Whereas tree rings of Sequoiadendron giganteum (SEGI) helped formalize the study of dendrochronology and the principle of crossdating, those of Sequoia sempervirens (SESE) have proven much more difficult to decipher, greatly...