Results 41 to 50 of about 211 (115)

Efecto de la posición de los frutos en el Estrobilo y tamaño de los mismos, sobre el porcentaje de germinación en Alnus Acuminata H.B.K. (Betulaceae)

Caldasia, 1986
Se ha observado en algunas especies que el tamaño de las semillas puede determinar el mayor o menor porcentaje de germinación de las mismas, especialmente si se trata de especies forestales.En este trabajo se evaluaron nueve tratamientos con el fin de ...
Ruiz Peña María Cristina, Orozco de A. Martha   +1 more
doaj  

Productos forestales no maderables de cuatro comunidades de la parroquia Guanazán, cantón Zaruma, provincia de El Oro.

Bosques Latitud Cero, 2021
Los Productos Forestales no Maderables (PFNM), son parte de la cultura de la población de los sectores rurales ecuatorianos, pero su valoración limita su conservación.
María Alejandra Morán Peñaloza, Nathalie Aguirre Padilla   +1 more
doaj  

Wood density variation across an Andes‐to‐Amazon elevational gradient

Journal of Ecology, Volume 113, Issue 9, Page 2370-2385, September 2025.
We study how wood density varies along a 3500‐m elevational gradient, spanning from the Andean tree line to the Amazon basin. Our results reveal that wood density decreases from low to mid‐elevations, then increases toward the tree line. These patterns underscore the influence of species composition, life forms such as tree ferns, and local ...
William Farfan‐Rios, Sassan Saatchi, Imma Oliveras Menor, Yadvinder Malhi, Chelsea M. Robinson, Oliver L. Phillips, Alex Nina‐Quispe, Juan A. Gibaja, Israel Cuba, Karina Garcia‐Cabrera, Norma Salinas, John Terborgh, Nigel Pitman, Rodolfo Vasquez, Abel Monteagudo Mendoza, Percy Nunez Vargas, Craig A. Layman, Miles R. Silman   +17 more
wiley   +1 more source

Contribución al conocimiento de la relación biológica entre Pythium sp. y raíces y nódulos radicales de Alnus acuminata H.B.K

Agronomía Colombiana, 1987
En los alrededores del embalse del Neusa (Cundinamarcal, se encontró un hongo del género Pythium asociado frecuentemente a los nódulos radicales del Aliso (Alnus acuminata), especie nativa de gran importancia en programas de reforestación, protección de ...
Moncada María Amelia, Bernal Luz Marina, Garcés de Granada Emira, Orozco de Amézquita Martha   +3 more
doaj  

Stomatal responses of tree species from the cloud forest in central Veracruz, México

Botan‪ical Sciences, 2016
Stomatal conductance is considered as a key plant response because it plays an important role in plant physiology by controlling transpiration (water status) and CO2 assimilation, regulating plant productivity.
Manuel Esperón-Rodríguez, Víctor L. Barradas   +1 more
doaj   +1 more source

Spatially nested species distribution models (N‐SDM): An effective tool to overcome niche truncation for more robust inference and projections

Journal of Ecology, Volume 113, Issue 7, Page 1588-1605, July 2025.
N‐SDMs are key tools to develop untruncated regional climate change forecasts of species distributions at fine resolution over restricted extents. While several N‐SDM approaches were proposed, there is currently no universal solution suggesting that further developments and testing are crucial if we are to derive robust future projections of species ...
Antoine Guisan, Mathieu Chevalier, Antoine Adde, Alejandra Zarzo‐Arias, Teresa Goicolea, Olivier Broennimann, Blaise Petitpierre, Daniel Scherrer, Pierre‐Louis Rey, Flavien Collart, Federico Riva, Bart Steen, Rubén G. Mateo   +12 more
wiley   +1 more source

Impacts of climatic niche breadth, phylogeny, traits and ploidy on geographical ranges of Betula species

Journal of Systematics and Evolution, Volume 63, Issue 4, Page 939-951, July 2025.
Geographical range size is a fundamental ecological characteristic of a species. We quantified the effects of phylogeny, climatic niche breadth, morphological traits and ploidy on range size variation of Betula species. Climatic niche breadth has the strongest effect on the range size variation of Betula species.
Feifei Yan, Lu Liu, Junyi Ding, Kexin Fan, Richard J. A. Buggs, Nian Wang   +5 more
wiley   +1 more source

Thermal tolerance is linked to anatomical but not morphological leaf traits in woody species of Andean tropical montane forests

Functional Ecology, Volume 39, Issue 6, Page 1537-1549, June 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The world is experiencing a rise in global temperatures as a result of climate change. Higher temperatures along with more frequent heat waves negatively impact physiological levels and ultimately lead to plant death.
Mónica González, María Cuervo‐Gómez, Claudia Garnica‐Díaz, Fagua Álvarez‐Flórez, Laura Cubillos‐Ariza, Victor Giral, Grace John, Luz Marina Melgarejo, Beatriz Salgado‐Negret   +8 more
wiley   +1 more source

Indicadores morfológicos de la calidad de cinco especies forestales producidos en vivero

Agroindustrial Science, 2022
El objetivo de la presente investigación fue evaluar los indicadores morfológicos en vivero de cinco especies forestales (Pinus radiata, Alnus acuminata, Escallonia resinosa, Buddleja coriacea y Polylepis incana), en el vivero forestal de la estación ...
Rosario M. Bernaola-Paucar, Gelly Clemente Archi, Melina Luz Vilcapoma Paliza   +2 more
doaj   +1 more source

Commodity risk assessment of Alnus cordata and Alnus glutinosa specimen trees from the UK

EFSA Journal, Volume 23, Issue 4, April 2025.
Abstract The European Commission requested the EFSA Panel on Plant Health to prepare and deliver risk assessments for commodities listed in Commission Implementing Regulation (EU) 2018/2019 as ‘high risk plants, plant products and other objects’. This Scientific Opinion covers the plant health risks posed by the following commodities: Alnus cordata and
EFSA Panel on Plant Health (PLH), Antonio Vicent Civera, Paula Baptista, Anna Berlin, Elisavet Chatzivassiliou, Jaime Cubero, Nik Cunniffe, Eduardo de la Peña, Nicolas Desneux, Francesco Di Serio, Anna Filipiak, Paolo Gonthier, Beata Hasiów‐Jaroszewska, Hervé Jactel, Blanca B. Landa, Lara Maistrello, David Makowski, Panagiotis Milonas, Nikos T. Papadopoulos, Hanna Susi, Dirk Jan van der Gaag, Jane Debode, Charles Manceau, Christer Sven Magnusson, Juan A. Navas‐Cortes, Christos Kritikos, Maria Kormpi, Dimitrios Papachristos, Chrysavgi Reppa, Olaf Mosbach Schulz, Ciro Gardi, Monia Federica Lombardo, Antigoni Akrivou, Spyridon Antonatos, Despoina Beris, Roel Potting   +35 more
wiley   +1 more source