A5029444415- Botanical Research and Applications
- Plant Diversity and Evolution
- Botany, Ecology, and Taxonomy Studies
- Plant Taxonomy and Phylogenetics
- Plant and animal studies
- Ecology and Vegetation Dynamics Studies
- Mediterranean and Iberian flora and fauna
- African Botany and Ecology Studies
- Banana Cultivation and Research
- Plant Parasitism and Resistance
- Botany and Geology in Latin America and Caribbean
- Biological Control of Invasive Species
- Agroforestry and silvopastoral systems
- Phytochemistry Medicinal Plant Applications
- Bioenergy crop production and management
- Plant tissue culture and regeneration
- Legume Nitrogen Fixing Symbiosis
- Forest ecology and management
- Plant and soil sciences
- Seed and Plant Biochemistry
- Indigenous Cultures and History
- Biofuel production and bioconversion
- Phytochemistry and Biological Activities
- Plant and Fungal Species Descriptions
- Soil Management and Crop Yield
National University of Rosario
2012-2024
International Union for Conservation of Nature
2021-2023
Instituto de Investigaciones en Ciencias Agrarias de Rosario
2013-2023
Universidad Nacional de Asunción
2023
International Union for Conservation of Nature (United Kingdom)
2019
International Union for Conservation of Nature (Bangladesh)
2018
Consejo Nacional de Investigaciones Científicas y Técnicas
2016-2017
Seasonally dry tropical forests are distributed across Latin America and the Caribbean highly threatened, with less than 10% of their original extent remaining in many countries. Using 835 inventories covering 4660 species woody plants, we show marked floristic turnover among regions, which may be higher other neotropical biomes, such as savanna. Such high indicates that numerous conservation areas countries will needed to protect full diversity forests. Our results provide a scientific...
There are numerous maps of the spontaneous vegetation Argentina. However, a country-level map with enough detail to discriminate units within phytogeographic provinces described by Cabrera (1976) is lacking. We analyzed descriptions published in recent decades, special attention those that produced physiognomic-floristic maps. As result this analysis, here we present Argentina shows heterogeneity provinces. The has 50 as subdivisions ecotone and early described, brief description each...
Morphological studies on Celtis over the last 50 years shown that pyrenes contain specific characters useful for delimitation of its species. Taxonomic revisions groups in this genus, however, ignored pyrenes, leading to recognition highly variable species complexes. In study, we reexamine one such groups, C. iguanaea complex, evaluate taxonomy. This taxonomic group is widely distributed Neotropical region and was previously treated as a single Numerous species-level synonyms have been used....
The Pleistocene Arc Theory (PAT) suggests that present-day disjunct fragments of dry forests in central tropical South America give evidence a previously more continuous distribution during the has been disrupted by dry-cold vs. humid-warm climatic cycles. This extends from NE Brazil to Argentina and eastern Paraguay, through Chiquitanía NW SW Bolivia into inter-Andean valleys Peru Ecuador, with intrusions Great Chaco. Seasonally Dry Tropical Forests (SDTFs) are floristically...
Opuntia series Armatae is evaluated considering morphological (vegetative, floral, and carpological) cytogenetical (diploid number, presence of heterochromatin, physical localization ribosomal genes) features to shed light on their systematics evolution. Three complexes (named O. elata, megapotamica, monacantha) are proposed accommodate seven species according the tepal, fruit, stigma, seed aril traits. Additional systematic conclusions include following: (i) stenarthra, assumptionis,...
The Gran Chaco is a wide ecologic-geographic region comprising northern Argentina, western Paraguay, southern Bolivia and the southwestern extreme of Brazil. This exhibits temperatures, annually regular frosts, sedimentary soils; it has been dramatically threatened by agriculture expansion in recent decades. Therefore, increasing knowledge plant diversity critical for conservation purposes. We present Legume checklist ecoregion including status its endemic species. Leguminosae third most...
In preparation for a new Neotropical taxonomic review and global phylogeny focusing on the lineages of Celtis, some nomenclatural changes are needed. Lectotypes designated Celtis alnifolia, C. asperula, brasiliensis, clausseniana, diffusa, morifolia, fluminensis, glycycarpa, hilariana, membranacea, orthacanthos, selloviana Momisia integrifolia, an epitype is asperula. flavovenarum was proposed as name to replace homonym morifolia. For spinosa we provide locality its type.
Panicum prionitis ("paja de techar") tall grasslands are one of the most extensive vegetation types in islands Parana River valley. These communities traditionally burned order to improve its quality forage and animal consumption. Our objective was analyze effect different disturbances along two years: prescribed fire, mowing control using multivariate analyses on variables (abundance-cover, richness, evenness diversity). P. remained as dominant species regardless treatment throughout...
Hybridization plays a fundamental role in plant evolution and diversification, promoting gene flow, morphological novelties, speciation. Here, we integrated fieldwork, collections-based research, observations, molecular systematics, cytogenetic data to investigate the identity of previously unidentified taxon Opuntia (the prickly pear cacti) observed north-east region Argentina, southern South America. Our analyses revealed cytonuclear phylogenetic discordance among nuclear plastid genomes,...
Durante el estudio monográfico del género Schinopsis (Anacardiaceae) se realizó una revisión nomenclatural de sus especies y sinónimos. Se lectotipifican los nombres brasiliensis, S. brasiliensis var. glabra, heterophylla, marginata peruviana indican algunos casos lectotipificaciones desapercibidas en trabajos previos. designa un epitipo para haenkeana, entidad considerada hasta ahora como taxón dudoso.
The new tree species Schinopsis boqueronensis, endemic to the Bolivian-Paraguayan Chaco, is described, illustrated and compared related heterophylla. A distribution map photographs of are also provided.
En el presente trabajo se registra por primera vez para la flora argentina presencia del pequeño árbol Cynophalla polyantha (Triana & Planch.) Cornejo Iltis (Capparaceae), hallado recientemente en norte de provincia Salta, cercanías frontera con República Bolivia.
Abstract Aim Factors affecting bromeliad distribution depend on the life forms of studied species; some could grow as terrestrial, saxicolous, or epiphytic depending type habitat. We analysed patterns a species in different biogeographic domains and associated them with environmental variables vegetation types. Location Chaquenian, Amazonian, Seasonally Dry Tropical Forest domains; South America. Taxon The tank Aechmea distichantha (Bromeliaceae: Bromelioideae). Methods compiled records...
En el marco del estudio género Opuntia (Cactaceae) para la Argentina se analizaron 10 nombres grupo: anacantha, O. bispinosa, brunnescens, discolor, distans, hildemannii, kiska-loro, pampeana, sulphurea y vulpina.El objetivo fue designación de lectotipos, neotipos o epitipos, cuando fuera necesario; así como también resolver problemas estatus nomenclatural taxonómicos, cada uno los taxones. Se consultaron protólogos todos ejemplares depositados en herbarios, a través visitas personales...
Studies on Celtis over the last 50 years have established role of pyrene in delimitation species. This structure is fundamental importance for understanding genus and has recently changed species delimitation, which was previously very broad vague. Based these new findings, we investigated iguanaea complex. taxonomic group treated as a single species, but it included several species-level synonyms Neotropical region no modern nomenclatural revision yet available. In order to correctly...
Opuntia Ser. Chacopuntiae Oakley & R. Kiesling nov. ser., a new series of the genus Mill. (Opuntieae, Opuntioideae, Cactaceae) from austral South America (Argentina, Bolivia and Paraguay) is described here. The type species quimilo K. Schum. relation with another s. str. Opuntioideae it mentioned.
Se cita por primera vez para la Argentina a Monvillea phatnosperma (K. Schum.) Britton & Rose (Cactaceae), coleccionada en provincia de Formosa. extiende además su área distribución dentro del ‘Gran Chaco’, dado que sólo estaba registrada Paraguay. realizan algunas consideraciones morfológicas, taxonómicas y nomenclaturales sobre misma.
The genus Celtis L. (Cannabaceae) comprises around 73 species distributed in temperate and tropical regions of both hemispheres. Most South American belong to the subgenus Mertensia Planch., they are characterized by showing high morphological plasticity. A recent taxonomic revision this group was carried out with an excessively reductionist criterion regarding number accepted that does not clearly reflect differences among them. In order contribute correct delimitation specific entities, a...