Now showing items 230-249 of 666

  • Farm characteristics and farmer perceptions associated with bovine tuberculosis incidents in areas of emerging endemic spread. 

    Broughan, JM; Maye, D; Carmody, P; Brunton, LA; Ashton, A; Wint, W; Alexander, N; Naylor, R; Ward, K; Goodchild, AV; Hinchliffe, S; Eglin, RD; Upton, P; Nicholson, R; Enticott, G (Elsevier, 2016-07-01)
    While much is known about the risk factors for bovine tuberculosis (bTB) in herds located in high incidence areas, the drivers of bTB spread in areas of emerging endemicity are less well established. Epidemiological analysis ...
  • Farm diversification activities: benchmarking study 2002, report to DEFRA 

    Turner, Martin; Winter, Michael; Barr, Donald; Errington, Andrew; Fogerty, Mark; Lobley, Matt; Reed, Matt; Whitehead, Ian (Centre for Rural Policy Research, University of Exeter, 2003-02)
  • Farm diversification in England 2002 

    Turner, Martin; Winter, Michael; Barr, Donald; Errington, Andrew; Fogerty, Mark; Lobley, Matt; Reed, Matt; Whitehead, Ian (Centre for Rural Policy Research, University of Exeter, 2003-02)
  • Farmer attitudes to injurious pecking in laying hens and to potential control strategies 

    Palcynski, L; Buller, HJ; Lambton, S; Weeks, CA (Universities Federation for Animal Welfare (UFAW), 2016-02-01)
    Farmers' recognition of health and welfare problems, and their responses to related intervention programmes, such as those to reduce injurious pecking in hens, directly influence the welfare of animals in their care. ...
  • Fast demographic traits promote high diversification rates of Amazonian trees 

    Baker, Tim; Pennington, R. Toby; Magallon, Susana; Gloor, E; Laurance, William F.; Alexiades, M; Alvarez, E; Araujo, Alejandro; Arets, Eric; Aymard C., Gerardo A.; de Oliveira, Atila Alves; Amaral, I; Arroyo, L; Bonal, D; Brienen, Roel J.W.; Chave, J; Dexter, Kyle G.; Di Fiore, A; Eler, Eduardo; Feldpausch, T.R.; Ferreira, Leandro; Lopez-Gonzalez, G; van der Heijden, Geertje; Higuchi, N; Honorio, E; Huamantupa-Chuquimaco, Isau; Killeen, TJ; Laurance, Susan G.W.; Leaño, Claudio; Lewis, Simon L.; Malhi, Y; Marimon, BS; Marimon-Junior, BH; Monteagudo Mendoza, Abel; Neill, D; Peñuela-Mora, Maria Cristina; Pitman, Nigel C.A.; Prieto, A; Quesada, CA; Ramírez, Fredy; Ramírez-Angulo, H; Rudas, A; Ruschel, Ademir R.; Salomão, RP; de Andrade, Ana Segalin; Silva, J. Natalino M.; Silveira, M; Simon, MF; Spironello, Wilson; ter Steege, H; Terborgh, J; Toledo, M; Torres-Lezama, A; Vasquez, R; Vieira, Ima Célia Guimarães; Vilanova, E; Vos, VA; Phillips, OL (Wiley, 2014-05)
    The Amazon rain forest sustains the world's highest tree diversity, but it remains unclear why some clades of trees are hyperdiverse, whereas others are not. Using dated phylogenies, estimates of current species richness ...
  • Fire and climate: contrasting pressures on tropical Andean timberline species 

    Bush, MB; Alfonso-Reynolds, AM; Urrego, D.H.; Valencia, BG; Correa-Metrio, YA; Zimmermann, M; Silman, MR (Wiley, 2015-01-28)
    Aim: The aim was to test competing hypotheses regarding migration of the Andean timberline within the last 2000 years. Location: The upper forest limit in Manu National Park, Peru. Methods: A randomized stratified design ...
  • The Fire Modeling Intercomparison Project (FireMIP), phase 1: Experimental and analytical protocols with detailed model descriptions 

    Rabin, SS; Melton, JR; Lasslop, G; Bachelet, D; Forrest, M; Hantson, S; Kaplan, JO; Li, F; Mangeon, S; Ward, DS; Yue, C; Arora, VK; Hickler, T; Kloster, S; Knorr, W; Nieradzik, L; Spessa, A; Folberth, GA; Sheehan, T; Voulgarakis, A; Kelley, DI; Colin Prentice, I; Sitch, S; Harrison, S; Arneth, A (European Geosciences Union (EGU) / Copernicus Publications, 2017-03-17)
    The important role of fire in regulating vegetation community composition and contributions to emissions of greenhouse gases and aerosols make it a critical component of dynamic global vegetation models and Earth system ...
  • First evidence of widespread active methane seepage in the Southern Ocean, off the sub-Antarctic island of South Georgia 

    Römer, M; Torres, M; Kasten, S; Kuhn, G; Graham, AGC; Mau, S; Little, CTS; Linse, K; Pape, T; Geprägs, P; Fischer, D; Wintersteller, P; Marcon, Y; Rethemeyer, J; Bohrmann, G (Elsevier, 2014-07-17)
    An extensive submarine cold-seep area was discovered on the northern shelf of South Georgia during R/V Polarstern cruise ANT-XXIX/4 in spring 2013. Hydroacoustic surveys documented the presence of 133 gas bubble emissions, ...
  • A first rock glacier inventory for the Bolivian Andes 

    Rangecroft, S; Harrison, Stephan; Anderson, K; Magrath, J; Castel, AP; Pacheco, P (John Wiley and Sons Ltd, 2014-10-01)
    Rock glaciers in the arid Bolivian Andes are potentially important water sources, but little is known about their spatial distribution and characteristics. We provide the first rock glacier inventory for the region (15-22°S), ...
  • Fish as major carbonate mud producers and missing components of the tropical carbonate factory 

    Perry, Chris T.; Salter, MA; Harborne, AR; Crowley, Stephen F.; Jelks, HJ; Wilson, RW (National Academy of Sciences, 2011-09-12)
    Carbonate mud is a major constituent of recent marine carbonate sediments and of ancient limestones, which contain unique records of changes in ocean chemistry and climate shifts in the geological past. However, the origin ...
  • Fluvial sediment supply to a mega-delta reduced by shifting tropical-cyclone activity 

    Darby, SE; Hackney, CR; Leyland, J; Kummu, M; Lauri, H; Parsons, DR; Best, JL; Nicholas, AP; Aalto, R (Nature Publishing Group, 2016-10-19)
    The world's rivers deliver 19 billion tonnes of sediment to the coastal zone annually, with a considerable fraction being sequestered in large deltas, home to over 500 million people. Most (more than 70 per cent) large ...
  • FluxEngine: A flexible processing system for calculating atmosphere-ocean carbon dioxide gas fluxes and climatologies 

    Shutler, Jamie D.; Land, Peter E.; Piolle, Jean-Francois; Woolf, DK; Goddijn-Murphy, LM; Paul, F; Girard-Ardhuin, Fanny; Chapron, Bertrand; Donlon, Craig J. (American Meteorological Society, 2015-12-08)
    The air-sea flux of greenhouse gases (e.g. carbon dioxide, CO2) is a critical part of the climate system and a major factor in the biogeochemical development of the oceans. More accurate and higher resolution calculations ...
  • Focus on environmental risks and migration: Causes and consequences 

    Adger, W. Neil; Arnell, NW; Black, R; Dercon, S; Geddes, A; Thomas, DSG (Institute of Physics Publishing, 2015-06-16)
    Environmental change poses risks to societies, including disrupting social and economic systems such as migration. At the same time, migration is an effective adaptation to environmental and other risks. We review novel ...
  • Foliar trait contrasts between African forest and savanna trees: Genetic versus environmental effects 

    Schrodt, F.; Domingues, T.F.; Feldpausch, T.R.; Saiz, G.; Quesada, CA; Schwarz, M; Ishida, F.Y.; Compaore, H.; Diallo, A.; Djagbletey, G; Hien, F.; Sonké, B; Taedoumg, HE; Zapfack, L.; Hiernaux, P.; Mougin, E.; Bird, Michael I.; Grace, J.; Lewis, Simon L.; Veenendaal, E; Lloyd, J (CSIRO Publishing, 2014-11-06)
    Variations in leaf mass per unit area (Ma) and foliar concentrations of N, P, C, K, Mg and Ca were determined for 365 trees growing in 23 plots along a West African precipitation gradient ranging from 0.29 to 1.62m a-1. ...
  • followthethings.com 

    Cook et al, I (followthethings.com, 2011)
    'shopping' website - followthethings.com is an open access research output designed to resemble an online store. It is the result of a collaborative online scholar-activist project whose principal investigator, designer ...
  • Forecasting the underlying potential governing the time series of a dynamical system 

    Livina, VN; Lohmann, G; Mudelsee, M; Lenton, Timothy M. (Elsevier, 2013-09-15)
    We introduce a technique of time series analysis, potential forecasting, which is based on dynamical propagation of the probability density of time series. We employ polynomial coefficients of the orthogonal approximation ...
  • The formation of charcoal reflectance and its potential use in post-fire assessments 

    Belcher, CM; Hudspith, VA (CSIRO Publishing for International Association of Wildland Fire, 2016-01-01)
    Charcoal has an exceptional ability to reflect light when viewed using reflectance microscopy. The amount of light reflected is variable depending on the differential ordering of graphite-like phases within the charcoal ...
  • Fractal properties of forest fires in Amazonia as a basis for modelling pan-tropical burnt area 

    Fletcher, Imogen; Aragão, Luiz; Lima, André; Shimabukuro, Yosio; Friedlingstein, P (European Geosciences Union (EGU), 2014-03-19)
    Current methods for modelling burnt area in dynamic global vegetation models (DGVMs) involve complex fire spread calculations, which rely on many inputs, including fuel characteristics, wind speed and countless parameters. ...
  • A framework for estimating forest disturbance intensity from successive remotely sensed biomass maps: moving beyond average biomass loss estimates 

    Hill, TC; Ryan, CM; Williams, M (Springer, 2015-12-02)
    Background The success of satellites in mapping deforestation has been invaluable for improving our understanding of the impacts and nature of land cover change and carbon balance. However, current satellite approaches ...