Melina Devercelli

Melina Devercelli
National Scientific and Technical Research Council | conicet · CCT Santa Fe - INALI Instituto Nacional de Limnología

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About

56
Publications
15,444
Reads
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857
Citations
Citations since 2016
24 Research Items
601 Citations
2016201720182019202020212022020406080100120
2016201720182019202020212022020406080100120
2016201720182019202020212022020406080100120
2016201720182019202020212022020406080100120
Introduction
Melina Devercelli currently works at the INALI (CONICET-UNL). Melina does research in Microbial Ecology, particularly phytoplankton, exploring the diversity patterns and the processes that drive community assembly. Some of her current projects are 'MICROBIAL METACOMMUNITIES IN FLUVIAL FLOODPLAIN SYSTEMS' and 'COMMUNITY ASSEMBLY AND INVASIVE SPECIES: UNDERSTANDING PATTERNS AND PROCESSES IN THE FITOPLANCTON AS A STUDY MODEL'.
Additional affiliations
January 2012 - present
Instituto de Nacional de Limnología (CONICET-UNL)
Position
  • Phytoplankton ecology - floodplain rivers
April 2003 - present
Instituto Nacional de Limnología (INALI)
Position
  • PhD

Publications

Publications (56)
Article
Chromophoric dissolved organic matter (CDOM) affects ecological processes in freshwater environments. Few studies assessed its spatial variability and relations with phytoplankton in floodplain rivers. Therefore, these topics were examined in a hydrological connectivity gradient in the Middle Paraná system. Absorption coefficients at 250 and 365 nm...
Article
Full-text available
The biogeography of bacterial communities is a key topic in Microbial Ecology. Regarding continental water, most studies are carried out in the northern hemisphere, leaving a gap on microorganism’s diversity patterns on a global scale. South America harbours approximately one third of the world’s total freshwater resources, and is one of these unde...
Article
The mechanisms behind phytoplankton diversity patterns in natural ecosystems still remain elusive. In two shallow lakes with contrasting river connectivity, we first explored how diversity within each sampling (alfa diversity, α), among samplings (beta diversity, β1), and among hydrological seasons (β2) contributed to the diversity registered throu...
Article
Protists play a fundamental role in all ecosystems, but we are still far from estimating the total diversity of many lineages, in particular in highly diverse environments, such as freshwater. Here, we survey the protist diversity of the Paraná River using metabarcoding, and we applied an approach that includes sequence similarity and phylogeny to...
Preprint
The hydrological regime is the main factor governing the functioning of floodplain rivers. A full comprehension of its dynamic leads to a better understanding of the system’s behaviour and of the proper methods that must be used. We analysed the daily water level of the Paraná River during the last century at three gauge stations using linear and n...
Article
Understanding the mechanisms underlying community assembly helps to define success and susceptibility to biological invasions. Here, we explored phytoplankton community assembly following niche and neutral paradigms and using a trait‐based approach. Under the hypothesis that the morphology‐based functional groups (MBFG) clusters species with simila...
Article
Full-text available
Reynolds Functional Groups (RFG) were designed to represent the diversity of phytoplankton assemblages of freshwater ecosystems and are among the most enduring legacies of C. S. Reynolds to freshwater phytoplankton ecologists. The RFG concept summarises a rich base of knowledge, clustering species according to functional criteria. RFG allow researc...
Article
Full-text available
Little consensus exists on the role of food partitioning in the organization of tadpole assemblages. We studied trophic ecology of syntopic tadpoles through the analysis of gut contents, selectivity, and stable isotopes to assess the occurrence of food partitioning in tadpole assemblages. Tadpoles (n = 194) were collected in three wetlands and corr...
Article
Full-text available
How diversity is structured has been a central goal of microbial ecology. In freshwater ecosystems, selection has been found to be the main driver shaping bacterial communities. However, its relative importance compared with other processes (dispersal, drift, diversification) may depend on spatial heterogeneity and the dispersal rates within a meta...
Preprint
Full-text available
Reynolds Functional Groups (RFG) were designed to represent the diversity of phytoplankton assemblages of freshwater ecosystems and are among the most enduring legacies of C. S. Reynolds to freshwater phytoplankton ecologists. The RFG concept summarises a rich base of knowledge, clustering species according to functional criteria. RFG allow researc...
Article
Ceratium furcoides is an invasive freshwater dinoflagellate that in the last three decades has expanded its geographic distribution in South America, being recently found in Paraná River floodplain (Argentina). Despite growing concern about the presence and impacts of this invader, information regarding genetic diversity in the southern hemisphere...
Article
The underwater light climate has important effects on primary producers. The aim of this research was to evaluate its variability in a turbid river-floodplain system. Photo-synthetically active radiation (PAR) was measured in the Middle Paraná River during different hydrological phases to (a) analyse the photosynthetically active radiation attenuat...
Preprint
Full-text available
Determining which processes take place in the spatial distribution of bacterioplankton metacommunities has been a central goal of microbial ecology. In freshwater ecosystems, selection has been spotted as the main driver shaping bacterial community. However, its relative importance compared with others processes (dispersal, drift, diversification)...
Experiment Findings
The objective was to study the composition of cyanobacteria, the occurrence of blooms and the environmental factors associated with them in lagoons located in the Pampa de las Lagunas region (south de Santa Fe) with agricultural-livestock impact. 23 lagoons were studied that were sampled in the pelagic zone in winter 2009 (IN09), 2010 (IN10), 2011...
Presentation
Full-text available
Las modificaciones antrópicas de los ecosistemas acuáticos favorecen la proliferación de microorganismos invasores que pueden ocasionar alteraciones en la biodiversidad y el funcionamiento ecosistémico. Las especies del dinoflagelado del género Ceratium provenientes del hemisferio norte comenzaron a dispersarse en la década del 90 en América del Su...
Article
Full-text available
Flamingos Phoenicopteridae sp. are gregarious birds that travel long distances between breeding and feeding sites. Here we describe the diet and feeding selectivity of two flamingo species, the Andean Flamingo Phoenicoparrus andinus and Chilean Flamingo Phoenicopterus chilensis, which coexist in a lowland area of Argentina. Environmental characteri...
Article
Urban lakes constitute important recreational areas, but often they are eutrophicated. In this study we discuss the utility of 12 ecological quality metrics to test whether they: (1) can be applied to Neotropical lakes; (2) are sensitive to environmental variations throughout the year; and (3) are affected by heterogeneous spatial distribution of p...
Article
Hydrosedimentological conditions of floodplain rivers can affect nutrient delivery processes. This study evaluated the effects of sedimentological and hydrological regimes on nitrogen (N) speciation and transport in the floodplain–river system of the Middle Paraná. Relations of sedimentological and hydrological regimes, assessed through turbidity a...
Article
Full-text available
The Reynolds Functional Groups (RFG) classification scheme is an informative and widely used method in ecological studies of freshwater phytoplankton. It clusters species with similar traits, as well as common environmental sensitivities and tolerances. However, researchers face the difficulty to classify species into RFG because it relies in exper...
Article
Full-text available
Nutrient fluctuations and climate warming can synergistically affect trophic dynamics in lakes, resulting in enhanced symptoms of eutrophication, thereby potentially counteracting restoration measures. We performed a long-term study (23 years) of zooplankton in Danish Lake Søbygaard, which is in recovery after nutrient loading reduction, but now fa...
Article
Full-text available
Heterocytous cyanobacteria are able to fix nitrogen (in heterocytes) and to produce dormant cells (akinetes). Heterocyte and akinete shape, size, and relative position have taxonomical relevance and possibly ecological value too. We collected—from literature and nature—and compared morphological data on vegetative cells, heterocytes, and akinetes a...
Poster
Full-text available
Pampa de las Lagunas (sur de la provincia de Santa Fe) constituye una de las principales áreas invernales de alimentación de Phoenicoparrus andinus y Phoenicopterus chilensis. El objetivo de este trabajo fue analizar la dieta de ambas especies de flamencos y dilucidar si poseen selectividad trófica. Durante los inviernos de 2011 a 2013, se tomaron...
Article
Full-text available
One of the ongoing debates around metacommunity ecology is to what extent stochastic and deterministic processes act on community assembly. We explored the influence of both determinism, mediated by environmental filters, and stochasticity, mediated by dispersal and ecological drift, on phytoplankton assembly in a floodplain river. A probabilistic...
Article
Full-text available
El mayor desarrollo de Cyanobacteria generado por la eutroficación de ambientes acuáticos produce, además de afloramientos y compuestos con olores y sabores desagradables, liberación de metabolitos tóxicos. El desarrollo excesivo de algas también es problema para aguas que se pueden utilizar para consumo humano o procesos industriales, pero el trat...
Article
Full-text available
Bottom-up and top-down control of phytoplankton is one of the most important hypothesis that explains and predicts the structure of aquatic community. Our aim was to elucidate whether predation and resource limitation can control phytoplankton composition and abundance in a subtropical shallow lake with groundwater connection to the river system. D...
Article
Full-text available
The composition, abundance and functional diversity of zooplankton from the main channel of the Middle Parana River were studied. Monthly samples were collected in both ordinary drought periods (1977, 1978, 1981, 2007) and extraordinary drought ones (La Nina events 1971-1972, 1999-2000). A constant pattern of zooplankton structure was recorded from...
Article
Full-text available
We summarize the information on the phytoplankton of the Paraná River in the Argentine stretch, comparing the density, biomass, functional groups and diversity studies of the mainstem and fl oodplain since the 70's. We described the Yacyretá Reservoir and its impact downriver since it started operating in 1994. The spatio-temporal changes of the ph...
Article
Full-text available
This article summarizes the characteristics of phytoplankton of the Chaco-Pampean Plain between the Pilcomayo River (25º15'S; 57º45'W) and the Lower Salado River (31º39'S; 60º45'W) towards the Paraguay-Paraná system. This subtropical area has a climate gradient from east (wet) to west (arid). Rivers and streams have a seasonal regime, with fl oods...
Article
Full-text available
This article deals with the phytoplankton of the Paraguay and Bermejo rivers, with emphasis on the spatial and temporal patterns of its composition, density, biomass, diversity and community size structure. The phytoplankton of the Paraguay River is characterized by the dominance of small Chlorophyceae and Cryptophyceae, with a gradual increase in...
Article
Full-text available
The effect of different concentrations of the bivalve Limnoperna fortunei on the algal density and structure and its filtration rate was estimated in a mesocosm experiment. The experiment was carried out using containers of 200 L and three treatments: Control (without bivalves), C1 (with 128 individual bivalves), and C2 (with 256 individual bivalve...
Article
Full-text available
Chlorophyll-a (Chl-a) and abiotic variables were measured in the main channel and floodplain waterbodies of the Middle Paraná River to analyse the system dynamics and to assess their spatial variability during different hydrological phases, including an extreme flood. We wanted to test that the flood does not always have a homogenising effect in a...
Poster
Full-text available
Nuestro objetivo fue explorar las relaciones entre las especies más abundantes de diatomeas y factores que condicionan su distribución espacial en 22 ambientes del humedal Pampa de las Lagunas. Analizamos variables ambientales (profundidad, temperatura, pH, conductividad, oxígeno, Secchi, nitrógeno, fósforo total, iones), cuantificamos el fitoplanc...
Article
The phytoplankton structure along the mainstem of the Lower Salado River (Argentina) was analysed in relation to the environmental variables and the influence exerted by the inflowing waters from the Paraná River (via El Vado Stream) and an adjacent floodplain shallow lake, between December 2003 and August 2004. Phytoplankton driving forces were ex...
Article
Full-text available
Food webs in floodplain ecosystems may be based on a variety of aquatic, terrestrial or amphibious food resources. Here, we determined which of the basal resources mostly contribute to the food webs in a floodplain lake of the Middle Paraná River using isotopic composition of C and N (δ13 C and δ15 N) of potential food sources in the Paraná floodpl...
Poster
Full-text available
Las Tunas lagoon was designated a Natural Reserve due to its importance for the conservation of the Andean and southern flamingo species that migrate to these latitudes in the winter season to feed. Phytoplankton constitutes an important fraction of the diet of these birds in an environment where high salinity and its variability are a determining...
Article
Full-text available
In water bodies where cladocerans are typically small or present in low biomass, such as in the tropics and subtropics of South America, rotifers may play a larger role in ecosystem functioning than in temperate lakes. The aim of this study was to analyze the horizontal distribution of richness and abundance of rotifers, their diel distribution pat...
Poster
Full-text available
En el sur de la provincia de Santa Fe se localizan una serie de lagunas saladas que constituyen hábitat cruciales para la migración de especies de flamencos Phoenicopterus chilensis y Phoenicoparrus andinus. Estos pasan los meses de verano en humedales puneños en donde nidifican y arriban en la estación invernal a lagunas santafecinas en donde se a...
Article
Full-text available
The influence of watershed land use on microzooplankton was examined. Six rivers and a shallow lake located in rural (agriculture, livestock) and urban areas were sampled during 4weeks at low water, low temperatures and 3weeks at high water, high temperatures. The major aim of this study was to analyze the composition, richness and abundance of the...
Article
Full-text available
Since the 1990s the Río de La Plata basin has been widely colonized by the invader mollusk Limnoperna fortunei. In spite of a relatively well-developed knowledge of the biology and ecology of this mollusk, not much is known about its natural diet and possible food selectivity. Stomach contents of 120 specimens attached to the roots of Eichhornia cr...
Article
Full-text available
The extreme hydrological fluctuations in the South American Paraná River are unequivocally coupled with El Niño-Southern Oscillation’s (ENSO’s) global climatic phenomenon. In order to identify phytoplankton changes triggered by periods of extraordinary flood (November 1997–1998) and drought (November 1999–2000), the main channel of the Middle stret...
Article
Full-text available
Chlorophyll-a concentration and physico-chemical water quality of water bodies surrounding Santa Fe City (Argentina) were analyzed at 20 sampling sites during different hydroclimatic periods (August-September 2005, March-April 2006). Areas with different water quality were separated by Euclidean cluster analysis, and correlation among both environm...
Chapter
Phytoplankton composition and population density are mainly controlled by water discharge, turbidity, and temperature in most large rivers, as mentioned in early studies (Welch 1952; Hynes 1970). These rivers show a similar phytoplankton community structure characterized by the dominance of centric diatoms, sub- or co-dominance of other taxonomic g...
Article
Full-text available
The Paraná River mainstem was sampled monthly (November 1999–December 2000) in order to analyse phytoplankton structure and dynamics during a period of extreme low water discharge. Physiognomic groups, size fractions, taxonomic groups, species and Reynolds etal. [2002, Journal of Plankton Research, 24: 417–428] functional groups were studied in rel...
Article
Full-text available
The aim of this study was to analyse the digestibility and viability of diatoms following gut passage through Aegla uruguayana. Crabs (n=28) and diatom samples were collected from Las Pencas Stream (Entre Ríos Province, Argentina). Organisms were allowed to graze on the source, then they were placed in aquaria to defecate. Samples of faecal and sou...

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Question (1)
Question
What is the best way to culture Ceratium? I have field samples and it is very difficult to separate from the rest of the algal assemblage.

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Projects (7)
Project
El Proyecto tiene por objetivo general avanzar en la comprensión del funcionamiento de los ríos Paraná y Paraguay mediante una perspectiva integrada de sus dimensiones sociales y ambientales, para diseñar programas de monitoreo y propuestas de acción que contribuyan a la sostenibilidad del socioecosistema en un mundo en cambio.
Archived project
Colin S. Reynolds has been one of the most influential phytoplankton ecologists ever. His passing away in December 2018 deprived many of us as a friend, a colleague and a mentor. Several phytoplankton ecologists felt therefore the need to commemorate the man, and his beautiful visions, who so much contributed to advancing our beloved research field. For these reasons we thought to prepare a Special Issue in Hydrobiologia collecting exclusively review papers on some of the topics that Colin addressed during his professional career. The Guest Editors of this initiative are Judit Padisák, Martin Dokulil, Alex Elliott and Luigi Naselli-Flores. This Project on ResearchGate is intended to disseminate among colleagues the papers which will be included in the Special Issue, and to further honour the memory of Colin S. Reynolds. The papers which are already published online (or have reached the proof stage) are listed in this project, and it will be progressively updated as soon as other papers will be released. The papers already published online or at the proof stage (08 September, 2020) are: Luigi Naselli-Flores, Tamar Zohary, Judit Padisák Life in suspension and its impact on phytoplankton morphology: an homage to Colin S. Reynolds. https://doi.org/10.1007/s10750-020-04217-x https://www.researchgate.net/publication/339834688_Life_in_suspension_and_its_impact_on_phytoplankton_morphology_an_homage_to_Colin_S_Reynolds Tamar Zohary, Giovanna Flaim, Ulrich Sommer Temperature and the size of freshwater phytoplankton. https://doi.org/10.1007/s10750-020-04246-6 https://www.researchgate.net/publication/340740641_Temperature_and_the_size_of_freshwater_phytoplankton Carmen Rojo Community assembly: perspectives from phytoplankton’s studies. https://doi.org/10.1007/s10750-020-04249-3 https://www.researchgate.net/publication/340657843_Community_assembly_perspectives_from_phytoplankton's_studies J. Alex Elliott Modelling lake phytoplankton communities: recent applications of the PROTECH model. https://doi.org/10.1007/s10750-020-04248-4 https://www.researchgate.net/publication/340909738_Modelling_lake_phytoplankton_communities_recent_applications_of_the_PROTECH_model Andras Abonyi, Jean-Pierre Descy, Gábor Borics, Evangelia Smeti From historical backgrounds towards the functional classification of river phytoplankton sensu Colin S. Reynolds: what future merits the approach may hold? https://doi.org/10.1007/s10750-020-04300-3 https://www.researchgate.net/publication/341447193_From_historical_backgrounds_towards_the_functional_classification_of_river_phytoplankton_sensu_Colin_S_Reynolds_what_future_merits_the_approach_may_hold Irina Izaguirre, Luz Allende, M. Romina Schiaffino Phytoplankton in Antarctic lakes: biodiversity and main ecological features. https://doi.org/10.1007/s10750-020-04306-x https://www.researchgate.net/publication/341768545_Phytoplankton_in_Antarctic_lakes_biodiversity_and_main_ecological_features Nico Salmaso, Monica Tolotti Phytoplankton and anthropogenic changes in pelagic environments. https://doi.org/10.1007/s10750-020-04323-w https://www.researchgate.net/publication/342132783_Phytoplankton_and_anthropogenic_changes_in_pelagic_environments Martin T. Dokulil, Kuimei Qian Photosynthesis, carbon acquisition and primary productivity of phytoplankton: a review dedicated to Colin Reynolds https://doi.org/10.1007/s10750-020-04321-y https://www.researchgate.net/publication/342118520_Photosynthesis_carbon_acquisition_and_primary_productivity_of_phytoplankton_a_review_dedicated_to_Colin_Reynolds Gábor Borics, András Abonyi, Nico Salmaso, Robert Ptacnik Freshwater phytoplankton diversity: models, drivers and implications for ecosystem properties https://doi.org/10.1007/s10750-020-04332-9 https://www.researchgate.net/publication/342692098_Freshwater_phytoplankton_diversity_models_drivers_and_implications_for_ecosystem_properties Carla Kruk, Melina Devercelli, Vera L. Huszar Reynolds Functional Groups: a trait-based pathway from patterns to predictions https://doi.org/10.1007/s10750-020-04340-9 https://www.researchgate.net/publication/342873373_Reynolds_Functional_Groups_a_trait-based_pathway_from_patterns_to_predictions Judit Padisák, Luigi Naselli-Flores Phytoplankton in extreme environments: importance and consequences of habitat permanency https://doi.org/10.1007/s10750-020-04353-4 https://www.researchgate.net/publication/343169103_Phytoplankton_in_extreme_environments_importance_and_consequences_of_habitat_permanency Miquel Lürling Grazing resistance in phytoplankton https://doi.org/10.1007/s10750-020-04370-3 https://www.researchgate.net/publication/343599115_Grazing_resistance_in_phytoplankton D. Glen George Top-down versus bottom-up control in planktonic systems: some case studies from the English Lake District https://doi.org/10.1007/s10750-020-04357-0 https://www.researchgate.net/publication/343846826_Top-down_versus_bottom-up_control_in_planktonic_systems_some_case_studies_from_the_English_Lake_District Ingrid Chorus, Elly Spijkerman What Colin Reynolds could tell us about nutrient limitation, N:P ratios and eutrophication control https://doi.org/10.1007/s10750-020-04377-w https://www.researchgate.net/publication/343871678_What_Colin_Reynolds_could_tell_us_about_nutrient_limitation_NP_ratios_and_eutrophication_control Luigi Naselli-Flores, Martin T. Dokulil, J. Alex Elliott, Judit Padisák New, old and evergreen frontiers in freshwater phytoplankton ecology: The legacy of Colin S. Reynolds https://link.springer.com/article/10.1007/s10750-020-04386-9 https://www.researchgate.net/publication/344173397_New_old_and_evergreen_frontiers_in_freshwater_phytoplankton_ecology_the_legacy_of_Colin_S_Reynolds