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| Registros recuperados: 98 | |
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| Brunel, Thomas; Boucher, Jean. |
| This study investigates the temporal correspondence between the main patterns of recruitment variations among north-east Atlantic exploited fish populations and large-scale climate and temperature indices. It is of primary importance to know what changes in fish stock productivity can be expected in response to climate change, to design appropriate management strategies. The dominant patterns of recruitment variation were extracted using a standardized principal component analysis (PCA). The first principal component (PC) was a long-term decline, with a stepwise change occurring in 1987. A majority of Baltic Sea, North Sea, west of Scotland and Irish Sea populations, especially the gadoids, have followed this decreasing trend. On the contrary, some herring... |
| Tipo: Text |
Palavras-chave: North Atlantic; Global warming; Fishing impacts; Fish recruitment; Comparative approach; Climate change. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-2636.pdf |
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| Łącka, Magdalena; Cao, Min; Rosell-melé, Antoni; Pawłowska, Joanna; Kucharska, Małgorzata; Forwick, Matthias; Zajączkowski, Marek. |
| The increasing influence of Atlantic Water (AW) in the Barents Sea, a process known as “Atlantification”, is gradually decreasing sea ice cover in the region. Ongoing global climate warming is likely to be one of its drivers, but to further understand the role of natural variability and the biogeochemical impacts of the inflow of AW into the western Barents Sea, we reconstructed sea surface temperatures (SSTs) and primary productivity in Storfjordrenna, a climatically sensitive area south of Spitsbergen, between approximately 13,950 cal yr BP and 1300 cal yr BP. The alkenone proxy has been applied to reconstruct SSTs, and the alkenone accumulation rate in marine sediments has been used to infer changes in primary productivity. Our data show that the SST... |
| Tipo: Text |
Palavras-chave: Alkenones; Stratification; Holocene; Sea ice decrease; Global warming; North Atlantic Current; Arctic. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00585/69740/67629.pdf |
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| Yamaguchi, Ryohei; Suga, Toshio. |
| Many studies on future climate projection point out that with progressing of global warming, upper-ocean density stratification will strengthen over this century, and consequently, global-averaged ocean primary productivity will decrease. Observed long-term changes in the stratification to date, however, still show large uncertainties of the change itself and its driver. Focusing on the vertical difference in the emergence of the global warming signals, we used only observational profiles to describe the spatiotemporal characteristic of long-term trend and variability in the upper-ocean stratification (defined as the density difference between the surface and 200-m depth). Statistically significant strengthening of the stratification since the 1960s was... |
| Tipo: Text |
Palavras-chave: Global warming; Upper-ocean stratification; Long-term change; Observational profile; Climate mode; Interannual variability. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00676/78796/81044.pdf |
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| Lagarde, Adrien; Ahad-cisse, Abdoul; Gourguet, Sophie; Le Pape, Olivier; Thebaud, Olivier; Caill-milly, Nathalie; Morandeau, Gilles; Macher, Claire; Doyen, Luc. |
| This paper examines the effect of climate warming on the bio-economic performance of Bay of Biscay mixed fisheries and provides insights into the best management strategy for coping with global warming. To achieve this, a dynamic multi-species, multi-class, multi-fleets model is developed and calibrated using biological and environmental ICES and IPCC data. Fishing and economic data have been collected within the European DCF. The climate represented by the Sea Surface temperature is assumed to affect species recruitment. Three management strategies are then compared in terms of bio-economic outcomes: Status-Quo (SQ), Multi-species Maximum Sustainable Yield (MMSY), Multispecies Maximum Economic Yield (MMEY). Strategies are ranked with respect to two... |
| Tipo: Text |
Palavras-chave: Bio-économique; Scénarios; Changement climatique; Pêcheries; Soutenabilité; Golfe de Gascogne; Bio-economics; Scenarios; Global warming; Fisheries; Sustainability; Bay of Biscay. |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00637/74884/75282.pdf |
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| Aukema, B.. |
| Recent changes in the Dutch Heteroptera fauna (Insecta: Hemiptera) At present 610 species of Heteroptera are recorded from the Netherlands. The database of the Dutch bureau of the European Invertebrate Survey currently includes about 130 000 Dutch records (combinations of locality and species). The records, however, are strongly biased towards aquatic and semiaquatic species (72 761 records of 64 species = 1137 records/species) in comparison with terrestrial species (55 375 records of 545 species = 101 records/species). Although since about 1850 there have always been Dutch heteropterists, collecting efforts show large differences in time and place and it is for instance easy to locate both residences and favourite holiday resorts of heteropterists from... |
| Tipo: Article in monograph or in proceedings |
Palavras-chave: Heteroptera; Dutch fauna; Turnover; Extinctions; New arrivals; Range changes; Global warming; 42.75. |
| Ano: 2003 |
URL: http://www.repository.naturalis.nl/record/219853 |
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| Yue, Jun; Dong, Yue; Wu, Sangyun; Geng, Xiushan; Zhao, Changrong. |
| Based on a large number of actual data, the author believe that the modern global warming and sea level rise resulted from climate warming after the cold front of the Little Ice Age about 200 years ago and the developmnet of the sea level rise phase. In the past 30 years, the rate of sea level rise was increasing, which is under the background of the average temperature uplift 0.2F°(0.11 °C)every 10 years in succession from the 1980s to the past 10 years this century. On the basis of the absolute and relative sea-level rise rate that was calculated from the tidal data during the same period at home and abroad in the last 30 years, in accordance with the resolutions of the 2010 climate conference in Cancun, at the same time, considering the previous... |
| Tipo: Journal Contribution |
Palavras-chave: Global warming; Sea level variations; Prediction; Evaluation. |
| Ano: 2012 |
URL: http://hdl.handle.net/1834/5832 |
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| Ogallo, L.J.; Alusa, A.L.. |
| Anticipated global warming as a result of the emission of greenhouse gases into the atmosphere was the most important subject discussed during the fifteenth session of the Governing Council of UNEP and at the Second World Climate Conference. The so-called greenhouse effect is a most pressing environmental problem to the extent that it involves many scientific disciplines and hence presents major challenges. The greenhouse gases (CO2,' CFCs, CH4, N2O, O3, etc.) have the effect of changing the atmosphere's radiative balance by trapping more heat near the earth's surface resulting in a rise in global mean surface temperature. It is now clear that if the burning of fossil fuel continues at the present rate, global warming is a virtual certainty. |
| Tipo: Report |
Palavras-chave: Global warming; Climate change; Http://aims.fao.org/aos/agrovoc/c_35367. |
| Ano: 1992 |
URL: http://hdl.handle.net/1834/825 |
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| Wrege, Marcos Silveira; Fritzsons, Elenice; Soares, Márcia Toffani Simão; Bognola, Itamar Antônio; Sousa, Valderês Aparecida de; Sousa, Letícia Penno de; Gomes, João Bosco Vasconcellos; Aguiar, Ananda Virgínia de; Gomes, Gustavo Crizel; Matos, Maria de Fátima Silva; Scarante, Andressa Godinho; Ferrer, Rogério Soares. |
| Araucaria angustifolia (Bertol.) O. Kuntze., also known as brazilian-pine, is a forest native species from Brazil. A. angustifolia is more vulnerable to global climate change, considering it is living in cold and humid mountain regions from southern and southeastern Brazil. Among the native Brazilian forest species, it presents one of the greatest growth and genetic gain potential. It shows excellent wood quality and can still be used in human and animal food, presenting great economic, social and environmental value. In order to determine current distribution of the species and better know its habitat, we worked in the regions representing the borders of natural occurrence, identifying populations and getting trees altitude and geographycal position.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Genetic conservation; Global warming; Geographical distribution conservação genética; Melhoramento vegetal; Agrometeorologia; Biogeografia Conservação genética; Aquecimento global; Distribuição geográfica. |
| Ano: 2017 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1413 |
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| Streck,Nereu Augusto; Langner,Josana Andréia; Lago,Isabel. |
| The objective of this work was to simulate maize leaf development in climate change scenarios at Santa Maria, RS, Brazil, considering symmetric and asymmetric increases in air temperature. The model of Wang & Engel for leaf appearance rate (LAR), with genotype-specific coefficients for the maize variety BRS Missões, was used to simulate tip and expanded leaf accumulated number from emergence to flag leaf appearance and expansion, for nine emergence dates from August 15 to April 15. LAR model was run for each emergence date in 100-year climate scenarios: current climate, and +1, +2, +3, +4 and +5°C increase in mean air temperature, with symmetric and asymmetric increase in daily minimum and maximum air temperature. Maize crop failure due to frost... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Elevated temperature; Frost risk; Global warming; Leaf appearance; Vegetative development. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2010001100001 |
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| Streck,Nereu Augusto; Uhlmann,Lilian Osmari; Gabriel,Luana Fernandes. |
| The objective of this work was to test long-term trends in the duration of rice development phases in Santa Maria, RS, Brazil. The duration from emergence to V3 (EM-V3), emergence to panicle differentiation (EM-R1), emergence to anthesis (EM-R4), and emergence to all grains with brown hull (EM-R9) was calculated using leaf appearance and developmental models for four rice cultivars (IRGA 421, IRGA 417, EPAGRI 109, and EEA 406), for the period from 1912 to 2011, considering three emergence dates (early, mid, and late). The trend of the time series was tested with the non-parametric Mann-Kendall test, and the magnitude of the trend was estimated with simple linear regression. Rice development has changed over the last ten decades in this location, leading to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oryza sativa; Development rate; Global warming; Growing season; Maturity group; Modeling; Phenology. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000600001 |
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| Fagundes,Joelma Dutra; Streck,Nereu Augusto; Bisognin,Dilson Antônio; Schwantes,Ana Paula; Alberto,Cleber Maus. |
| The objective of this study was to simulate potato (Solanum tuberosum) tuber yield in different climate change scenarios of increased carbon dioxide concentration [CO2] and air temperature, considering symmetric and asymmetric increases in minimum and maximum daily air temperatures. Spitters model was used to simulate Asterix cultivar tuber yield considering two growing seasons (spring and fall) recommended for Santa Maria, state of Rio Grande do Sul, Brazil. In each growing season, five planting dates were evaluated in climate scenarios of a hundred years with no increase in [CO2] and temperature (current scenario), and in scenarios with doubling [CO2] and temperature increases of 0, 1, 2, 3, 4, 5 and 6ºC. A symmetric increase of 4ºC and an asymmetric... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum tuberosum; Global warming; Carbon dioxide concentration; Phenology; Climate risk simulation. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2010000400002 |
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| Sardá,Luana Goulart; Higarashi,Martha Mayumi; Nicoloso,Rodrigo da Silveira; Oliveira,Paulo Armando Victória de; Falkoski,Camila; Ribeiro,Stephanie Mayara Siega; Coldebella,Arlei. |
| Abstract: The objective of this work was to contribute to the establishment of a baseline for the methane emission factor for the management of swine manure, considering the current practice of raw manure storage in two open deposits in parallel, in Southern Brazil. Methane (CH4) emissions were continuously measured in three PVC tanks of 3 m3, during 180 days, in the summer. As the content of volatile solids of pig slurry ran out in approximately 130 days, the CH4 emission factor was calculated as B0= 0.48 m3kg-1VS. Although this value is higher than the B0 estimated by Intergovernmental Panel on Climate Change for Latin America (0.29 m3 kg-1 VS), it is in agreement with the B0 estimated for developed countries (0.45 and 0.48 m3 kg-1 VS, for the US and EU,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal production; Emission factor; Global warming; Greenhouse gases; Waste management. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000600657 |
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| Lago,Isabel; Streck,Nereu Augusto; Alberto,Cleber Maus; Oliveira,Felipe Brendler; Paula,Gizelli Moiano de. |
| The objective of this study was to assess the development response of cultivated rice and red rice to different increases in minimum and maximum daily air temperatures, in Santa Maria, Rio Grande do Sul State, Brazil. One hundred years climate scenarios of temperatures 0, +1, +2, +3, +4, and +5ºC, with symmetric and asymmetric increases in minimum and maximum daily air temperatures were created, using the LARS-WG Weather Generator, and a 1969-2003 database. Nine cultivated rice genotypes (IRGA 421, IRGA 416, IRGA 417, IRGA 420, BRS 7 TAIM, BR-IRGA 409, EPAGRI 109, EEA 406 and a hybrid), and two red rice biotypes (awned black hull-ABHRR, and awned yellow hull-AYHRR) were used. The dates of panicle differentiation (R1), anthesis (R4), and all grains with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oryza sativa; Global warming; Phenology; Simulation; Weeds. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2008001100001 |
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| Pizer, William A.. |
| While the rest of the world has pursued absolute emissions limits for greenhouse gases, the Bush administration has proposed an alternative policy formulation based, among other things, on reducing emissions intensity-that is, emissions per dollar of real gross domestic product. Critics of this formulation have denounced the general idea of an intensity-based emissions target, along with its voluntary nature and weak targets. This raises the question of whether intensity-based emissions limits, distinct from the other features of the Bush initiative, offer a useful alternative to absolute emissions limits. This paper makes the case that they do, based on how emissions targets are framed. The argument draws on four key observations: greenhouse gas emissions... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Carbon; Climate; Policy; Intensity; Global warming; Environmental Economics and Policy; Q54; Q58; Q56. |
| Ano: 2005 |
URL: http://purl.umn.edu/10917 |
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| Registros recuperados: 98 | |
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