Results 21 to 30 of about 3,811 (215)

Relationships among livestock, structure, and regeneration in Chilean Austral Macrozone temperate forests

open access: yesTrees, Forests and People, 2023
A Macrozone is a socioecological region with shared geographic and demographic characteristics. Within the Chilean Austral Macrozone (43° to 56° SL), the native temperate forests serve as a crucial resource, offering multiple ecosystem services to local ...
Alejandro Huertas Herrera   +5 more
doaj   +1 more source

Survival rates in the world's southernmost forest bird community

open access: yesEcology and Evolution, Volume 13, Issue 6, June 2023., 2023
In this article, we describe the temporal dynamics in survival probabilities for the world's southernmost forest bird community and their relationship to climatic variables. We develop a multispecies hierarchical survival model using Bayesian inference to jointly explore age‐dependent survival probabilities at the community and species levels in a ...
Erik M. Sandvig   +9 more
wiley   +1 more source

Correlated evolution in an ectomycorrhizal host–symbiont system

open access: yesNew Phytologist, Volume 238, Issue 3, Page 1215-1229, May 2023., 2023
Summary Mechanisms of diversification in fungi are relatively poorly known. Many ectomycorrhizal symbionts show preference for particular host genera or families, so host–symbiont selection may be an important driver of fungal diversification in ectomycorrhizal systems.
Laura G. van Galen   +5 more
wiley   +1 more source

Morphological and architectural features of young Nothofagus pumilio (Poepp. & Endl.) Krasser (Fagaceae) [PDF]

open access: yesBotanical Journal of the Linnean Society, 1999
The morphology and architecture of young Nothofagus pumilio plants growing as understorey and in a cleared area were assessed. Length, number of internodes, presence of branches and apex condition were registered for each growth unit (GU) in the sampled plant. GUs were grouped according to branching order and age of the bearing axis. Understorey plants
Puntieri, J.   +4 more
openaire   +4 more sources

Pollen morphology of Nothofagus (Nothofagaceae, Fagales) and its phylogenetic significance [PDF]

open access: yes, 2016
Nothofagaceae (southern beeches) are a relatively small flowering plant family of trees confined to the Southern Hemisphere. The fossil record of the family is abundant and it has been widely used as a test case for the classic hypothesis that Antarctica,
Barreda, Viviana Dora   +4 more
core   +2 more sources

Catastrophic or sustainable scenarios might occur when the carrying capacities of a tourism‐based socioecological system vary

open access: yesNatural Resource Modeling, Volume 36, Issue 2, May 2023., 2023
Abstract In this work, we propose a socioecological model to describe the effects of visiting tourists in biological attractive sites. We model conditioned interactions between the forest resources and the wildlife with the tourists. This allows us to describe the net benefits–costs rates that the species and their habitats receive from the interaction
J. G. Villavicencio‐Pulido   +2 more
wiley   +1 more source

Micropropagación de Nothofagus pumilio (Poepp. et Endl.) Krasser

open access: yesBosque, 1997
Nothofagus pumilio is the most important forest species in South Patagonia. The present work was carried out to determine the suitable cultural conditions for in vitro propagation through shoot culture of saplings and a mature tree. The days after sprouting and the presence of the bud scales were critical for culture initiation.
Martínez Pastur, Guillermo   +1 more
openaire   +2 more sources

Guanacos’ and domestic livestock’s summer diets comparison in ecotone of “Tierra del Fuego” (Argentina) [PDF]

open access: yes, 2018
At present, it is believed that the population of guanacos has increased in the “Isla Grande de Tierra del Fuego”, arising a conflict with livestock and forestry activities.
Alvarenga, Eugenia Celeste   +6 more
core   +1 more source

Diet composition of guanacos (lama guanicoe) in corazón de la isla reserve, tierra del fuego (argentina): Seasonal utilization of nothofagus spp. [PDF]

open access: yes, 2015
El guanaco (Lama guanicoe) representa una de las especies más características de la fauna de Tierra del Fuego. En bosques ecotonales se ha documentado el daño producido por el guanaco en la regeneración de la Nothofagus pumilio (lenga). Los objetivos del
Arias, Nadia Soledad   +3 more
core   +1 more source

Insect antifeedant compounds from Nothofagus dombeyi and N. pumilio

open access: yesPhytochemistry, 2004
A bioassay-guided purification of the extracts of Nothofagus dombeyi and N. pumilio leaves yielded several triterpenes and flavonoids including 2-O-acetylmaslinic acid, 3-O-acetyl 20,24,25-trihydroxydammarane, and 3,20,24,25-tetrahydroxydammarane as new natural products.
Thoison, Odile   +3 more
openaire   +3 more sources

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