Now showing items 1-13 of 13

    • Pocock, Michael; Chandler, Mark; Bonney, Rick; Thornhill, Ian; Albin, Anna; August, Tom; Bachman, Steven; Brown, Peter; Fernandes Cunha, Davi; Grez Villarroel, Audrey; Jackson, Colin; Peters, Monica; Romer Rabarijaon, Narindra; Roy, Helen; Zaviezo, Tania; Danielsen, Finn (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 ...
    • 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, ...
    • Grez Villarroel, Audrey; Zaviezo, Tania; Díaz, Sandra; Camousseigt, Bernardino; Cortés, Galaxia (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 ...
    • Honek, Alois; Brown, Peter M. J.; Martinkova, Zdenka; Skuhrovec, Jiri; Brabec, Marek; Burgio, Giovanni; Evans, Edward W.; Fournier, Marc; Grez Villarroel, Audrey; Kulfan, Jan; Lami, Francesco; Lucas, Eric; Lumbierres, Belén; Masetti, Antonio; Mogilevich, Timofej; Orlova-Bienkowskaja, Marina; Phillips, William M.; Pons, Xavier; Strobach, Jan; Viglasova, Sandra; Zach, Peter; Zaviezo, Tania (Springer, 2020)
      The Harlequin ladybird Harmonia axyridis Pallas, native to eastern Asia, is an invasive, non-native species that has recently achieved an almost worldwide distribution. A conspicuous feature of this species is colour ...
    • 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 ...
    • Grez Villarroel, Audrey; Zaviezo, Tania; González, Guillermo; Rothmann, Sergio (Pontificia Universidad Católica de Chile, Facultad de Agronomía e Ingeniería Forestal, 2010)
      In this work, we document the presence of Harmonia axyridis in Chile, an invasive coccinellid species that has had negative effects in other regions of the world, such as: Impacts on non-target arthropods, invasions of ...
    • Grez Villarroel, Audrey; Zaviezo, Tania; Roy, Helen E.; Brown, Peter M. J.; Segura, Bernardo (Wiley, 2017)
      1. Harmonia axyridis has invaded many regions of the world, with negative effects on local biodiversity, and thus it is of global concern for biological conservation. Recently it has invaded central Chile, one of the world's ...
    • Zaviezo, Tania; Soares, Antonio Onofre; Grez Villarroel, Audrey (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 ...
    • 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 ...
    • 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 ...
    • Ceryngier, Piotr; Nedved, Oldrich; Grez Villarroel, Audrey; Riddick, Eric W.; Roy, Helen E.; San Martín, Gilles; Steenberg, Tove; Vesely, Petr; Zaviezo, Tania; Zúñiga Reinoso, Álvaro; Haelewaters, Danny (Springer, 2018)
      The harlequin ladybird Harmonia axyridis (Coleoptera: Coccinellidae) has rapidly spread in several continents over the past 30 years and is considered an invasive alien species. The success of H. axyridis as an invader is ...
    • Grez Villarroel, Audrey; Zaviezo, Tania; Roy, Helen E.; Brown, Peter M. J.; Bizama, Gustavo (Wiley-Blackwell, 2016)
      Aim Biological invasions are one of the major threats to biodiversity. Usually highly disturbed anthropogenic habitats favour invasion by alien species such as the coccinellid Harmonia axyridis. The spread and impact of ...
    • Grez Villarroel, Audrey; Zaviezo, Tania; Gardiner, Mary M.; Alaniz, Alberto J. (Elsevier GmbH, 2019)
      Urbanization alters community composition, frequently leading to decline in native species abundance and richness. Nevertheless, responses might also depend on trait-based local habitat and landscape-scale filters. In this ...