The Ecology and paleoecology of continental aquatic environments (acronym in Spanish: EPAACO) is a newly created (april 2010) multidisciplinary research team, which bring together researchers, postgraduate and undergraduate students, who were individually working in different aspects of ecology and paleoecology of continental aquatic systems. The idea grew out as a way of complementing, linking and integrating the results obtained in each disciplinary area by individual staff members. From this integration on, it was possible to coordinate the multiplicity of indicators and approaches, allowing tracking in an independent way, the variations of different parameters or signals, contributing to more reliable and accurate interpretations, explanations and predictions.

Objectives:
To understand the modern dynamics of continental aquatic systems (shallow lakes) of the Pampa plain.
To reconstruct their environmental evolution during the late Quaternary from a multidisciplinary perspective.

The research lines encompass diverse aspects of the dynamic and functioning of continental aquatic systems (shallow lakes), which are needed to reconstruct their environmental evolution during the Holocene in the Pampa plain. For this purpose, we are working on actualistic models about population dynamic of different biological indicators (they will be the proxies from which past changes will be inferred), their interspecific relationships and with environmental variables. Other key points are to know the processes that promote destruction of the biological remains within sediments (actualistic taphonomy) as well as the environmental dynamic of water bodies and the effect of climate change and human impact on their dynamic. The combination between the ecological and paleolimnological approach, together with the multidisciplinary emphasis, allow obtaining a complete  knowledge of the patterns and processes of ecological changes in shallow lakes, at different temporal scales.

At present, we distinguish the following lines and sub-lines:

Actualistic Taphonomy
Fidelity and preservation of mollusks, ostracods and diatoms. Comparison between lotic and lenthic systems. Determination of the vertical extent and dynamics of the  aphonomically Active Zone (TAZ).

Paleolimnology
Analysis of biological multiproxies (diatoms, pollen, non-pollen palinomorphs, plant macrofossil remains and associated fauna, ostracods, mollusks) in sedimentary records.

Paleoclimatology
Quantitative and/or semi quantitative estimations of temperature and precipitation from Holocene fossil pollen records. These climatic reconstructions constitute an important contribution to the knowledge of the climatic patterns operating at regional scale during the Holocene, and allow the validation of climatic simulations (past-present-future) coming from the general models of atmospheric circulation.

Aerobiology
Study of the composition and dynamic of plant communities from wetlands and record of phenologic variations of key species as response to changes in environmental conditions (human impact and climate change) based on the analysis of atmospheric pollen. Production and transport of pollen belonging to native species with high interest for conservation;
quality of urban air and its relationship to allergies.

Director
Dr. De Francesco Claudio German
Researcher CONICET
Teaching Assistant
Hassan, G. S., De Francesco, C. G., & Díaz, M. C. (2020). Actualistic Taphonomy of Freshwater Diatoms: Implications for the Interpretation of the Holocene Record in Pampean Shallow Lakes. In S. Martínez, A. Rojas, & F. Cabrera (Eds.), Actualistic Taphonomy in South America (pp. 89–109). Springer International Publishing. https://doi.org/10.1007/978-3-030-20625-3_6
De Francesco, C. G., Tietze, E., Cristini, P. A., & Hassan, G. S. (2020). Actualistic Taphonomy of Freshwater Mollusks from the Argentine Pampas: An Overview of Recent Research Progress. In S. Martínez, A. Rojas, & F. Cabrera (Eds.), Actualistic Taphonomy in South America (pp. 69–88). Springer International Publishing. https://doi.org/10.1007/978-3-030-20625-3_5
Cristini, P. A., & De Francesco, C. G. (2019). Taphonomic field experiment in a freshwater shallow lake: alteration of gastropod shells below the sediment–water interface. Journal of Molluscan Studies, 85(4), 403–412. https://doi.org/10.1093/mollus/eyz026
Mehl, A. E., Rojo, L., De Francesco, C. G., Cerdeño, E., & Forasiepi, A. M. (2019). El Pleistoceno de Mendoza: una síntesis geológica y paleontológica. Opera lilloana, 52, 537–573.
Hassan, G. S., Rojas, L. A., & De Francesco, C. G. (2018). Incorporating taphonomy into community-based paleoenvironmental reconstructions: can diatom preservation discriminate among shallow lake sub-environments? Palaios, 33(8), 376–392. https://doi.org/10.2110/palo.2017.111
Cristini, P. A., Tietze, E., De Francesco, C. G., & Martínez, D. (2017). Water geochemistry of shallow lakes from the southeastern Pampa plain, Argentina and their implications on mollusk shells preservation. Science of The Total Environment, 603–604, 155–166. https://doi.org/10.1016/j.scitotenv.2017.06.043
Cristini, P. A., & De Francesco, C. G. (2017). Molluscan taphonomic patterns below the sediment-water interface in freshwater shallow lakes from the Southeastern Pampa plain, Argentina. Palaios, 32(8), 528–542. https://doi.org/10.2110/palo.2016.081
Hassan, G. S., Tietze, E., Cristini, P. A., & De Francesco, C. G. (2014). Differential preservation of freshwater diatoms and mollusks in late Holocene sediments: paleoenvironmental implications. Palaios, 29(12), 612–623.
Tietze, E., & De Francesco, C. G. (2014). Taphonomic differences in molluscan shell preservation in freshwater environments from the southeastern Pampas, Argentina. Palaios, 29(10), 501–511. https://www.bioone.org/doi/full/10.2110/palo.2014.019
De Francesco, C. G., Tietze, E., & Cristini, P. A. (2013). Mollusk successions of Holocene shallow-lake deposits from the southeastern Pampa plain, Argentina. Palaios, 28(12), 851–862. https://www.bioone.org/doi/full/10.2110/palo.2013.100
Navarro, D., Rojo, L., D., De Francesco, C. G., & Hassan, G. S. (2012). Paleoecología y reconstrucciones paleoambientales en mendoza durante el Holoceno. In G. A. Neme & A. Gil (Eds.), Paleoecología humana en el sur de mendoza: Perspectivas arqueológicas (pp. 17–56). Sociedad Argentina de Antropología.
Tietze, E., & De Francesco, C. G. (2012). Compositional fidelity of subfossil mollusk assemblages in streams and lakes of the southeastern Pampas, Argentina. Palaios, 27(6), 401–413. https://www.bioone.org/doi/full/10.2110/palo.2011.p11-124r
De Francesco, C. G., & Blasi, A. M. (2012). Redescripción y significado paleoambiental de Heleobia ameghini (Doering, 1884) (Gastropoda: Rissooidea) en el pleistoceno tardío de la provincia de Buenos Aires, Argentina. Ameghiniana, 49(1), 17–25. http://www.bioone.org/doi/abs/10.5710/AMGH.v49i1(311)
Cristini, P. A., & De Francesco, C. G. (2012). Análisis tafonómico de moluscos por debajo de la interfase agua-sedimento en la laguna Nahuel Rucá (provincia de Buenos Aires, Argentina). Ameghiniana, 49(4), 594–605. https://www.bioone.org/doi/full/10.5710/AMGH.1.12.2012.352
Neme, G. A., Gil, A. F., Garvey, R., Llano, C. L., Zangrando, A., Franchetti, F., De Francesco, C. G., & Michieli, C. T. (2011). El registro arqueológico de la Gruta de El Manzano y sus implicancias para la arqueología de Nordpatagonia. Magallania (Punta Arenas), 39(2), 243–265. http://www.scielo.cl/scielo.php?pid=S0718-22442011000200017&script=sci_arttext&tlng=en
Co-Director
Dra. Stutz Silvina Maria
Researcher CONICET
Professor
Sánchez Vuichard, G., Stutz, S., Tonello, M. S., Navarro, D., Schmelz, M., & Fontana, S. L. (2021). Structure and dynamics of a Pampa plain, (Argentina) shallow lake over the last 600 years. Journal of Paleolimnology, 66, 141–155. https://doi.org/10.1007/s10933-021-00194-w
Messineo, P. G., Tonello, M. S., Stutz, S., Tripaldi, A., Scheifler, N., Pal, N., Sánchez Vuichard, G., & Navarro, D. (2019). Human occupation strategies and related environmental-climate during the middle and late Holocene in central Pampas of Argentina. The Holocene, 29(2), 244–261. https://doi.org/10.1177/0959683618810407
Inda, H., García-Rodríguez, F., del Puerto, L., Stutz, S., Figueira, R. C. L., de Lima Ferreira, P. A., & Mazzeo, N. (2016). Discriminating between natural and human-induced shifts in a shallow coastal lagoon: A multidisciplinary approach. Anthropocene, 16, 1–15.
Stutz, S., Tonello, M. S., González-Sagrario, M. de los Á., Navarro, D., & Fontana, S. L. (2014). Historia ambiental de los lagos someros de la llanura Pampeana (Argentina) desde el Holoceno medio: Inferencias paleoclimáticas. Latin American Journal of Sedimentology and Basin Analysis, 21(2), 119–138. http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-49792014000200004
Piovano, E. L., Córdoba, F. E., & Stutz, S. (2014). Limnogeology in Southern South America: an overview. Latin American Journal of Sedimentology and Basin Analysis, 21(2), 65–75. http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-49792014000200001
Masciadri, S., Stutz, S., & García-Rodríguez, F. (2013). Modern pollen–vegetation relationship of plant communities in the Uruguayan Atlantic coast. Brazilian Journal of Botany, 36(1), 31–44.
Researchers
Dra. Ferrero Laura
Researcher UNMDP
Professor
Marquez, M., Ferrero, L., & Cusminsky, G. (2016). Holocene palaeoenvironmental evolution of the pampa coastal plain (Argentina) based on calcareous microfossils. Revista Brasileira de Paleontologia, 19, 25–40.
González-Sagrario, M. de los Á., & Ferrero, L. (2013). The trophic role of Cyphocharax voga (Hensel 1869) according to foraging area and diet analysis in turbid shallow lakes. Fundamental and Applied Limnology, 183(1), 75–88. http://www.ingentaconnect.com/content/schweiz/fal/2013/00000183/00000001/art00007
Dra. Hassan Gabriela Susana
Researcher CONICET
Teaching Assistant
Hassan, G. S. (2020). Advances in South American Micropaleontology. Selected Papers of the 11th Argentine Paleontological Congress. Cusminsky, G.c., Bernasconi, E., and Concheyro, G.a. (eds.). Springer Earth System Sciences, Isbn 978-3-030-02119-1 (ebook), 229 Pp. Ameghiniana, 57(6), 625–626. https://ameghiniana.org.ar/index.php/ameghiniana/article/view/3419
Hassan, G. S., De Francesco, C. G., & Díaz, M. C. (2020). Actualistic Taphonomy of Freshwater Diatoms: Implications for the Interpretation of the Holocene Record in Pampean Shallow Lakes. In S. Martínez, A. Rojas, & F. Cabrera (Eds.), Actualistic Taphonomy in South America (pp. 89–109). Springer International Publishing. https://doi.org/10.1007/978-3-030-20625-3_6
De Francesco, C. G., Tietze, E., Cristini, P. A., & Hassan, G. S. (2020). Actualistic Taphonomy of Freshwater Mollusks from the Argentine Pampas: An Overview of Recent Research Progress. In S. Martínez, A. Rojas, & F. Cabrera (Eds.), Actualistic Taphonomy in South America (pp. 69–88). Springer International Publishing. https://doi.org/10.1007/978-3-030-20625-3_5
Hassan, G. S., Rojas, L. A., & De Francesco, C. G. (2018). Incorporating taphonomy into community-based paleoenvironmental reconstructions: can diatom preservation discriminate among shallow lake sub-environments? Palaios, 33(8), 376–392. https://doi.org/10.2110/palo.2017.111
Hassan, G. S. (2018). Within versus between-lake variability of sedimentary diatoms: the role of sampling effort in capturing assemblage composition in environmentally heterogeneous shallow lakes. Journal of Paleolimnology, 60(4), 525–541. https://doi.org/10.1007/s10933-018-0038-8
Hassan, G. S. (2015). On the benefits of being redundant: low compositional fidelity of diatom death assemblages does not hamper the preservation of environmental gradients in shallow lakes. Paleobiology, 41(1), 154–173. http://www.bioone.org/doi/abs/10.1017/pab.2014.10
Hassan, G. S., Tietze, E., Cristini, P. A., & De Francesco, C. G. (2014). Differential preservation of freshwater diatoms and mollusks in late Holocene sediments: paleoenvironmental implications. Palaios, 29(12), 612–623.
Martínez, G., Mazzanti, D. L., Quintana, C., Zucol, A. F., Colobig, M., Hassan, G. S., Brea, M., & Passeggi, E. (2013). Geoarchaeological and Paleoenvironmental context of the human settlement in the Eastern Tandilia Range, Argentina. Quaternary International, 299, 23–37. http://www.sciencedirect.com/science/article/pii/S104061821203399X
Navarro, D., Rojo, L., D., De Francesco, C. G., & Hassan, G. S. (2012). Paleoecología y reconstrucciones paleoambientales en mendoza durante el Holoceno. In G. A. Neme & A. Gil (Eds.), Paleoecología humana en el sur de mendoza: Perspectivas arqueológicas (pp. 17–56). Sociedad Argentina de Antropología.
Hassan, G. S., Espinosa, M. A., & Isla, F. I. (2011). Fluctuaciones de salinidad durante el Holoceno en la laguna costera de Mar Chiquita (Provincia de Buenos Aires): una aproximación cuantitativa basada en diatomeas. Ameghiniana, 48(4), 496–507. http://www.bioone.org/doi/abs/10.5710/AMGH.v48i4(326)
Latorre Fabiana
Researcher CONICET
Professor
Teaching Assistant
Gauchat, M. E., Aguirre, N. C., Latorre, F., Inza, M. V., Belaber, E. C., Zelener, N., Torales, S. L., Fornes, L. F., Pinazo, M. A., Rotundo, C. A., Fahler, J. C., Pahr, N. M., & Fassola, H. E. (2021). Paraná Pine (Araucaria angustifolia): The Most Planted Native Forest Tree Species in Argentina. In M. J. Pastorino & P. Marchelli (Eds.), Low Intensity Breeding of Native Forest Trees in Argentina: Genetic Basis for their Domestication and Conservation (pp. 395–426). Springer International Publishing. https://doi.org/10.1007/978-3-030-56462-9_15
Latorre, F., Rotundo, C., Abud Sierra, M. L., & Fassola, H. (2020). Daily, seasonal, and interannual variability of airborne pollen of Araucaria angustifolia growing in the subtropical area of Argentina. Aerobiologia, 36(2), 277–290. https://doi.org/10.1007/s10453-020-09626-y
Sierra, L. A., & Latorre, F. (2020). Diversidad, abundancia y estacionalidad del polen alergénico en la atmósfera de Mar del Plata (Argentina). Boletín de la Sociedad Argentina de Botánica, 55(1), 3–21. https://doi.org/10.31055/1851.2372.v55.n1.23094
Latorre, F., Alarcón, P., & Fassola, H. (2013). Temporal and spatial distribution of Araucaria angustifolia (araucariaceae) pollen in Misiones, Argentina. Boletín de La Sociedad Argentina de Botánica, 48(3–4), 453–464. https://revistas.unc.edu.ar/index.php/BSAB/article/view/7552
Latorre, F., Alarcón, P., & Fassola, H. (2013). Distribución temporal y espacial del polen de Araucaria angustifolia (Araucariaceae) en Misiones, Argentina. Boletín de La Sociedad Argentina de Botánica, 48(3–4), 453–464. http://www.scielo.org.ar/scielo.php?pid=S1851-23722013000300008&script=sci_arttext&tlng=en
Dra. Tonello Marcela Sandra
Researcher CONICET
Teaching Assistant
Sánchez Vuichard, G., Stutz, S., Tonello, M. S., Navarro, D., Schmelz, M., & Fontana, S. L. (2021). Structure and dynamics of a Pampa plain, (Argentina) shallow lake over the last 600 years. Journal of Paleolimnology, 66, 141–155. https://doi.org/10.1007/s10933-021-00194-w
Sottile, G. D., Echeverría, M. E., Tonello, M. S., Marcos, M. A., Bamonte, F. P., Rayó, C., & Mancini, M. V. (2020). Dynamics of the Andean vegetation of lake Argentino (50° S, 72° W) since glaciers retreat (ca. 12,000 cal years BP). Andean Geology, 47(3), 599–627. https://doi.org/10.5027/andgeoV47n3-3303
Berman, A. L., Silvestri, G. E., & Tonello, M. S. (2020). Paleoclimatic context of projected future warming in southern South America. Theoretical and Applied Climatology, 141(1), 173–181. https://doi.org/10.1007/s00704-020-03196-2
Oca, F. M. D., Tonello, M. S., Massaferro, J., Plastani, M. S., & Laprida, C. (2020). The chironomids (diptera: chironomidae) of shallow lakes of the humid pampa region, Argentina: an approach to paleoproductivity reconstruction. PALAIOS, 35(4), 191–200. https://doi.org/10.2110/palo.2019.071
Messineo, P. G., Tonello, M. S., Stutz, S., Tripaldi, A., Scheifler, N., Pal, N., Sánchez Vuichard, G., & Navarro, D. (2019). Human occupation strategies and related environmental-climate during the middle and late Holocene in central Pampas of Argentina. The Holocene, 29(2), 244–261. https://doi.org/10.1177/0959683618810407
Berman, A. L., Silvestri, G. E., & Tonello, M. S. (2018). On the differences between Last Glacial Maximum and Mid-Holocene climates in southern South America simulated by PMIP3 models. Quaternary Science Reviews, 185, 113–121. https://doi.org/10.1016/j.quascirev.2018.02.003
Berman, A. L., Silvestri, G. E., Rojas, M., & Tonello, M. S. (2017). Accelerated greenhouse gases versus slow insolation forcing induced climate changes in southern South America since the Mid-Holocene. Climate Dynamics, 48(1–2), 387–404.
Berman, A. L., Silvestri, G. E., & Tonello, M. S. (2016). Differences between Last Glacial Maximum and present-day temperature and precipitation in southern South America. Quaternary Science Reviews, 150, 221–233.
Stutz, S., Tonello, M. S., González-Sagrario, M. de los Á., Navarro, D., & Fontana, S. L. (2014). Historia ambiental de los lagos someros de la llanura Pampeana (Argentina) desde el Holoceno medio: Inferencias paleoclimáticas. Latin American Journal of Sedimentology and Basin Analysis, 21(2), 119–138. http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-49792014000200004
Dra. Addino Mariana Del Sol
Researcher CONICET
Teaching Assistant
Addino, M. S., Alvarez, M. F., Brey, T., Iribarne, O., & Lomovasky, B. J. (2019). Growth changes of the stout razor clam Tagelus plebeius (Lightfoot, 1786) under different salinities in SW Atlantic estuaries. Journal of Sea Research, 146, 14–23. https://doi.org/10.1016/j.seares.2019.01.005
Montemayor, D. I., Canepuccia, A. D., Farina, J., Addino, M., Valiñas, M., & Iribarne, O. O. (2019). Effects of Spartina Wrack on Surface-Active Arthropod Assemblage Under Different Environmental Contexts in Southwest Atlantic Salt Marshes. Estuaries and Coasts, 42(4), 1104–1126. https://doi.org/10.1007/s12237-018-00509-7
Alvarez, M. F., Cielo Bazterrica, M., Fanjul, E., Addino, M. S., Valiñas, M. S., Iribarne, O. O., & Botto, F. (2018). Effects of two estuarine intertidal polychaetes on infaunal assemblages and organic matter under contrasting crab bioturbation activity. Journal of Sea Research, 139, 33–40. https://doi.org/10.1016/j.seares.2018.06.008
Bruschetti, C. M., Addino, M., Luppi, T., & Iribarne, O. (2018). Effects of nutrient enrichment and grazing by an invasive filter feeder on phytoplankton biomass in a South West Atlantic coastal lagoon. Biological Invasions, 20(8), 2245–2256. https://doi.org/10.1007/s10530-018-1699-y
Addino, M., Alvarez, M. F., Iribarne, O., & Lomovasky, B. J. (2016). Interaction between a mobile and a sessile species in SW Atlantic mudflats: Lack of negative effects of the mud crab Cyrtograpsus angulatus Dana, 1851 on filtration rate and growth of the infaunal clam Tagelus plebeius (Lightfoot, 1786). Journal of Experimental Marine Biology and Ecology, 476, 65–71.
Montemayor, D. I., Addino, M., Valiñas, M., Fanjul, M. E., Alvarez, M. F., & Iribarne, O. O. (2015). Biomass dynamics of the two dominant SW Atlantic Spartina species and its implications on the saltmarsh organic matter accumulation/exportation. Aquatic Botany, 120, 201–204. http://www.sciencedirect.com/science/article/pii/S0304377014000886
Fanjul, M. E., Escapa, M., Montemayor, D., Addino, M., Alvarez, M. F., Grela, M. A., & Iribarne, O. (2015). Effect of crab bioturbation on organic matter processing in South West Atlantic intertidal sediments. Journal of Sea Research, 95, 206–216. http://www.sciencedirect.com/science/article/pii/S1385110114001038
Addino, M. S., Montemayor, D. I., Escapa, M., Alvarez, M. F., Valiñas, M. S., Lomovasky, B. J., & Iribarne, O. (2015). Effect of Spartina alterniflora Loisel, 1807 on growth of the stout razor clam Tagelus plebeius (Lightfoot, 1786) in a SW Atlantic estuary. Journal of Experimental Marine Biology and Ecology, 463, 135–142. http://www.sciencedirect.com/science/article/pii/S002209811400313X
Alvarez, M. F., Addino, M., Iribarne, O., & Botto, F. (2015). Combined engineering effects of clams and crabs on infaunal assemblages and food availability in intertidal systems. Marine Ecology Progress Series, 540, 57–71. http://www.int-res.com/abstracts/meps/v540/p57-71/
Lomovasky, B. J., Alvarez, G., Addino, M., Montemayor, D. I., & Iribarne, O. (2014). A new non-indigenous Crassostrea species in Southwest Atlantic salt marshes affects mortality of the cordgrass Spartina alterniflora. Journal of Sea Research, 90, 16–22.
Alvarez, M. F., Montemayor, D. I., Bazterrica, M. C., Addino, M., Fanjul, M. E., Iribarne, O., & Botto, F. (2013). Interaction strength varies in relation to tidal gradient and spatial heterogeneity in an intertidal Southwest Atlantic estuarine food web. Journal of Experimental Marine Biology and Ecology, 449, 154–164. http://www.sciencedirect.com/science/article/pii/S002209811300333X
Alvarez, M. F., Esquius, K. S., Addino, M., Alberti, J., Iribarne, O., & Botto, F. (2013). Cascading top-down effects on estuarine intertidal meiofaunal and algal assemblages. Journal of Experimental Marine Biology and Ecology, 440, 216–224. http://www.sciencedirect.com/science/article/pii/S002209811300004X
Valiñas, M. S., Molina, L. M., Addino, M., Montemayor, D. I., Acha, E. M., & Iribarne, O. O. (2012). Biotic and environmental factors affect Southwest Atlantic saltmarsh use by juvenile fishes. Journal of Sea Research, 68, 49–56. http://www.sciencedirect.com/science/article/pii/S1385110111001602
Graduate Students
Flores Fabio Lucas
Doctoral Fellow CONICET
Cruz‐Motta, J. J., Miloslavich, P., Guerra‐Castro, E., Hernández‐Agreda, A., Herrera, C., Barros, F., Navarrete, S. A., Sepúlveda, R. D., Glasby, T. M., Bigatti, G., Cardenas‐Calle, M., Carneiro, P. B. M., Carranza, A., Flores, A. A. V., Gil‐Kodaka, P., Gobin, J., Gutiérrez, J. L., Klein, E., Krull, M., … Romero, L. (2020). Latitudinal patterns of species diversity on South American rocky shores: Local processes lead to contrasting trends in regional and local species diversity. Journal of Biogeography, 47(9), 1966–1979. https://doi.org/10.1111/jbi.13869