Results 21 to 30 of about 180 (114)

Leaf wettability, anatomy and ultra-structure of Nothofagus antarctica and N. betuloides grown under a CO2 enriched atmosphere

open access: yesPlant Physiology and Biochemistry, 2023
Increasing CO2 air concentration may affect wettability, anatomy and ultra-structure of leaves of Patagonian forest species, evergreen and deciduous plants potentially responding differently to such CO2 increases. In this study, we analysed the wettability, anatomy and ultra-structure of leaves of Nothofagus antarctica (deciduous) and N.
Bahamonde, Héctor A.   +4 more
openaire   +5 more sources

The delayed effect of climatic conditions on pre‐fledging nestling haematocrit in a suboscine species in Patagonia

open access: yesJournal of Avian Biology, Volume 2023, Issue 9-10, September/October 2023., 2023
Haematocrit, the proportion of blood comprising erythrocytes, is often used as a proxy of individual condition. Nestling haematocrit is influenced by several factors but ambient temperature is generally agreed as a key driver. It is unclear which day(s) in embryonic or nestling development are most influential in determining pre‐fledgling haematocrit ...
Joseph E. Badji-Churchill   +5 more
wiley   +1 more source

Nonstructural carbohydrates predict survival in saplings of temperate trees under carbon stress

open access: yesFunctional Ecology, Volume 36, Issue 11, Page 2806-2818, November 2022., 2022
Read the free Plain Language Summary for this article on the Journal blog. Abstract Nonstructural carbohydrates (NSCs) mediate plant survival when the plant's carbon (C) balance is negative, suggesting that NSCs could predict plant survival under C stress.
Frida I. Piper   +2 more
wiley   +1 more source

Broad‐scale wood degradation dynamics in the face of climate change: A meta‐analysis

open access: yesGCB Bioenergy, Volume 14, Issue 8, Page 941-958, August 2022., 2022
Using a meta‐analysis, we reviewed the effects of tree attributes and local climate on the time‐since‐death of coarse woody debris ranging in decomposition states. Our results suggest that warming will accelerate wood decomposition and significantly decrease the residence time in decay stages, leading to a decreased temporal window during which dead ...
Catherine Chagnon   +5 more
wiley   +1 more source

Retrospective analysis of wood anatomical traits and tree‐ring isotopes suggests site‐specific mechanisms triggering Araucaria araucana drought‐induced dieback

open access: yesGlobal Change Biology, Volume 27, Issue 24, Page 6394-6408, December 2021., 2021
Araucaria araucana wood anatomical traits evidenced a deterioration of the hydraulic system in declining trees. This pattern is site‐specific and started many decades before canopy dieback. In Chile, declining trees showed higher WUEi in the last 200 years, indicating an earlier stomatal closure to avoid water loss, and a potential greater carbon ...
Paulina F. Puchi   +3 more
wiley   +1 more source

The world's southernmost tree and the climate and windscapes of the southernmost forests

open access: yesEcography, Volume 44, Issue 1, Page 14-24, January 2021., 2021
The world's southernmost tree has been documented along with the condition and growth pattern of the world's southernmost forest on Isla Hornos, Chile. The distribution of trees at broad scales is strongly influenced by the abiotic environment and determining the position and condition of tree limits around the world is an important way to monitor ...
Brian Buma   +3 more
wiley   +1 more source

Structural and Biometric Characterization ofNothofagus betuloidesProduction Forests in the Magellan Region, Chile

open access: yesJournal of Sustainable Forestry, 2007
Summary This study, in die Chilean Magellan Region, undertook the structural and biometrie characterization of Nothofagus betuloides (Mirb.) Blume (coihue de Magallanes) production forests to provide information for sustainable forest management. Six locations were surveyed, five on the continent and one on Tierra del Fuego Island.
Madariaga, Gustavo Cruz   +3 more
openaire   +4 more sources

Potencial dendroclimático de Nothofagus betuloides en la Cordillera de Darwin, Tierra del Fuego, Chile [PDF]

open access: yesBosque (Valdivia), 2017
El estudio de la variabilidad climatica en regiones remotas se dificulta por la escasez de series instrumentales largas y completas. Una alternativa es recurrir al uso de fuentes de informacion paleoambiental, tales como las series de anillos de crecimiento arboreo.
Soto-Rogel, Pamela, Aravena, Juan Carlos
openaire   +2 more sources

Influence of gibberellic acid and potassium nitrate on seed germination of Nothofagus betuloides (Mirb.) Oerst.

open access: yesForest Systems, 1994
N. betuloides (Fagaceae) is an economically important tree species from Fuegian forest (Argentina). The present work was carried out aiming to study the effects of gibberellic acid and potassium nitrate on the release of dormacy, and the presence of differences in germination of 2-winged and 3-winged.
C. Martinez Pastur   +2 more
openaire   +3 more sources

Efecto del vaporizado inicial en el secado artificial de madera de coigüe de Magallanes (Nothofagus betuloides)* [PDF]

open access: yesBosque (Valdivia), 2005
El trabajo consistio basicamente en someter madera aserrada de Nothofagus betuloides (Mirb.) Oerst. a tres distintos niveles de vaporizado inicial (4, 8 y 10 horas, respectivamente) y a un posterior proceso de secado artificial convencional unico. Se evaluo el efecto del vaporizado inicial sobre la calidad de la madera obtenida y el tiempo de secado ...
JUACIDA P, ROBERTO   +2 more
openaire   +2 more sources

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