Results 51 to 60 of about 834 (203)

Potential for tree rings to reveal spatial patterns of past drought variability across western Australia

Environmental Research Letters, 2018
Proxy records have provided major insights into the variability of past climates over long timescales. However, for much of the Southern Hemisphere, the ability to identify spatial patterns of past climatic variability is constrained by the sparse ...
Alison J O’Donnell, Edward R Cook, Jonathan G Palmer, Chris S M Turney, Pauline F Grierson   +4 more
doaj   +1 more source

Diversification of increment reactions of Douglas fir (Pseudotsuga menziesii Franco) from mountainous regions of southern Poland

Journal of Forest Science, 2003
Dendroclimatological research presented in this paper concerns Douglas fir (P. menziesii) at 17 sites located in the area of the Sudetes Mountains, the Polish part of the Carpathians and Roztocze.
E. Feliksik, S. Wilczyski
doaj   +1 more source

Bridging the 39Ar–14C Groundwater Dating Gap: A Dual‐Permeability Transport Perspective Based on Numerical Modeling and Field Data

Water Resources Research, Volume 61, Issue 12, December 2025.
Abstract Groundwater dating studies rely on environmental tracers to estimate residence times, but most available reliable tracers cover either short (days to decades; e.g., 222Rn, 3H/3He, 85Kr) or extended timescales (millennia to millions of years; e.g., 4He, 36Cl, 81Kr). This leaves a critical gap in age information for intermediate residence times (
S. L. Musy, K. Hinsby, D. Wachs, J. Sültenfuss, L. Troldborg, W. Aeschbach, O. S. Schilling, R. Purtschert   +7 more
wiley   +1 more source

Changing climate response in near-treeline bristlecone pine with elevation and aspect

Environmental Research Letters, 2014
In the White Mountains of California, eight bristlecone pine ( Pinus longaeva ) tree-ring width chronologies were developed from trees at upper treeline and just below upper treeline along North- and South-facing elevational transects from treeline to ...
Matthew W Salzer, Evan R Larson, Andrew G Bunn, Malcolm K Hughes   +3 more
doaj   +1 more source

Changes in climate-growth relationships and IADF formation over time of pine species (Pinus halepensis, P. pinaster and P. sylvestris) in Mediterranean environments

Forest Systems, 2015
Background: The Mediterranean basin has experienced an increase in the mean annual temperature, a decrease in the mean annual precipitation, and an increase in the frequency of severe drought periods during the second half of the 20th century.
Jorge Olivar, Stella Bogino, Heinrich Spiecker, Felipe Bravo   +3 more
doaj   +1 more source

Dendroclimatological reconstructions in South America: A review

Palaeogeography, Palaeoclimatology, Palaeoecology, 2009
Abstract Recent years have seen a consolidation and expansion of tree-ring sample collection across South America. Most collections are concentrated in the temperate forests along the eastern and western slopes of the Southern Andes (32°S to 55°S).
Boninsegna, J. A., Argollo, J., Aravena, J. C., Barichivich, J., Christie, D., Ferrero, M. E., Lara, A., Le Quesne, C., Luckman, B. H., Masiokas, M., Morales, M., Oliveira, J. M., Roig, F., Spur, A., Villalba, R.   +14 more
openaire   +6 more sources

Biomass production of tropical trees across space and time: The shifting roles of diameter growth and wood density

Journal of Ecology, Volume 113, Issue 11, Page 3141-3158, November 2025.
Diameter growth is an important and good indicator of forest carbon production. However, size‐related changes in wood density, which are usually neglected, are critical for accurate short‐ and long‐term carbon assessments, especially in tropical humid sites.
Bruna Hornink, Pieter A. Zuidema, Peter van der Sleen, Amy E. Zanne, Gabriel Assis‐Pereira, Daigard Ricardo Ortega Rodriguez, Claudia Fontana, Leif Armando Portal‐Cahuana, Edilson Jimmy Requena‐Rojas, Ana Carolina Maioli Campos Barbosa, Daniela Granato‐Souza, Lucas Guimarães Pereira, Claudio Sergio Lisi, Itallo Romany Nunes Menezes, Alejandro Venegas‐Gonzalez, Nelson Jaén‐Barrios, Fidel A. Roig, Mario Tomazello‐Filho, Peter Groenendijk   +18 more
wiley   +1 more source

Fine-scale modeling of bristlecone pine treeline position in the Great Basin, USA

Environmental Research Letters, 2017
Great Basin bristlecone pine ( Pinus longaeva ) and foxtail pine ( Pinus balfouriana ) are valuable paleoclimate resources due to their longevity and climatic sensitivity of their annually-resolved rings.
Jamis M Bruening, Tyler J Tran, Andrew G Bunn, Stuart B Weiss, Matthew W Salzer   +4 more
doaj   +1 more source

Oxygen Isotopes as a Key Proxy of Equatorial Pacific SST Variability in a Multiparametric Tree‐Ring Approach in the Low‐Latitude Andes

Paleoceanography and Paleoclimatology, Volume 40, Issue 9, September 2025.
Abstract Sea surface temperature (SST) variability in the equatorial Pacific plays a crucial role in shaping global climate patterns. As El Niño–Southern Oscillation (ENSO)‐related extremes intensify, understanding SST fluctuations and their connection to ENSO becomes increasingly important.
C. Rodríguez‐Morata, E. J. Requena‐Rojas, G. Ticse‐Otarola, M. S. Morales, R. D’Arrigo, D. B. Crispín‐DelaCruz, L. Andreu‐Hayles   +6 more
wiley   +1 more source

Provenance Variation in Functional Traits of European Forest Trees: Meta‐Analysis Reveals Effects of Taxa and Age Despite Critical Research Gaps

Ecology and Evolution, Volume 15, Issue 8, August 2025.
This meta‐analysis on intraspecific variation in European trees studied the frequency of provenance variation, provenance–environment interaction, clinal variation along the climate of origin or transfer distance. While identifying trait group specific patterns of variation, research gaps have been identified in terms of age and geographical ...
Samuel Aspalter, Albert Ciceu, Carlos Miguel Landivar Albis, Debojyoti Chakraborty, Silvio Schueler   +4 more
wiley   +1 more source