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Burrowing species can be considered important ecosystem engineers that increase landscape heterogeneity, create subterranean shelters and provide foraging opportunities. We measured and described different aspects of gia...

Abstract Lice are obligatory ectoparasites of birds and mammals, possessing mouthparts adapted for feeding on the blood and/or keratinized tissue of their hosts. Recording parasites that may cause economic and sanitary l...

Pigment anomalies such as leucism and albinism are rare in wild mammals, often linked to genetic or developmental factors and sometimes carry ecological consequences. Here, we report the first record of leucism in the Ro...

Abstract Giant otters are territorial semi-aquatic mammals. It is common to find several individuals exhibiting wounds and scars due to intraspecific conflicts. Myiasis is a parasitic infestation on living tissues of ver...

ABSTRACT Lontra longicaudis is a semi-aquatic predator which mainly feeds on fish and crustaceans, but which can opportunistically predate mammals, birds, and reptiles. In the Amazon, this species is sympatric with Paleo...

Las exploraciones de Roth, las colecciones resultantes muchas ahora ubicadas en La Plata, Zúrich, Ginebra y Copenhague, y sus importantes aportes en temas geológicos -especialmente estratigráficos- y paleontológicos,...

Abstract Increased interaction between wild and urban environments owing to human population growth, increased anthropization of biomes, and habitat loss for wild animals increases the spread of infectious and parasitic ...

Most alpine ecosystems are subject to non-native species invasion as climate warms and human disturbance increases. Therefore, it is important to identify the main barriers and facilitators of alpine plant invasions. Whi...

Targeted vector surveillance informed by data on mosquito biting patterns can help limit arboviral zoonotic diseases. To characterise host-biting networks in rural and urban equestrian facilities from temperate Argentina...

Abstract The genomic locus that encodes the Leucine-rich repeat kinase 2 (LRRK2) gene is highly pleiotropic and associated with Parkinson’s disease (PD). Coding variants associated with risk of PD act as gain of functi...

Studies report the occurrence of Leishmania(Leishmania) hertigi in northern states of Brazil. In the present investigation, we describe the isolation ofL. (L.) hertigi from a porcupine (Coendou sp.) found in Brasília, F...

Nest survival is an important part of breeding success in grassland ecosystems, and the location of nests can determine vulnerability to different predators. We conducted an experiment with artificial nests to evaluate j...

Los Xenarthra (Mammalia) constituyen un grupo monofilético, caracterizado por una arquitectura esqueletaria particularmente distinta a la de los demás mamíferos placentarios. Su distribución actual es casi exclusivam...

Two biogeographical units are generally recognized in the present shelf area of Argentina: the Magellanian andArgentinian Provinces. The two provinces differ in their fossil record. The evolution of these provinces has b...

Metabolic syndrome (MetS) is a cluster of metabolic disturbances increasing a risk of cardiovascular diseases and diabetes 2 types. The main features of MetS include atherogenic dyslipidemia, elevated blood pressure, ins...

Abstract The aim of this study was to report infection by Toxoplasma gondii in free-ranging mammals from Pantanal, as well as to compare the laboratory methods used to detect this parasite among native wildlife species. ...

The analysis of the hyoid apparatus of fossil xenarthrans provides insight on the form of the tongue and its function in food intake and intraoral processing. The hyoid apparatus of xenarthrans is notable for fusion amon...

Recopilamos información sobre mortalidad de mamíferos medianos y grandes en canales de riego en Yungas de Argentina y evaluamos el rol de escaleras de escape como medida de mitigación. Implementamos registros sistemá...

Abstract Natural products are ecofriendly agents that can be used against parasitic diseases. Eimeria species cause eimeriosis in many birds and mammals and resistance to available medications used in the treatment of ei...

ABSTRACT We recorded aggregations of frugivorous bats swooping down to drink from pools formed by kitchen drains in two locations in western Amazonia. Videos and photographs show at least two species and three genera of ...

O monitoramento endócrino pela mensuração de metabólitos urinários e fecais de hormônios esteróides tem se mostrado uma alternativa viável na investigação da fisiologia reprodutiva e do estresse em uma grande v...

During the past two decades, techniques for the non-invasive analysis of fecal steroid metabolites (estrogen, androgen, progestagen and glucocorticoid metabolites) have been developed. These techniques have been used for...

Terrestrial Triassic assemblages are an important component of the heritage of Argentina, particularly because of their diverse record of fossil vertebrates. Triassic basins from western Argentina have a good representat...

Panochthus frenzelianus was described by Ameghino in 1889 based on a skull, mandible, cephalic shield, osteoderms from the posteriormost rows of carapace, and caudal rings. Unfortunately, the type specimen was not specif...