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REFERENCES

  • Acosta-Solís, M. (1984) Los páramos Andinos del Ecuador. Publicaciones Científicas MAS, Quito.
  • Agrawala, S., Moehner, A., Hemp, A., van Aalst, M., Hitz, S., Smith, J., Meena, H., Mwakifwamba, S.M., Hyera, T. & Mwaipopo, O.U. (2003) Development and climate change in Tanzania: focus on Mount Kilimanjaro. Technical Report. Organisation for Economic Co-operation and Development, Paris.
  • Arnell, N.W. (1999) Climate change and global water resources. Global Environmental Change, 9, 3149.
  • Basalirwa, C., Odiyo, J., Mngodo, R. & Mpeta, E. (1999) The climatological regions of Tanzania based on the rainfall characteristics. International Journal of Climatology, 19, 6980.
  • Beck, E., Rehder, H., Pongratz, R., Scheibe, R. & Senser, M. (1981) Ecological analysis of the boundary between the Afroalpine vegetation types ‘Dendrosenecio woodlands’ and ‘Senecio brassicaLobelia keniensis community’ on Mt Kenya. Journal of the East Africa Natural History Society and National Museum, 172, 111.
  • Bendix, J. (2000) Precipitation dynamics in Ecuador and northern Peru during the 1991/92 El Niño: a remote sensing perspective. International Journal of Remote Sensing, 21, 533548.
  • Beven, K. (2006) A manifesto for the equifinality thesis. Journal of Hydrology, 320, 1836.
  • Boulanger, J.-P., Martinez, F. & Segura, E.C. (2007) Projection of future climate change conditions using IPCC simulations, neural networks and Bayesian statistics. Part 2: precipitation mean state and seasonal cycle in South America. Climate Dynamics, 28, 255271.
  • Bradley, R.S., Vuille, M., Diaz, H.F. & Vergara, W. (2006) Threats to water supplies in the tropical Andes. Science, 312, 17551756.
  • Bragg, O.M. (2002) Hydrology of peat-forming wetlands in Scotland. Science of the Total Environment, 294, 111129.
  • Broennimann, O., Thuiller, W., Hughes, G., Midgley, G.F., Alkemalde, J.M.R. & Guisan, A. (2006) Do geographic distribution, niche property and life form explain plants' vulnerability to global change? Global Change Biology, 12, 10791093.
  • Buytaert, W., De Bièvre, B., Wyseure, G. & Deckers, J. (2004) The use of the linear reservoir concept to quantify the impact of land use changes on the hydrology of catchments in the Ecuadorian Andes. Hydrology and Earth System Sciences, 8, 108114.
  • Buytaert, W., Celleri, R., De Bièvre, B., Hofstede, R., Cisneros, F., Wyseure, G. & Deckers, J. (2006a) Human impact on the hydrology of the Andean páramos. Earth Science Reviews, 79, 5372.
  • Buytaert, W., Deckers, J. & Wyseure, G. (2006b) Description and classification of highly weathered andosols in the south Ecuadorian paramo. Geomorphology, 73, 207221.
  • Buytaert, W., Iñiguez, V. & De Bièvre, B. (2007) The effects of afforestation and cultivation on water yield in the Andean páramo. Forest Ecology and Management, 251, 2230.
  • Buytaert, W., Celleri, R. & Timbe, L. (2009) Predicting climate change impacts on water resources in the tropical Andes: the effects of GCM uncertainty. Geophysical Research Letters, 36, L07406.
  • Castaño, C. (2002) Páramos y ecosistemas alto andinos de Colombia en condición hotspot y global climatic tensor. IDEAM, Bogotá.
  • Celleri, R., Willems, P., Buytaert, W. & Feyen, J. (2007) Space-time variability of rainfall in the Paute basin, Ecuadorian Andes. Hydrological Processes, 21, 33163327.
  • Clapperton, C.M. (1993) Nature of environmental changes in South America at the last glacial maximum. Palaeogeography, Palaeoclimatology, Palaeoecology, 101, 189208.
  • Cleef, A.M. (1978) Characteristics of neotropical páramo vegetations and its subantarctic relations. Erdwissenschaftliche Forschung, 11, 365390.
  • Cleef, A.M. (1981) The vegetation of the páramos of the Colombian Cordillera Oriental. Dissertationes Botanicae 61. J. Cramer, Vaduz.
  • Cleef, A.M., Rangel-Churio, O., van der Hammen, T. & Jaramillo, R. (1984) La vegetación del páramo nordeste de la Sierra Nevada de Santa Marta. La Sierra Nevada de Santa Marta (Colombia) transecto buritaca la cumbre. Estudios de Ecosistemas Tropandinos 2 (ed. by H.Balslev and J.Luteyn), pp. 203266. J. Cramer, Berlin.
  • Conway, D. (2000) The climate and hydrology of the Upper Blue Nile river, Ethiopia. The Geographical Journal, 166, 4962.
  • Cullen, N.J., Mölg, T., Kaser, G., Hussein, K., Steffen, K. & Hardy, D.R. (2006) Kilimanjaro glaciers: recent areal extent from satellite data and new interpretation of observed 20th century retreat rates. Geophysical Research Letters, 33, L16502.
  • Davidson, E.A. & Janssens, I.A. (2006) Temperature sensitivity of soil carbon decomposition and feedbacks to climate change. Nature, 440, 165173.
  • Dercon, G., Bossuyt, B., De Bièvre, B., Cisneros, F. & Deckers, J. (1998) Zonificación agroecológica del Austro Ecuatoriano. Universidad de Cuenca, Cuenca, Ecuador.
  • Dercon, G., Govers, G., Poesen, J., Sánchez, H., Rombaut, K., Vandenbroeck, E., Loaiza, G. & Deckers, J. (2007) Animal-powered tillage erosion assessment in the southern Andes region of Ecuador. Geomorphology, 87, 415.
  • FAO/ISRIC/ISSS (1998) World reference base for soil resources. World Soil Resources Reports 84. FAO, Rome.
  • Farley, K.A., Kelly, E.F. & Hofstede, R.G.M. (2004) Soil organic carbon and water retention after conversion of grasslands to pine plantations in the Ecuadorian Andes. Ecosystems, 7, 729739.
  • Fjeldså, J. (1992) Biogeography of the birds of the Polylepis woodlands of the Andes. Páramo: an Andean ecosystem under human influence (ed. by H.Balslev and J.Luteyn), pp. 3144. Academic Press, London.
  • Foden, W., Mace, G., Vié, J.-C., Angulo, A., Butchart, S., DeVantier, L., Dublin, H., Gutsche, A., Stuart, S. & Turak, E. (2008) Species susceptibility to climate change impacts. The 2008 review of the IUCN Red List of threatened species (ed. by J.-C.Vié, C.Hilton-Taylor and S.N.Stuart), pp. 7788. IUCN, Gland, Switzerland.
  • Fowler, H.J., Blenkinsop, S. & Tebaldi, C. (2007) Linking climate change modelling to impacts studies: recent advances in downscaling techniques for hydrological modelling. International Journal of Climatology, 27, 15471578.
  • Frankfurt Zoological Society (2007) Bale Mountains National Park general management plan 2007–2017. Frankfurt Zoological Society, Frankfurt.
  • Frolking, S. & Roulet, N.T. (2007) Holocene radiative forcing impact of northern peatland carbon accumulation and methane emissions. Global Change Biology, 13, 10791088.
  • Fyfe, J.C. & Flato, G.M. (1999) Enhanced climate change and its detection over the Rocky Mountains. Journal of Climate, 12, 230243.
  • Giorgi, F. & Bi, X. (2005) Updated regional precipitation and temperature changes for the 21st century from ensembles of recent AOGCM simulations. Geophysical Research Letters, 32, L21715.
  • Gorham, E. (1991) Northern peatlands: role in the carbon cycle and probable response to climatic warming. Ecological Applications, 1, 182195.
  • Grabherr, G., Gottfried, M. & Pauli, H. (1994) Climate effects on mountain plants. Nature, 369, 448.
  • van der Hammen, T. & Hooghiemstra, H. (2000) Neogene and Quaternary history of vegetation, climate, and plant diversity in Amazonia. Quaternary Science Reviews, 19, 725742.
  • Hansen, B., Rodbell, D., Seltzer, G., León, B., Young, K. & Abbott, M. (2003) Late Glacial and Holocene vegetational history from two sites in the Western Cordillera of southwestern Ecuador. Palaeogeography, Palaeoclimatology, Palaeoecology, 194, 79108.
  • Harrison, P.A., Berry, P.M., Butt, N. & New, M. (2006) Modelling climate change impacts on species' distributions at the European scale: implications for conservation policy. Environmental Science and Policy, 9, 116128.
  • Hart, J.K. & Martinez, K. (2006) Environmental sensor networks: a revolution in the earth system science? Earth Science Reviews, 78, 177191.
  • Hastenrath, S. (2009) Past glaciation in the tropics. Quaternary Science Reviews, 28, 790798.
  • Hedberg, O. (1964) Features of Afroalpine plant ecology. Acta Phyto-geographica Suecica, 49, 1144.
  • Hedberg, O. (1992) Afroalpine vegetation compared to páramo: convergent adaptations and divergent differentiation. Páramo: an Andean ecosystem under human influence (ed. by H.Balslev and J.L.Luteyn), pp. 1530. Academic Press, London.
  • Hemp, A. (2002) Ecology of the pteridophytes on the southern slopes of Mt. Kilimanjaro – I. Altitudinal distribution. Plant Ecology, 159, 211239.
  • Hniatuk, R.J., Smith, J.M.B. & McVean, D.N. (1976) The climate of Mount Wilhelm. Mount Wilhelm Studies 2, ANU B/G 4, Canberra.
  • Hnatiuk, R.J. (1994) Plant form and function in Papua New Guinea. Tropical alpine environments: plant form and function (ed. by P.W.Rundel, A.P.Smith and F.C.Meinzer), pp. 307318. Cambridge University Press, Cambridge.
  • Hofstede, R.G.M. (1995) Effects of burning and grazing on a Colombian páramo ecosystem. Ph.D. thesis, Universiteit van Amsterdam.
  • Hofstede, R.G.M., Mondragon, M.X. & Rocha, C.M. (1995) Biomass of grazed, burned, and undistributed páramo grasslands, Colombia. 1. Aboveground vegetation. Arctic and Alpine Research, 27, 112.
  • Hofstede, R., Segarra, P. & Mena, P.V. (2003) Los páramos del Mundo. Global Peatland Initiative/NC-IUCN/EcoCiencia, Quito.
  • Holt, R.D. (1990) The microevolutionary consequences of climate change. Trends in Ecology and Evolution, 5, 311315.
  • Hope, G.S. (1976) The vegetational history of Mt Wilhelm, Papua New Guinea. Journal of Ecology, 64, 627663.
  • Hope, G., Hnatiuk, R. & Smith, J. (2003) Asia y Oceanía. Los páramos del Mundo (ed. by R.Hofstede, P.Segarra and P.V.Mena), pp. 245253. Global Peatland Initiative/NC-IUCN/EcoCiencia, Quito.
  • van Huissteden, J. (2004) Methane emission from northern wetlands in Europe during Oxygen Isotope Stage 3. Quaternary Science Reviews, 23, 19892005.
  • Huntington, T.G. (2006) Evidence for intensification of the global water cycle: review and synthesis. Journal of Hydrology, 319, 8395.
  • IPCC (2007) Climate change 2007 – impacts, adaptation and vulnerability. Cambridge University Press, Cambridge.
  • Jansky, L., Ives, J.D., Furuyashiki, K. & Watanabe, T. (2002) Global mountain research for sustainable development. Global Environmental Change, 12, 231239.
  • Jomelli, V., Favier, V., Rabatel, A., Brunstein, D., Hoffmann, G. & Francou, B. (2009) Fluctuations of glaciers in the tropical Andes over the last millennium and palaeoclimatic implications: a review. Palaeogeography, Palaeoclimatology, Palaeoecology, 281, 269282.
  • Josse, C., Cuesta, F., Navarro, G., Barrena, V., Cabrera, E., Chacón-Moreno, E., Ferreira, W., Peralvo, M., Saito, J. & Tovar, A. (2009) Mapa de ecosistemas de los Andes del norte y centrales. Bolivia, Colombia, Ecuador, Perú y Venezuela. Programa Regional ECOBONA-Intercooperation, CONDESAN-Proyecto páramo Andino, Programa BioAndes, EcoCiencia, NatureServe, IAvH, LTA-UNALM, ICAE-ULA, CDC-UNALM, RUMBOL SRL, Lima.
  • Kappelle, M., Horn, S.P. & Chaverri, A. (2005) Páramos de Costa Rica. INBio, Santo Domingo de Herredia.
  • Kaser, G. (1999) A review of the modern fluctuations of tropical glaciers. Global and Planetary Change, 22, 93103.
  • Kaser, G., Hardy, D.R., Mölg, T., Bradley, R.S. & Hyera, T.M. (2004) Modern glacier retreat on Kilimanjaro as evidence of climate change: observations and facts. International Journal of Climatology, 24, 329339.
  • Körner, C. & Paulsen, J. (2004) A world-wide study of high altitude treeline temperatures. Journal of Biogeography, 31, 713732.
  • Laegaard, S. (1992) Influence of fire in the grass páramo vegetation of Ecuador. Páramo: an Andean ecosystem under human influence (ed. by H.Balslev and J.L.Luteyn), pp. 151170. Academic Press, London.
  • Liu, B.M., Collick, A.S., Zeleke, G., Adgo, E., Easton, Z.M. & Steenhuis, T.S. (2008) Rainfall-discharge relationships for a monsoonal climate in the Ethiopian highlands. Hydrological Processes, 22, 10591067.
  • Luteyn, J.L. (1999) Páramos: a checklist of plant diversity, geographical distribution, and botanical literature. The New York Botanical Garden Press, New York.
  • Luteyn, J.L., Cleef, A.M. & Rangel, O. (1992) Plant diversity in páramo: towards a checklist of páramoplants and generic flora. Páramo: an Andean ecosystem under human influence (ed. by H.Balslev and J.L.Luteyn), pp. 7184. Academic Press, London.
  • Lynch, M. & Lande, R. (1993) Evolution and extinction in response to environmental change. Biotic interactions and global change (ed. by P.M.Kareiva and J.Kingsolver), pp. 234250. Sinauer Associates Inc., Sunderland, MA.
  • Malhi, Y. & Wright, J. (2004) Spatial patterns and recent trends in the climate of tropical forest regions. Philosophical Transactions of the Royal Society B: Biological Sciences, 359, 311329.
  • Mangen, J.-M. (1993) Ecology and vegetation of Mt. Trikora New Guinea (Irian Jaya/Indonesia). Ministère des Affaires Culturelles, Luxembourg.
  • Marchant, R., Behling, H., Berrio, J.-C., Cleef, A., Duivenvoorden, J., Hooghiemstra, H., Kuhry, P., Melief, B., Schreve-Brinkman, E., Van Geel, B., Van der Hammen, T., Van Reenen, G. & Wille, M. (2002) Pollen-based biome reconstructions for Colombia at 3000, 6000, 9000, 12000, 15000 and 18000 14c yr ago: late Quaternary tropical vegetation dynamics. Journal of Quaternary Science, 17, 113129.
  • Messerli, B., Viviroli, D. & Weingartner, R. (2004) Mountains of the world: vulnerable water towers for the 21st century. Ambio, 13, 2934.
  • Miehe, G. & Miehe, S. (1993) On the physiognomic and floristic differentiation of ericaceous vegetation in the Bale Mountains, SE Ethiopia. Opera Botanica, 121, 85112.
  • Myers, N., Mittermeier, R.A., Mittermeier, C.G., Fonseca, G.A.B. & Kent, J. (2000) Biodiversity hotspots for conservation priorities. Nature, 403, 853858.
  • Nepstad, D., Lefebvre, P., Lopes da Silva, U., Tomasella, J., Schlesinger, P., Solórzano, L., Mouthino, P., Ray, D. & Guererira Benito, J. (2004) Amazon drought and its implications for forest flammability and tree growth: a basin-wide analysis. Global Change Biology, 10, 704717.
  • Parmesan, C. & Yohe, G. (2003) A globally coherent fingerprint of climate change impacts across natural systems. Nature, 421, 3742.
  • Pauli, H., Gottfried, M., Reiter, K., Klettner, C. & Grabherr, G. (2007) Signals of range expansions and contractions of vascular plants in the high Alps: observations (1994–2004) at the GLORIA master site Schrankogel, Tyrol, Austria. Global Change Biology, 13, 147156.
  • Peñuelas, J. & Boada, M. (2003) A global change-induced biome shift in the Montseny Mountains (NE Spain). Global Change Biology, 9, 131140.
  • Peterson, A.T., Sánchez-Cordero, V., Soberón, J., Bartley, J., Buddemeier, R.W. & Navarro-Siguenza, A.G. (2001) Effects of global climate change on geographic distributions of Mexican Cracidae. Ecological Modelling, 144, 2130.
  • Podwojewski, P., Poulenard, J., Zambrana, T. & Hofstede, R. (2002) Overgrazing effects on vegetation cover and properties of volcanic ash soil in the páramo of Llangahua and La Esperanza (Tungurahua, Ecuador). Soil Use and Management, 18, 4555.
  • Poulenard, J., Podwojewski, P., Janeau, J.L. & Collinet, J. (2001) Runoff and soil erosion under rainfall simulation of andisols from the Ecuadorian páramo: effect of tillage and burning. Catena, 45, 185207.
  • Poulenard, J., Podwojewski, P. & Herbillon, A.J. (2003) Characteristics of non-allophanic andisols with hydric properties from the Ecuadorian páramos. Geoderma, 117, 267281.
  • Prentice, M.L., Hope, G.S., Maryunani, K. & Peterson, J.A. (2005) An evaluation of snowline data across New Guinea during the last major glaciation, and area-based glacier snowlines in the Mt. Jaya region of Papua, Indonesia, during the Last Glacial Maximum. Quaternary International, 138–139, 93117.
  • Ramsay, P.M. (1992) The páramo vegetation of Ecuador: the community ecology dynamics and productivity of tropical grasslands in the Andes. PhD thesis, University of Wales, Bangor.
  • Ramsay, P.M. (2001) The ecology of Volcán Chiles: high-altitude ecosystems on the Ecuador–Colombia border. Páramo vegetation recovery in the first two years after a fire on Volcán Chiles, Ecuador (ed. by P.M.Ramsay), pp. 2738. Pebble and Shell, Plymouth.
  • Rehfeldt, G.E., Ying, C.C., Spittlehouse, D.L. & Hamilton, D.A. (1999) Genetic responses to climate in Pinus contorta: niche breadth, climate change, and reforestation. Ecological Monographs, 69, 375407.
  • Rodbell, D.T., Bagnato, S., Nebolini, J.C., Seltzer, G.O. & Abbott, M.B. (2002) A Late Glacial–Holocene tephrochronology for glacial lakes in southern Ecuador. Quaternary Research, 57, 343354.
  • Røhr, P.C. & Killingtveit, Å. (2003) Rainfall distribution on the slopes of Mt Kilimanjaro. Hydrological Sciences Journal, 48, 6577.
  • Rundel, P.W. (1994) Tropical alpine climates. Tropical alpine environments (ed. by P.W.Rundel, A.P.Smith and F.C.Meinzer), pp. 2144. Cambridge University Press, Cambridge.
  • Salathé, E.P., Jr (2003) Comparison of various precipitation downscaling methods for the simulation of streamflow in a rainshadow river basin. International Journal of Climatology, 23, 887901.
  • Sanz-Elorza, M., Dana, E.D., González, A. & Sobrino, E. (2003) Changes in the high-mountain vegetation of the central Iberian Peninsula as a probable sign of global warming. Annals of Botany, 92, 273280.
  • Shoji, S., Nanzyo, M. & Dahlgren, R. (1993) Volcanic ash soils: genesis, properties and utilisation. Developments in Soil Science No. 21. Elsevier, Amsterdam.
  • Sklenář, P. (2000) Vegetation ecology and phytogeography of Ecuadorian superpáramos. PhD thesis. Charles University, Prague.
  • Sklenář, P. & Balslev, H. (2005) Superparamo plant species diversity and phytogeography in Ecuador. Flora, 200, 416433.
  • Sklenář, P. & Ramsay, P.M. (2001) Diversity of zonal páramo plant communities in Ecuador. Diversity and Distributions, 7, 113124.
  • Sklenář, P., Bendix, J. & Balslev, H. (2008) Cloud frequency correlates to plant species composition in the high Andes of Ecuador. Basic and Applied Ecology, 9, 505- 513.
  • Smith, A.P. (1994) Introduction to tropical alpine vegetation. Tropical alpine environments: plant form and function (ed. by P.W.Rundel, A.P.Smith and F.C.Meinzer), pp. 119. Cambridge University Press, Cambridge.
  • Smith, A.P. & Young, T.P. (1987) Tropical alpine plant ecology. Annual Review of Ecology, Evolution, and Systematics, 18, 137158.
  • Still, C.J., Foster, P.N. & Schneider, S.H. (1999) Simulating the effects of climate change on tropical montane cloud forests. Nature, 398, 608610.
  • Thompson, L.G., Mosley-Thompson, E. & Henderson, K.A. (2000) Ice-core palaeoclimate records in tropical South America since the Last Glacial Maximum. Journal of Quaternary Science, 15, 377394.
  • Thompson, L.G., Mosley-Thompson, E., Davis, M.E., Henderson, K.A., Brecher, H.H., Zagorodnov, V.S., Mashiotta, T.A., Lin, P.-N., Mikhalenko, V.N., Hardy, D.R. & Beer, J. (2002) Kilimanjaro ice core records: evidence of Holocene climate change in tropical Africa. Science, 298, 589593.
  • Thouret, J.C., Van der Hammen, T., Salomons, B. & Juvigné, E. (1996) Paleoenvironmental changes and glacial stades of the last 50,000 years in the Cordillera Central, Colombia. Quaternary Research, 46, 118.
  • Thuiller, W., Lavorel, S., Araújo, M.B., Sykes, M.T. & Prentice, I.C. (2005) Climate change threats to plant diversity in Europe. Proceedings of the National Academy of Sciences USA, 102, 82458250.
  • Timbe, E. (2004) Disgregación temporal de datos diarios de precipitación en microcuencas de páramo. Master's thesis. Universidad de Cuenca, Cuenca, Ecuador.
  • Topp, G.C. & Davis, J.L. (1985) Measurement of soil-water content using time-domain reflectometry (TDR) – a field evaluation. Soil Science Society of America Journal, 49, 1924.
  • Urrutia, R. & Vuille, M. (2009) Climate change projections for the tropical Andes using a regional climate model: temperature and precipitation simulations for the end of the 21st century. Journal of Geophysical Research, 114, D02108.
  • Vanacker, V., Govers, G., Poesen, J., Deckers, J., Dercon, G. & Loaiza, G. (2003) The impact of environmental change on the intensity and spatial pattern of water erosion in a semi-arid mountainous Andean environment. Catena, 51, 329347.
  • Van Royen, P. (1980) The alpine flora of New Guinea. J. Cramer, Vaduz.
  • Villacis, M. (2008) Ressources en eau glaciaire dans les Andes d'Equateur en relation avec les variations du climat: le cas du volcan Antisana. PhD Thesis. Université Montpellier II, Montpellier, France.
  • Viviroli, D., Dürr, H.H., Messerli, B., Meybeck, M. & Weingartner, R. (2007) Mountains of the world, water towers for humanity: typology, mapping, and global significance. Water Resources Research, 43, W07447.
  • Vuille, M., Francou, B., Wagnon, P., Juen, I., Kaser, G., Mark, B.G. & Bradley, R.S. (2008) Climate change and tropical Andean glaciers: past, present and future. Earth Science Reviews, 89, 7996.
  • Vuilleumier, F. & Monasterio, M. (1986) High altitude tropical biogeography. Oxford University Press, Oxford.
  • Walther, G.R. (2003) Plants in a warmer world. Perspectives in Plant Ecology, Evolution and Systematics, 6, 169185.
  • Wania, R. (2007) Modelling northern peatland land surface processes, vegetation dynamics and methane emissions. PhD thesis. University of Bristol, UK.
  • Weigend, M. (2002) Observations on the biogeography of the Amotape-Huancabamba zone in northern Peru. Botanical Review, 68, 3854.
  • Wille, M., Hooghiemstra, H., Hofstede, R., Fehse, J. & Sevink, J. (2002) Upper forest line reconstruction in a deforested area in northern Ecuador based on pollen and vegetation analysis. Journal of Tropical Ecology, 18, 409440.
  • Yimer, F., Ledin, S. & Abdelkadir, A. (2006a) Soil property variations in relation to topographic aspect and vegetation community in the south-eastern highlands of Ethiopia. Forest Ecology and Management, 232, 9099.
  • Yimer, F., Ledin, S. & Abdelkadir, A. (2006b) Soil organic carbon and total nitrogen stocks as affected by topographic aspect and vegetation in the Bale Mountains, Ethiopia. Geoderma, 135, 335344.
  • Yimer, F., Ledin, S. & Abdelkadir, A. (2007) Changes in soil organic carbon and total nitrogen contents in three adjacent land use types in the Bale Mountains, south-eastern highlands of Ethiopia. Forest Ecology and Management, 242, 337342.
  • Young, K. & Lipton, J.K. (2006) Adaptive governance and climate change in the tropical highlands of western South America. Climatic Change, 78, 63102.
  • Young, T.P. & Peacock, M.M. (1992) Giant senecios and alpine vegetation of Mount Kenya. Journal of Ecology, 80, 141148.
  • Zehetner, F. & Miller, W.P. (2006) Erodibility and runoff-infiltration characteristics of volcanic ash soils along an altitudinal climosequence in the Ecuadorian Andes. Catena, 65, 201213.