Cátedra de Ecología


En esta sección se sintetizan los resultados de la actividad de investigación de la cátedra desde 1983.

1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994
1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006


Adler, P. B.; Garbulsky, M. F.; Paruelo, J. M.; Lauenroth, W. K. Do abiotic differences explain contrasting graminoid functional traits in sagebrush steppe, USA and Patagonian steppe, Argentina?. Journal of Arid Environments, 65: 62-82.

Austin, A. T.; Vivanco, L.. Plant litter decomposition in a semi-arid ecosystem controlled by photodegradation. Nature. 442:555-558.

Austin, A. T., Sala, O. E.; Jackson, R. B. Inhibition of nitrification alters carbon turnover in the Patagonian steppe. Ecosystems, en prensa.

Austin, A. T., G. Piñiero, and M. Gonzalez Polo. (2006). More is less: agricultural impacts on the N cycle in Argentina. Biogeochemistry. 79:45-60.

Caccia, F., Chaneton, E.J.; Kitzberger, T. 2006. Trophic and non-trophic pathways mediate apparent competition through post-dispersal seed predation in a Patagonian mixed forest. Oikos 113: 469-480.

Chaneton, E. Las inundaciones en pastizales pampeanos. Impacto ecológico de las perturbaciones naturales. Ciencia Hoy, 16: 18-31.

Fernández, R.J. 2006. On the frequent lack of response of plants to rainfall events in arid areas. Journal of Arid Environments, en prensa.

Garibaldi, L.A.; Semmartin, M.; Chaneton, E.J. Grazing-induced changes in plant composition affect litter quality and nutrient cycling in Flooding Pampa grasslands. Oecologia, en prensa.

Graff, P., Aguiar, M.R.; Chaneton, E.J. Shifts in relative strength of positive and negative plant neighbor interactions along a grazing intensity gradient. Ecology, en prensa.

Gundel, P. E.; Maseda, P. H.; Vila-Aiub, M. M.; Ghersa, C. M.; Benech Arnold, R. L. Effects of Neotyphodium Fungi on Lolium multiflorum seed germination in relation to water availability. Annals of Botany, 97: 571-577.

Martinelli, L. A., R. W. Howarth, E. Cuevas, S. Filoso, A. T. Austin, L. Donoso, V. Huzsar, D. Keeney, L. L. Lara, C. Llerena, G. McIssac, E. Medina, J. Ortiz-Zayas, D. Scavia, D. W. Schindler, D. Soto, and A. Townsend. The origin and fate of reactive nitrogen in Latin America and the Caribbean. Biogeochemistry. 79:3-24.
Maseda, P.H.; Fernández, R.J. . 2006. Stay wet or else: Three ways in which plants can adjust hydraulically to their environment. Journal of Experimental Botany, en prensa

Mazía, C.N., Chaneton, E.J.; Kitzberger, T. Small-scale habitat use and assemblage structure of ground-dwelling beetles in a Patagonian shrub steppe. Journal of Arid Environments 67: 177-194.

Omacini, M.; Eggers, T.; Bonkowski, M.; Gange, A. C.; Jones, T. H. Leaf endophytes affect mycorrhizal status and growth of co-infected and neighbouring plants. Functional Ecology, 20: 226-232.

Phoenix, G. K.; Hicks, W. K.; Cinderby, S.; Kuylenstierna, J. C.; Stock, W. D.; Dentener, F. J.; Giller, K. E.; Austin, A. T.; Lefroy, R. D.; Gimeno, B. S.; Ashmore, M. R.; Ineson, P. Atmospheric nitrogen deposition in world biodiversity hotspots: the need for a greater global perspective in assessing N deposition impacts. Global Change Biology, 12: 470-476.

Piñeiro, G., Oesterheld, M.; Paruelo, J.M. Seasonal variation in aboveground production and radiation-use efficiency of temperate rangelands estimated through remote sensing. Ecosystems 9, 357-373.

Piñeiro, G., Oesterheld, M.; Batista, W.B.; Paruelo, J.M. Opposite changes of whole-soil vs pools C:N ratios: a case of Simpson's paradox with implications on nitrogen cycling. Global Change Biology 12, 804-809.

Piñeiro, G., Paruelo, J.M.; Oesterheld, M. Potential long-term impacts of domestic herbivores on carbon and nitrogen biogeochemical cycles in South American grasslands. Global Change Biology 12, 1267-1284.

Rotundo, J. L.; Cipriotti, P.; Gundel, P. E. Morphological and growth responses to water stress of two subpopulations of Bromus pictus from soils with contrasting water availability. Revista Chilena de Historia Natural, 79: 65-74.

Semmartin, M. Dinámica de la descomposición y la mineralización neta del nitrógeno y del fósforo de heces de vacunos provenientes de un pastizal templado. Revista Argentina de Producción Animal, en prensa.

Semmartin, M.; Ghersa, C. M. Intraspecific changes in plant morphology, associated with grazing, and effects on litter quality, carbon and nutrient dynamics during decomposition. Austral Ecology, 31: 99-105.

Semmartin, M.; Oyarzábal, M.; Loreti J.; Oesterheld, M. Controls of primary productivity and nutrient cycling in a temperate grassland with year-round production. Austral Ecology (en prensa)

Striker, G.; Insausti, P.; Grimoldi, A.; León, R. J. C. Root strength and trampling tolerance in the grass Paspalum dilatatum and the dicot Lotus glaber in flooded soil. Functional Ecology, 20: 4-10.

Verón, S.R., J.M. Paruelo y M. Oesterheld. Assessing desertification. J. Arid Environments 66, 751-763.

Vivanco, L. and A. T. Austin. Intrinsic effects of species on leaf litter and root decomposition: a comparison of temperate grass species from North and South America. Oecologia. DOI 10.1007/s00442-006-0495-z.

Yahdjian, L., Sala, O.E.; Austin, A.T.. Differential controls of water input on litter decomposition and nitrogen dynamics in the Patagonian steppe. Ecosystems. 9:128-141.

Yahdjian, L. ; Sala, O. E. Vegetation structure constrains primary production response to water availability in the Patagonian steppe. Ecology, 87 (4): 952-962.

Yahdjian, L.; Sala, O. E.; Austin, A. T. Differential controls of water input on litter decomposition and Nitrogen dynamics in the Patagonian Steppe. Ecosystems, 9: 128-141.


Adler, PB; Milchunas, DG; Sala, OE; Burke, IC; Lauenroth, WK. Plant traits and ecosystem grazing effects: comparison of US sagebrush steppe and Patagonian steppe. Ecological Applications 15:774-792.

Aguiar, MR; Cipriotti, PA; Wiegand, T. Procesos poblacionales denso-dependientes y la generación de patrones de heterogeneidad dentro de la comunidad. pp 59-79 en Oesterheld et al. (op.cit.).

Aguiar, MR. Biodiversity in grasslands: current changes and scenarios for the future. pp 273-293 in Reynolds, S; Frame, J, editors. Grasslands: Developments, Opportunities, Perspectives. Food and Agricultural Organization (FAO), Rome.

Altesor, A; Oesterheld, M; Leoni, E; Lezama, F; Rodríguez, C. Effect of grazing on community structure and productivity of a Uruguayan grassland. Journal of Vegetation Science 179:83-91.

Barberis, IM; Lewis, JP; Batista, WB. Heterogeneidad estructural de los bosques de la Cuña Boscosa de Santa Fe en distintas escalas espaciales. pp 43-58 en Oesterheld et al. (op.cit.).

Batista, WB; Taboada, MA; Lavado, RS; Perelman, SB; León, RJC. Asociación entre comunidades vegetales y suelos en el pastizal de la Pampa Deprimida. pp 113-129 en Oesterheld et al. (op.cit.).

Burkart, SE; Garbulsky, MF; Ghersa, CM; Guerschman, JP; León, RJC; Oesterheld, M; J.M., P; Perelman, SB. Las comunidades potenciales del pastizal pampeano bonaerense. pp 379-399 en Oesterheld et al. (op.cit.).

Chaneton, EJ; Perelman, SB; León, RJC. Floristic heterogeneity of Flooding Pampa gasslands: a multi-scale analysis. Plant Biosystems 139:245-254.

Chaneton, EJ. Factores que determinan la heterogeneidad de la comunidad vegetal en diferentes escalas espaciales. pp 19-42 16 en Oesterheld et al. (op.cit.).

Cipriotti, PA; Aguiar, MR. Effects of grazing on patch structure in a semi-arid two-phase vegetation mosaic. Journal of Vegetation Science 16:57-66.

Cipriottti, PA; Aguiar, MR. Interspecific competition interacts with the spatial distribution of a palatable grass to reduce its recruitment. Rangeland Ecology and Management 58:393-399.

Fernández, RJ; Trillo, N. La textura del suelo como fuente de heterogeneidad; sus efectos sobre la oferta de agua para las plantas. pp 171-192 en Oesterheld et al. (op.cit.).

Ghersa, CM. La sucesión ecológica en los agroecosistemas pampeanos: sus modelos y significado agronómico. pp 195-214 en Oesterheld et al. (op.cit.).

Golluscio, RA; Oesterheld, M; Aguiar, MR. Relationship between phenology and life form: a test with 25 Patagonian species. Ecography 28:273-282.

Golluscio, RA; Pérez, JA; Paruelo, JM; Ghersa, CM. Spatial heterogeneity at different grain sizes in grazed versus ungrazed sites of the Patagonian steppe. Ecoscience 12:103-109.

Golluscio, RA. Dimensiones de la heterogeneidad a nivel de comunidad: Profundidad radical y fenología en 25 especies patagónicas. pp 145-169 en Oesterheld et al. (op.cit.).

Grimoldi, AA; Insausti, P; Vasellati, W; Striker, G. Constitutive and plastic root traits and their role in differential tolerance to soil flooding among coexisting species of a lowland grassland. International Journal of Plant Science 166:805-813.

Guerschman, JP; Paruelo, JM. Agricultural impacts on ecosystem functioning in temperate areas of North and South America. Global and Planetary Change 47:170-180.

Kareiva, P; Agard, JBR; Alder, J; Bennett, EM; Butler, C; Carpenter, SR; Cheung, W; Cumming, GS; Defries, R; de Vries, B; Dickson, RE; Dobson, A; Foley, J; Geoghegan, J; Holland, B; Kabat, P; Keymer, J; Kleidon, A; Lodge, D; Manson, S; Mcglade, J; Mooney, H; Parma, A; Pascual, M; Pereira, H; Rosegrnat, M; Ringler, C; Sala, OE; Turner, BL; van Vuuren, D; Wall, DH; Wilkinson, P; Wolters, V. State of the art in simulating future changes in ecosystem services. pp 71-115 in Carpenter, SR; Pingali, P; Bennett, EM; Zurek, M, editors. Ecosystems and Human Well-Being: Scenarios. Island Press, Washington DC.

León, RJC. Vegetación y enseñanza, vocación y pasión. pp 1-16 en Oesterheld et al. (op.cit.).

Insausti, P; Chaneton, EJ; Grimoldi, AA. Las inundaciones modifican la estructura y dinámica de la vegetación en los pastizales de la Pampa Deprimida. pp 253-269 en Oesterheld et al. (op.cit.).

Meyerson, LA; Baron, J; Melillo, JM; Naiman, RJ; O'Malley, RI; Orians, G; Palmer, MA; Pfaff, AS; Running, SW; Sala, OE. Aggregate measures of ecosystem services: can we take the pulse of nature? Frontiers in Ecology and the Environment 3:56-59.

Nosetto, MD; Jobbágy, EG; Paruelo, JM. Land use change and water losses: the case of grassland afforestation across a soil textural gradient in central Argentina. Global Change Biology 11:1-17.

Oesterheld, M; Aguiar, MR; Ghersa, CM; Paruelo, JM, editores. La heterogeneidad de la vegetación de los agroecosistemas. Un homenaje a Rolando León. Editorial Facultad de Agronomía, Buenos Aires.

Oesterheld, M; Aragón, RM; Grigera, G; Oyarzábal, M; Semmartin, M. ¿Cómo deben percibir la heterogeneidad quienes manejan la vegetación de los agroecosistemas? El caso de la Pampa Deprimida. pp 131-144 en Oesterheld et al. (op.cit.).

Pancotto, VA; Sala, OE; Robson, TM; Caldwell, MM; Scopel, AL. Direct and indirect effects of solar ultraviolet-B radiation on long-term decomposition. Global Change Biology 11:1982-1989.

Omacini, M; Chaneton, EJ; Ghersa, CM. A hierarchical framework for understanding the ecosystem consequences of endophyte-grass symbioses. pp 141-162 in Roberts, CA; West, CP; Spiers, DE, editors. Neotyphodium in Cool Season Grasses. Blackwell Science, London.

Omacini, M; Tognetti, PM; Trebino, H; Chaneton, EJ. La sucesión postagrícola en la Pampa Interior: invasión y dominancia de plantas exóticas durante los primeros 20 años. pp 215-234 en Oesterheld et al. (op.cit.).

Paruelo, JM; Piñeiro, G; Oyonarte, C; Alcaraz, D; Cabello, J; Escribano, P. Temporal and spatial patterns of ecosystem functioning in protected arid areas in southeastern Spain. Applied Vegetation Science 8:93-102.

Paruelo, JM. ¿Cuánto se han desertificado las estepas patagónicas? Evidencias a partir de la memoria del sistema. pp 303-319 en Oesterheld et al. (op.cit.).

Paruelo, JM; Guerschman, JP; Verón, SR. Expansión agrícola y cambios en el uso del suelo. Ciencia Hoy 15:14-23.

Perelman, SB; Batista, WB; León, RJC. El estudio de la heterogeneidad de la vegetación. Fitosociología y técnicas relacionadas. pp 321-350 en Oesterheld et al. (op.cit.).

Posse, G; Oesterheld, M; Di Bella, DM. Landscape, soil and meterological influences on canopy dynamics of northern flooding Pampa grasslands. Applied Vegetation Science 8:49-56.

Rotundo, JL; Aguiar, MR. Litter effects on plant regeneration in arid lands: a complex balance between seed retention, seed longevity and soil-seed contact. Journal of Ecology 93:829-838.

Sala, OE; van Vuuren, D; Pereira, H; Lodge, D; Alder, J; Cumming, GS; Dobson, A; Volters, W; Xenopoulos, X. Biodiversity across scenarios. pp 375-408 in Carpenter, SR; Pingali, P; Bennett, EM; Zurek, M, editors. Ecosystems and Human Well-Being: Scenarios. Island Press, Washington DC.

Striker, G; Insausti, P; Grimoldi, AA; Ploschuk, E; Vasellati, V. Physiological and Anatomical Basis of Differential Tolerance to Soil Flooding of Lotus corniculatus L. and Lotus glaber Mill. Plant and Soil 276:301-311.

Texeira, M; Paruelo, JM. Demography, population dynamics and sustainability of the Patagonian sheep flocks. Agricultural Systems 87:123-146.

Trillo, N; Fernández, RJ. Wheat plant hydraulic properties under prolonged experimental drought: stronger decline in root-system conductance than in leaf area. Plant and Soil 277:277-284.

Verón, SR; Oesterheld, M; Paruelo, JM. Production as a function of resource availability: slopes and efficiencies are different. Journal of Vegetation Science 16:351-354.

Vila Aiub, MM; Ghersa, CM. Building up resistance by recurrently exposing target plants to sublethal doses of herbicide. European Journal of Agronomy 22:195-207.

Vila Aiub, MM; Gundel, PE; Ghersa, CM. Fungal endophyte infection changes growth attributes in Lolium multiflorum Lam. Austral Ecology 30:49-57.

Vila Aiub, MM; Neve, P; Powles, SB. Resistance cost of a chytochrome P450 herbicide metabolism mechanism but not an ACCase target site mutation in a multiple resistant Lolium rigidum population. New Phytologist 167:787-796.

Vila Aiub, MM; Neve, P; Steadman, KS; Powles, SB. Ecological fitness of a multiple herbicide resistant Lolium rigidum population: dynamics of seed germination and seedling emergence of resistant and susceptible phenotypes. Journal of Applied Ecology 42:288-298.

Vila Aiub, MM; Neve, P; Powles, SB. Fitness costs of evolved herbicide resistance. pp 1-3 in Pimentel, D, editor. Encyclopedia of Pest Management. Taylor and Francis, New York.


Adler, P.B.; Milchunas, D.G.; Lauenroth, W.K.; Sala, O.E. and Burke, I. Functional traits of graminoids in semi-arid steppes: A test of grazing histories. Journal of Applied Ecology, 41:653-663.

Alcaraz, D.; Paruelo, J.M.; Oyonarte, C.; Piquer, M.; y Cabello, J. Tipos funcionales de ecosistemas de la Península Ibérica. Implicaciones para el cambio global y la conservación de la Biodiversidad. Ecosistemas, 13:1-8.

Aragón, R. y Groom, M. Invasion by Ligustrum lucidum in NW Argentina: plant characteristics in different habitat types. Journal of Tropical Biology, 51:59-70.

Austin, A.T.; Yahdjian, L.; Stark, J.M.; Belnap, J.; Porporato, A.; Norton, U.; Ravetta, D.A.; Schaeffer, S.M. Water pulses and biogeochemical cycles in arid and semi-arid ecosystems. Oecologia, 141:221-235.

Chaneton, E.J.; Mazia, C.N.; Machera, M.; Uchitel, A. and Ghersa, C.M. Establishment of Honey Locust (Gleditsia triacanthos) in Burned Pampean Grasslands. Weed Technology, 18:1325-1329.

Cipriotti, P.A.; Premoli, A.C.; Aguiar, M.R. ANCESTOR: A program to calculate genetic pairwise relatedness and individual inbreeding coefficients. Journal of Basic & Applied Genetics, 16:1-4.

Epstein, H.E.; Paruelo, J.M.; Piñeiro, G.; Burke, I.C.; Lauenroth, W.K. Interactions of water and nitrogen on primary productivity across spatial and temporal scales in grassland and shrubland ecosystems. (Porporato A. and P. D’Odorico eds.), Dryland ecohydrology. Springer-Verlag, Berlin.

Garbulsky, M.F.; Paruelo, J.M. Remote sensing of protected areas to derive baseline vegetation functioning characteristics. Journal of Vegetation Science, 15:711-720.

Grigera, G.; Oesterheld, M. Mycorrhizal Colonization Patterns Under Contrasting Grazing and Topographic Conditions in the Flooding Pampa (Argentina). Journal of Range Management, 57:601-605.

Huxman, T.E.; Smith, M.; Fay, P.A.; Knapp, A.K.; Shaw, M.R.; Loik, M.E.; Smith, S.D.; Tissue, D.T.; Zak, J.C.; Weltzin, J.F.; Pockman, W.T.; Sala, O.E.; Haddad, B.M.; Harte, J.; Koch, G.W.; Schwinning, S.; Small, E.E. and Williams, D.G. Convergence across biomes to a common rain-use efficiency. Nature, 429:651-654.

Kaye, J.P.; Burke, I.; Mosier, A.R. and Guerschman, J.P. Methane and Nitrous Oxide Fluxes From Urban Soils to the Atmosphere. Ecological Applications, 14:975-981.

Lanctot, R.B.; Blanco, D.E.; Oesterheld, M.; Balbueno, R.A.; Guerschman, J.P.; y Piñeiro, G. Assesing habitat availability and use by buff-breasted sandpipers (Tryngites subruficollis) wintering in South America. Ornitologia Neotropical, 15 (Suppl.).

Martínez-Ghersa, M.A.; Vila Aiub, M.M.; Ghersa, C.M.; Gundel, P.; Satorre, E.H. Herbicide Selection of Italian Ryegrass under Different Levels of UV-B Radiation. Journal of Enviromental Quality, 33:1376-1386.

Mazía, C.N.; Kitzberger, T.; Chaneton, E. Interannual changes in folivory and bird insectivory along a natural productivity gradient in northern Patagonian forests. Ecography, 27:29-40.

Oesterheld, M.; Oyarzábal, M. Grass-to-grass protection from magazing in a semi-arid steppe. Facilitation, competition, and mass effect. Oikos, 107:576-582.

Omacini, M.; Chaneton, E.J.; Ghersa, C.M.; Otero, P. Do foliar endophytes affect grass litter decomposition? A microcosm approach using Lolium multiflorum. Oikos, 104:581-590.

Paruelo, J.M.; Garbulsky, M.F.; Guerschman, J.P. and Jobbágy, E. Two decades of Normalized Difference Vegetation Index changes in South América: identifying the imprint of global change. International Journal of Remote Sensing, 25:2793-2806.

Paruelo, J.M.; Golluscio, R.A.; Guerschman, J.P.; Cesa, A.; Jouve, V.V. and Garbulsky, M.F. Regional scale relationships between ecosystem structure and functioning: the case of the Patagonian steppes. Global Ecology and Biogeography, 13:385-395.

Paruelo, J. M.; Guerschman, J.P.; Baldi, G.; Di Bella, C. La estimación de la superficie agrícola. Antecedentes y una propuesta metodológica. Interciencia, 29:421-427.

Reynolds, J.F.; Kemp, P.R.; Ogle, K.; Fernández, R.J. Modifying the pulse-reserve paradigm for deserts of North America: precipitation pulses, soil water, and plant responses. Oecología, 141:194-210.

Robson, T. M.; Pancotto, V.A.; Ballaré, C.L.; Sala, O.E.; Scopel, A.L. and Caldwell, M.M. Reduction of solar UV-B mediates changes in the Sphagnum capitulum microenvironment and the peatland microfungal community. Oecologia, 140:480-490.

Rotundo, J.L.; Aguiar, M.R. Vertical seed distribution in soil constrains regeneration processes of Bromus pictus in a Patagonian steppe. Journal of Vegetation Science, 15:514-522.

Schwinning, S.; Sala, O.E. Hierarchy of responses to resource pulses in arid and semi-arid ecosystems. Oecologia, 141:211-220.

Schwinning, S.; Sala, O.E.; Loik, M.E.; Ehleringer, J.R. Thresholds, memory, and seasonality: understanding pulse dynamics in arid/semi-arid ecosystems. Oecologia, 141:191-193.

Semmartin, M.; Aguiar, M.R.; Distel, R.A.; Moretto, A.S.; Ghersa, C.M. Litter quality and nutrient cycling affected by grazing-induced species replacements along a precipitation gradient. Oikos, 107:148-160.

Verón, S.R.; Paruelo, J.M.; Slafer, G.A. Interannual variability of wheat yield in the Argentine Pampas during the 20th century. Agriculture, Ecosystems and Enviroment, 103:177-190.

Wiegand, T.; Snyman, H.A.; Kellner, K. and Paruelo, J.M. Do Grasslands Have a Memory: Modeling Phytomass Production of a Semiarid South African Grassland. Ecosystems, 7:243-258.

Zaller, J.G.; Searles, P.S.; Caldwell, M.M.; Flint, S.D.; Scopel, A.L.; Sala, O.E. Growth responses to ultrviolet-B radiation of two Carex species dominating an Argentinian fen ecosystem. Basic and Applied Ecology, 5:153-162.


Amundson, R., Austin, A.T., Schuur, E.A., Yoo, G.K., Matzek, V., Kendall, Uebersax, C.A Brenner, .D., Baisden, W.T. (2003). Global patterns of the isotopic composition of soil and plant nitrogen. Global Biogeochemical Cycles 17:31-1-31-10.

Batista, W.B, Platt, W.B. (2003). Tree population responses to hurricane disturbance: syndromes in a southeastern United States old-growth forest. Journal of Ecology, 91:197-212.

de la Fuente, E., S Suarez, C.M. Ghersa (2003). Weed and insect communities in wheat crops with different management practices. Agronomy Journal, 95: 1542-1549.

Ferraro, D.O., C.M. Ghersa, G. Sznaider (2003). Evaluation of environmental impact indicators using fuzzy logic to assess the mixed cropping systems of the Inland Pampa. Agriculture, Ecosystems and Environment, 2048: 1-18.

Giordano C.V., Mori T., Sala O. E., Scopel A. L., Caldwell M. M., Ballaré C. L. (2003). Functional acclimation to solar UV-B radiation in Gunnera magellanica, a native plant species of southernmost Patagonia. Plant Cell and Environment, 26, 2027-2036.

Guerschman, J.P., Paruelo, J.M., Burke, I.C. (2003). Land use impacts on the normalized difference vegetation index in temperate Argentina. Ecological Applications. 13(3) 616-628.

Guerschman, J.P., Paruelo, J.M., Di Bella, C.M., Giallorenzi, M.C., Pacín, F. (2003). Land cover classification in the Argentine Pampas using multitemporal LANDSAT-TM data. International Journal of Remote Sensing 24(17):3381-3402.

Higgins, S., Clark, J.S., Nathan, R., Hovestadt, T., Schurr, F., Fragoso, J.M., Aguiar, M.R., Ribbens, E., Lavorel, S. (2003). Forecasting plant migration rates: managing uncertainty for risk assessment. Journal of Ecology 91:341-347.

López, N. I., A. T. Austin, O. E. Sala, and B. S. Méndez. (2003). Controls on nitrification in a water-limited ecosystem: experimental inhibition of ammonia-oxidising bacteria in the Patagonian steppe. Soil Biology & Biochemistry 35: 1609-1613.

Martínez-Ghersa, M.A., Worster, C.A., Radosevich, S.R. (2003). Concerns a weed scientist still might have about herbicide-tolerant crops: a revisitation. Weed Technology, 17: 202-210.

Ollinger, S., O. E. Sala, G. Agren, B. Berg, E. Davidson, C. B. Field, M. Lerdau, J. Neff, M. Scholes, and R. Sterner. (2003). New frontiers in the study of element interactions. Pages 63-91 In J. M. Melillo, C. B. Field, and B. Moldan, editors. Interactions of the major biogeochemical cycles: Global change and human impacts. Island Press, Washington, DC.

Paruelo, J.M., Aguiar M.R. (2003). Impacto humano sobre los ecosistemas. El caso de la desertificación. Ciencia Hoy 13:48-59.

Perelman, S.B., Burkart, S.E., León, R.J.C. (2003). The role of a native tussock-grass (Paspalum quadrifarium) in structuring plant communities in the Flooding Pampa grasslands, Argentina. Biodiversity and Conservation 12: 225-238.

Perelman, S., Mazzella, M.A., Muschietti, J., Zhu, T., Casal, J.J. (2003). Finding unexpected patterns in microarray data. Plant Physiology 133, 1717-1725

Perez-Flores, L., Carrari, F., Osuna-Fernandez, R., Rodriguez, V., Enciso, S., Staneloni, R., Radosevich, S.R., Stubbs, Ghersa, C.M. (2003). Plant invasions. Process and patterns. Weed Science 51: 254-259.

Robson, T. M., V. A. Pancotto, S. D. Flint, C. L. Ballaré, O. E. Sala, A. L. Scopel, and M. M. Caldwell. (2003). Six years of solar UV-B manipulations affect growth of Sphagnum and vascular plants in a Tierra del Fuego peatland. New Phytologist 160: 379-389.

Sala, O.E. (2003). Almost all about biodiversity. Science 299: 1521.

Vila-Aiub MM, Martinez-Ghersa MA, Ghersa CM (2003). Evolution of herbicide resistance in weeds: vertically transmitted fungal endophytes as genetic entities. Evolutionary Ecology 17:441-456.

Vila Aiub, M.M., Ghersa, C.M., Carceller, M. (2003). Effect of herbicide diclofop-methyl on proton extrusion from Lolium multiflorum seedlings differing in resistance and in fungal endophyte (Neotyphodium) infection. Physiologia Plantarum 119: 429-439.


Austin, A.T. (2002). Differential effects of precipitation on production and decomposition along a rainfall gradient in Hawaii. Ecology, 83:328-338.

Austin, A. T., and O. E. Sala. 2002. Carbon and nitrogen dynamics across a natural precipitation gradient in Patagonia, Argentina. Journal of Vegetation Science. 13: 351-360.

Chaneton, E.J., Perelman, S.B., Omacini, M. y León, R.J.C. Grazing, environmental heterogeneity, and alien plant invasions in temperate Pampa grasslands. Biological Invasions 4: 7-24.

Fernández, R.J. Do humans create deserts? (Meeting Report). (2002). Trends in Ecology and Evolution, 17:6-7.

Fernández, R.J., Golluscio, R.A., Bisigato, A.J. and Soriano, A. (2002). Gap colonization in the Patagonian semidesert: Seed bank and diaspore morphology. Ecography, 25:336-344.

Fernández, R.J., Wang, M. and Reynolds, J.F. (2002). Do morphological changes mediate plant responses to water stress? A steady-state experiment with two C4 grasses. New Phytologist, 155:79-88.

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