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Mostrando ítems 21-40 de 57

    • Ground and satellite based detection of rangeland management in per humid grasslands of Argentina 

      Kurtz, Ditmar Bernardo (Faculty of Agriculture, Universität zu Bonn, 2007-01)
      Ranging is the most important single agricultural activity in the department of Empedrado, in the province of Corrientes, Argentina. The present study focuses on three issues (i) the classification of land cover types, ...

    • Herbivory and nutrients shape grassland soil seed banks 

      Eskelinen, Anu; Jessen, Maria Theresa; Bahamonde, Hector Alejandro; Bakker, Jonathan D.; Borer, Elizabeth T.; Caldeira, Maria C.; Harpole, William Stanley; Jia, Meiyu; Lannes, Luciola S.; Nogueira, Carla; Venterink, Harry Olde; Peri, Pablo Luis; Porath-Krause, Anita J.; Seabloom, Eric William; Schroeder, Katie; Tognetti, Pedro M.; Yasui, Simone-Louise E.; Virtanen, Risto; Sullivan, Lauren L. (Springer Nature, 2023-07-04)
      Anthropogenic nutrient enrichment and shifts in herbivory can lead to dramatic changes in the composition and diversity of aboveground plant communities. In turn, this can alter seed banks in the soil, which are cryptic ...

    • High impact grazing as a management tool to optimize biomass growth in northern Argentinean grassland 

      Kurtz, Ditmar Bernardo; Asch, Folkard; Giese, Marcus; Hülsebusch, Christian; Goldfarb, Maria Cristina; Casco, Jose Francisco (2016-04)
      Grasslands are the main source of feed for cattle in Argentina. Standing dead biomass accumulation threatens efficient resource use. The effect and timing of high impact grazing by cattle as a management tool to remove ...

    • Impact of stocking rate on species diversity and composition of a subtropical grassland in Argentina 

      Pizzio, Rafael Mario; Herrero Jáugueri, Cristina; Pizzio, Mariano; Oesterheld, Martin (Wiley, 2016-07)
      Questions: What is the effect of a range of controlled stocking rates on plant species richness and diversity? Location: Subtropical grasslands of Corrientes, Argentina, South America. Methods: We studied the effect of ...

    • INTA: propone sustituir el césped por praderas naturales 

      Bugallo, Veronica Lucia; Facciuto, Gabriela Rosa (Economía & Viveros, 2023-01-02)
      Durante su sexta Jornada Demostrativa Abierta, el Instituto de Floricultura destacó los beneficios de las praderas naturales. Especies de esta nueva línea de investigación.

    • Leaf nutrients, not specific leaf area, are consistent indicators of elevated nutrient inputs 

      Firn, Jennifer L.; McGree, James M.; Harvey, Eric; Flores-Moreno, Habacuc; Schütz, Martin; Buckley, Yvonne M.; Borer, Elizabeth T.; Seabloom, Eric William; La Pierre, Kimberly J.; MacDougall, Andrew S.; Prober, Suzanne M.; Stevens, Carly J.; Sullivan, Lauren L.; Porter, Erica; Ladouceur, Emma; Allen, Charlotte; Moromizato, Karine H.; Morgan, John W.; Harpole, William Stanley; Hautier, Yann; Eisenhauer, Nico; Wright, Justin P.; Adler, Peter B.; Arnillas, Carlos Alberto; Bakker, Jonathan D.; Biederman, Lori; Broadbent, Arthur A.D.; Brown, Cynthia S.; Bugalho, Miguel N.; Caldeira, Maria C.; Cleland, Elsa E.; Ebeling, Anne; Fay, Philip A.; Hagenah, Nicole; Kleinhesselink, Andrew R.; Mitchell, Rachel; Moore, Joslin L.; Nogueira, Carla; Peri, Pablo Luis; Roscher, Christiane; Smith, Melinda D.; Wragg, Peter D.; Risch, Anita C. (Nature Research, 2019)
      Leaf traits are frequently measured in ecology to provide a ‘common currency’ for predicting how anthropogenic pressures impact ecosystem function. Here, we test whether leaf traits consistently respond to experimental ...

    • Linking changes in species composition and biomass in a globally distributed grassland experiment 

      Ladouceur, Emma; Blowes, Shane A.; Chase, Jonathan M.; Clark, Adam T.; Garbowski, Magda; Alberti, Juan; Arnillas, Carlos Alberto; Bakker, Jonathan D.; Barrio, Isabel C.; Bharath, Siddharth; Peri, Pablo Luis; Harpole, Stanley (Wiley, 2022-11-24)
      Global change drivers, such as anthropogenic nutrient inputs, are increasing globally. Nutrient deposition simultaneously alters plant biodiversity, species composition and ecosystem processes like aboveground biomass ...

    • Lotus tenuis maintains high arbuscular mycorrhizal diversity in grasslands regardless of soil properties or management 

      García, Ileana Vanesa; Covacevich, Fernanda; Fernandez Lopez, Carolina; Cabello, Marta Noemí (Elsevier, 2023-07)
      This study aimed to evaluate the root colonization and diversity of arbuscular mycorrhizal fungi (AMF) associated with Lotus tenuis grown in natural and L. tenuis-promoted grasslands (by herbicide application, which consists ...

    • Management of excess standing biomass in Argentinean grasslands to increase grass and livestock productivity 

      Kurtz, Ditmar Bernardo (Faculty of Agricultural Sciences, University of Hohenheim, 2016)
      Grasslands are the main source of feed for cattle in Argentina. Standing dead biomass (SDB) accumulation threatens efficient resource use. To reduce dead biomass pools in Northern Argentinean rangelands, high impact grazing ...

    • Management of grassland/savannas encroached by woody plants in South American Semiarid Chaco: Ecological restoration vs. African grasses introduction 

      Coria, Rubén Darío; Kunst, Carlos Roberto; Anriquez, Analía Liliana; Bravo, Sandra (Asociación Argentina de Ecología, 2023-08)
      In Semiarid Chaco, two management approaches for woody plant-encroached grassland/savannas were evaluated: ecological restoration and the African grass introduction. An experiment with five treatments was carried out: 1) ...

    • Manual para la instalación y lectura de monitores MARAS. Monitoreo Ambiental para Regiones Áridas y Semiáridas 

      Oliva, Gabriel Esteban; Gaitan, Juan Jose; Bran, Donaldo Eduardo; Nakamatsu, Viviana Beatriz; Salomone, Jorge Manuel; Buono, Gustavo Gabriel; Escobar, Juan Maria; Frank, Federico Carlos; Ferrante, Daniela; Humano, Gervasio; Ciari, Georgina; Suarez, Diego; Opazo, Walter Javier; Adema, Edgardo Osvaldo (EEA Santa Cruz, INTA, 2010)
      Los pastizales naturales de la Patagonia son ecosistemas únicos en su tipo y constituyen la base de la ganadería ovina tradicional. Los pastizales proveen de importantes servicios ambientales, ya que son ricos en diversidad ...

    • Microbial processing of plant remains is co‐limited by multiple nutrients in global grasslands 

      Ochoa-Hueso, Raúl; Borer, Elizabeth T.; Seabloom, Eric William; Hobbie, Sarah E.; Risch, Anita C.; Collins, Scott L.; Alberti, Juan; Bahamonde, Héctor Alejandro; Brown, Cynthia S.; Caldeira, Maria C.; Daleo, Pedro; Dickman, Chris R.; Ebeling, Anne; Eisenhauer, Nico; Esch, Ellen H.; Eskelinen, Anu; Fernández, Victoria; Güsewell, Sabine; Gutierrez-Larruga, Blanca; Hofmockel, Kirsten; Laungani, Ramesh; Lind, Eric M.; López, Andrea; McCulley, Rebecca L.; Moore, Joslin L.; Peri, Pablo Luis; Power, Sally A.; Price, Jodi N.; Prober, Suzanne M.; Roscher, Christiane; Sarneel, Judith M.; Schütz, Martin; Siebert, Julia; Standish, Rachel J.; Velasco Ayuso, Sergio; Virtanen, Risto; Wardle, Glenda M.; Wiehl, Georg; Yahdjian, Laura; Zamin, Tara (Wiley, 2020-06)
      Microbial processing of aggregate‐unprotected organic matter inputs is key for soil fertility, long‐term ecosystem carbon and nutrient sequestration and sustainable agriculture. We investigated the effects of adding multiple ...

    • Mineral fertilization impacts microbial activity and endophytic fungi but not microbial biomass in semiarid grasslands 

      Toledo, Santiago; Gargaglione, Veronica Beatriz; Peri, Pablo Luis (Elsevier, 2024-01)
      Applications of mineral fertilizer to grasslands have become more frequent in recent decades to increase forage production. However, the impacts of mineral fertilizer on the soil microbiome is poorly understood in cold ...

    • Modularity, pollination systems, and interaction turnover in plant‐pollinator networks across space 

      Carstensen, Daniel W.; Sabatino, Cristina Malena; Morellato, Leonor Patricia C. (Wiley, 2016-05)
      Mutualistic interaction networks have been shown to be structurally conserved over space and time while pairwise interactions show high variability. In such networks, modularity is the division of species into compartments, ...

    • Monitores MARAS: una metodología eficiente y precisa para evaluar el efecto a largo plazo del pastoreo sobre las praderas y pastizales naturales 

      Dominguez, Erwin; Oliva, Gabriel Esteban; Báez, John; Suarez Navarro, Angel Eduardo (Instituto de Investigaciones Agropecuarias, Chile, 2019-05)
      El objetivo de este informativo es dar a conocer esta herramienta implementada por la EEA INTA Santa Cruz y por INIA Kampenaike, usada para evaluar el efecto a largo plazo de cualquier tipo de pastoreo (por ejemplo: ...

    • Monitoring Patagonian Rangelands: The MARAS System 

      Oliva, Gabriel Esteban; Escobar, Juan Maria; Siffredi, Guillermo Lorenzo; Salomone, Jorge Manuel; Buono, Gustavo Gabriel (U.S. Department of Agriculture, Forest Service, 2006)
      Rangelands in Patagonia have been managed with a lack of regulation since the introduction of sheep in the late 1880’s. Most rangelands are under private freehold in ‘estancias’ and the rest are public and managed by small ...

    • Nitrogen but not phosphorus addition affects symbiotic N2 fixation by legumes in natural and semi‑natural grasslands located on four continents 

      Vázquez, Eduardo; Schleuss, Per‑Marten; Borer, Elizabeth T.; Bugalho, Miguel N.; Caldeira, Maria. C.; Eisenhauer, Nico; Eskelinen, Anu; Fay, Philip A.; Haider, Sylvia; Jentsch, Anke; Kirkman, Kevin P.; McCulley, Rebecca L.; Peri, Pablo Luis; Price, Jodi; Richards, Anna E.; Risch, Anita C.; Roscher, Christiane; Schütz, Martin; Seabloom, Eric William; Standish, Rachel J.; Stevens, Carly J.; Tedder, Michelle J.; Virtanen, Risto; Spohn, Marie (Springer Nature, 2022-09)
      The amount of nitrogen (N) derived from symbiotic N2 fixation by legumes in grasslands might be affected by anthropogenic N and phosphorus (P) inputs, but the underlying mechanisms are not known. Methods We evaluated ...

    • Nothing lasts forever: Dominant species decline under rapid environmental change in global grasslands 

      Wilfahrt, Peter A.; Seabloom, Eric William; Bakker, Jonathan D.; Biederman, Lori A.; Bugalho, Miguel N.; Cadotte, Marc W.; Caldeira, Maria C.; Catford, Jane A.; Chen, Qingqing; Donohue, Ian; Peri, Pablo Luis; Borer, Elizabeth T. (British Ecological Society, 2023-11)
      1. Dominance often indicates one or a few species being best suited for resource capture and retention in a given environment. Press perturbations that change availability of limiting resources can restructure competitive ...

    • Nutrient availability controls the impact of mammalian herbivores on soil carbon and nitrogen pools in grasslands 

      Sitters, Judith; Wubs, E.R. Jasper; Bakker, Elisabeth S.; Crowther, Thomas W.; Adler, Peter B.; Bagchi, Sumanta; Bakker, Jonathan D.; Biederman, Lori; Borer, Elizabeth T.; Cleland, Elsa E.; Eisenhauer, Nico; Firn, Jennifer L.; Gherardi, Laureano A.; Hagenah, Nicole; Hautier, Yann; Hobbie, Sarah E.; Knops, Johannes M.H.; MacDougall, Andrew S.; McCulley, Rebecca L.; Moore, Joslin L.; Mortensen, Brent; Peri, Pablo Luis; Prober, Suzanne M.; Riggs, Charlotte E.; Risch, Anita C.; Schütz, Martin; Seabloom, Eric William; Siebert, Julia; Stevens, Carly J.; Veen, G.F. (Ciska) (Wiley, 2020-02)
      Grasslands are subject to considerable alteration due to human activities globally, including widespread changes in populations and composition of large mammalian herbivores and elevated supply of nutrients. Grassland soils ...

    • Nutrient enrichment increases invertebrate herbivory and pathogen damage in grasslands 

      Ebeling, Anne; Strauss, Alex T.; Adler, Peter B.; Arnillas, Carlos Alberto; Barrio, Isabel C.; Biederman, Lori A.; Borer, Elizabeth T.; Bugalho, Miguel N.; Caldeira, Maria C.; Cadotte, Marc W.; Peri, Pablo Luis; Blumenthal, Dana M. (British Ecological Society, 2022-02)
      1- Plant damage by invertebrate herbivores and pathogens influences the dynamics of grassland ecosystems, but anthropogenic changes in nitrogen and phosphorus availability can modify these relationships. 2- Using a globally ...