María Celeste Franceschini- PhD
- Researcher at Centro de Ecologia Aplicada del Litoral
María Celeste Franceschini
- PhD
- Researcher at Centro de Ecologia Aplicada del Litoral
About
82
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Introduction
I am Researcher of CONICET in Argentina, at the “Herbivory and Biological Control in Wetland Lab” (HeCoB). This Lab is part of the “Centro de Ecología Aplicada del Litoral” (CECOAL-CONICET-UNNE), in Corrientes.
I'm interested in the effect of herbivores in Neotropical and Afrotropical wetlands, biological control of aquatic weeds, and pest management in rice paddies (artificial wetlands). I really like working multidisciplinary with students and colleagues, taking new challenges.
Current institution
Additional affiliations
January 2002 - present
Publications
Publications (82)
Rice is a staple food for more than half of the world's population and provides around 20% of the plant-based calories consumed by humans.
Pentatomoids are important in Neotropical rice paddies because they group several main crop pests.
A better understanding of the relationships between these species and crop traits influencing their abundance is...
Host specificity determination of weed biocontrol agents has historically relied on evidence generated through quarantine trials in the region of introduction. These trials could give ‘false positive’ results due to a maximum type I error probability, and where possible, more research under field conditions should be conducted in the region of orig...
Iris pseudacorus L. is an invasive alien species, introduced from Europe to many other countries in the world, being classified as highly invasive in many of them. This species not only causes significant ecological damage in natural environments, diminishing native flora and structurally modifying ecosystems, but can also invade urban and rural ar...
Invasive alien species are one of the main causes of biodiversity loss and ecosystem alteration. Obtaining up-to-date occurrence records and accurate invasion risk maps has become crucial to develop timely and effective management strategies. Unfortunately, gathering and validating distribution data can be labor-intensive and time-consuming, with d...
El cultivo de arroz (Oryza sativa L.) es una de las principales actividades económicas-productivas de la provincia de Corrientes, abarcando grandes áreas debido al clima, suelo y disponibilidad de agua. Dentro de la biodiversidad que albergan las arroceras, los invertebrados son el grupo con mayor representación e importancia debido a que muchas es...
Entomopathogenic fungi (EF) are important biocontrol agents due to their wide host range, easy application, and compatibility with phytosanitary products. Stink bugs (Hemiptera: Pentatomidae) are the most important rice pests in Argentina. Although there is information on the pathogenicity of EF against stink bug pests in rice fields, the natural i...
The study of the seasonal bioecology of pest species is a fundamental issue for the development of integrated pest management schemes in subtropical and temperate rice paddies. In the case of stink bugs (Hemiptera: Pentatomidae), there are reports of several pest species that show seasonal dimorphism as a consequence of the activation/inactivation...
La teoría de competencia aparente explica la competencia indirecta entre dos o más especies “víctimas” que comparten un enemigo natural (EN) generalista, en la cual la mayor abundancia de un huésped, incrementa la abundancia del EN compartido y este incremento afecta en mayor medida a la especie víctima menos abundante. En arroceras del Nordeste de...
Los pentatómidos (Hemiptera: Pentatomidae) son de gran interés para el manejo integrado en el cultivo de arroz (Oryza sativa L.). Este grupo, incluye a las plagas más importantes y difíciles de controlar con técnicas tradicionales, por lo cual las investigaciones suelen estar enfocadas en estas especies. Sin embargo, en las arroceras también se enc...
El cultivo de arroz (Oryza sativa L.) es una de las principales actividades productivas del Nordeste Argentino (NEA). En estas arroceras, las chinches de la panícula del género Oebalus (Hemiptera: Pentatomidae) son plagas importantes porque causan daños al succionar la savia de los granos en desarrollo. Particularmente Oebalus poecilus (Dallas) est...
Las moscas son insectos cosmopolitas pertenecientes al orden Diptera y se encuentran dentro del suborden Brachycera que contiene alrededor de 120 familias. Este grupo, congrega géneros de gran importancia agronómica y ecológica, por contener especies biocontroladoras, polinizadoras, descomponedoras y saprófitas. Pese a su gran relevancia ecológica,...
Iris pseudacorus L. (Iridaceae) (Lirio amarillo) es una Especie Exótica Invasora (EEI) que causa grandes perjuicios ambientales y económicos en humedales de numerosos países del mundo. Desde su detección en Argentina en 1931, su rango de distribución ha ido en aumento, y actualmente la invasión afecta los humedales de al menos ocho provincias. En e...
Currently, the importance of the social dimension within the problem of Invasive Alien Species (IAS) is increasingly recognized, and the inclusion of public opinion and participation is crucial for the success of biocontrol programs. In this study, the social perception of IAS and Biological Control (BC) was comparatively evaluated in two countries...
En la actual crisis de biodiversidad, las Especies Exóticas Invasoras (EEI) son importantes por ser una de las principales causas de desequilibrios ecosistémicos. En este contexto, los estudios que apuntan a la detección temprana, distribución y la generación de mapas de invasiones, resultan fundamentales para los programas de prevención y manejo i...
El cultivo de arroz (Oryza sativa L.) es una de las principales actividades productivas en la provincia de Corrientes y son considerados humedales artificiales. Debido a las grandes áreas que ocupa, las arroceras forman parte del paisaje característico, compartiendo la biota y patrones de funcionamiento con los humedales naturales. Entre la biota,...
The study of factors related to landscape in rice pest studies is important to visualize ecological patterns of these species within the wetland agroecosystem, and help to improve understandings about these patterns. Through several studies that have been conducted in Argentina, we detected the influence of a few local scale factors that would expl...
El objetivo de este trabajo fue analizar comparativamente los ensambles de macroinvertebrados en período de crecimiento y decaimiento de las poblaciones de plantas, utilizando como modelo los invertebrados asociados a dos macrófitas con diferentes bioformas, la sumergida Egeria najas y la arraigada de hojas flotantes Pontederia azurea. Los muestreo...
El cultivo de arroz (Oryza sativa L.) es una de las principales actividades productivas en el Nordeste Argentino, el cual se ve afectado por diferentes plagas que reducen su rendimiento y calidad. En las arroceras del NEA en los últimos años, se ha observado un aumento principalmente de hemípteros pentatómidos, lo que provoca una disminución a gran...
En los ecosistemas de humedales los invertebrados constituyen el nexo entre los productores primarios y los vertebrados siendo fundamentales en los procesos de transferencia de energía, procesos de descomposición y mineralización de nutrientes. Por su parte las macrófitas, además de actuar como productores primarios, desempeñan un rol fundamental e...
We compare invertebrate herbivory upon 13 macrophyte species in freshwater wetland systems located in two global ecozones, the Afrotropics and Neotropics, in the context of biotic and environmental factors influencing these wetlands. The two ecozones are climatically similar regions, with similar water chemistry, but experience contrasting grazing...
The yellow flag, Iris pseudacorus L. (Iridaceae) is an emergent perennial wetland plant native to the Palearctic region and has been dispersed worldwide as an ornamental plant. In the introduced range, it is highly invasive in natural and artificial waterbodies. Currently, this species is difficult to manage and continues to spread, causing signifi...
In this study we assessed the abundance and composition (taxa and feeding guilds) of invertebrate communities occurring on 11 aquatic plant species in Neotropical and Afrotropical wetlands. We tested the hypothesis that invertebrate herbivores form only a minor component of the invertebrate assemblages associated with freshwater macrophytes. The wa...
We compare invertebrate herbivory upon 13 macrophyte species in freshwater wetland systems located in two global ecozones, the Afrotropics and Neotropics, in the context of biotic and environmental factors influencing these wetlands. The two ecozones are climatically similar regions, with similar water chemistry, but experience contrasting grazing...
Tibraca limbativentris is a major stink bug pest in paddies of the Neotropics. In Argentina, its populations overwinter in twelve host‐plant species that occur inside rice fields. However, it's unknown if there are local scale variations in the abundance of T. limbativentris. Likewise, the role of host‐plant community composition (HpCC) as a factor...
Hemiptera is the largest and most diverse order of non-holometabolic insects, with around 100,000 described species of cosmopolitan distribution. This group is characterized by the peculiar pierce-suck mouthparts, which allows a wide trophic diversity. Most species of hemiptera are phytophagous, feeding on all types of plants, from mosses to grasse...
The rice stem stink bug Tibraca limbativentris Stål (Hemiptera: Pentatomidae) is one of the most difficult pests to manage in South American rice paddies. During the rice season (spring-summer), it attacks the crop, producing annual losses of up to 65.2 kg /hectare. Subsequently, during post-harvest (autumn) and winter, this stink bug takes refuge...
Phytophagous hemipterans have been widely studied worldwide because many species have adapted to the consumption of crop plants. Some of these species have progressively become in pests of difficult management. Among the hemipterans considered as pests of economic importance in South American rice fields, we can mention the rice stem stink bug Tibr...
Tibraca limbativentris (Hemiptera: Pentatomidae) is a major pest in neotropical rice agroecosystems. In autumn-winter, this pest takes refuge in rice stubble and in native vegetation, which allows it to re-colonize the crop during the rice growing season. However, it's still unknown whether this vegetation is a pest sink or is actually a natural tr...
Debido al amplio espectro de hospedadores, fácil producción, aplicación y compatibilidad con ciertos fungicidas y fitosanitarios, los hongos entomopatógenos son utilizados alrededor del mundo como micoinsecticidas en diversos cultivos. En la Argentina, estudios previos realizados en arroceras han reportado la patogenicidad de cepas fúngicas nativas...
Local understanding of the winter behavior of pest species such as the rice stem stink bug, Tibraca limbativentris, could help improve management practices. During the winter, T. limbativentris takes refuge in the stubble and in native vegetation adjacent to the plots. In Argentina, this stink bug hibernates in 12 species of native plants that are...
The yellow flag (Iris pseudacorus L.) is an invasive exotic macrophyte that due to its ornamental value has been dispersed from the Palearctic to many countries of the world. In Argentina, it is found in natural, rural, urban and protected areas of different regions with a highly invasive behavior and causing serious damage, by altering the native...
Due to the broad spectrum of hosts, easy production, application and compatibility with certain fungicides and phytosanitary products, entomopathogenic fungi are used around the world as mycoinsecticides in various crops. In Argentina, previous studies in rice fields have reported the pathogenicity of native fungal strains on hemipteran pests. Howe...
Although Argentina treasures a vast area covered by wetlands, many of them are negatively impacted by the presence of Alien Invasive Plants. Iris pseudacorus L. (Iridaceae) (Yellow Flag) is an alien invasive weed that is native to Europe, northern Africa and western Asia, and introduced around the world mainly for its ornamental value. In the intro...
Phytoplankton is an important component of artificial wetlands due to nitrogen-fixing cyanobacteria that can positively affect the vigor of plants and indirectly regulate the abundance of insect pests. The abundance of cyanobacteria in rice fields could be relevant in relation to the pests abundance by the additional contributions of nitrogen. This...
During the last hundred years, plants from Argentina (e.g. water hyacinth and alligator weed) have been accidentally or deliberately transported to other countries where they became invasive weeds. In 1962, the Agriculture Research Service (ARS) of the United States Department of Agriculture established the South American Biological Control Laborat...
Cuernavaca longula is a phloem‐feeding insect associated with the aquatic invasive weed Eichhornia crassipes, and is distributed in South America from Peru to Northern Argentina. It was studied and proposed as a potential biocontrol agent demonstrating its host affinity to water hyacinth through host specificity and damage studies. However, the com...
El “Lirio amarillo”, Iris pseudacorus (Iridadeae) es una planta palustre nativa de Europa, norte de África y oeste de Asia que ha sido dispersada e introducida en diferentes partes del mundo, incluyendo Canadá, Estados Unidos, Argentina, Chile, Uruguay, Australia, Nueva Zelanda y Sudáfrica. En muchas áreas naturales dentro del rango introducido, es...
Rice cultivation emerged in China more than 8000 years ago and is currently one of the crops with the greatest dispersion worldwide. Upon arriving in Argentina, it was initially established in the Province of Misiones around the 17th century. At that time, several herbivorous insects native to the region adapted well to the new resources offered by...
I Meeting about pest management and biological control agents of the Northeast of Argentina and II Workshop of management of weeds and invasive plants: the biological control as an alternative. II Proceedings Book. 63 pages.
In Argentina, 45.19% of rice production is concentrated in the province of Corrientes. However, studies of pests and their natural enemies in these rice fields are scarce, which makes difficult the use of sustainable management options. We studied the hibernating population of the rice stem stink bug Tibraca limbativentris Stål (Hemiptera: Pentatom...
The rice stem bug, Tibraca limbativentris is one of the most important pests of economic importance in Latin America and the most difficult to manage in rice fields of the Northeast of Argentina (NEA). This pest produces annual economic losses, that can reach 65.2 kg/ha in Irrigated rice crops. When rice is absent, this bug takes refuge in native v...
La tucura Cornops aquaticum habita en humedales del Neotrópico desde el sur de México hasta el centro de Argentina y Uruguay, y se asocia frecuentemente con plantas de la familia Pontederiaceae, principalmente el camalote Eichhornia crassipes. Esta planta acuática se ha convertido en la especie plaga más importante de cuerpos de agua naturales y ar...
Impacts and abundance of herbivores on wetlands have long been considered as largely
insignificant. Recent reviews of plant-herbivore interactions in temperate freshwater ecosystems, however, have shown that herbivores (invertebrates and vertebrates) can have quite substantial impacts on aquatic plant populations, though there is much less informat...
We assessed the damage produced by invertebrate herbivores per leaf lamina and per m2 of populations floating-leaf macrophytes of Neotropical wetlands in the growth and decay periods, and assessed if the damage produced by the herbivores should be taken into account in the estimations of plant biomass of these macrophytes or not. The biomass remove...
Eichhornia crassipes and Eichhornia azurea are common invasive aquatic plants in Neotropical wetlands. These plants share species for their biological control, such as curculionoids of the genus Neochetina and the acridium Cornops aquaticum. In this study the herbivory of these specific insects was analyzed in leaves of E. azurea and E. crassipes,...
El rol y el impacto que producen los invertebrados herbívoros sobre la biomasa de las plantas acuáticas en periodos de crecimiento y senescencia son aspectos que han no sido abordados en humedales del Neotrópico en plantas arraigadas de hojas flotantes. Entre las plantas acuáticas, Hydrocleys nymphoides, una planta acuática arraigada de hojas flota...
The study tested the hypothesis that measurement, using multivariate Principal Components Analysis (PCA), of the niche-breadth of river macrophyte species in southern tropical Africa, may predict their larger-scale biogeographical range. Two measures of niche-breadth were calculated for 44 riverine macrophyte species, from 20 families commonly occu...
Los ambientes acuáticosy terrestres están constituidos por una amplia variedad de microorganismos fotosintéticos que habitan en ellos. Los grupos taxonómicos de algas representativos en el plancton de la región son Cyanophyta, Chlorophyta, Euglenophyta y Cryptophyta. En ambientes con aguas temporarias, como los campos de arroz, la ficoflora es poco...
Quantitative comparisons were made of the accuracy of different sampling nets (962 cm2, 707 cm2 and 380 cm2) and two techniques for extracting amphipods from plants. To test the spatial distribution of Hyalella curvispina, eight sites with different environmental conditions were sampled between October and December 1999. Temporal variations in abun...
Biomass of Cornops aquaticum (Orthoptera: Acrididae) in wetlands of Northeast Argentina. The estimation of biomass in insect populations is a key factor to quantify the available resources and energy fluxes in ecosystems food webs. Cornops aquaticum is a common herbivore in Eichhornia plants in wetlands of Northeast Argentina. We aimed to analyse i...
The estimation of biomass in insect populations is a key factor to quantify the available resources and energy fluxes in ecosystems food webs. Cornops aquaticum is a common herbivore in Eichhornia plants in wetlands of Northeast Argentina. We aimed to analyse its biomass variation, related to the different grasshopper age categories populations in...
Cornops aquaticum is a semiaquatic grasshopper that lives in
close association with Pontederiaceae, especially the Eichhornia
genus. In its native distribution range, information is only
available about life history traits of populations from Brazil
and Uruguay. The aim of this work was to assess the number
of juvenile instars and duration of nymph...
The semiaquatic grasshopper Cornops aquaticum Bruner, which is highly specific of Eichhornia crassipes (Pontederiaceae), constitutes one of the most abundant herbivores in the Neotropical wetlands and a possible biological control agent of this weed in South Africa. The aims of this study were 1) to assess the performance of each age category of C....
Cornops aquaticum is a semiaquatic grasshopper that lives in close association with Pontederiaceae, especially the Eichhornia genus. In its native distribution range, information is only available about life history traits of populations from Brazil and Uruguay. The aim of this work was to assess the number of juvenile instars and duration of nymph...
the semiaquatic grasshopper Cornops aquaticum Bruner, which is highly specific of Eichhornia crassipes (Pontederiaceae), constitutes one of the most abundant herbivores in the neotropical wetlands and a possible biological control agent of this weed in south africa. the aims of this study were 1) to assess the performance of each age category of C....
We aimed to evaluate the variation in the age structure of Cornops aquaticum (Bruner) population and its relation to the host plant biomass and the feeding of the different age classes of this grasshopper on the water hyacinth Eichhornia crassipes along 2 years, in a Paraná River floodplain lake (Chaco, Argentina). Individuals of C. aquaticum were...
Neochetina eichhorniae (Coleoptera: Curculionidae) is one herbivore associated to Eichhornia crassipes and E. azurea floating meadows in native areas. The aims of this study were: (1) to evaluate the feeding preference of adults of N. eichhorniae under natural conditions, using native species of macrophytes that coexist with the two host plants, an...
Los humedales Neotropicales se caracterizan por la escasez de especies de mamíferos herbívoros, mientras que en los Paleotropicales los invertebrados herbívoros coexisten con una elevada diversidad de mamíferos herbívoros. Se presentan resultados preliminares de un estudio comparativo de herbivoría que se viene llevando a cabo en humedales de ambas...
Cornops aquaticum is a native Neotropic grasshopper frequently associated with Eichhornia (Pontederiaceae) spp. The aims of this research are: (1) to report the presence of this grasshopper on Oxycaryum cubense (Cyperaceae) in relation to climate conditions and microhabitat structure; and (2) to study and compare survivorship and occurrence of feed...
Cornops aquaticum is a widely distributed semiaquatic grasshopper in the Neotropics. The development, feeding and oviposition of C. aquaticum take place on Pontederiaceae, especially on species of Eichhornia. Several aspects of the feeding of C. aquaticum are studied because is one of the most important herbivores of the highly invasive floating Ei...
The lamina area damaged and biomass per leaves removed by invertebrate herbivores were measured across seasons on water hyacinth, Eichhornia crassipes (Mart.) Solms (Pontederiaceae). The amount of the leaf biomass per meter square lost through herbivory was also assessed in different sampling dates in the plant population. Ten leaves of water hyaci...
We analyzed invertebrate abundance and richness associated with decomposing litter across three riverine wetlands with different
inundation regimes located in the alluvial floodplain of the Paraná River. Three replicate bags were incubated for different
types of leaf litter that were dominant in each wetland for five sampling dates, yielding a tota...
The semi-aquatic grasshopper Cornops aquaticum is native to South America and inhabits lowlands from Southern,Mexico to Central Argentina and Uruguay. It is host-specific to aquatic plants in the genera Eichhornia and Pontederia. A quarantine population has existed in South Africa for 10 y, and it is planned to release it there as a biological cont...
Cornops aquaticum BRUNER is a native Latin-American grasshopper frequently associated with Eichhornia azurea, a characteristic macrophyte of lakes in Argentina and southern Brazil. The aim of this research was to determine the age structure of C. aquaticum populations in a permanent lake site at Corrientes (Argentina), where E. azurea represented t...
Cornops aquaticum BRUNER is a native Latin-American grasshopper frequently associated with Eichhornia spp., a characteristic macrophyte of lakes in Argentina and southern Brazil. The aim of this research was to determine the age structure of C. aquaticum populations in a permanent lake at Comentes (Argentina), where E, azurea represented the host p...
Quantitative comparisons were made of the accuracy of different sampling nets (962 cm2, 707 cm2 and 380 cm2) and two techniques for extracting amphipods from plants. To test the spatial distribution of Hyalella curvispina, eight sites with different environmental conditions were sampled between October and December 1999. Temporal
variations in abun...
Cornops aquaticum is a widely distributed species in Latin America and has a life cycle associated with Eichhornia crassipes (Mart.) Solms and E. azurea (Sw) Kunth (Pontederiaceae). The correct determination of the nymphal stages in C. aquaticum is important to study the population structure in a specific region. The purpose of this study is to eva...
Cornops aquaticum is a widely distributed species in Latin America and has a life cycle associated with Eichhornia crassipes (MART.) SOLMS and E. azurea (SW.) KUNTH (Pontederiaceae). The correct determination of the nymphal stages in C. aquaticum is important to study the population structure in a specific region. The purpose of this study is to ev...
An unusual case of epigeal cryptocotylar germination found in Rollinia salicifolia Schltdl. (Annonaceae) is described and is discussed in relation to the terminology used for germination studies. The terms cryptocotylar and phanerocotylar are used to describe the permanence of cotyledons within the seed coat or endocarp; the terms epigeal and hypog...
Embryos, seeds and fruits of four species of Capparis L. (Capparaceae) from Argentina are described in this paper: C. flexuosa (L.) L. sensu lato, C. retusa Griseb., C. speciosa Griseb. and C. tweediana Eichl. Chlorophyllous embryos are found in C. flexuosa and C. retusa, species with thin seed coats, dehiscent siliques, and somewhat fleshy red end...
El presente trabajo tiene como objetivo dar a conocer la ocurrencia de falso viviparismo en dos especies del género Capparis: C. flexuosa y C. retusa; este caso especial de germinación hasta el momento no había sido registrado para la flora de Argentina. Las observaciones de campo se realizaron en la época de fructificación durante tres años consec...
In this paper embryos and seedlings of six native woody species of Northeast of Argentina are studied: Chrysophyllum marginatum (Hook, et Arn.) Radlk. subsp. marginatum (Sapotaceae), Eugenia uniflora L., Hexachlamys edulis (O. Berg) Kausei et D. Legrand (Myrtaceae), Polygala albicans (A.W. Benn.) Grondona (Polygalaceae), Sapium haematospermun Müll....
En este documento se estudian embriones y plántulas de seis especies leñosas nativas del nordeste de Argentina: Chrysophyllum marginatum (Hook. et Arn.) Radlk. subsp. marginatum (Sapotaceae), Eugenia uniflora L., edulis Hexachlamys (O. Berg) Kausel et D. Legrand (Myrtaceae), Polygala albicans (AW Benn.) Grondona (Polygalaceae), Sapium haematospermu...
In this paper embryos and seedlings of six native woody species of Northeast of Argentina are studied: Chrysophyllum marginatum (Hook. et Arn.) Radlk. subsp. marginatum (Sapotaceae),Eugenia uniflora L., Hexachlamys edulis (O. Berg) Kausel et D. Legrand (Myrtaceae), Polygala albicans (A.W. Benn.) Grondona (Polygalaceae), Sapium haematospermun Müll....
