A5061361891- Evolution and Paleontology Studies
- Animal Ecology and Behavior Studies
- Bat Biology and Ecology Studies
- Wildlife Ecology and Conservation
- Amphibian and Reptile Biology
- Tardigrade Biology and Ecology
- Geology and Paleoclimatology Research
- Urbanism, Landscape, and Tourism Studies
- Fish Biology and Ecology Studies
- Fish biology, ecology, and behavior
- Invertebrate Taxonomy and Ecology
- Environmental and Ecological Studies
- Wine Industry and Tourism
- Date Palm Research Studies
- Spider Taxonomy and Behavior Studies
- Vector-borne infectious diseases
- Insect and Arachnid Ecology and Behavior
- Species Distribution and Climate Change
- Lepidoptera: Biology and Taxonomy
- Biocrusts and Microbial Ecology
- Archaeological and Historical Studies
- Cultural and Mythological Studies
- Rabies epidemiology and control
- Yersinia bacterium, plague, ectoparasites research
- Human-Animal Interaction Studies
Ministerio de Salud - Provincia de Buenos Aires
2021
Bernardino Rivadavia Natural Sciences Museum
2015
Museo Nacional de Ciencias Naturales
2013
Universidad Nacional de La Plata
2000-2005
Infestation parameters and indices of mites, ticks fleas associated with wild rodents from northeastern Buenos Aires Province, Argentina, were studied. Host species similarity was also analyzed in relation to their ectoparasites. Fifty-five captured January 2000 March 2001. In total, 1,022 ectoparasites collected three ectoparasite-host associations new records. However, this is the first study on Craneopsylla minerva wolffhuegeli infesting parameters. Ectoparasite total mean abundance...
Santiago Roth was a Swiss fossil finder, naturalist, and paleontologist that emigrated to Argentina in 1866. His work largely influenced the discipline country at end of twentieth century, particularly stratigraphy Pampean region. Some his collections fossils were sold museums private collectors Europe accompanied by elaborated catalogues. Fossils Roth's catalogues N° 2 3 are housed today Natural History Museum Denmark, from 4 6, museums, with Catalogue 5 currently Department Paleontology,...
Abstract We describe new Late Miocene mammalian specimens from the Maimará Formation (Late to Early Pliocene) exposed at Humahuaca Basin (23°–24°S), northwestern Argentina (NWA), and analyse their taxonomy relevance for our understanding of initial stages Great American Biotic Interchange (GABI). The stratigraphical geochronological control studied indicates a time window c . 6.6–5.8 Ma. These data are crucial establishing oldest records Holarctic immigrants GABI. first record cricetid...
Abstract Ctenomys paramilloensis Roig et al. (1975. paramilloensis, una nueva especie de tucu-tuco la Sierra Uspallata, provincia Mendoza (Rodentia, Octodontidae). In: Resúmenes IV Jornada Argentina Zoología . Corrientes, Argentina), was coined to represent populations for this caviomorph (Hystricomorpha) subterranean rodent inhabiting a high Andean isolated tableland in the Mendoza, Argentina. To evaluate validity of nominal form we conducted field sampling involving several localities...
Late Miocene fluvial strata of the Palo Pintado Formation are broadly exposed to northwest town Angastaco, Salta province, Northwest Argentina. These accumulated in extensional Angastaco Basin. Recent field work at (late Miocene), Valle Calchaquí, Argentina has provided fossil remains that greatly increased knowledge faunal assemblage this site. A number notoungulates and rodents were collected. partial left jaw was collected Quebrada Peñas Blancas along west bank Río Calchaquí....
On the basis of an adult individual collected in 1955 plus 3 mandibles latest Holocene age, we describe a new living species amphibious rat Holochilus (Sigmodontinae, Oryzomyini) from west-central Mendoza Province, Argentina. The is characterized by its short tail, broad zygomatic plate with rounded anterior—superior corner, bony palate without excrescences, large mesolophostyle upper first molars and complex third molar shorter than second, lacking hypoflexus. morphological traits displayed...
The archaeological record shows the presence of medium-sized dogs with mesocephalic skulls in Southeast South America, from at least end third millennium BP to historical times, along 700 km southern Brazil wetlands Paraná River Argentina. These dogs, associated complex hunter-gatherers, do not appear have been product exchange Andean societies as previous theories suggested, but rather a local breeding process, probably reflecting offspring founder population introduced area before BP....
The "Irenean" is a controversial unit traditionally employed to embrace fossil vertebrates and bearing-sediments of late Neogene—roughly Pliocene—age in southern Buenos Aires Province, Argentina. Although originally intended as an intermediate between Montehermosan Chapadmalalan faunas, almost century after its description, the "Irenenean" still poorly known. Based on fieldwork by our team during last 25 years type area, Quequén Salado River, we revisit basic aspects "Irenean". We describe...
Abstract In the Andean portion of northern Patagonia, populations Ctenomys are found from low-elevation plains to high-elevation meadows and valleys. Despite their prevalence, taxonomy these subterranean rodents remains poorly resolved. Using genetic morphological data obtained museum specimens animals collected in field, we examined southwestern Mendoza Province, Argentina. Our analyses suggest presence at least five species within study area. The highest, innermost Andes is occupied by C....
A new species of sparassocynid marsupial, Sparassocynus maimarai n. sp. from the late Miocene Maimará Formation (Jujuy Province, Argentina) is described a left mandibular fragment with complete p2–m4 series. It differs remaining genus S. bahiai (Montehermosan—late Miocene/early Pliocene—of Buenos Aires and derivatus (Chapadmalalan Marplatan–Pliocene Province) by its smaller size, relatively longer m1 respect to m4, presence lingual cingulum extended between para- metaconid on m1–3, more...
Abstract Santiago Roth (1850–1924) was a naturalist that collected and sold fossils from the Pampean region (Argentina) in Europe. Much of specimens by are hosted at Paläontologisches Institut und Museum, Universität Zürich Muséun D’Histoire Naturelle Geneva Switzerland, but were never studied. In this article, we review order Carnivora under taxonomical temporal approach. We confirm presence 16 between provinces Santa Fe Buenos Aires. identify felids ( Smilodon sp., Panthera onca , related...
Abstract The caviomorph rodent Abrocoma uspallata Braun, J.K. and Mares, M.A. (2002). Systematics of the cinerea species complex (Rodentia: Abrocomidae), with a description new . J. Mammal 83: 1–19, doi: 10.1093/jmammal/83.1.1, stands as most recently described within its genus remains one least studied. Known from two localities in northwestern Mendoza Province, Argentina, this elusive has been subject four field studies conducted during 2022. obtained evidence, including craniodental fecal...
A new specimen referable to Boiruna cf. B. maculata from a Lower-Mid Pleistocene locality in Ramallo, Buenos Aires, Argentina is described, representing the first fossil record of this genus. This referred living genus on basis following features: robust supratemporal bone very wide at mid-length; subcentral process basioccipital with three well-developed subequal projections forming wide, flat, posteriorly indented surface; lymphatic fossae trunk vertebrae and deep, well developed ridges;...
Abstract The monotypic genus Salinomys (Cricetidae, Sigmodontinae) includes tiny mice with specialist adaptations to desert habitats characteristic of Argentinian shrubland. We report on a population delicatus from Central La Pampa Province, Argentina, representing 450 km southerly extension its known distribution. Importantly, this stresses the necessity for further discussion validity conservation status, recently updated Data Deficient Vulnerable. Furthermore, we highlight aspects...
Two hairworms from Argentina, Gordionus porosus n. sp. and ondulatus (Nematomorpha, Gordioidea), are described illustrated. The cuticle of both species shows only 1 areolar type. Areoles G. polygonal surrounded by minute bristles the interareolar groove is wide with large pores. characterized rectangular or irregular areoles which margins cuticular elongations project as finger-like structures, giving an undulated appearance. Comparing these to remaining American Gordionus, close violaceus...
We report the southernmost locality for sigmodontine rodent Deltamys kempi Thomas, 1917, in Arroyo Las Tijeras (36°22'43" S, 56°50'12" W, General Lavalle county) near coast of Buenos Aires province (Argentina), extending range species ca.150 km S.This record is a wake-up call about presence Brazilian fauna well beyond their suspected limit.Several lines evidence point to considering D. as very recent immigrant Argentina.