Results 111 to 120 of about 2,991 (180)

Ensayos de crecimiento y actividad enzimática de cepas de gírgolas (Pleurotus ostreatus) de Patagonia [PDF]

, 2013
En el presente estudio se realizaron ensayos de crecimiento in vitro de cepas autóctonas del hongo comestible Pleurotus ostreatus en placas a diferentes temperaturas, y ensayos cualitativos de la enzima ligninolítica lacasa, usando DMP como sustrato ...
Lechner, Bernardo Ernesto, Rajchenberg, Mario, Rugolo, Maximiliano   +2 more
core   +1 more source

Transformación de los agroecosistemas y degradación de los recursos naturales en el territorio mapuche: una aproximación históricoecológica [PDF]

, 2011
El presente artículo expone la tensión existente entre las diversas hipótesis explicativas del proceso de degradación de los recursos naturales del territorio mapuche de Chile.

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Araucaria araucana and the Austral parakeet: pre-dispersal seed predation on a masting species El pehuén y la cachaña: depredación predispersión de una especie "masting"

Revista Chilena de Historia Natural, 2008
Pre-dispersal seed predation by Austral parakeets, Enicognathus ferrugineus, on pehuén, Araucaria araucana, was studied to assess the relationship between predation and seed production. We collected falling seeds in four araucaria forests of southwestern
JOHN D SHEPHERD, REBECCA S DITGEN, JAVIER SANGUINETTI   +2 more
doaj  

Chercán de las vegas, Cistothorus platensis [PDF]

, 2018
Acerca de la historia de vida, y particularmente de la nidificación y biología reproductiva de Cistothorus platensis.Fil: Zarco, Agustín. Consejo Nacional de Investigaciones Científicas y Técnicas.
Llambias, Paulo, Zarco, Agustín
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Secondary metabolites from Araucaria araucana (Molina) K.Koch leaves

The first phytochemical analysis concerning the non-volatile secondary components of one European specimen of Araucaria araucana (Molina) K.Koch led to the identification of five compounds: sandaracopimaric acid (1), ladanein (2), shikimic acid (3), 4-O-coumaroyl-quinic acid (4) and 5-O-coumaroyl-quinic acid (5).
Claudio Frezza, Daniela De Vita, Laura Fonti, Ottavia Giampaoli, Ilaria Serafini, Fabio Sciubba, Claudio Scintu, Fabio Attorre   +7 more
openaire   +1 more source

Politics of National Red List Classifications: Challenging the Reclassification of Araucaria araucana

Conservation & Society
The IUCN Red List evaluates species’ extinction risk based on quantitative data about population size, distribution, and changes over time. Species are assigned to nine categories representing their conservation status.
Robert Petitpas
doaj   +1 more source

Ecology of bryophytes along altitudinal and latitudinal gradients in Chile [PDF]

, 2002
The bryophyte vegetation in twenty-eight hectare plots in forests of S-Chile between 38° and 42°S and sea level and the forest line has been studied. Since bryophytes are fully dependend on atmospheric water and nutrient supply, they are good indicators ...
Frahm, Jan-Peter
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Domestication for Conservation of an Endangered Species: The Case of the Wollemi Pine [PDF]

, 2007
A small population of tall slender conifers was discovered in 1994 in a deep rainforest canyon of the Wollemi National Park, New SouthWales, Australia. The living trees closely resembled fossils that were more than 65 million years old, and this ‘living ...
King, Judith, Pegg, Geoff S., Trueman, Stephen J.   +2 more
core   +1 more source

Sex-dependent resilience to extreme drought events: implications for climate change adaptation of a South American endangered tree species

Ecological Processes
Background Recent changes in climatic trends are resulting in an increased frequency and intensity of extreme events, with unknown effect on ecosystem dynamics in the near future.
Sergio Piraino, Martín Ariel Hadad, Yanina Antonia Ribas‑Fernández, Fidel Alejandro Roig   +3 more
doaj   +1 more source

Multiproxy approach revealing climate and cultural changes during the last 26kyrs in south-central Chile [PDF]

, 2010
Multiproxy approach from Purén Lumaco Valley (38°S) describes the paleonvironmental history during the Last Maximum Glacial (LGM) in south-central Chile.
Abarzua, A. M., Jarpa, L., Martel, A., Pino, M., Vega, R.   +4 more
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