Browsing by Author "Zaviezo Palacios, Tania"
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- ItemA new species of Pseudococcus (Hemiptera: Pseudococcidae) belonging to the Pseudococcus maritimus complex from Chile: molecular and morphological description(2011) Correa, Margarita; Aguirre, Carlos; Germain, Jean-Francois; Hinrichsen, Patricio; Zaviezo Palacios, Tania; Malausa, Thibaut; Prado, Ernesto
- ItemA transient, positive effect of habitat fragmentation on insect population densities(2004) Grez, A.; Zaviezo Palacios, Tania; Tischendorf, L.; Fahrig, L.
- ItemA Vision for Global Biodiversity Monitoring With Citizen Science(2018) Pocock, Michael J. O.; Chandler, Mark; Bonney, Rick; Thornhill, Ian; Albin, Anna; August, Tom; Bachman, Steven; Brown, Peter M. J.; Fernandes Cunha, Davi Gasparini; Grez, Audrey; Jackson, Colin; Peters, Monica; Rabarijaon, Narindra Romer; Roy, Helen E.; Zaviezo Palacios, Tania; Danielsen, Finn
- ItemBiology and management of mealybugs in Vineyards(2012) Daane, K.M.; Almeida, R.P.P.; Bell, V.A.; Walker, J.T.S.; Botton, M.; Fallahzadeh, M.; Mani, M.; Miano, J.L.; Sforza, R.; Walton, V.M.; Zaviezo Palacios, Tania
- ItemCharacterization of microsatellite DNA libraries from three mealybug species and development of microsatellite markers for Pseudococcus viburni (Hemiptera: Pseudococcidae)(2014) Correa, M.; Zaviezo Palacios, Tania; Le, Maguet J.; Herrbach, E.; Malausa, T.
- ItemCitizen Science and Phytosanitary Surveillance Systems Are Complementary Tools to Follow the Invasion of Harmonia axyridis(2023) Grez, Audrey A.; Zaviezo Palacios, Tania; Orellana, Ignacio; Pino, Luna; Roy, Helen E.; Torres, Fernando; Rebolledo, ClaudiaCitizen science is a valuable tool for early detection, distribution, and spread of invasive alien species (IAS). Nevertheless, citizen science initiatives have several potential biases and may be complemented with long-term structured monitoring schemes. We analyzed the spatial-temporal dynamics of the invasion of Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae) in Chile, based upon two citizen sciences databases (WEB and INAT) and one structured monitoring (SAG). We collected 8638 H. axyridis occurrences between 2009 and 2020. WEB had a higher number of records than SAG and INAT, and in all databases, the number of records has increased over time. The three databases showed that the invasion started in central Chile and then spread toward the north and south. The WEB and SAG recorded occurrences in the extreme north and south, whereas INAT concentrated all the occurrences in a more limited area, included in WEB and SAG. Both citizen science initiatives concentrated their records in areas of high human populations whereas SAG records had a more even distribution across regions. At 2020, WEB accounted for 55%, SAG 54%, and INAT 8% of the total area accumulated with H. axyridis, with only 16% of area shared among databases. WEB and INAT obtained most of their records in urban and industrial land cover types, while SAG records were more evenly represented in different land cover types. Our results confirm that combined methods, including citizen science initiatives, national surveillance system, and localized samplings, complement each other in providing knowledge to understand the patterns, processes, and consequences of this invasion.
- ItemClimate change impacts on invasive potential of pink hibiscus mealybug, Maconellicoccus hirsutus (Green), in Chile(2013) Jara Contreras, Valentina Isabel; Meza, Francisco Javier; Zaviezo Palacios, Tania; Chorbadjian Alonso, Rodrigo ArmenMaconellicoccus hirsutus (Green) (Hemiptera: Pseudoccidae) is an important pest in many countries being responsible for considerable economic loses. Although it is not currently present in Chile, the chance that it could be accidentally introduced rises with the list of infested countries increasing over the last years. In addition, climate change projections indicate that a larger region would fit as potential habitat for this pest, allowing it to persist over time and colonize a larger proportion of the Chilean territory. In this study the geographic distribution and the number of generations this mealybug would develop in Chile were determined, under current temperatures and under two projected climatic scenarios. Cumulative degree days were calculated for current and future scenarios using a lower temperature threshold of 14.5 degrees C, with 624.5 degree-days as the thermal requirement for the species to complete one generation. The results show that under current climate conditions M. hirsutus could develop up to three generations in the north of the country (i.e. 18 degrees South) and one generation in the region near 37 degrees South. Under future scenarios' conditions the pest could develop up to five generations in the north, and one generation around the 42 degrees South. Present climate conditions in Chile would allow the establishment of the pink hibiscus mealybug, if the pest enters the country. Climate change conditions would allow the potentially invaded area to expand south, and would promote the development of more generations per year of the mealybug in the studied territory.
- ItemComunidades indígenas del Norte Grande. Propuestas para una agricultura sustentable(2015) Bonomelli de Pinaga, Claudia María; Gil Montenegro, Pilar Macarena; Sallato, Bernardita; Zaviezo Palacios, Tania
- ItemConservation biological control of arthropod pests using native plants(2023) Zaviezo Palacios, Tania; Alejandra E Muñoz
- ItemCorrigendum to "Chrysanthemyl 2-acetoxy-3-methylbutanoate: the sex pheromone of the citrophilous mealybug, Pseudococcus calceolariae" [Tetrahedron Lett. 51 (2010) 1075](2010) El-Sayed, A.M.; Unelius, C.R.; Twidle, A.; Mitchell, V.; Manning, L.-A.; Cole, L.; Suckling, D.M.; Flores, M.F.; Zaviezo Palacios, Tania; Bergmann, J.
- ItemDevelopment of a multiplex PCR for identification of vineyard mealybugs(2011) Daane, K.M.; Middleton, M.C.; Sforza, R.; Cooper, M.L.; Walton, V.M.; Walsh, D.B.; Zaviezo Palacios, Tania; Almeida, R.P.P.
- ItemDevelopment of microsatellite markers and detection of genetic variation between Goniozus wasp populations(2014) Khidr, S.; Hardy, I.; Zaviezo Palacios, Tania; Mayes, S.
- ItemDinámica temporal de coleópteros asociados a alfalfa.(2004) Zaviezo Palacios, Tania
- ItemEfecto de la diversidad genética en la respuesta al estrés por temperatura de poblaciones e individuos de Mastrus ridens (Hymenoptera : Ichneumonidae)(2021) Morales Vega, Bárbara Paz; Zaviezo Palacios, Tania; Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería ForestalLa variabilidad genética puede afectar la respuesta de los insectos ante condiciones ambientales variables y estresantes. En este trabajo estudiamos el efecto de la variabilidad genética en el crecimiento poblacional y adecuación biológica de poblaciones e individuos de líneas endogámicas y exogámicas de M. ridens (Hymenoptera: Ichneumonidae), un importante parasitoide de la polilla de la manzana (Cydia pomonella), cuando son expuestas a temperaturas constante optimas (TC = 25ºC) o a temperaturas variables extremas (TV= 1 h a 33ºC, 20 min a 25ºC, 1 h a 6ºC y el resto a 25ºC) durante toda su vida. Los experimentos poblacionales fueron observados durante tres generaciones, mientras que aquellos experimentos de hembras individuales fue de una generación y de la línea L39 por dos generaciones. En los resultados encontramos que la variabilidad genética si afecta en parte la capacidad de poblaciones y hembras individuales, para responder a condiciones ambientales variables y estresantes. Los parámetros asociados fueron: el número total de individuos generados y la cantidad de hijos. Por otra parte, la falta de efectos en el radio sexual sugiere que el mecanismo de determinación de sexos no sería un factor relevante en la adecuación en condiciones de temperaturas variables y extremas. Estos resultados destacan la necesidad de realizar más estudios de adecuación biológica frente a enemigos naturales en ambientes estresantes debido a la contingencia del cambio climático.
- ItemEfectos inmediatos de la fragmentación del habitat sobre la abundancia de insectos en alfalfa = Inmediate effects of habitat fragmentation on insect abundance in alfalfa.(2002) Grez, A. A.; Zaviezo Palacios, Tania
- ItemEffect of prey density on intraguild interactions among foliar- and ground-foraging predators of aphids associated with alfalfa crops in Chile: a laboratory assessment(2011) Grez Villarroel, Audrey A.; Zaviezo Palacios, Tania; Mancilla, Angélica
- ItemEffectiveness of 3 phenylamide fungicides against phytophthora-cryptogea isolated from kiwi and their mobility in soil(1993) Zaviezo Palacios, Tania; LATORRE, BA; TORRES, R
- ItemEffectiveness of three phenylamide fungicides against Phytophthora cryptogea isolated from Kiwi and their mobility in soil(1993) Zaviezo Palacios, Tania; Latorre, B.A.; Torres, R.
- ItemEffects of inbreeding on a gregarious parasitoid wasp with complementary sex determination(2018) Zaviezo Palacios, Tania; Retamal, Romina; Urvois, Teddy; Fauvergue, Xavier; Blin, Aurélie; Malausa, Thibaut
- ItemEuropean bridgehead effect in the worldwide invasion of the obscure mealybug(2019) Correa Gutiérrez, Margarita; Palero, Ferran; Malausa, Thibaut; Crochard, Didier; Zaviezo Palacios, Tania
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