Now showing items 1-20 of 910

  • 3-D Cinema: Immersive Media Technology 

    Jackman, Anna H. (Springer Link, 2015-06-06)
    3-D cinema is a largely overlooked media within geographical critique. This omission is notable given both the sustained academic consideration afforded to other popular media, the medium’s significant commercial and popular ...
  • A 350-million-year legacy of fire adaptation among conifers 

    He, T; Belcher, CM; Lamont, BB; Lim, SL (Wiley, 2015-12-29)
    Current phylogenetic evidence shows that fire began shaping the evolution of land plants 125 Ma, although the fossil charcoal record indicates that fire has a much longer history (>350 Ma). Serotiny (on-plant seed storage) ...
  • The 5.2 ka climate event: Evidence from stable isotope and multi-proxy palaeoecological peatland records in Ireland 

    Roland, TP; Daley, TJ; Caseldine, CJ; Charman, DJ; Turney, CSM; Amesbury, MJ; Thompson, GJ; Woodley, EJ (Elsevier, 2015-08-06)
    Evidence for a major climate event at 5.2 ka has been reported globally and is associated with considerable societal disruption, but is poorly characterised in northwest Europe. This event forms part of a broader period ...
  • A 700-year paleoecological record of boreal ecosystem responses to climatic variation from Alaska 

    Tinner, W; Bigler, C; Gedye, S; Gregory-Eaves, I; Jones, RT; Kaltenrieder, P; Krähenbühl, U; Hu, Feng Sheng (Ecological Society of America, 2008-03)
    Recent observations and model simulations have highlighted the sensitivity of the forest–tundra ecotone to climatic forcing. In contrast, paleoecological studies have not provided evidence of tree-line fluctuations in ...
  • Above- and below-ground net primary productivity across ten Amazonian forests on contrasting soils 

    Malhi, Y; Metcalfe, DB; Silva-Espejo, JE; Jiménez, E; Navarrete, D; Almeida, S; Costa, ACL; Salinas, N; Phillips, OL; Anderson, LO; Alvarez, E; Baker, Tim; Goncalvez, PH; Huamán-Ovalle, J; Mamani-Solórzano, M; Meir, P; Monteagudo Mendoza, Abel; Patĩo, S; Peñuela-Mora, Maria Cristina; Prieto, A; Quesada, CA; Rozas-Dávila, A; Rudas, A; Silva Jr, JA; Vásquez, R; Aragao, Luiz (European Geosciences Union (EGU), 2009)
    The net primary productivity (NPP) of tropical forests is one of the most important and least quantified components of the global carbon cycle. Most relevant studies have focused particularly on the quantification of the ...
  • Above-ground biomass and structure of 260 African tropical forests 

    Lewis, Simon L.; Sonké, B; Sunderland, T; Begne, SK; Lopez-Gonzalez, G; van der Heijden, Geertje; Phillips, OL; Affum-Baffoe, K; Baker, Tim; Banin, L; Bastin, J-F; Beeckman, H; Boeckx, P; Bogaert, J; De Cannière, C; Chezeaux, E; Clark, CJ; Collins, Murray; Djagbletey, G; Djuikouo, MNK; Droissart, V; Doucet, J-L; Ewango, CEN; Fauset, S; Feldpausch, T.R.; Foli, EG; Gillet, J-F; Hamilton, Alan C.; Harris, DJ; Hart, TB; de Haulleville, T; Hladik, A; Hufkens, K; Huygens, D; Jeanmart, P; Jeffery, KJ; Kearsley, E; Leal, ME; Lloyd, J; Lovett, JC; Makana, J-R; Malhi, Y; Marshall, AR; Ojo, L; Peh, KS-H; Pickavance, Georgia C.; Poulsen, JR; Reitsma, JM; Sheil, D; Simo, M; Steppe, K; Taedoumg, HE; Talbot, J; Taplin, JRD; Taylor, D; Thomas, SC; Toirambe, B; Verbeeck, H; Vleminckx, J; White, LJT; Willcock, S; Woell, H; Zemagho, L (The Royal Society, 2013-07)
    We report above-ground biomass (AGB), basal area, stem density and wood mass density estimates from 260 sample plots (mean size: 1.2 ha) in intact closed-canopy tropical forests across 12 African countries. Mean AGB is ...
  • Abrupt Climate Change in an Oscillating World. 

    Bathiany, S; Scheffer, M; van Nes, EH; Williamson, MS; Lenton, TM (Nature Publishing Group, 2018-03-22)
    The notion that small changes can have large consequences in the climate or ecosystems has become popular as the concept of tipping points. Typically, tipping points are thought to arise from a loss of stability of an ...
  • Absorbing Roots Areas and Transpiring Leaf Areas at the Tropical Forest and Savanna Boundary in Brazil 

    Butler, Andre; Marimon-Junior, BH; Maracahipes, Leandro; Marimon, BS; Silvério, DV; Oliveira, EA; Lenza, E; Feldpausch, T.R.; Meir, P; J., G (Nova Science Publishers, Inc., 2013)
    savannas
  • The Acceleration of Urban Sustainability Transitions: a Comparison of Brighton, Budapest, Dresden, Genk, and Stockholm 

    Ehnert, F; Frantzeskaki, N; Barnes, JPJ; Borgström, S; Gorissen, L; Kern, F; Strenchock, L; Egerman, M (Mary Ann Liebert, 2018-02-27)
    City-regions as sites of sustainability transitions have remained under-explored so far. With our comparative analysis of five diverse European city-regions, we offer new insights on contemporary sustainability transitions ...
  • Accuracy and consistency of grass pollen identification by human analysts using electron micrographs of surface ornamentation 

    Mander, L; Baker, SJ; Belcher, CM; Haselhorst, DS; Rodriguez, J; Thorn, JL; Tiwari, S; Urrego, DH; Wesseln, CJ; Punyasena, SW (Botanical Society of America, 2014-08)
    PREMISE OF THE STUDY: Humans frequently identify pollen grains at a taxonomic rank above species. Grass pollen is a classic case of this situation, which has led to the development of computational methods for identifying ...
  • The ACER pollen and charcoal database: A global resource to document vegetation and fire response to abrupt climate changes during the last glacial period 

    Goñi, MFS; Desprat, S; Daniau, AL; Bassinot, FC; Polanco-Martínez, JM; Harrison, SP; Allen, JRM; Scott Anderson, R; Behling, H; Bonnefille, R; Burjachs, F; Carrión, JS; Cheddadi, R; Clark, JS; Combourieu-Nebout, N; Mustaphi, CJC; Debusk, GH; Dupont, LM; Finch, JM; Fletcher, WJ; Giardini, M; González, C; Gosling, WD; Grigg, LD; Grimm, EC; Hayashi, R; Helmens, K; Heusser, LE; Hill, T; Hope, G; Huntley, B; Igarashi, Y; Irino, T; Jacobs, B; Jiménez-Moreno, G; Kawai, S; Peter Kershaw, A; Kumon, F; Lawson, IT; Ledru, MP; Lézine, AM; Mei Liew, P; Magri, D; Marchant, R; Margari, V; Mayle, FE; Merna Mckenzie, G; Moss, P; Müller, S; Müller, UC; Naughton, F; Newnham, RM; Oba, T; Pérez-Obiol, R; Pini, R; Ravazzi, C; Roucoux, KH; Rucina, SM; Scott, L; Takahara, H; Tzedakis, PC; Urrego, DH; Van Geel, B; Guido Valencia, B; Vandergoes, MJ; Vincens, A; Whitlock, CL; Willard, DA; Yamamoto, M (Copernicus Publications, 2017-09-11)
    Quaternary records provide an opportunity to examine the nature of the vegetation and fire responses to rapid past climate changes comparable in velocity and magnitude to those expected in the 21st-century. The best ...
  • Advances in risk assessment for climate change adaptation policy 

    Adger, WN; Brown, I; Surminski, S (Royal Society, 2018-04-30)
    Climate change risk assessment involves formal analysis of the consequences, likelihoods and responses to the impacts of climate change and the options for addressing these under societal constraints. Conventional approaches ...
  • Aeolian sediment reconstructions from the Scottish Outer Hebrides: Late Holocene storminess and the role of the North Atlantic Oscillation 

    Orme, Lisa Claire; Reinhardt, Liam; Jones, Richard T.; Charman, Dan J.; Croudace, Ian; Dawson, Alastair; Ellis, Michael; Barkwith, Andrew (Elsevier, 2016-01)
    Northern Europe can be strongly influenced by winter storms driven by the North Atlantic Oscillation (NAO), with a positive NAO index associated with greater storminess in northern Europe. However, palaeoclimate reconstructions ...
  • Aerial photography collected with a multirotor drone reveals impact of Eurasian beaver reintroduction on ecosystem structure 

    Puttock, A; Cunliffe, AM; Anderson, K; Brazier, Richard E. (NRC Research Press, 2015-04-29)
    Beavers are often described as ecological engineers with an ability to modify the structure and flow of fluvial systems and create complex wetland environments with dams, ponds and canals. Consequently, beaver activity has ...
  • After the Anthropocene: Politics and geographic inquiry for a new epoch 

    Johnson, ER; Morehouse, H; Dalby, S; Lehman, J; Nelson, S; Rowan, R; Wakefield, S; Yusoff, K (SAGE Publications Ltd, 2014-02-07)
    Crutzen and Stoermer's (2000) naming of the 'Anthropocene' has provoked lively debate across the physical and social sciences, but, while the term is gradually gaining acceptance as the signifier of the current geological ...
  • The age of CO2 released from soils in contrasting ecosystems during the arctic winter 

    Hartley, IP; Garnett, Mark H.; Sommerkorn, M; Hopkins, DW; Wookey, PA (Elsevier, 2013)
    In arctic ecosystems, winter soil respiration can contribute substantially to annual CO2 release, yet the source of this C is not clear. We analysed the 14C content of C released from plant-free plots in mountain birch ...
  • Agricultural change and farm incomes in Devon: an update 

    Robbins, Keith; Butler, Allan; Turner, Martin; Lobley, Matt (Centre for Rural Policy Research, University of Exeter, 2006-06)
  • Agricultural restructuring: the potential role of joint venture arrangements 

    Turner, Martin; Hambly, John (Centre for Rural Policy Research, University of Exeter, 2005-01)
  • An alternative approach to transfer functions? Testing the performance of a functional trait-based model for testate amoebae 

    van Bellen, S; Mauquoy, D; Payne, RJ; Roland, TP; Hughes, PDM; Daley, TJ; Loader, NJ; Street-Perrotte, FA; Rice, EM; Pancotto, VA (Elsevier, 2016-12-12)
    Transfer functions are now widely available to infer past environmental conditions from biotic assemblages. Existing transfer functions are based on species assemblages but an alternative is to characterize assemblages ...
  • Amazon Basin forest pyrogenic carbon stocks: First estimate of deep storage 

    Koele, N; Bird, M; Haig, J; Marimon-Junior, BH; Marimon, BS; Phillips, OL; de Oliveira, EA; Quesada, CA; Feldpausch, TR (Elsevier, 2017-11-15)
    Amazon Basin forest soils contain considerable soil organic carbon stocks; however, the contribution of soil pyrogenic carbon (PyC) to the total is unknown. PyC is derived from local fires (historical and modern) and ...