Foraging Behavior, Direct Interference and Habitat Use in Three Species of Flamingos (Phoenicopterus Chilensis, Phoenicoparrus Andinus and Phoenicoparrus Jamesi) in Mar Chiquita Lagoon, Córdoba, Argentina     

Lucila CASTRO  Ricardo TORRES 《《地质学报》英文版》2014,88(Z1):63-64

正The Laguna Mar Chiquita,located northeast of the province of Córdoba in Argentina,is the only non-Andean place where three flamingo species regularly coexist in the southern part of South America.Two of these species,  相似文献   

Biomarkers in croakers Micropogonias furnieri (Teleostei: Sciaenidae) from polluted and non-polluted areas from the Patos Lagoon estuary (Southern Brazil): evidences of genotoxic and immunological effects     

Amado LL  da Rosa CE  Leite AM  Moraes L  Pires WV  Pinho GL  Martins CM  Robaldo RB  Nery LE  Monserrat JM  Bianchini A  Martinez PE  Geracitano LA 《Marine pollution bulletin》2006,52(2):199-206

Biomarkers of exposure and effect of pollutants were analyzed in croakers Micropogonias furnieri (Teleostei: Sciaenidae) captured in winter and summer in a polluted and in a non-polluted site at the Patos Lagoon estuary (Southern Brazil). Catalase and glutathione S-transferase activities (exposure biomarkers) and lipid peroxidation (effect biomarker) were analyzed in liver samples. Other two effect biomarkers were also studied: blood cells DNA damage (through comet assay and micronucleus test) and respiratory burst measurements. In a broad view, results point to an important seasonal variation of the biochemical biomarkers analyzed. However, data obtained clearly indicate that croakers collected in winter at the polluted site were subjected to a level of clastogenic agents sufficient to generate irreversible genetic damages (mutations) and impair the fish immune system.  相似文献   

P-T conditions of earliest Late Cretaceous metamorphism in the Western Sonobari Complex,northwestern Mexico: tectonic implications     

Ricardo Vega-Granillo  Alicia Sarmiento-Villagrana  Sergio Salgado-Souto  Elizabeth Araux-Sánchez 《International Geology Review》2017,59(7):812-828

The Western Sonobari Complex in northwestern Mexico consists of metamorphosed rocks mostly derived from Palaeozoic (?) sedimentary and Mesozoic igneous protoliths. Rocks of this complex display amphibolite facies orogenic metamorphism, pervasive foliation, migmatization, and four folding phases. These features are ascribed to a contractional tectonic event with NNW–SSE shortening direction, which caused thrusting, thickening of the crust, and sinking of the lithological units. U–Pb geochronology of migmatitic leucosome bands indicates that peak metamorphic conditions were reached between ~93 and 89 Ma. Post-tectonic Late Cretaceous peraluminous aplite-pegmatite dikes transect the metamorphic foliation. Traditional thermobarometry in the metamorphic rocks yields average pressures and temperatures of 9.0–7.1 kbar and 745–663°C, typical of intermediate P/T Barrovian metamorphism. On the basis of its age and contractional character, the thickening event originating the metamorphism may be related to collision of the Alisitos island arc against crustal blocks of Mexico. Thermobarometric data of post-tectonic intrusives including Late Cretaceous granodiorite and Eocene gabbro indicate emplacement within an overthickened crust, while P-T conditions of post-tectonic dikes point towards an almost isothermal decompression path along the amphibolite facies field. Rock units of similar age and metamorphic character are discontinuously exposed from the Islas Marias offshore the Nayarit coast to the Peninsular Ranges batholith of Baja California, and even extend north into the Sierra Nevada batholith and the Sevier hinterland. This extensive belt of Barrovian metamorphic rocks thus provides a record of middle Cretaceous shortening and crustal thickening related to arc-continent collision followed by subduction resuming.  相似文献   

Inspiring the next generation of scientists with their observations of quasars,black holes,Jupiter, and SETI with the Goldstone Apple Valley Radio Telescope,GAVRT     

D. L. Jauncey  S. Levin  L. Teitelbaum  M. Hofstadter  J. Arballo  S. McConnell  R. Dorcey  K. Cole  N. Kreuser-Jenkins  J. Leflang  E. Kruzins  L. Ricardo  S. Horiuchi  G. Nagle  C. G. Miro 《Astronomy Reports》2017,61(4):281-287

This paper describes a radio astronomy programfor schools, the Goldstone-AppleValley Radio Telescope,GAVRT. The GAVRT program is designed to bring the inspiration and enthusiasm to a younger generation of teachers and children who learn about science by doing real science, just as Iosif Shklovsky brought to an older generation.  相似文献   

Geostatistics for Natural Resources Evaluation By Pierre Goovaerts, Oxford University Press, Applied Geostatistics Series, 1997, 483 p., hardcover, $65 (U.S.), ISBN 0-19-511538-4     

Ricardo A. Olea 《Mathematical Geology》1999,31(3):349-350

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Stellar Populations in the Near Infrared     

Ricardo P. Schiavon 《Astrophysics and Space Science》1999,265(1-4):289-290

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Advancements in hydrochemistry mapping: methods and application to groundwater arsenic and iron concentrations in Varanasi,Uttar Pradesh,India     

Ricardo?A.?OleaEmail author  N.?Janardhana?Raju  Juan?José?Egozcue  Vera?Pawlowsky-Glahn  Shubhra?Singh 《Stochastic Environmental Research and Risk Assessment (SERRA)》2018,32(1):241-259

The area east of Varanasi is one of numerous places along the watershed of the Ganges River with groundwater concentrations of arsenic surpassing the maximum value of 10 parts per billion (ppb) recommended by the World Health Organization in drinking water. Here we apply geostatistics and compositional data analysis for the mapping of arsenic and iron to help in understanding the conditions leading to the occurrence of elevated level of arsenic in groundwater. The methodology allows for displaying concentrations of arsenic and iron as maps consistent with the limited information from 95 water wells across an area of approximately 210 km²; visualization of the uncertainty associated with the sampling; and summary of the findings in the form of probability maps. For thousands of years, Varanasi has been on the erosional side in a meander of the river that is free of arsenic values above 10 ppb. Maps reveal two anomalies of high arsenic concentrations on the depositional side of the valley, which has started seeing urban development. The methodology using geostatistics combined with compositional data analysis is completely general, so this study could be used as a prototype for hydrochemistry mapping in other areas.  相似文献   

Editorial—the 8th International Workshop on Modeling the Ocean (IWMO 2016) in Bologna,Italy, June 7–10, 2016     

Tal Ezer  Lie-Yauw Oey  Huijie Xue  Marco Zavatarelli  Gianmaria Sannino  Ricardo de Camargo 《Ocean Dynamics》2018,68(1):153-156

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The 10th International Workshop on Modeling the Ocean (IWMO 2018) in Santos,Brazil, June 25–28, 2018     

Ezer  Tal  de Camargo  Ricardo  Tanajura  Clemente A. S.  Xu  Fanghua  Xue  Huijie 《Ocean Dynamics》2020,70(6):839-841

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Global assessments of the NCEP Ensemble Forecast System using altimeter data     

Campos  Ricardo Martins  Alves  Jose-Henrique G.M.  Penny  Stephen G.  Krasnopolsky  Vladimir 《Ocean Dynamics》2020,70(3):405-419

Ocean Dynamics - Forecasts of 10-m wind (U10) and significant wave height (Hs) from the National Centers for Environmental Prediction (NCEP) Ensemble Forecast System are evaluated using altimeter...  相似文献