Browsing by Author "Grez Villarroel, Audrey"
Now showing items 1-11 of 11
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Russek, Lia A.; Mansilla, Carolina L.; Crespin, Silvio J.; Simonetti Zambelli, Javier Andrés; Grez Villarroel, Audrey (Springer, 2017)The replacement of native forests by Pinus radiata plantations modifies habitat availability and quality for wildlife, constituting a threat to species survival. However, the presence of understory in mature pine plantations ...
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Grez Villarroel, Audrey; Viera, B.; Soares, A. O. (The Netherlands Entomological Society, 2012)Human-assisted introductions, including those in the context of biological control, are considered to be one of the most important factors of global environmental change. However, the mechanisms underlying environmental ...
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Grez Villarroel, Audrey; Zaviezo, Tania; Mancilla, Angélica (2011)Among the aphidophaga guild present in alfalfa [Medicago sativa L. (Fabaceae)], coccinellids forage on aphids most of the time on the foliage and carabids on the ground. The result of their combined effect can be synergistic, ...
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Grez Villarroel, Audrey; Rivera, Pamela; Zaviezo, Tania (2007)Carabids and coccinellids are the most abundant aphid predators in alfalfa. Depending on the amount of prey consumed, the impact of their combined effect can be additive, antagonistic, or synergistic. Laboratory trials ...
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Grez Villarroel, Audrey; Rand, Tatyana A.; Zaviezo, Tania; Castillo Serey, Francisca (2013)Aim: Both anthropogenic habitat disturbance and the breadth of habitat use by alien species have been found to facilitate invasion into novel environments, and these factors have been hypothesized to be important within ...
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Grez Villarroel, Audrey; Zaviezo, Tania; Gardiner, Mary M. (Elsevier, 2014)The biological control service supplied to croplands is a result of the predator community present within a focal crop, which is likely influenced by surrounding landscape composition and configuration. In this study, ...
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Grez Villarroel, Audrey; Torres, Constanza; Zaviezo, Tania; Lavandero, Blas; Ramírez, Marcelo (Pontificia Universidad Católica de Chile, Facultad de Agronomía e Ingeniería Forestal, 2010)Permanent and permeable edges, where natural enemies can feed, overwinter or easily cross over, should enhance the early arrival of these predators to crops. We evaluated the abundance and species richness of coccinellids ...
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Rodríguez San Pedro, Annia; Carrasco Allendes, Juan Luis; Beltrán, Clemente A.; Chaperón Gamboa, Pascal; Saldarriaga-Córdoba, Mónica María; Silva, Andrea X.; Grez Villarroel, Audrey (Elsevier, 2020)The top-down suppression of pest insects by their natural enemies, such as insectivorous bats, represents an important ecosystem service in agricultural systems. Recognizing the importance of bats to suppress pest populations ...
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Cerda, Yendery; Grez Villarroel, Audrey; Simonetti Zambelli, Javier Andrés (Springer, 2015)Tree plantations may play a role in the conservation of global forest biodiversity. At the landscape scale, plantations with a complex understory may provide surrogate habitats for forest-dwelling organisms. This was tested ...
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Grez Villarroel, Audrey; Zaviezo, Tania; Reyes, Susana (SOCIEDAD BIOLOGIA CHILE, 2004-09)Habitat loss and fragmentation are considered as the main causes of biodiversity depression. Habitat loss implies a reduction of suitable habitat for organisms, and habitat fragmentation is a change in the spatial configuration ...
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Romero, Violeta; Zaviezo, Tania; Grez Villarroel, Audrey (Pontifica Univ. Católica de Chile, 2020)Harmonia axyridis (Pallas) has invaded most continents in the world, including South America. In Chile, it became invasive after 2010, turning into a dominant species in coccinellid guilds in alfalfa crops, where it coexists ...