Results 141 to 150 of about 13,891 (287)

Intra‐annual transfer of hydrogen and oxygen isotopic signals from water and sugar precursors to tree rings: Processes and mechanisms

New Phytologist, EarlyView.
Intra‐annual radial growth of beech and spruce in 2021 and 2022. Summary The oxygen (δ18O) and hydrogen (δ2H) isotope compositions of leaf and xylem water shape tree‐ring isotope baselines, while the fraction of sugars undergoing isotopic modification downstream of leaves (fO, fH) determines the dominant hydrologic signal.
Haoyu Diao, Meisha Holloway‐Phillips, Xin Song, Fabian Bernhard, Peter Waldner, Kerstin Treydte, Matthias Saurer, Georg von Arx, Arthur Gessler, Katrin Meusburger, Marco M. Lehmann   +10 more
wiley   +1 more source

Cabin next to large spruce tree

, 1902
Image 2-4, identified as: Spruce tree. Part of the George Ashmun Collection.

core  

Black spruce (Picea marianna) architecture

, 1999
Genetically determined rules underlying black spruce (Picea mariana (Mill.) BSP) morphological development were revealed by using tree architecture analysis. Black spruce develops according to Rauh's model.
Christian Bégin, Louise Filion
core   +1 more source

Temperate tree species show cross‐tolerance to heat, drought, and late spring‐frost stress

New Phytologist, EarlyView.
Significant cross‐tolerance of leaf traits to heat, drought and late spring‐frost were found. (a) Turgor loss point vs lethal spring‐frost temperature. (b) Heat thermal threshold temperature vs lethal spring‐frost temperature. (c) Heat thermal threshold temperature vs turgor loss point.
Norbert Kunert, Jonathan Ehrmann, Svenja Gebhard, Sophie Hofmann, Georg Zimmermann, Peter Hajek   +5 more
wiley   +1 more source

Novel threats and response to Acadia National Park forests: Simulating the resist–accept–direct management framework

Ecosphere
How future pathogens will interact with climate change to affect forests is unknown. While specific predictions of complex interactions may be unreliable, exploring a gradient of disturbance severity and management can be informative.
Matthew J. Duveneck, Nicholas Fisichelli, Kathryn M. Miller   +2 more
doaj   +1 more source

Black Spruce Diameter Growth Model Data

, 2018
This data was used in fitting diameter growth models for a historical silviculture study in lowland black spruce. It consists of an initial diameter and second diameter 9-11 years after the initial measurement for 10,231 black spruce trees. Also included
Anderson, Brian D, Windmuller-Campione, Marcella A, Russell, Matthew B   +2 more
core  

Physiology and Transcriptomics Reveal Divergent Strategies of Mycorrhiza‐Mediated Drought Adaptation in Poplar

Plant, Cell &Environment, EarlyView.
ABSTRACT Mycorrhizal symbiosis shapes plant growth and stress resilience. Here, we compared physiological and molecular responses of poplars (P. x canescens) colonised by Paxillus involutus (Pi) or Cenococcum geophilum (Cg) under control conditions, drought stress and recovery.
Huili Shi, Zhuchou Lu, Andrea Polle
wiley   +1 more source

Landscape conservation forecasting to evaluate ecological condition and wildlife habitat suitability in eastern Nevada U.S.A.

Restoration Ecology, EarlyView.
Abstract Introduction Cooperation among managers of protected areas and federal multiple use lands with private inholdings to increase restoration success and economies of scale creates ecological and regulatory complexity best studied with state‐and‐transition simulation models (STSM).
Louis Provencher, Kevin J. Badik, Sarah Byer, Laurel Saito, Margaret Horner, Bryan Hamilton, Michael Clifford, Devin McHugh   +7 more
wiley   +1 more source

Short‐term soil responses and site conditions to inverted mounding on peatland linear features in Alberta, Canada

Restoration Ecology, EarlyView.
Abstract Introduction Seismic lines represent one of the most extensive and persistent anthropogenic disturbances in boreal peatlands, limiting forest regeneration and altering key ecosystem functions. Inverted mounding is increasingly applied to elevate planting microsites above shallow water tables, yet evidence on short‐ to medium‐term biophysical ...
Jaime Pinzon, Hyejin Hwang
wiley   +1 more source

Tree‐Ring Oxygen Isotope Values During the Last Glacial Maximum and Insights to Future Changes in Climate

Terra Nova, EarlyView.
ABSTRACT Annual tree‐ring oxygen‐isotope values were measured from sections of two fossil logs of Picea mariana (black spruce) recovered from last glacial maximum proglacial sediment in Illinois, USA. Collectively, the specimens date from ca. 25,130 to 24,720 cal years BP.
Dana M. Labotka, Mostafa J. Fayek, B. Brandon Curry   +2 more
wiley   +1 more source