Results 21 to 30 of about 310 (160)
Recurrent hot droughts cause persistent legacy effects in a temperate Scots Pine forest [PDF]
A series of hot drought events caused persistent legacy effects in a Scots Pine forest, with severe negative impacts on ecosystem carbon fluxes. Abstract Recent hot‐dry events have caused significant impacts and legacy effects in temperate ecosystems. Here, we investigate legacy effects of the 2018 hot drought on a Pinus sylvestris L.
S. Haberstroh +4 more
wiley +2 more sources
En el presente estudio se evaluó la posible variación anual de la morfología y la anatomía del ápice caulinar de coihue, Nothofagus dombeyi (Nothofagaceae). A partir de muestras tomadas a lo largo de un año calendario, se realizaron cortes longitudinales
Soledad García +2 more
doaj +1 more source
Effects of artificial damage on the branching pattern of Nothofagus dombeyi (Nothofagaceae) [PDF]
The effects of artificial damage on the branching pattern were studied for a natural population of Nothofagus dombeyi trees. In four independent experiments, leaves, buds, distal internodes and/or nodes were clipped from main-branch shoots. The sizes of shoots close to the site of damage were compared with those of control shoots.
Guido Puntieri, Javier +4 more
openaire +2 more sources
Phylogenetic relationships and time-calibration of the South American fossil and extant species of southern beeches (Nothofagus) [PDF]
The genus Nothofagus is considered as one of the most interesting plant genera, not only for the living species but also due to the fossil evidence distributed throughout the Southern Hemisphere. Early publications postulated a close relationship between
Bárbara Vento, Federico A. Agraín
doaj +1 more source
Changes in the natural dynamics of Nothofagus dombeyi forests
Drought-induced episodes of tree mortality can determine forest dynamics and structure, particularly in forests dominated by single species. Short- and mid-term climate projections indicate that strong changes in annual precipitation may strike more often in northern Patagonia.
Molowny-Horas, Roberto|| +2 more
openaire +4 more sources
Nothofagus species behave like early successional species that recolonize open sites after of regular and large-scale disturbances. This study analyzed the effects of light regimes on patterns of advanced regeneration dynamics, growth in diameter ...
Pamela Encina +6 more
doaj +1 more source
Insect antifeedant compounds from Nothofagus dombeyi and N. pumilio
A bioassay-guided purification of the extracts of Nothofagus dombeyi and N. pumilio leaves yielded several triterpenes and flavonoids including 2-O-acetylmaslinic acid, 3-O-acetyl 20,24,25-trihydroxydammarane, and 3,20,24,25-tetrahydroxydammarane as new natural products.
Thoison, Odile +3 more
openaire +3 more sources
Effect of ectomycorrhizal colonization and drought on reactive oxygen species metabolism of Nothofagus dombeyi roots [PDF]
Infection with ectomycorrhizal fungi can increase the ability of plants to resist drought stress through morphophysiological and biochemical mechanisms. However, the metabolism of antioxidative enzyme activities in the ectomycorrhizal symbiosis remains poorly understood.
Alvarez, Maricel +7 more
openaire +6 more sources
Nothofagus species dominate the temperate forests of South America. Among them, Nothofagus dombeyi and Nothofagus alpina are long-lived, fast-growing pioneer trees with high-quality timber, which makes them attractive for plantation forestry.
Daniel P. Soto +4 more
doaj +1 more source
Animal‐Mediated Dispersal and Clonal Growth Drive Prunus cerasus Invasion in Andean Temperate Forest
Prunus cerasus reproduces by clonality and by seed dispersal and germination. P. cerasus is invading Patagonian protected areas. The relative relevance of germination and clonal reproduction changes along the time of P. cerasus arrival at a site. Seed dispersal by foxes is primarily responsible for the spread of P. cerasus to new areas.
Matias O. Berrondo, Susana P. Bravo
wiley +1 more source

