Results 111 to 120 of about 10,142 (251)

Impacts of fire severity and cattle grazing on early plant dynamics in old-growth Araucaria-Nothofagus forests

open access: yesForest Ecosystems, 2019
Background Fire has historically shaped the dynamics of Araucaria araucana-Nothofagus pumilio forests in the Andean region of South America. Nevertheless, human disturbances and stronger drought events have resulted in increased occurrence and severity ...
Paola Arroyo-Vargas   +3 more
doaj   +1 more source

Evaluation of antioxidant, antimicrobial, and bioactive properties and peptide sequence composition of Malatya apricot kernels

open access: yesJournal of the Science of Food and Agriculture, Volume 104, Issue 13, Page 8022-8036, October 2024.
Abstract BACKGROUND This study used four different apricot (Prunus armeniaca) kernels cultivated in Malatya during two consecutive years. The varieties were Hacihaliloglu, Hasanbey, Kabaasi, and Zerdali. The physicochemical properties of the kernels were determined, and the bioactive content of the kernels was evaluated using kernel hydrolysates ...
Çağlar Mert Aydın   +2 more
wiley   +1 more source

The Unity as a Component of Independence: Antecedents of Latin American Integration in Santiago de Chile (1810-1813) [PDF]

open access: yes, 2015
En el presente artículo analizamos los primeros escritos independentistas difundidos en Santiago de Chile entre 1810 y 1813 desde la perspectiva de su aporte a la creación de las bases ideológicas que facilitarán la participación del país en posteriores ...
Reza, Germán A. de la
core  

Reconstructive evolutionary morphology: Tracing the historical process of modifications of complex systems driven by natural selection through changing ecological conditions

open access: yesJournal of Morphology, Volume 285, Issue 9, September 2024.
Diagram detailing the individual steps and their sequence in a morphology‐centered approach to the reconstruction of the evolutionary history of functional‐morphological entities. Abstract There is general consensus among evolutionary biologists that natural selection drives phenotypic modifications within populations over generational time.
Dominique G. Homberger
wiley   +1 more source

A contribution to the Campylopus flora of Chile [PDF]

open access: yes, 2005
A key to the species of Campylopus known from Chile is given, completed by records of Campylopodioideae of the author in southern Chile. Campylopus acuminatus Mitt. var. kirkii (Mitt.) J.-P.
Frahm, Jan-Peter
core  

Comparación de fórmulas chilenas e internacionales para valorar el arbolado urbano [PDF]

open access: yes, 2012
Ponce-Donoso, M (reprint author), Univ Talca, Fac Ciencias Forestales, Casilla 747, Talca, Chile.The appraisal of urban trees is a practice adopted in diverse cities of world.
Daniluk-Mosquera, G.   +2 more
core   +1 more source

Síntesis de nuevos dímeros de diterpenos utilizando diferentes espaciadores a partir de un precursor obtenido de la resina de Araucaria araucana [PDF]

open access: yes, 2012
44 p.La investigación que se expone en este trabajo tuvo como objetivo la síntesis de nuevos compuestos que sirvan para determinar relaciones estructura-actividad en diterpenos de la serie del labdano.
Bastías Rodríguez, Matias   +1 more
core  

RESISTENCIA TERMITICA DE LA MADERA A POROTERMES QUADRICOLLIS (RAMBUR), TERMITA DE LA MADERA HUMEDA (ISOPTERA, TERMOPSIDAE) WOOD RESISTENCE TO POROTERMES QUADRICOLLIS (RAMBUR), THE WET WOOD TERMITE (ISOPTERA, TERMOPSIDAE)

open access: yesGayana, 2009
Se uso distintas técnicas - incluyendo las pruebas de Schmidt de virutas; de Wolcott modificada; de preferencia; Standard de arena, Cajas Skaife; y de inanición - para evaluar la resistencia termítica a Porotermes quadricollis (Rambur) de distintas ...
Jorge N Artigas, Leonor Villán
doaj  

Aboveground nutrient cycling in temperate forest ecosystems of southern Chile [PDF]

open access: yes, 2009
Forest ecosystems have important ecological, economic, and social values, but are subject to varying ecosystem pressures, including enhanced atmospheric nitrogen deposition.
Almonacid, Leonardo   +4 more
core   +1 more source

Factores que inciden en la germinación de Araucaria araucana (Araucariaceae) del bosque xérico

open access: yesRevista de la Facultad de Ciencias Agrarias, 2015
Araucaria araucana es una conífera dioica endémica de la Patagonia de Argentina y Chile. Los árboles femeninos producen semillas grandes que son dispersadas desde febrero a mayo.
María Andrea Duplancic   +4 more
doaj  

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