Results 31 to 40 of about 358 (130)

Actividad biológica del suelo en dos bosques de Nothofagus del centro sur de Chile Biological activity of soils in two Nothofagus forest in south-central Chile

open access: yesGayana: Botanica, 2007
Los bosques templados prístinos del sur de Chile tienen un bajo ingreso de nitrógeno (N) vía depositación atmosférica, por lo que la productividad del ecosistema depende principalmente del reciclaje interno de nutrientes, contenido en la materia orgánica
Yessica Rivas   +5 more
doaj   +1 more source

HYPHOMYCETES CELULOLITICOS EN SUELOS DE BOSQUES DE NOTHOFAGUS, TIERRA DEL FUEGO CELLULOLYTIC HYPHOMYCETES ON SOIL OF NOTHOFAGUS FORESTS IN TIERRA DEL FUEGO

open access: yesGayana: Botanica, 2001
Se estudiaron los hongos celulolíticos asociados a suelos de tres bosques prístinos de Nothofagus (N. pumilio (Poepp. et Endl.) Krasser, N. antarctica (Forst.) Oerst. y N.
A. E. Martínez   +2 more
doaj   +1 more source

UAV LiDAR in coastal environments: Archaeological case studies from Tierra del Fuego, Argentina, and Vega, Norway

open access: yesArchaeological Prospection, Volume 30, Issue 4, Page 533-557, October/December 2023., 2023
Abstract LiDAR has become fairly integrated into archaeological practice at a global scale. This has gradually evolved to include UAV LiDAR. Nevertheless, considerable biases remain, including with regard to geographical regions, chronological periods, feature types and environments.
Ole Risbøl   +6 more
wiley   +1 more source

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

El bosque como fuente de combustible: análisis antracológico de los sitios de la faja central de la Isla Grande de Tierra del Fuego

open access: yesRevista del Museo de Antropologia, 2020
El objetivo de este trabajo es presentar el análisis antracológico de dos sitios de la faja central de la Isla Grande de Tierra del Fuego (Cabo San Pablo 2017 y Kami 7) y discutir la utilización de recursos leñosos por parte de los grupos que habitaron ...
Anna Franch Bach   +6 more
doaj   +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

The influence of canopy-layer composition on understory plant diversity in southern temperate forests

open access: yesForest Ecosystems, 2017
Background Understory plants represents the largest component of biodiversity in most forest ecosystems and plays a key role in forest functioning. Despite their importance, the influence of overstory-layer composition on understory plant diversity is ...
Luciana Mestre   +5 more
doaj   +1 more source

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