A5073187820- Freshwater macroinvertebrate diversity and ecology
- Aquatic Invertebrate Ecology and Behavior
- Fish Ecology and Management Studies
- Invertebrate Taxonomy and Ecology
- Lepidoptera: Biology and Taxonomy
- Infectious Diseases and Mycology
- Species Distribution and Climate Change
- Coleoptera Taxonomy and Distribution
- Plant Pathogens and Fungal Diseases
- Hemiptera Insect Studies
- Fish biology, ecology, and behavior
- Insect and Pesticide Research
- Diatoms and Algae Research
- Environmental DNA in Biodiversity Studies
- Diptera species taxonomy and behavior
- Forensic Entomology and Diptera Studies
- Aquatic Ecosystems and Phytoplankton Dynamics
- Protist diversity and phylogeny
- Actinomycetales infections and treatment
- Entomopathogenic Microorganisms in Pest Control
- Plant and Fungal Interactions Research
- Soil and Water Nutrient Dynamics
- Insect symbiosis and bacterial influences
- Morphological variations and asymmetry
- Plant Disease Resistance and Genetics
Universidad Nacional de La Plata
2010-2024
Consejo Nacional de Investigaciones Científicas y Técnicas
2015-2024
Instituto Nacional de Limnología
2012-2024
Comisión de Investigaciones Científicas
2021
Centro Científico Tecnológico - Tucumán
2014
Centro Científico Tecnológico - La Plata
2008-2011
Dirección de Investigación y Desarrollo
2008
Collections of trichomycete symbionts larval aquatic insects in Great Smoky Mountains National Park and vicinity the southern Appalachian region USA resulted finding many taxa Harpellales, including an unusual new monotypic genus, Barbatospora ambicaudata Simuliidae, five species Thaumaleidae or Chironomidae, Harpellomyces montanus, Smittium lentaquaticum, Sm. minutisporum, Stachylina gravicaudata St. stenospora. In addition a Amoebidium (Amoebidiales), A. appalachense, attached to anal...
Macropelopiini is a widely distributed tribe of Tanypodinae, with immature stages inhabiting cool seeps, springs, and small streams. The present study evaluated the monophyly supporting synapomorphies within phylogenetic context for first time Macropelopiini. intergeneric relationships were tested by morphological evidence in cladistic framework, information gained from each homoplastic character was evaluated. corroborated through objective synapomorphy 'outer fringe decreasing base to apex...
Collections of trichomycete symbionts larval aquatic insects in Great Smoky Mountains National Park and vicinity the southern Appalachian region USA resulted finding many taxa Harpellales, including an unusual new monotypic genus, Barbatospora ambicaudata Simuliidae, five species Thaumaleidae or Chironomidae, Harpellomyces montanus, Smittium lentaquaticum, Sm. minutisporum, Stachylina gravicaudata St. stenospora. In addition a Amoebidium (Amoebidiales), A. appalachense, attached to anal...
Trichomycetes, mainly from nonbiting midge (Chironomidae), mosquito (Culicidae) and black fly (Simuliidae) larvae (Insecta: Diptera), are reported diverse freshwater environments principally previously unexplored areas of Argentina. Four new species Harpellales described: Austrosmittium patagonicum, A. lenticum, Smittium basiramosum Legeriomyces lichtwardtii. This is the first report spp. Americas a South America. Two other (Simuliomyces sp. Harpella sp.) described but not named. Fourteen...
Three new species of Bryophaenocladius Thienemann are described and figured as male imagines: B. urbanus sp. n. from Central Argentina, virgotruncatus nasus Argentinean Patagonia. A geometric morphometric analysis was performed to evaluate the taxonomic value shape anal point in delimitation. The involved 96 species. As a result, showed significant patterns change, recovering three main types: rounded, equilateral triangle-shaped, isosceles triangle-shaped. An identification key Neotropical...
Harpellales (Zygomycota: Trichomycetes) fungi are cosmopolitan obligate inhabitants of the gut immature insects. A biweekly survey associated with chironomid (Chironomidae: Diptera) larvae living in impounded water from Eryngium cabrerae (Apiaceae) phytotelmata Punta Lara forest, Argentina, was done Jan 2003–Dec 2004. Two species were larvae, Smittium phytotelmatum hindgut Polypedilum sp. and Stachylina lentica midgut both Metriocnemus eryngiotelmatus. No statistically significant...
The Puyehue-Cordón Caulle Volcanic Complex eruption occurred on June 4, 2011 (2236 m a.s.l. 40°32′S, 72°7′W). As a consequence, wide areas of Argentina were covered by volcanic ash. In order to investigate the effects ashfall chironomid assemblages, we conducted study at Ñireco River in southwestern part Natural Reserve Nahuel Huapi National Park that crosses city San Carlos de Bariloche, Río Negro, Argentina. We assessed changes assemblage attributes and 18 biological traits, comparing...
We consolidate and present data for the sexual stages of five North American species Orphella , fungal members trichomycetes previously classified within Harpellales. Three emendations accommodate newly recognized characters, including not only coiled zygospores accompanying cells but also other morphological traits provided in original descriptions O. avalonensis, haysii hiemalis . describe three new species, cataloochensis from both Smoky Mountains USA two provinces Canada as well...
The descriptions and illustrations of two new species Podonomus, P. tehuelche quinquesetosus are presented. Both belong to the Brundin’s decarthrus group were collected in an "orogenic island", representing first record a named Podonomus from Argentina outside Andean-Patagonian region. Immatures adults at relatively low altitude for genus (500 800 m a.s.l.). A key South American male pupae is
Studies of the relationships between temporal variation biological phenomena and environmental factors are essential to understanding dynamics communities. Phenology is a structuring element and, together with voltinism, related timing reproductive activities. The aim this study ascertain structure composition Chironomid assemblage its emergence patterns in relation variables through use pupal exuviae technique using Neotropical streams as model. presented similar species compositions....
Anatopynia vittigera Edwards is transfered to Alotanypus. The male and female of A. comb. nov. are redescribed immatures described illustrated. A cladistic analysis including one species each Macropelopiini genus was conducted in order assess the phylogenetic position Alotanypus provide first hypothesis for genus. Adults were included where discrete continuos characters considered. demonstrated that a monophyletic genus, with Guassutanypus oliveirai as sister group.
A new species of Larsia Fittkau, 1962 E.J. (1962), ‘Die Tanypodinae (Diptera: Chironomidae) (Die Tribus Anatopyniini, Macropelopiini und Pentaneurini)’, Abhandlungen zur Larvalsystematik der Insekten, 6, 1–453. [Google Scholar], viz. angusticornis sp. n., is described and adults immatures are figured. The study based on larvae collected from phytotelmata the bromeliad Aechmea distichantha Lemaire, 1853 A.C. (1853), Le Jardin Fleuriste; Journal General des Progres et Interets Horticoles...
The male, pupa and fourth instar larva of Ablabesmyia platensis sp. n. from La Plata, Buenos Aires province, Argentina the A. bianulata Paggi collected in southern are described figured. male adult diagnosis is emended, aedeagal complex redescribed photographed. Differences color pattern mainly distinguish these two species. new species also compared with Neotropical oliveirai Oliveira et Gessner.
Three new species of Pseudosmittia Edwards from the Neotropical region, P. satheri, larga and trapezoidea, are described figured as males. Allocladiusfortispinatus (Edwards), A. globosus Andersen et al. quadrus redescribed on basis material their geographical distribution updated. A phylogenetic analysis was performed in order to assess relationships species. As a result, sœtheri found be sister belonging angusta group. The trapezoidea is group clade ((P. propetropis (P. tropis--P....
The geographic distribution of the 2 phytotelmatous chironomids Monopelopia caraguata and Phytotelmatocladius delarosai is found to extend southward into Argentina, occurrence parthenogenesis in latter species corroborated under laboratory conditions.
The male, female and immature stages of the new species Onconeura analiae from Argentina are described figured. A parsimony analysis including seven known genus plus species, using a combined data set continuous qualitative characters, was conducted in order to assess phylogenetic position give for first time hypothesis genus.