Browsing by Author "201-0546758"
Now showing items 21-40 of 43
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Becerra, Pablo I.; Cavieres, Lohengrin; Bustamante Araya, Ramiro (Taylor and Francis, 2020)Background: The effects of many invasive species on invaded communities are still scarcely known. Centaurea solstitialis is an invasive Eurasian herb, widely distributed around the world, but its effects on recipient ...
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Gómez, Percy; Bustamante Araya, Ramiro; San Martín, José; Hahn, Steffen (2001)In this note we examine the population structure of Pinus radiata, exotic plant that is invading fragments of the Maulino Forest. We evaluate pine density, age, proportion of reproductive individuals across 8 forest ...
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Aránguiz Acuña, Adriana; Bustamante Araya, Ramiro; Ramos Jiliberto, Rodrigo (Oxford University Press, 2011)Theoretical predictions suggest that adaptive phenotypic plasticity, and induced defenses in particular, exert a stabilizing effect on ecological systems and increase the likelihood of species coexistence. Nonetheless, ...
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Badano, Ernesto I.; Bustamante Araya, Ramiro; Villarroel, Elisa; Marquet, Pablo A.; Cavieres, Lohengrin A. (International Association for Vegetation Science, 2015)QuestionThe biotic resistance hypothesis states that species diversity is a barrier for plant biological invasions because alien species are more likely to find strong competitors as diversity of native plants increases. ...
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Bustamante Araya, Ramiro; Durán, América P.; Peña Gómez, Francisco T.; Véliz Baeza, David (Taylor & Francis, 2017)Background: Reductions of genetic diversity and phenotypic changes in invasive plants are often observed to occur at high elevations. Genetic/phenotypic changes of invasive plants along elevation help to understand mechanisms ...
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Castillo, María L.; Schaffner, Urs; Van Wilgen, Brian W.; Montaño, Noé Manuel; Bustamante Araya, Ramiro; Cosacov, Andrea; Mathese, Megan J.; Le Roux, Johannes J. (Oxford University Press, 2020)Accurate taxonomic identification of alien species is crucial to detect new incursions, prevent or reduce the arrival of new invaders and implement management options such as biological control. Globally, the taxonomy of ...
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Vásquez, P. A.; Bustamante Araya, Ramiro; Grez Villarroel, Audrey; Simonetti Zambelli, Javier Andrés (GAUTHIER-VILLARS/EDITIONS ELSEVIER, 2007-01)Habitat fragmentation may modify ecological interactions such as herbivory, and these changes can impinge upon plant fitness. Through a natural experiment, we evaluated if herbivory, foliar survival and shoot growth of the ...
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Improved Predictions of the Geographic Distribution of Invasive Plants Using Climatic Niche Models Ramírez-Albores, Jorge E.; Bustamante Araya, Ramiro; Badano, Ernesto I. (Public Library Science, 2016)Climatic niche models for invasive plants are usually constructed with occurrence records taken from literature and collections. Because these data neither discriminate among life-cycle stages of plants (adult or juvenile) ...
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Sotes, Gastón J.; Bustamante Araya, Ramiro; Henríquez, Carolina Andrea (Copernicus Gesellschaft MBH, 2018)Pouteria splendens (A. DC.) Kuntze, the Chilean lucumo, is an endemic tree and the only member of the Sapotaceae family in Chile. It is considered an endangered species as a consequence of its restricted distribution and ...
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Taucare Ríos, Andrés; Veloso Iriarte, Claudio; Bustamante Araya, Ramiro (Taylor & Francis, 2017)In spiders, temperature is considered an important environmental variable for microhabitat selection. In this study, we evaluated the effect of temperature and rock size on the presence of the sand recluse spider Sicarius ...
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Ramírez Albores, Jorge E.; Bizama, Gustavo; Bustamante Araya, Ramiro; Badano, Ernesto I. (Royal Botanical Society of Belgium, 2020)Background and aim - Invasive plants should only colonize habitats meeting the environmental conditions included in their native niches. However, if they invade habitats with novel environmental conditions, this can induce ...
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Anic, V.; Henríquez, C.; Abades, Sebastián R.; Bustamante Araya, Ramiro (Wiley-Blackwell, 2015)The component Allee effect has been defined as a positive relationship between any measure of individual fitness and the number or density of conspecifics'. Larger plant populations or large patches have shown a higher ...
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Chacón, Paulina; Bustamante Araya, Ramiro; Niemeyer Marich, August (BIRKHAUSER VERLAG AG, 2006-09)The plant apparency hypothesis predicts that apparent plants invest in broadly effective defences such as tannins while unapparent plants invest in specific toxins such as alkaloids. The stress hypothesis states that plants ...
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Plant-plant facilitation increases with reduced phylogenetic relatedness along an elevation gradient Duarte, Milen; Verdú, Miguel; Cavieres, Lohengrin A.; Bustamante Araya, Ramiro (Wiley, 2020)Environmental conditions can modify the intensity and sign of ecological interactions. The stress gradient hypothesis (SGH) predicts that facilitation becomes more important than competition under stressful conditions. To ...
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Pauchard, Aníbal; García, Rafael; Peña, Eduardo; Bustamante Araya, Ramiro; González, Cristián; Cavieres, Lohengrin A. (SPRINGER, 2008-04)Invasive species can increase fire frequency and intensity, generating favorable conditions for their self-perpetuation. Mediterranean south-central Chile may be especially prone to the effects of invasive species on fire ...
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Fleury, Marina; Marcelo, Wara; Vásquez Salfate, Rodrigo; González, Luis Alberto; Bustamante Araya, Ramiro (Public Library Science, 2015)Shrubs can have a net positive effect on the recruitment of other species, especially relict species in dry-stressful conditions. We tested the effects of nurse shrubs and herbivory defoliation on performance (survival and ...
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Miranda, Alejandro; Hernández Palma, Héctor; Bustamante Araya, Ramiro; Matías Díaz, E.; González Rodríguez, Luis Alberto; Altamirano, Adison (2016)Jubaea chilensis is an endemic tree of Central Chile (31 degrees 15'-35 degrees 22'S). The current main conservation threats for this species should be associated with different factors which limit its natural regeneration, ...
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Burgos, Aracely; Grez Villarroel, Audrey; Bustamante Araya, Ramiro (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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Montecino Banderet, Senta Viviana; Molina Paredes, María Ximena; Bothwell, M.; Muñoz, P.; Carrevedo Goyra, María Laura; Salinas, F.; Kumar, S.; Castillo, M. L.; Bizama, Gustavo; Bustamante Araya, Ramiro (Elsevier, 2016)We document the distribution of Didymosphenia geminata in central-southern Chilean rivers and identify the chemical and physical factors associated with its presence/absence (p/a). Repeated surveys in five successive years ...
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Simberloff, Daniel; Nuñez, Martín A.; Ledgard, Nicholas J.; Pauchard, Aníbal; Richardson, David M.; Sarasola, Mauro; Vanwilgen, Brian W.; Zalba, Sergio M.; Zenni, Rafael D.; Bustamante Araya, Ramiro; Peña, Eduardo; Ziller, Silvia R. (WILEY-BLACKWELL PUBLISHING, INC, 2009-08)The history of conifers introduced earlier elsewhere in the southern hemisphere suggests that recent invasions in Argentina, Brazil, Chile and Uruguay are likely to increase in number and size. In South Africa, New Zealand ...