Results 61 to 70 of about 365 (162)

Araucaria araucana im Palmengarten – erstmals mit weiblichen Zapfen

open access: yesDer Palmengarten, 2008
Chilenische Araukarien (Araucaria araucana) wachsen bei uns sehr langsam und setzen eher selten Zapfen an. Im vergangenen Sommer konnten im Palmengarten erstmals an etwa 50 Jahre alten Araukarien die Samen voll ausreifen.  
Rudolph, Roland, Steinecke, Hilke
openaire   +2 more sources

Muerte foliar en plantines de Araucaria araucana (Mol.) K. Koch por efecto de temperaturas de congelamiento. Resultados preliminares

open access: yesRevista de la Facultad de Ciencias Agrarias, 2015
En este trabajo se comunica la respuesta fenológica que experimenta el follaje de plantines de Araucaria araucana sometidos a cuatro niveles de temperaturas de congelamiento (-2ºC, -6ºC, -10ºC y -15ºC), inducidas durante la temporada de activo ...
Julieta Gabriela Arco Molina   +3 more
doaj  

Novel phylogenetic analysis of the Mesozoic common gymnosperm Xenoxylon Gothan reveals close affinity with extant Podocarpaceae (Coniferales)

open access: yesJournal of Systematics and Evolution, Volume 63, Issue 2, Page 469-478, March 2025.
We perform a phylogenetic analysis of the Mesozoic common gymnosperm Xenoxylon to understand the systematic relationship with extant conifers. Data come from four nucleotide regions (trnL‐F, trnK‐matK, rbcL, psbA‐trnH), xylological characters, and biomolecular composition of five extant conifer families and extinct Xenoxylon. Using maximum parsimony in
Aowei Xie   +4 more
wiley   +1 more source

Commodity risk assessment of Populus alba, Populus nigra and Populus tremula plants from the UK

open access: yesEFSA Journal, Volume 23, Issue 3, March 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 plant health risks posed by plants of Populus alba, Populus nigra and ...
EFSA Panel on Plant Health (PLH)   +32 more
wiley   +1 more source

Overlooked Parrot Seed Dispersal in Australia and South America: Insights on the Evolution of Dispersal Syndromes and Seed Size in Araucaria Trees

open access: yesFrontiers in Ecology and Evolution, 2019
While Psittaciformes (parrots and allies) are well-recognized as highly-mobile seed predators, their role as seed dispersers has been overlooked until very recently.
José L. Tella   +3 more
doaj   +1 more source

Commodity risk assessment of Taxus baccata plants from the UK

open access: yesEFSA Journal, Volume 23, Issue 2, February 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 plant health risks posed by plants of Taxus baccata imported from the United
EFSA Panel on Plant Health (PLH)   +31 more
wiley   +1 more source

Predation by Rattus norvegicus on a native small mammal in an Araucaria araucana forest of Neuquén, Argentina La depredación en pequeños mamíferos nativos por Rattus norvegicus en un bosque de Araucaria araucana en Neuquén, Argentina

open access: yesRevista Chilena de Historia Natural, 2012
Few previous studies document Rattus predation as a mechanism of impact on native small mammals. In a mixed Araucaria araucana (Molina) Koch -Nothofagus forest in Parque Nacional Lanín in southwestern Neuquén Province, Argentina, we discovered the ...
JOHN D SHEPHERD, REBECCA S DITGEN
doaj  

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

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  

Gastroprotective effect of the Mapuche crude drug Araucaria araucana resin and its main constituents

open access: yesJournal of Ethnopharmacology, 2005
The resin from the tree Araucaria araucana (Araucariaceae) has been used since pre-columbian times by the Mapuche amerindians to treat ulcers. The gastroprotective effect of the resin was assessed in the ethanol-HCl-induced gastric ulcer in mice showing a dose-dependent gastroprotective activity at 100, 200 and 300 mg/kg per os.
Schmeda-Hirschmann, G.   +4 more
openaire   +4 more sources

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