MANEJO ECOSISTÉMICO DE RECURSOS NATURALES RENOVABLES EN LA ZONA SEMIÁRIDA (MERRZSA)
Directores:
Dr. Alejandro Loydi
Investigador Adjunto, CONICET
Ayudante Docencia, Ecología Gral. Dpto Biología, Bioqca. y Fcia. UNS
Datos académicos CONICET
Estudiamos los ecosistemas en forma integral, con el objetivo de desarrollar herramientas de manejo, conservación y restauración de los recursos naturales y servicios ecosistémicos. Nuestros proyectos abarcan distintos aspectos de la biología y ecología de pastizales naturales, ecosistemas agrícola-ganaderos, humedales costeros y ecosistemas marino-costeros del sudoeste de la Provincia de Buenos Aires.
Líneas de Investigación
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Ecología de pastizales naturales: estudiamos el impacto de disturbios como el pastoreo, el fuego o la sequía sobre la composición y atributos funcionales de los pastizales naturales.
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Restauración de pastizales naturales: evaluamos la posibilidad de mejoramiento y restauración de pastizales naturales a través del agregado de semillas de especies nativas.
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Productividad en ecosistemas agrícola-ganaderos: estudiamos la biología y ecología de pastos palatables y no palatables en sistemas ganaderos.
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Secuestro de carbono en humedales costeros: cuantificamos las vías de secuestro y las transformaciones del carbono orgánico en marismas y planicies de marea
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Dinámica de la clorofila en el sector sur del ecosistema costero bonaerense: utilizamos la concentración de clorofila como proxy para evaluar la productividad de aguas costeras del sur bonaerense y su relación con los recursos para la pesca artesanal.
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Teledetección cuantitativa: desarrollamos herramientas de teledetección cuantitativa para el monitoreo de funciones ecosistémicas en ambientes terrestres y marino-costeros del sur bonaerense.
- Celleri C, Pratolongo PD, Arena M. (2021) Spatial and temporal patterns of soil salinization in shallow groundwater environments of the Bahía Blanca Estuary: Influence of topography and land use. Land Degradation and Development. DOI: 10.1002/ldr.4162.
- Delgado AL, Pratolongo PD, Dogliotti, AI, Arena M, Celleri C, Cardona JEG, Martinez A. (2021) Evaluation of modis-aqua and olci chlorophyll-a products in contrasting waters of the southwestern Atlantic ocean Ocean and Coastal Research 69: e21007.
- Loydi A, Collins S. (2021) Extreme drought has limited effects on soil seed bank composition in desert grasslands. Journal of Vegetation Science 32: e1308.
- García A, Loydi A, Distel RA. (2021) Temporal and spatial variation in the soil seed bank of Nassella trichotoma (serrated tussock) in its native range. Australian Journal of Botany 69: 45-51.
- Puthod G, Loydi A, García A, Distel RA. (2020). Enhancement of late successional grasses by disturbance and seed addition in degraded dryland pampas of Argentina. Arid Land Research and Management 34: 445-459.
- García, A., Scarfó, M.C., Loydi, A. & Distel, R.A. (2020). Effect of neighbor vegetation identity and defoliation severity on recruitment of palatable and unpalatable grasses. Austral Ecology 45, 70-78.
- Loydi A., García, A. & Funk. F.A. (2020). Vegetation recovery after fire in mountain grasslands of Argentina. Journal of Mountain Science 17, 373-383.
- Shi, B., Pratolongo, P., Du, Y., Li, J., Yang, S., Wuf, J., Xu, K., Wang, Y. (2020) Influence of macrobenthos (Meretrix meretrix Linnaeus) on bed erodibility and erosion-accretion processes in intertidal flats within a cultivation zone. Journal of Geophysical Research - Biogeosciences.
- Arena, M., Delgado, A., Celleri, C., Pratolongo, P. (2019) Preliminary assessment of spatial and short-term variability of bio-optical properties in a tidal dominated estuary (Bahía Blanca, Argentina). Regional Studies in Marine Science. doi.org/10.1016/j.rsma.2019.100639.
- Celleri, C., Zapperi, C., González Trilla, G., Pratolongo, P. (2019) Assessing the capability of broadband indices derived from Landsat 8 OLI to monitor above ground biomass and salinity in semiarid saline environments of the Bahía Blanca Estuary, Argentina. International Journal of Remote Sensing 40: 4817 - 4838.
- Delgado, A., Pratolongo, P., Zapperi, G., Dogliotti, A., Guinder, V. (2019) Validation of MODIS-Aqua bio-optical algorithms of phytoplankton absorption coefficient in the optically complex waters of El Rincón (Argentina). Continental Shelf Research 73: 86 - 173.
- Funk, F.A., Loydi, A., Peter, G. & Distel, R.A. (2019). Effect of grazing and drought on seed bank in semi-arid patchy rangelands of northern Patagonia, Argentina. International Journal of Plant Sciences 180, 337-344.
- López, A., Coria, H., Nazareno, M., García, M., Distel, R.A. & Arroquy, J.I. (2019). Effect of type and feeding frequency of high fibrous feeds on intake, total tract digestibility and ruminal fermentation in beef steers fed a high concentrate diet. Animal Production Science 59, 2245-2251.
- Loydi, A. (2019). Vegetation change after grazing exclusion in mountain mesic Pampa grasslands of Argentina: effects on the established vegetation and the soil seed bank. Plant Ecology & Diversity 12, 127-138.
- Ormaechea, S.G., Peri, P.L., Cipriotti, P.A. & Distel, R.A. (2019). El cuadro de pastoreo en los sistemas extensivos de Patagonia Sur. Percepción y manejo del pastoreo. Ecología Austral 29, 174-184.
- Piovan, M.J., Pratolongo, P., Donath, T.W., Loydi, A. & Eckstein, R.L. (2019). Germination response of different halophytes of the coastal zone of Bahía Blanca to changes in osmotic potential, osmotic agents and temperature. International Journal of Plant Sciences 180, 345-355.
- Celleri, C., Zaperi, C., González Trilla, G., Pratolongo, P. (2018) Spatial and temporal patterns of rainfall variability and its relationship with land surface phenology in central east Argentina. International Journal of Climatology 38: 3963-3975 (doi.org/10.1002/joc.5547).
- Distel, R.A. & Villalba, J.J. (2018). Use of unpalatable resources by ruminants: Influence of experience to the biophysical and social environment. Animals 8, 56.
- Funk, F.A., Peter, G., Leder, C.V., Loydi, A., Kröpfl, A.I. & Distel, R.A. (2018). The impact of livestock grazing on the spatial pattern of vegetation in north-eastern Patagonia, Argentina. Plant Ecology and Diversity 11(2), 219-227.
- Koerner, SE, MD Smith, DE Burkepile, N Hanan, ML Avolio, SL Collings, AK Knapp, NP Lemoine, EJ Forrestel, S Eby, DI Thompson, G Aguado-Santacruz, JP Anderson, M Anderson, A Angassa, S Bagchi, ES Bakker, G Bastin, LE Baur, KH Beard, EA Beever, PJ Bohlen, EH Boughton, D Canestro, A Cesa, E Chaneton, J Cheng, CM D'Antonio, C Deleglise, F Dembélé, J Dorrough, D Eldridge, B Fernandez-Going, S Fernández-Lugo, LH Fraser, B Freedman, G Garcia-Salgado, JR Goheen, L Guo, S Husheer, M Karembé, JMH Knops, T Kraaij, A Kulmatiski, M Kytöviita, F Lezama, G Loucougaray, A Loydi, DG Milchunas, S Milton, JW Morgan, C Moxham, KC Nehring, H Olff, TM Palmer, S Rebollo, C Riginos, AC Risch, M Rueda, M Sankaran, T Sasaki, K Schoenecker, NL Schultz, M Schütz, A Schwabe, F Siebert, C Smit, KA Stahlheber, C Storm, DJ Strong, J Su, YV Tiruvaimozhi, C Tyler, J Val, ML Vandegehuchte, KE Veblen, LT Vermeire, D Ward, J Wu, TP Young, Q Yu, TJ Zelikova. (2018). Resolving variation in herbivore effects on plant biodiversity – change in dominance as a global mechanism. Nature Ecology and Evolution 2, 1925-1932.
- Loydi, A., Eckstein, R.L., Gebauer, T., Ludewig, K., Otte, A., Reisdorff, C., Jensen, K., Donath, T.W. (2018). Opposite effects of litter and hemiparasites on a dominant grass under different water regimes and competition levels. Plant Ecology 219, 133-144.
- Paredes, S.S., Stritzler, N.P., Bono, A. & Distel, R.A. (2018). Perennial warm-season grass monocultures and mixtures: biomass production and soil improvement in semiarid and shallow soil conditions. Journal of Arid Environments 154, 82-88.
- Puthod G, A Loydi, RA Distel. (2018). Respuesta productiva de Nassella neesiana a diferentes intensidades de defoliación. Revista Argentina de Producción Animal 38, 63-72.
- Zapperi, G., Pratolongo, P., Piovan, M.J. (2018) Community structure and spatial zonation of benthic macrofauna in mudflats of the Bahía Blanca Estuary, Argentina. Journal of coastal Research 34, 318 – 327.
- Dutto, M.S., Genzano, G., Schiariti, A., Lecanda, J. Hoffmeyer, M., Pratolongo, P. (2017) Medusae and ctenophores from the Bahía Blanca Estuary and neighboring inner shelf (Southwest Atlantic Ocean, Argentina). Marine Biodiversity Records doi: 10.1186/s41200-017-0114-1.
- López, A., Arroquy, J.I., Juárez Sequeira, A.V. , Di Lorenzo, N., Bariionuevo, M.C. & Distel, R.A. (2017). Saline water consumption determines intake and metabolic responses to protein supplementation in lambs consuming low quality forage. Journal of Animal Science 95, 2111-2120.
- Molina, L., Valiñas, M., Pratolongo, P., Elias, R., Perillo, G. (2017) Effect of “whitemouth croaker” (Micropogonias furnieri, Pisces) on the stability of the sediment of salt marshes—an issue to be resolved. Estuaries and Costs 40, 1795–1807.
- Shi, B., Cooper, J., Pratolongo, P., Bouma, T.J., Li, G., Li, P., Wang, Y., Yu, Q. (2017) Intra-tidal erosion and accretion at an exposed intertidal mudflat: the role of very shallow water effects. Journal of Geophysical Research: Oceans 122: 9476–9499.
- Adema, E.O., Butti, R.L., Babinec, F.J. & Distel, R.A. (2016). Comparación entre pastoreo continuo y pastoreo rotativo de un pastizal rolado del centro-oeste de la Provincia de La Pampa. Revista Argentina de Producción Animal 36, 9-17.
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Catanese, F., Fernández, P., Villalba, J.J. & Distel, R.A. (2016). The physiological consequences of ingesting a toxic plant (Diplotaxis tenuifolia) influence subsequent foraging decisions by sheep (Ovis aries). Physiology and Behavior 167, 238-247.
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Catanese, F., Distel, R.A., Fernández, P. & Villalba JJ (2016). How foraging decisions of a small ruminant are influenced by past feeding experiences with a lowquality food. Behavioural Processes 126, 12-20.
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Distel, R.A. (2016). Grazing ecology and the conservation of the Caldena rangelands, Argentina. Journal of Arid Environment 134, 49-55.
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Distel, R.A., Catanese, F. & Villalba, J.J. (2016). Aprendizaje dietario en rumiantes domésticos. Implicancias para la producción animal. Revista Argentina de Producción Animal 36, 1-8.
- Fiori, S., Pratolongo, P., Zalba, S., Carbone, E., Bravo, E. (2016) Spatially explicit risk assessment for coastal invaders under different management. Marine Biology doi: 10.1007/s00227-016-3017-5.
- González Trilla, G., Pratolongo, P., Kandus, P., Beget, M.E., Di Bella, C., Marcovecchio, J. (2016) Relationship between biophysical parameters and synthetic indices derived from hyperspectral field data in a salt marsh from Buenos Aires Province, Argentina. Wetlands 36,185-194.
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López, A., Arroquy, J.I. & Distel, R.A. (2016). Early exposure to and subsequent beef cattle performance with saline water. Livestock Science 185, 68-73.
- Negrin, V., Botté, S., Pratolongo, P. González Trilla, G., Marcovecchio, J. (2016) Ecological processes and biogeochemical cycling in salt marshes: synthesis of studies in the Bahía Blanca estuary (Argentina). Hydrobiologia 774, 217-235.
- Pratolongo, P., Piovan, M.J., Cuadrado, D.G., Gomez, E. (2016) Coastal landscape evolution on the western margin of the Bahía Blanca Estuary (Argentina) mirrors a non-uniform sea-level fall after the mid-Holocene highstand. Geo-Marine Letters doi:10.1007/s00367-016-0480-4.
- Zapperi, G.; Pratolongo, P.; Piovan, M.J.; Marcovecchio, J. (2016) Benthic-pelagic coupling in an intertidal mudflat in the Bahía Blanca Estuary (SW Atlantic). Journal of Coastal Research 32(3): 629-637.
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Catanese, F., Rodríguez Ganduglia, H., Villalba, J.J. & Distel, R.A. (2015). Free availability of high-energy foods led to energy over-ingestion and protein underingestion in choice-fed broilers. Animal Science Journal 86, 1000-1009.
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Catanese, F., Distel, R.A. & Villalba, J.J. (2015). Expression of conditioned preference for low-quality food in sheep is modulated by foraging cost. Animal 9, 1045-1052.
- Guinder, V., Lopez-Abbate, C., Berasategui, A., Negrin, V., Zapperi, V., Pratolongo, P., Fernández-Severini, M., Popovich, C. 2015. Influence of the winter phytoplankton bloom on the settled material in a temperate shallow estuary. Oceanologia 57, 50-60.
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Loydi, A., Donath, T.W., Otte, A., Eckstein, R.L. (2015). Negative and positive interactions among plants: Effect of competitors and litter on seedling emergence and growth of forest and grassland species. Plant Biology 17, 667-675.
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Loydi, A., Donath, T.W., Eckstein, R.L. & Otte, A. (2015). Non-native species litter reduces germination and growth of resident forbs and grasses: allelopathic, osmotic or mechanical effects? Biological Invasions 17, 581-595.
- Negrin, V., Pratolongo, P., de Villalobos, A., Botté, S., Marcovecchio, J. 2015. Biomass, decomposition and nutrient cycling in a SW Atlantic Sarcocornia perennis marsh. Journal of Sea Research 97, 50-55.
- Villalba, J.J., Provenza, F.D., Catanese, F. & Distel, R.A. (2015). Understanding and manipulating choice in grazing animals. Animal Production Science 55, 261-271.
Financiamiento
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Facultad de Agronomía, UBA.
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Universidad Nacional de Río Negro.
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Instituto de Investigación e Ingeniería Ambiental - UNSAM
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INTA
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CONAE
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IAFE-CONICET
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Dr Juan Villalba, Universidad Estatal de Utah, Estados Unidos.
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Dr Scott Collins. Departamento de Biología, Universidad de Nuevo México, Estados Unidos.
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Drought Net - Red internacional de sequía. Universidad de Colorado, Estados Unidos.
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Dr Tobias Donath. Grupo de Ecología del Paisaje, Universidad Christian-Albrechts, Kiel, Alemania.
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Dra Annette Otte. Grupo de Ecología y Planificación del Paisaje, Universidad Justus-Liebig, Giessen, Alemania.
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Dr Robert Frouin. Scripps Institution of Oceanography, UC San Diego, EEUU
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Dr Benwei Shi, East China Normal University, China.
Dra. Paula Pratolongo
Investigadora Independiente, CONICET
Profesora Adjunta, Departamento de Biología, Bioqca. y Fcia. UNS.
Datos académicos CONICET
Integrantes
Dra. Flavia Funk
Licenciada y Doctora en Ciencias Biológicas, UNS.
Investigadora Asistente CONICET.
Ayudante de Docencia A, Departamento de biología, bioqca. y fcia. UNS.
Dra. Carla Celleri
Licenciada en Ciencias Biológicas, UBA
Doctora en Ciencias Biológicas, UNS
Becaria posdoctoral CONICET
Cecilia Scarfó
Licenciada en Ciencias Biológicas, UNS
Becaria Doctoral CONICET
Lic Dana Aylén Rodríguez
Licenciada en Ciencias Biológicas, UNS
Becaria Doctoral CONICET
Lic (Mg) Clara Milano
Licenciada en Ciencias Biológicas, UNS
Magister en Ciencias Agrarias, UNS
Becaria Doctoral CONICET
Lic Maximiliano Arena
Licenciado en Oceanografía, UNS
Becario Doctoral CONICET
Bernardo Deluchi
Técnico Principal CONICET. CERZOS.
Estudiante Ingeniería Agronómica, UNS.