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Implicancias tafonómicas y paleoambientales de los pequeños vertebrados del sitio arqueológico Campo Laborde ( centro de los pastizales pampeanos, Buenos Aires, Argentina)
(Universidad Autónoma de Madrid. Departamento de Biología. Laboratorio de Arqueozoología, 2015-06)
En este trabajo se presentan los resultados obtenidos del estudio taxonómico y tafonómico del conjunto arqueofaunístico de pequeños vertebrados de Campo Laborde (centro de los pastizales pampeanos, Buenos Aires, Argentina), ...
Endoscopy, histology and electron microscopy analysis of foetal membranes in pregnant South American plains vizcacha reveal unusual excrescences on the yolk sac
(Springer, 2018-06)
The South American hystricognathe Lagostomus maximus is a fossorial rodent whose females show unique reproductive characteristics. They have a 155-day long gestation, show massive polyovulation and a selective process of ...
Seasonal variations of gonadotropins in the pars distalis male viscacha pituitary: Effect of chronic melatonin treatment
(Società Italiana di Istochimica, 2005-12)
The gonadotropes, LH and FSH cells, were immunohistochemically identified in the pituitary pars distalis of the adult male viscacha (Lagostomus maximus maximus) using specific antibodies against hLHb and hFSHb with the ...
Circadian variations in the expression of estrogen receptor alfa in retina of viscacha
(Instituto de Histología y Embriología, 2019)
In some species the presence of estrogen receptors α (ERα) has been demonstrated in retina. ERα are involved in neuroprotectivefunctions through their ability to regulate apoptosis, autophagy and antioxidant processes. ...
Characterization and mitigation of puma-livestock conflicts in central Argentina
(Wild Felid Research and Management Association, 2016-07)
The puma Puma concolor is the most widespread top predator and one of the most controversial carnivores in Argentina. It occurs from the high-altitude deserts of the Andes to tropical and subtropical forests, and from the ...
Comprehensive total evidence phylogeny of chinchillids (Rodentia, Caviomorpha): Cheek teeth anatomy and evolution
(Wiley Blackwell Publishing, Inc, 2021-08)
Rodents are the most diverse order of extant mammals, and caviomorph rodents, or New World hystricognaths, have a remarkable morphological disparity and a long fossil record that begins in the Eocene. Chinchilloidea is a ...
Ecological conditions and isotopic diet (13C and 15N) of Holocene caviomorph rodents in Northern Patagonia
(Academic Press Ltd - Elsevier Science Ltd, 2016-04)
This work improves our knowledge about the relationship between diet and environment among Northern Patagonian caviomorph rodents. In order to characterize long-term individual diets, we present δ13C and δ15N data from ...
Hosts, distribution and genetic divergence (16S rDNA) of Amblyomma dubitatum (Acari: Ixodidae)
(Amsterdam, 2010)
We supply information about hosts and distribution of Amblyomma dubitatum. In addition, we carry out an analysis of genetic divergence among specimens of A. dubitatum from different localities and with respect to other ...
Estratigrafía y Mamíferos Cuaternarios de las "Pampas de Altura" de las Sierras Pampeanas de Córdoba, Argentina.
(2019-04-22)
Los trabajos realizados sobre restos de fauna fósil cuaternaria de Córdoba se circunscriben a sectores de llanura. El objetivo de esta tesis es analizar la secuencia estratigráfica, los mamíferos fósiles y las edades de ...