Browsing by Title Artículos de revistas
Now showing items 3899-3918 of 4967
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(ELSEVIER SCIENCE BV, 2005-08)n this study, we quantify the home range of Mepraia spinolai, a wild vector of Trypanosoma cruzi, and the abundance of wild mammals during summer and winter seasons in a protected area of north-central Chile. Results ...
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(2007)In the area off central-south Chile (34-40 degrees S), a new period of high abundance of Dosidicus gigas has occurred since 2001. The seasonal changes in length structure and reproductive condition of D. gigas in oceanic ...
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(Elsevier, 2014)Across vertebrates, the hypothalamic–pituitary–adrenal axis is a conserved neuroendocrine network that responds to changing environments and involves the release of glucocorticoids into the blood. Few studies have been ...
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(2009)The coast of the Atacama Desert is characterized by the occurrence of strong south- and southwesterly winds. The arid climate, flat geomorphology and the characteristics of the superficial sediments on Pampa Mejillones, ...
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(1991)The aerial parts of Haplopappus parvifolius afforded 30 new diterpenes including 21 labdane derivatives, four nor-diterpenes, three rearranged ones, four seco-labdanes and one with a new carbon skeleton whose structure was ...
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(1990)The extract of the aerial parts ofO. floribundus afforded in addition to known compounds 17 new diterpenes, including eightseco-ent-labdanes with a very rare carbon skeleton. The structures were elucidated by high field ...
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(2015)Ten known meroterpenoids and the new meroterpenoid 7 were isolated from the Chilean seaweed Stypopodium flabelliforme as their acetylated derivatives. Furthermore, the known metabolite taondiol has been isolated for the ...
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(MDPI, 2018)Lichens are symbiotic associations of fungi with microalgae and/or cyanobacteria, which are considered among the slowest growing organisms, with strong tolerance to adverse environmental conditions. There are about 400 ...
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(SOCIEDAD CHILENA DE QUIMICA, 2006-03)In a screening of Basidiomycete cultures isolated from marine invertebrates collected along the Chilean coastline for the production of antibiotics we identified a Penicillium brevicompactum strain as a producer of metabolites ...
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(2016)Liquid chromatography coupled with mass spectrometry is an outstanding methodology for fast analysis of phenolic compounds in biological samples. Twenty two compounds were quickly and accurately identified in the methanolic ...
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(1989)The dispersal syndromes of 72 species from the temperate rain forest of Chiloe were analysed and compared with data for other temperate forests in New Zealand and New Jersey, and for dry, moist and wet neotropical forests. ...
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(1996)The relationship between mistletoes and birds has been studied from the perspectives of mutualism and seed dispersal. Here, we emphasize the role that avian dispersers play as agents of mistletoe seed transmission to plant ...
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(2000)The ability to germinate under a variety of environmental conditions is essential for plant species inhabiting a wide range of altitudes and latitudes. Phacelia secunda J. F. Gmel. (Hydrophyllaceae) is a perennial herb ...
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(Taylor & Francis, 2017)Background: Seed mass is a life history trait that is related to invasiveness. Under limiting conditions, a trade-off is observed whereby an increase in seed mass occurs at the expense of seed numbers; if the above trade-off ...
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(2000)We present a graphic model that explores the effect of distance between parent plants on seed predation and seedling recruitment. Based on the assumption that distance between parents may affect the shape of the seed shadow, ...
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(ELSEVIER, 2008-03-20)The ecological processes and interactions that involve plants at the seed level may be altered in a fragmented forest, with consequences on plant recruitment and forest structure. We studied seed production, pre-dispersal ...
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(Blackwell Publishing, 2001)In temperate rainforests on Chiloé Island in southern Chile (42°S), most canopy trees bear fleshy, avian-dispersed propagules, whereas emergent tree species have dry, wind-borne propagules. In the present study, the following ...
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(2010)Herbivory rates are generally thought to be higher in tropical than in temperate forests. Nevertheless, tests of this biogeographic prediction by comparing a single plant species across a tropical-temperate range are scarce. ...
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(2012)Fusarium fujikuroi and Fusarium proliferatum are two phylogenetically closely related species of the Gibberella fujikuroi species complex (GFC). In some cases, strains of these species can cross and produce a few ascospores. ...
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(Kluwer Academic Publishers, 2014)Biogas must be pretreated before its use; thus, both physical and chemical methods have been implemented to remove the fuel's principal pollutants (CO 2and H2S). Additional removal methods that use microorganisms' biological ...