Potential risk levels of invasive Neoleucinodes elegantalis (small tomato borer) in areas optimal for open‐field Solanum lycopersicum (tomato) cultivation in the present and under predicted climate change          下载免费PDF全文

Ricardo Siqueira da Silva  Lalit Kumar  Farzin Shabani  Marcelo Coutinho Picanço 《Pest management science》2017,73(3):616-627

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Economic injury levels and sequential sampling plans for Frankliniella schultzei in watermelon crops          下载免费PDF全文

Poliana S Pereira  Renato A Sarmento  Tarcísio VS Galdino  Carlos HO Lima  Fábio A dos Santos  Joedna Silva  Gil R dos Santos  Marcelo C Picanço 《Pest management science》2017,73(7):1438-1445

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Toxicity and residual effects of insecticides on Ascia monuste and predator Solenopsis saevissima          下载免费PDF全文

Tamíris A de Araújo  Marcelo C Picanço  Dalton de O Ferreira  Júlia ND Campos  Lucas de P Arcanjo  Gerson A Silva 《Pest management science》2017,73(11):2259-2266

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Production of Energy and Biofertilizer from Cattle Wastewater in Farms with Intensive Cattle Breeding     

Henrique Vieira de Mendonça  Jean Pierre Henry Balbaud Ometto  Marcelo Henrique Otenio 《Water, air, and soil pollution》2017,228(2):72

This study evaluates the treatment efficacy and biogas yield of an integrated system composed of a plug-flow biodigester (with sludge recirculation) followed by polishing in a stabilization pond. The system was operated in real scale for 12 months at ambient temperature and under continuous flow. The volumetric yields of biogas varied according to the organic loads applied, between 114 and 294 Kg COD day^?1, reaching levels of 0.026 to 0.173 m³ m^?3 day^?1, with concentrations of CH₄ between 56 and 70%. The monthly biogas productions were between 378.5 and 2186.1 m³ month^?1 equal to an energy potential of approximately 2070 to 19,168 KWh month^?1.The average yearly removals of BOD_5,20 and COD by the integrated treatment system were 70 and 86%, respectively. The average annual removals of NH₄ and TKN were 88.5 and 85.5%, respectively. The pH values were always near neutral, and the alkalinity was in ranges propitious for anaerobic digestion. The results of this study indicate good efficacy in terms of removal of organic matter and nitrogen compounds, with the added benefits of generation of energy and use of the treated effluent as biofertilizer, enabling significant cost reductions to cattle farmers.  相似文献   

Do fish isotopic niches change in an Amazon floodplain lake over the hydrological regime?     

Lucas Silva Azevedo  Incio Abreu Pestana  Marcelo Gomes Almeida  Wanderley Rodrigues Bastos  Cristina Maria Magalhes Souza 《Ecology of Freshwater Fish》2022,31(1):72-80

Floodplain lakes are ecosystems characterised by annual flood and dry cycles. Fish ecology is influenced by the flood pulse due to the large influx of allochthonous food resources and diversification of habitats during the flood cycle, while during the dry cycle, fishes tend to be confined in reduced habitat. The aim of this study was to evaluate the seasonal variation in trophic niche width and overlap of four species—Mylossoma duriventre, Prochilodus nigricans, Cichla.pleiozona and Serrasalmus rhombeus—in an Amazonian floodplain lake. Stable isotope analyses were used to estimate trophic niche width and overlap during the flood and dry seasons. We hypothesised broader niche width for all species during the flood cycle and a higher degree of overlap between the two piscivorous fishes during the dry cycle. Isotopic niche width was 72% broader for P. nigricans, 61% for S. rhombeus and 54% for C. pleiozona during the dry cycle, which did not support our hypothesis. Core niche width overlaps were not observed between piscivorous species in either flood or dry cycle. The results indicate that seasonal variation in isotopic niche width is specific to feeding habit. Understanding how fish trophic ecology responds to changes in the hydrological regime during the seasons is crucial for sustainable fishery management in a region where many people rely heavily on fish for nutritional and economic purposes.  相似文献