Browsing by Author "Grez Villarroel, Audrey"
Now showing items 1-20 of 29
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(Academic Press Inc., 2018)Global biodiversity monitoring is urgently needed across the world to assess the impacts of environmental change on biodiversity. One way to increase monitoring is through citizen science. ‘Citizen science’ is a term that ...
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(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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(1993)Frugivores affect Cryptocarya alba seeds both positively and negatively by the simple act of removing the pericarp of the fruits. Germination is both increased and advanced but simultaneously seed mortality by rodent ...
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(Elsevier B.V., 2019)The intensive management of tree plantations has replaced and fragmented native forests worldwide. A direct consequence of this activity is the creation of new edges, which generate changes in microclimatic conditions in ...
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(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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(Pontificia Universidad Catolica de Chile, Facultad de Agronomia e Ingenieria Forestal, 2011)Habitat fragmentation can affect the morphological design of flying insects in different ways through changes in the costs and benefits of dispersal patterns. Larger wings should be favored if necessary resources are ...
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(2008)At the Maulino forest, herbivory upon Aristotelia chilensis (maqui) is negatively affected by forest fragmentation, being higher in the continuous forest than in the small remnant fragments, particularly at the beginning ...
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(Universidad de Chile, 2016)La “chinita arlequín”, Harmonia axyridis, fue introducida en varios países de Europa y América como agente controlador de plagas. Sin embargo, en un corto tiempo se transformó en una especie invasora, generando impactos ...
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(Universisdad de Chile, 2008)La fragmentación y perdida de hábitat son las causas mas importantes de la disminución de la biodiversidad. La fragmentación es la división del hábitat continuo en numerosos parches mas pequeños y aislados entre si por una ...
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(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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(Czech Academy of Sciences, 2008)In agro-ecosystems, habitat loss and fragmentation may alter the assemblage of aphidophagous insects, such as foliarforaging (coccinellids) and ground-foraging predators (carabids), potentially affecting intraguild ...
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(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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(Universidad de Chile, 2016)Los coccinélidos (Coleoptera: Coccinellidae) son insectos importantes por su capacidad y eficacia como controladores de plagas agrícolas. Dentro de ellos, Harmonia axryridis o chinita arlequín es una especie invasora ...
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(2007)Forest fragmentation alters plant-animal interactions, including herbivory. Relying manipulative experiments, we test if the reduction in insect herbivory associated with forest fragmentation translates into increased ...
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(Academic Press Inc., 2019)The invasion of Harmonia axyridis has had negative consequences on coccinellid assemblages, with a decline in abundance and diversity, but the coexistence of invasive and resident species may depend on the strength of ...
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Is top-down control by predators driving insect abundance and herbivory rates in fragmented forests? (2012)The effects of forest fragmentation on ecological interactions and particularly on food webs have scarcely been analysed. There is usually less herbivory in forest fragments than in continuous forests. Here we hypothesize ...
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(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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(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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(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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(Springer Netherlands, 2017)© 2016, Springer Science+Business Media Dordrecht. Context: Interactions between landscape-scale processes and fine-grained habitat heterogeneity are usually invoked to explain species occupancy in fragmented landscapes. ...
