Results 11 to 20 of about 1,090 (174)

Functional Diversity and Community Composition of Soil Fungi Associated With Canopy Dieback in Araucaria araucana Forests of Contrasting Edaphic Conditions. [PDF]

Environ Microbiol Rep
Soil fungal communities associated with Araucaria araucana differ primarily according to site edaphic conditions rather than tree health status. Restrictive, nutrient‐poor soils are linked to higher canopy dieback and distinct functional community shifts, with symptomatic trees harbouring stress‐tolerant taxa and asymptomatic trees supporting ...
Arriagada V, Garrido A, Madariaga F, Hasbun R, Sanfuentes E.   +4 more
europepmc   +2 more sources

Mapping the density of giant trees in the Amazon. [PDF]

New Phytol
Summary Tall trees (height ≥ 60 m) are keystone elements of tropical forests, strongly influencing biodiversity, carbon storage, and ecosystem resilience. Yet, their density and spatial distribution remain poorly quantified, especially in remote Amazonian regions, limiting our understanding of their ecological roles and contribution to forest–climate ...
de Lima RB, da Silva DAS, Nunes MH, Bittencourt PRL, Groenendyk P, de Oliveira CP, Granato-Souza D, Caraciolo Ferreira RL, Aleixo da Silva JA, Aguirre-Gutiérrez J, Jackson T, de Matos Filho JR, Aparício PDS, da Silva JPG, de Toledo JJ, Guedes MC, de Almeida DRA, Higuchi N, Wagner FH, Ometto JP, Görgens EB.   +20 more
europepmc   +2 more sources

Diversity Hotspots and Vulnerability of Pine Species in the Sierra Madre Occidental, Western Mexico. [PDF]

Ecol Evol
The present study employs a modeling approach to examine the current and future distribution of 19 pine species in the Sierra Madre Occidental, Mexico. This was done in order to identify areas with high potential for pine species richness and to determine which species are at risk due to climate change under different projections.
Ruacho-González L, Corral-Rivas JJ, González-Gallegos JG, González-Elizondo MS, López-Serrano PM, Briseño-Reyes J.   +5 more
europepmc   +2 more sources

Genetic Diversity, Population Structure and Evidence of Genetic Bottleneck in <i>Geoffroea decorticans</i> (Fabaceae): Implications for Conservation. [PDF]

Ecol Evol
We documented genetic variation, population structure, and bottleneck signals in Geoffroea decorticans (Fabaceae) populations across the Atacama Desert and emphasize the urgency of genetic monitoring. Conservation plans should prioritize populations based on genetic information including those with low diversity, strong bottleneck signals and high ...
Contreras R, Arias-Aburto M, Bessega C.
europepmc   +2 more sources

From Herbarium to Landscape: New Records and Mapping Rare and Threatened Species of Brazilian Atlantic Rainforest. [PDF]

Ecol Evol
Botanical collections remain limited in the mountainous areas of the Brazilian Atlantic Rainforest, which compromises biogeographic knowledge of endangered and locally endemic species and many others that have not yet been described. These gaps hinder the accuracy of biodiversity indicators, limit the discovery and description of new species, restrict ...
Verly OM, Cabral-da-Silva LCM, Sobral M, Oliveira K, Teixeira LBA, Rufino MPMX, de Mendonça AF, Camilo KP, Torres CMME.   +8 more
europepmc   +2 more sources

Elucidating Continental-Wide Phylogeographic and Adaptive Processes Shaping the Genome-Wide Diversity of North America's Most Widely Distributed Tree. [PDF]

Mol Ecol
ABSTRACT Past population dynamics during the Pleistocene ice age and the Holocene era have profoundly influenced the genetic structure and diversity of species. Environmental heterogeneity has further shaped local and regional adaptive variation. Here, we ask how historical processes have led to the current genetic diversity of a key North American ...
Goessen R, Isabel N, Wehenkel C, Hernández-Velasco J, Mendoza-Maya E, Saenz-Romero C, Blanco-Garcia A, Bousquet J, Porth IM.   +8 more
europepmc   +2 more sources

SILVICULTURA DE PRECISÃO: APLICAÇÕES E IMPLICAÇÕES

Revista do Instituto Florestal, 2012
O gerenciamento de florestas implantadas baseado na silvicultura de precisão facilita a tomada de decisão, pois oferece maior disponibilidade de informações que visam à redução de perdas, aumento do lucro e manutenção da qualidade do ambiente.
Aurino Miranda Neto, Wanuza Helena Campos, Kelly de Almeida Silva, Andressa Mineti do Rosário, Elias Silva   +4 more
doaj   +1 more source

Viabilidade de sementes de Campomanesia aurea em diferentes temperaturas de armazenamento

Pesquisa Florestal Brasileira, 2019
O objetivo desse trabalho foi avaliar a qualidade fisiológica de sementes de Campomanesia aurea O. Berg armazenadas sob duas temperaturas. Sementes da espécie foram secas e armazenadas a 25 °C e 8 °C por 0, 30, 60, 90 e 150 dias.
Aquélis Armiliato Emer, Júlio Rieger Lucchese, Claudimar Sidnei Fior, Gilmar Schafer   +3 more
doaj   +1 more source

DENDROCRONOPIROLOGÍA: ANÁLISIS DE LA EVIDENCIA MORFOLÓGICA DE INCENDIOS FORESTALES

Revista Mexicana de Ciencias Forestales, 2018
El régimen de incendios es una importante fuerza evolutiva que modifica la estructura y favorece la adaptación de algunos ecosistemas al fuego. En la última década el número de estudios enfocados a la reconstrucción histórica de la ocurrencia de ...
Diana Yemilet Ávila Flores, Marco Aurelio González Tagle, Javier Jiménez Pérez, Oscar Alberto Aguirre Calderón, Eduardo Javier Treviño Garza, Benedicto Vargas Larreta   +5 more
doaj   +1 more source

La silvicultura como elemento crítico para la sostenibilidad y el manejo del bosque

Revista de Investigación Agraria y Ambiental, 2014
Se presenta un panorama de la silvicultura como elemento crítico para la sostenibilidad y manejo del bosque, considerando la definición de la silvicultura que soporta el manejo sostenible del bosque natural, el papel de la silvicultura dentro de los ...
Carmen Rosa Montes Pulido
doaj   +1 more source