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| Registros recuperados: 99 | |
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| Bortolotto,Orcial C.; Bueno,Adeney F.; Stopa,Ynaiara K.; Silva,Gabriela V.; Queiroz,Ana Paula. |
| Dichelops melacanthus was studied under controlled conditions (60 ± 10% RH and 14/10 h L/D photoperiod), and three constant temperatures (19, 25, and 31 ± 2 °C). Fresh pods of MON 87701 × MON 89788 soybeans and its near non-Bt isoline (A5547) were supplied to nymphs and adults. The biology of T. podisi was studied in the same controlled RH conditions, but only at the standard temperature of 25 ± 2 °C. Overall, the development of D. melacanthus was better at higher temperatures, which accelerated the development of the stink bug without affecting adult biological parameters. No influence of Bt-soybeans on the biology of the pest was observed in any temperature studied, which shows that D. melacanthus is not affected by this transgenic soybean. The egg... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Egg parasitoids; Global warming; Natural enemy; Non-target organisms. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000301023 |
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| Mesquita,Afranio R. de; Blitzkow,Denizar; França,Carlos A. S.; Trabanco,Jorge L. A.; Corrêa,Marco A.; Monteiro,Mauro Q.. |
| The limits between sea and land were estimated at "Pulso" beach located in the Southeastern Brazilian shelf (φ = 23°33/17.4886"S; Λ = 045° 13'13.0504"W - WGS84), between the island of São Sebastião and the city of Ubatuba, SP, Brazil. The relative sea level of the year 1831 at "Pulso" beach, as per Brazilian law Number 9760 dated from 1946, was estimated and materialized. The retro-estimation allowed the demarcation of the Legal Sea-Land Limits at "Pulso" beach as per the terms of the law. The accuracy of the procedure for the transference of the long-term sea level from the research station of Ubatuba to "Pulso" beach was assessed by parallel work of geometrical leveling referred to the IBGE (Brazilian Institute of Geography and Statistics) geodetic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Relative Sea Level; Brazilian law; Sea-Land Limits; "Pulso" beach; Geodetic leveling; Southeastern Brazilian shelf; Global warming; Sea level rise. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000400009 |
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| Navarro,Fernanda Keley Silva Pereira; Rezende,Renan de Souza; Gonçalves Júnior,José Francisco. |
| The role of the invertebrate shredders in leaf decomposition process in tropical lotic ecosystems has been explored only recently. In addition to the influence of the quality of litter and the temperature, the risk of predation generally results in changes on the survival and behavior of invertebrate shredders. The aim of this study was to observe the responses of the invertebrate shredders to different species of leaf litters (Experiment 1: Talauma ovata and Inga laurina ; Experiment 2: Talauma ovata, Inga laurina and Richeria grandis ) under gradual temperature rise (24 °C, 26 °C, 28 °C, 30 °C, 32 °C), in the presence (Experiment 2) and absence (Experiment1) of fish (Astyanax sp.) carcasses, as well as to observe the possible consequences of the leaf... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feeding activity; Global warming; Decomposition. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000400028 |
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| Streck,Nereu Augusto. |
| The amount of carbon dioxide (CO2) of the Earth´s atmosphere is increasing, which has the potential of increasing greenhouse effect and air temperature in the future. Plants respond to environment CO2 and temperature. Therefore, climate change may affect agriculture. The purpose of this paper was to review the literature about the impact of a possible increase in atmospheric CO2 concentration and temperature on crop growth, development, and yield. Increasing CO2 concentration increases crop yield once the substrate for photosynthesis and the gradient of CO2 concentration between atmosphere and leaf increase. C3 plants will benefit more than C4 plants at elevated CO2. However, if global warming will take place, an increase in temperature may offset the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Global warming; Photosynthesis; Agriculture; Food supply. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782005000300041 |
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| Carrera Villacrés, David Vinicio. |
| El desarrollo geológico de la Sierra Madre Oriental y la Plataforma Valles-San Luis, estados de Querétaro y San Luis Potosí en donde se localiza la cuenca evaporítica de Río Verde-Matehuala, formó una diversidad salina de aguas y suelos. La salinidad causa baja fertilidad y deterioro en los campos agrícolas, solamente el manantial de Media Luna riega aproximadamente 5000 ha, lo que hace relevante su estudio. Los objetivos de este trabajo fueron conocer la salinidad cuantitativa y cualitativa tanto en aguas como en suelos, además, determinar la vía evolutiva que toman las aguas en la meteorización por evaporación de las mismas como un ejemplo del calentamiento global y, relacionar los efectos de la salinidad de las aguas y suelos sobre los cultivos. La... |
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Palavras-chave: Geoquímica; Evolución de las aguas; Calentamiento global; Sodicidad; Geochemistry; Water evolution; Global warming; Sodicity; Doctorado; Hidrociencias. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/476 |
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| Carrera Villacrés, David Vinicio. |
| El desarrollo geológico de la Sierra Madre Oriental y la Plataforma Valles-San Luis, estados de Querétaro y San Luis Potosí en donde se localiza la cuenca evaporítica de Río Verde-Matehuala, formó una diversidad salina de aguas y suelos. La salinidad causa baja fertilidad y deterioro en los campos agrícolas, solamente el manantial de Media Luna riega aproximadamente 5000 ha, lo que hace relevante su estudio. Los objetivos de este trabajo fueron conocer la salinidad cuantitativa y cualitativa tanto en aguas como en suelos, además, determinar la vía evolutiva que toman las aguas en la meteorización por evaporación de las mismas como un ejemplo del calentamiento global y, relacionar los efectos de la salinidad de las aguas y suelos sobre los cultivos. La... |
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Palavras-chave: Geoquímica; Evolución de las aguas; Calentamiento global; Sodicidad; Geochemistry; Water evolution; Global warming; Sodicity; Doctorado; Hidrociencias. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/476 |
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| Palo, Thomas R; Mid-Sweden University; Thomas.palo@miun.se. |
| Tularemia is caused by the bacterium Francisella tularensis, but the natural reservoir is unknown and environmental conditions for outbreaks in mammals and man are poorly understood. The present study analyzed the synchrony between the North Atlantic Oscillation (NAO) index, the number of human cases of tularemia reported in Sweden, and the density of hares. Climate variation at a lag of 2 yr explained as a single factor ~ 27% of the variation in the number of tularemia cases over time. A low NAO index, indicating cold winters, and low water flow in rivers during the coming summer were associated with high numbers of human cases of tularemia 2 yr later. The number of mountain hares was not related to NAO or to the number of cases of tularemia. The change... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Tularemia; Climate; North Atlantic Oscillation index; Disease transmission; Global warming; Francisella tularensis; Lepus timidus. |
| Ano: 2005 |
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| Streck,Nereu A.; Uhlmann,Lilian O.; Zanon,Alencar J.; Bisognin,Dilson A.. |
| The objective of this study was to simulate the impact of elevated temperature scenarios on leaf development of potato in Santa Maria, RS, Brazil. Leaf appearance was estimated using a multiplicative model that has a non-linear temperature response function which calculates the daily leaf appearance rate (LAR, leaves day-1) and the accumulated number of leaves (LN) from crop emergence to the appearance of the upper last leaf. Leaf appearance was estimated during 100 years in the following scenarios: current climate, +1 °C, +2 °C, +3 °C, +4 °C e +5 °C. The LAR model was estimated with coefficients of the Asterix cultivar in five emergence dates and in two growing seasons (Fall and Spring). Variable of interest was the duration (days) of the crop emergence... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum tuberosum; Global warming; Leaf appearance; Agricultural crops; Food security. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000400008 |
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| Matear,Richard. |
| Global warming projections using a range of climate models included in the IPCC 4th assessment report (AR4) suggest the oceans will warm, the stratification of the upper ocean will increase and the ventilation of the ocean interior will change. These physical changes will impact dissolved oxygen levels in the ocean. Using a global warming projection from the CSIRO (Australian Commonwealth Scientific and Research Administration) climate model linked to a simple ocean biogeochemical model I investigated how dissolved oxygen levels in the ocean interior change under global warming. The climate simulations project the low oxygen regions like the eastern equatorial Pacific will expand. By the end of the century it is projected that the volume of hypoxic water... |
| Tipo: Journal article |
Palavras-chave: Global warming; Oxygen changes; Anoxia; Biogeochemical cycles; Climate change. |
| Ano: 2006 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382006000300010 |
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| Monge-Nájera,Julián. |
| Ecological biogeography studies the factors that define the spatial distribution of species in the present time. This review summarises recent contributions on ecological biogeography. Most recent articles report environmental factors such as temperature, humidity and salinity as key elements in the ecological biogeography of many species (followed by other organisms and genetic characteristics). Molecular data indicate that some "unexplainable" ranges are artifacts caused by taxonomic misidentification (several species erroneously classified as a single species). Island biogeography theory is often adequate for conservation management, and the new neutral model of ecological biogeography does not fit all species on which it has been tested. Global warming... |
| Tipo: Journal article |
Palavras-chave: Review; Ecological biogeography; Temperate versus tropical; Global warming. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382008000100012 |
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| Registros recuperados: 99 | |
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