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Este es el sitio del grupo de Ecología y Sistemas Complejos de la UNGS

Red Trófica de Potter Cove península Antártica simplificada

Leonardo A. Saravia

Professor/Researcher

Universidad Nacional de General Sarmiento

CADIC - CONICET

Bio

I am a Professor/Researcher on Biology and theoretical computational ecology at the Institute of Sciences University of General Sarmiento. My research interests include ecological networks, dynamic models of populations and communities, biodiversity, critical transitions, global forest dynamics, early warnings, deforestations.

Interests

Ecología teórica
Redes (tróficas y no tróficas)
Global forest Fragmentation
R Statistical languaje
Netlogo/GoogleEarthEngine/C++

Education

Licenciatura en Biología, 1995

Universidad de Buenos Aires
PhD in Biology, 2010

Universidad de Buenos Aires

Experience

Investigador/Docente

Universidad Nacional de General Sarmiento

2010-03-01 – Present Buenos Aires, Argentina

Responsibilities include:

Dictar clases de las materias del Área de Biología y Bioinformática
Llevar adelante un linea de investigación del Instituto de Ciencias.

Profesor Adjunto

Universidad Maimonides

2002-03-01 – 2002-11-30 Ciudad de Buenos Aires, Argentina

Dictar clases de la materia Bioinformática para Biólogos

Nosotrxs!

PhD Students

Iara Rodriguez

Becaria de Doctorado (CONICET)

Ecología, Redes tróficas y no tróficas, Caleta Potter, Península Antártica, Canal de Beagle, Ushuaia Argentina, R Statistical languaje

Becario de Doctorado (CONICET)

Ecología del suelo, Redes tróficas y no tróficas, Collembola, Ácaros, Bioindicadores edáficos

Ex Post-docs

Ex-Becaria de Post-Doc (CONICET)

Modelling, Cianobacteria, Experimental ecology, Ecological communities, R Statistical languaje

Recent Posts

What Determines Food Web Structure?

In nature species interact among each other in many ways. The most common and studied interaction is that between a predator and its prey. A food web can be defined as a network of interactions that describes who eats whom in a certain ecosystem and at a certain time of the year.

Tomas I. Marina, Leonardo A. Saravia

Last updated on 2022-02-10 4 min read

What Determines Food Web Structure?

Stochastic Network Interaction Model (SNIM) Tutorial

This is a beautifully simple ecological network model that can simulate predator-prey and competitive multispecies dynamics. This is the B model of the paper 1, I read it long ago and for many years I wanted to make a version of it, finally, I did it.

2020-02-09 4 min read

Stochastic Network Interaction Model

SNIM This is a C++11 implementation of a stochastic multispecies model. The model has multiple applications to investigate the relationship between ecological interactions (competition, predation) and diversity. It involves a discrete definition of individuals belonging to a given set of species.

Last updated on 2020-02-08 1 min read

Stochastic Network Interaction Model

Projects

Productores primarios bentónicos en el ecosistema costero antártico - consecuencias del cambio climático (PICT)

El objetivo general del proyecto es estudiar los efectos del cambio climático sobre algas bentónicas Antárticas.

Productores primarios bentónicos en el ecosistema costero antártico - consecuencias del cambio climático (PICT)

Redes de interacciones Ecologicas, la influencia del cambio global y la degradación del hábitat

La explotación y la degradación de los hábitats naturales junto con el cambio climático producen la pérdida de especies y de servicios ecosistémicos. La manera en que las especies forman redes de interacciones determina su estabilidad y resistencia ante los disturbios. En este proyecto, proponemos estudiar las redes de interacción ecológicas incorporando los distintos tipos de interacción (tróficas, mutualistas y competitivas), los disturbios como el cambio de temperatura y la fragmentación del hábitat, que ensamblan las redes de interacción a diferentes escalas, desde la de comunidades locales a la biogeográfica. Acoplado a esto, investigaremos la fragmentación de uno de los ambientes terrestres más importantes, los bosques, a escala global, para producir señales de alerta temprana con respecto a la pérdida de biodiversidad.

Redes de interacciones Ecologicas, la influencia del cambio global y la degradación del hábitat

Recent & Upcoming Talks

Global Tipping Points Forest Wildfires

2022-01-30 7:53 PM — 7:53 PM

Featured Publications

Leonardo A. Saravia, Tomas I. Marina, Nadiah P. Kristensen, Marleen De Troch, Fernando R. Momo

December 2021 Journal of Animal Ecology

Ecological network assembly: how the regional metaweb influences local food webs

Ecological network assembly: how the regional metaweb influences local food webs

Leonardo A Saravia, Santiago Doyle, Ben Bond-Lamberty

January 2018

Power Laws and Critical Fragmentation in Global Forests

Power Laws and Critical Fragmentation in Global Forests

Leonardo A. Saravia

January 2015

A New Method to Analyse Species Abundances in Space Using Generalized Dimensions

A New Method to Analyse Species Abundances in Space Using Generalized Dimensions

Recent Publications

Quickly discover relevant content by filtering publications.

Leonardo A. Saravia, Ben Bond-Lamberty, Samir Suweis (2022). Amazon Fire Regimes under Climate Change Scenarios. EcoEvoRxiv.

Funes Manuela, Leonardo A. Saravia, Georgina Cordone, Oscar Iribarne, David Galvan (2022). Network Analysis Can Detect Changes In Food Web Stability Produced By Bottom Trawl Fishery In Patagonia. In Review - Scientific Reports.

PDF Project DOI

Iara Rodriguez, Tomas I. Marina, Irene Ruth Schloss, Leonardo A. Saravia (2022). Marine food webs are more complex but less stable in sub-Antarctic (Beagle Channel, Argentina) than in Antarctic (Potter Cove, Antarctic Peninsula) regions. Marine Environmental Research.

PDF Cite Project DOI

Leonardo A. Saravia, Tomas I. Marina, Nadiah P. Kristensen, Marleen De Troch, Fernando R. Momo (2021). Ecological network assembly: how the regional metaweb influences local food webs. Journal of Animal Ecology.

PDF Cite Project Slides DOI

Giorgio Nicoletti, Leonardo A. Saravia, Fernando Momo, Amos Maritan, Samir Suweis (2021). The emergence of scale-free fires in Australia. arXiv:2110.10014 [cond-mat].

María L. Quartino, Leonardo A. Saravia, Gabriela L. Campana, Dolores Deregibus, Carolina V. Matula, Alicia L. Boraso, Fernando R. Momo (2020). Production and Biomass of Seaweeds in Newly Ice-Free Areas: Implications for Coastal Processes in a Changing Antarctic Environment. Springer.

Code Dataset Project Poster Video Source Document Book Link

Leonardo A. Saravia, Fernando R. Momo (2018). Biodiversity Collapse and Early Warning Indicators in a Spatial Phase Transition between Neutral and Niche Communities. Blackwell Publishing Ltd.

Tomas I. Marina, Vanesa Salinas, Georgina Cordone, Gabriela Campana, Eugenia Moreira, Dolores Deregibus, Luciana Torre, Ricardo Sahade, Marcos Tatián, Esteban Barrera Oro, Marleen De Troch, Santiago Doyle, María Liliana Quartino, Leonardo A Saravia, Fernando R Momo (2018). The Food Web of Potter Cove (Antarctica): Complexity, Structure and Function. Estuarine, Coastal and Shelf Science.

Tomas I. Marina, Leonardo A. Saravia, Georgina Cordone, Vanesa Salinas, Santiago R Doyle, Fernando R Momo (2018). Architecture of Marine Food Webs: To Be or Not Be a ‘Small-World’. PLoS ONE.

Georgina Cordone, Tomás I Marina, Vanesa Salinas, Santiago R Doyle, Leonardo A Saravia, Fernando R Momo (2018). Effects of Macroalgae Loss in an Antarctic Marine Food Web: Applying Extinction Thresholds to Food Web Studies.

Leonardo A Saravia, Santiago Doyle, Ben Bond-Lamberty (2018). Power Laws and Critical Fragmentation in Global Forests.

PDF Cite Project DOI

María Laura Marcías, Dolores Deregibus, Leonardo Saravia, Gabriela Laura Campana, María Liliana Quartino (2016). Life between Tides: Spatial and Temporal Variations of an Intertidal Macroalgal Community at Potter Peninsula, South Shetland Islands, Antarctica.

L B Falco, R Sandler, F Momo, C Di Ciocco, L Saravia, C Coviella (2015). Earthworm Assemblages in Different Intensity of Agricultural Uses and Their Relation to Edaphic Variables.

F Pasotti, L. A.º Saravia, M. De Troch, M. S. Tarantelli, R. Sahade, A. Vanreusel (2015). Benthic Trophic Interactions in an Antarctic Shallow Water Ecosystem Affected by Recent Glacier Retreat.

Leonardo A. Saravia (2015). A New Method to Analyse Species Abundances in Space Using Generalized Dimensions.

Leonardo A Saravia (2014). mfSBA: Multifractal Analysis of Spatial Patterns in Ecological Communities [v2; Ref Status: Indexed, http://f1000r.es/347].

I. R. Schloss, A. Wasilowska, D. Dumont, G. O. Almandoz, M. P. Hernando, C.-A. Michaud-Tremblay, L. A. Saravia, M. Rzepecki, P. Monien, D. Monien, E. E. Kopczyńska, A. V. Bers, G. A. Ferreyra (2014). On the Phytoplankton Bloom in Coastal Waters of Southern King George Island (Antarctica) in January 2010: An Exceptional Feature?.

Leonardo Ariel Saravia, Adonis Giorgi, Fernando Momo (2012). Multifractal Growth in Periphyton Communities.

Leonardo A. Saravia, Adonis Giorgi, Fernando R. Momo (2012). Multifractal Spatial Patterns and Diversity in an Ecological Succession.

Leonardo Ariel Saravia (2009). Algunas Cuestiones Sobre El Espacio En Ecología. Modelos, Datos y Aplicaciones.

Leonardo A. Saravia, G. D. Ruxton, C. E. Coviella (2000). The Importance of Transients' Dynamics in Spatially Extended Populations..

Leonardo A Saravia, Adonis Giorgi, Fernando R Momo (1999). A Photographic Method for Estimating Chlorophyll in Periphyton on Artificial Substrata. Springer.

L A Saravia, F Momo, Lucila D Boffi Lissin (1998). Modelling Periphyton Dynamics in Running Water. Elsevier.

Graeme D Ruxton, Leonardo A Saravia (1998). The Need for Biological Realism in the Updating of Cellular Automata Models.

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