Resultados de búsqueda - Chosica~

Comparison of methods for measuring and assessing carbon stocks and carbon stock changes in terrestrial carbon pools. How do the accuracy and precision of current methods compare?:... por Petrokofsky, G., Kanamaru, Hideki, Achard, F., Goetz, S.J, Joosten, H., Holmgren, P, Lehtonen, A, Menton, M., Pullin, A.S., Wattenbach, M.

“…Background: Climate change and high rates of global carbon emissions have focussed attention on the need for high-quality monitoring systems to assess how much carbon is present in terrestrial systems and how these change over time. The choice of system to adopt should be guided by good science. …”
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Top-down, Bottom-up and Sideways: The Multilayered Complexities of Multi-level Actors Shaping Forest Governance and REDD+ Arrangements in Madre de Dios, Peru por Rodríguez Ward, D., Larson, A.M., Gordillo-Ruesta, H.A.

“…In the absence of strong and effective regional regulation for sustainable land use alternatives and the high value of gold on the international market, illegal gold mining proved to be a more profitable land-use choice. Although REDD+ created a new space for multilevel actor interaction and communication and new alliances to emerge, the study questions the prevailing REDD+ discourse suggesting that better coordination and cooperation will lead to integrated landscape solutions. …”
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Consumer demand heterogeneity and valuation of value-added pulse products: a case of precooked beans in Uganda por Aseete, Paul, Katungi, Enid M., Bonabana-Wabbi, Jackline, Birachi, Eliud Abucheli, Ugen, Michael Adrogu

“…An affordable, on-the-shelf bean product that requires less time, fuel and water to cook is thus inevitable. Methods A choice experiment was used to elicit consumer choices and willingness to pay for precooked beans. …”
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Prevalence and mitigation of aflatoxins in Kenya (1960-to date) por Mutegi, C., Cotty, P.J., Bandyopadhyay, Ranajit

“…Economic drivers likely to influence the choice of aflatoxins management options include historical adverse health effects on humans and animals, cost of intervention for mitigation of aflatoxins, knowledge about aflatoxins and their impact, incentives for aflatoxins safe food and intended scope of use of interventions. …”
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Biological control of the cassava mealybug, Phenacoccus manihoti (Hom., Pseudococcidae) by Epidinocarsis lopezi (Hym., Encyrtidae) in West Africa, as influenced by climate and soil por Neuenschwander, Peter, Hammond, W., Ajuonu, O., Gado, A., Echendu, N., Bokonon-Ganta, A.H., Allomasso, R., Okon, I.

“…Population data concerning the cassava mealybug (CM) Phenacoccus manihoti Matile-Ferrero, the introduced parasitoid Epidinocarsis lopezi (De Santis), and indigenous antagonists were collected, together with ecological and plant growth variables, during a survey of 414 fields covering all ecological zones of Nigeria and Benin, for evaluation in multiple regression analyses. The choice of fields was unbiased, and insect populations were estimated from large random samples. …”
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Effect of agriculture-nutrition education and extension services on early adoption and diffusion of biofortfied crops: The case of orange-fleshed sweetpotato in Kenya por Okello, J.J., Muoki, Penina Ngusye, Kwikiriza, N., Wambaya, J., Heck, S.

“…This study used discrete choice regression analysis and data collected from households targeted by a project with one of the most intense agriculture-nutrition education and extension program to test the effect of such education and extension program on the adoption and diffusion of biofortfied crops. …”
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Effects of training duration and the role of gender on farm participation in water user associations in southern Tajikistan: implications for irrigation management por Balasubramanya, Soumya

“…A difference-in-difference technique with right-hand-side covariates is employed, where both sets of data were collected after training was completed. This choice of econometric methods controls against farm-level selection effects, but introduces a potential bias due to measurement error. …”
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Using participatory rural appraisal to investigate food production, nutrition and safety in the Tanzanian dairy value chain por Häsler, Barbara, Msalya, George, Roesel, Kristina, Fornace, Kimberly, Eltholth, Mahmoud, Sikira, Anna, Kurwijila, Lusato R., Rushton, Jonathan, Grace, Delia

“…While milk availability had a strong influence on milk consumption, findings showed that there are a range of other factors such as the consistency of milk, purchasing power and the availability of other foods which also influence consumer choice. A dependence on sensory milk quality attributes in the absence of other systems of certification was described. …”
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Host selection behaviour of the banded pine weevil, Pissodes castaneus (Coleoptera: Curculionidae) por Germano, Monica Daniela

“…The objectives of this work were to describe the host preference behaviour of P. castaneus and the influence of wood damage by conspecifics on its host selection. In two-choice bioassays, P. castaneus showed a feeding preference for Pinus contorta over P. ponderosa. …”
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Intraguild predation by Tupiocoris cucurbitaceus on Encarsia formosa and its influence on biological control of Trialeurodes vaporariorum por Cuello, Eliana Marina, Lopez, Silvia Noemi

“…Our results show that under laboratory conditions T. cucurbitaceus females engage in intraguild predation on E. formosa pupae. However, given the choice, the predator prefers to prey on healthy T. vaporariorum nymphs. …”
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Drosophila suzukii (Diptera: Drosophilidae) distribution modelling improves our understanding of pest range limits por De La Vega, Gerardo, José, Corley, Juan Carlos

“…Correlative models risk underestimation whereas simple mechanistic models provide overestimated range predictions, although using both approaches for the spotted wing drosophila improved range-limit predictions. Model choice when dealing with pests is central to the accurate identification of invasive species limit range and consequently for the deployment of monitoring and early detection programs.…”
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Identification of an Erwinia sp different from Erwinia amylovora and responsible for necrosis on pear blossoms por Roselló, Montserrat, Penyalver, Javier, Llop, Pablo, Gorris, María T., Chartier, R., Garcia, F., Monton, C., Cambra, Mariano, López, María M.

“…Necrotic pear blossoms (NPB) were found in several pear orchards of ‘Ercolini’ (‘Coscia’) and ‘Tendral’ in Turís, Valencia (Spain), in April 1999, during a routine survey, in an area free of Erwinia amylovora. …”
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Biological control of a non-honeydew producer mediated by a distinct hierarchy of honeydew quality por Tena, Alejandro, Llácer, Elena, Urbaneja, Alberto

“…In addition, A. melinus discriminated between honeydews with high and poor nutritional quality in a choice-test. Our results demonstrate that honeydew excreted by hemipterans in citrus show a distinct hierarchy of quality and A. melinus females are able to recognize it. …”
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Use of Straw and Wood Shavings as Nest Material in Primiparous does por Blumetto, O., Olivas, Irene, Torres, Antonio G., Villagrá, Arantxa

“…In rabbit production several materials such as hay straw wood shavings or waste wool and cotton are used as nesting materials during parturition In this work straw and wood shavings were studied as potential materials for nest boxes and a choice test was designed for this purpose Two replicates of 30 primiparous does each were carried out Does were housed 10 d before parturition in a double commercial cage so each doe had access to 2 different nest boxes One of the nests was filled with 8 cm of barley straw and the other with 8 cm of wood shavings so the doe could choose which of them she prepared and gave birth in During the 24 h prior to parturition the state of the nest was assessed according to the mixing of the material and the does hair and the preservation of the original material as well as the chosen nest box When the does gave birth the number of live and dead newborn was recorded In the first replicate 87% of the does chose the straw nest box while in the second replicate 93% of the does did so The number of live kits at birth did not differ statistically for straw and wood shavings nests (8 36 +/- 1 74 vs 6 85 +/- 3 44) but litters reared in straw reacted a higher size at weaning (7 98 +/- 1 73 vs 6 29 +/- 3 35 P<0 05) Finally all the nests achieved a good level of mixing between the original material and the hair of the doe and only 5% of the does removed the original material (regardless of whether it was straw or wood shavings) and made the nest only with their hair In conclusion our results suggest that does might have a strong preference for straw rather than wood shavings as nest material…”
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Complex Mixtures of Viroids Identified in the Two Main Citrus Growing Areas of Iran por Hashemian, S. M. Bani, Taheri, H., Alian, Y. Mohammad, Bove, J. M., Durán-Vila, Núria

“…Infection of the available cultivars with graft-transmissible agents, viroids in particular, may have deleterious effects on the productivity of citrus and, more importantly, limits the choice of rootstocks. Rootstocks other than sour orange and Mexican lime will be needed as a consequence of the introduction and spread of Citrus tristeza virus (CTV) in the country. …”
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Molecular markers : a continuously growing biotechnology area to help citrus improvement por Asins, María J., Mestre, P. F., Herrero, Rubén, Navarro, Luis, Carbonell, Emilio A.

“…The rapid advances of biotechnology give citrus breeders no choice other than to design more efficient breeding programs…”
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Garlic and peppermint essential oils induce defensive responses on sweet peppers por Ricupero, Michele, Biondi, Antonio, Campolo, Orlando, Alonso-Valiente, Miquel, Gallego, Carolina, Zappalà, Lucia, Urbaneja, Alberto, Pérez-Hedo, Mertixell

“…Firstly, through a dual choice test, based on the olfactory response of the model parasitoid Encarsia formosa, garlic and peppermint EOs were selected among different plant extracts over four botanical families (i. e., Apiaceae, Asteraceae, Liliaceae and Lamiaceae). …”
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Inventario de parasitoides y depredadores de moscas de la fruta en hospedantes cultivados y silvestres en la provincia de Vélez (Santander - Colombia) por Cuadros Martínez, Juliana, Insuasty Burbano, Orlando Ildefonso

“…Thus, the agents that can be used according to our environmental conditions and technological development could be identified, making a careful study of this knowledge about the tephritids natural enemies (parasitoids, predators and entomopathogens), including their recognition and bioecology as a choice of an initial population decrease of the fruit fly at national and local levels (Canal, 2004). …”
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Evaluación de la fertilidad de un suelo mediante la producción de materia seca en ensayos de macetas. IV. Determinación de la fórmula de fertilización mediante Trifolium subterrane... por Schenkel S, G., Floody A, T.

“…Eight levels of lime and five fertilizer treatments were used. The choice of soil Santa Sofia was made because it belongs to one of the few Chilean soils which have responded to liming in field tests. …”
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Nursery practice of Pinus caribaea var. hondurensis in Surinam por Voorhoeve, A. G., van Weelderen, A. W. H.

“…Los principales aspectos de estas prácticas son los siguientes: a) Los recipientes empleados para el repique son de cartón asfáltico, de forma cónica con el diámetro inferior de 5,8 cm y el superior de 13,0 cm; su costo es de 2 céntimos surinamenses (US $0,01) puestos en el vivero. b) Las semillas son pregerminadas en avena mojada y replicadas en los recipientes cuando las raicillas alcanzan 1,5-3,0 cm de largo. …”
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