Paula Maiten Orozco Valor

• PhD
• National Scientific and Technical Research Council

Global Roadkill Data: a dataset on terrestrial vertebrate mortality caused by collision with vehicles (Supplementary information)

Roadkill is widely recognized as one of the primary negative effects of roads on many wildlife species and also has socioeconomic impacts when they result in accidents. A comprehensive dataset of roadkill locations is essential to evaluate the factors contributing to roadkill risk and to enhance our comprehension of its impact on wildlife populatio...

Animal populations that require tree cavities can be either limited or structured depending on the quality and availability of tree cavities in their ecosystems. Over the last century, the Cald´en forest of Argentina has experienced severe habitat degradation due to anthropogenic activities. Here, we report the density and characteristics of caviti...

Presentamos el primer registro de Águila pescadora (Pandion haliaetus) para la provincia de La Pampa a partir de un ejemplar adulto observado 5 km al sur de la ciudad de Santa Rosa. Se trata del registro más continental hasta el momento, alejado de sistemas fluviales y litorales de Argentina.

The American Kestrel (Falco sparverius) has been steadily declining throughout most of its eastern North American range, and the cause of this decline is still relatively unknown. As a cavity nesting species, the American Kestrel often competes with other cavity nesters such as the invasive and abundant European Starling (Sturnus vulgaris) over nes...

The monogamous mating system, where a male and a female constitute the reproductive unit and share the parental care, predominates among bird reproductive strategies. However, there are also other mating systems with diverse parental care roles which may have implications for population breeding success and be relevant for their management and cons...

Este trabajo aporta evidencias empíricas para la toma de decisiones y posibilita delinear acciones futuras necesarias para a una conservación integral y efectiva del Cardenal amarillo (Gubernatrix cristata) en La Pampa, argentina.

En este trabajo se describe la biología reproductiva del Coludito Copetón (Leptasthenura platensis) enun bosque semiárido de La Pampa, Argentina. Durante las temporadas reproductivas de 2010-2011 a 2012-2013, se monitorearon 82-101 cajas nido por temporada, revisadas cada 1-3 días desde septiembre hasta febrero,registrando la fecha y cantidad de hu...

Dispersal is the process by which individuals move through different sites away from their natal place during their life. Many factors can regulate dispersal movements of individuals, from intrinsic characteristics of the individuals to environmental conditions. Here, we report American Kestrel (Falco sparverius) natal dispersal in central Argentin...

Agricultural expansion at the expense of natural habitats and the intensification processes in agricultural production are globally among the main causes of biodiversity and ecosystem services loss at large scale. This process can completely alter food provision for birds and have negative consequences for their diet and breeding performance. Under...

Land-use changes due to agricultural intensification and climatic factors can affect avian reproduction. We use a top predator of agroecosystems, the American kestrel (Falco sparverius) breeding in nest boxes in Central Argentina as a study subject to identify if these two drivers interact to affect birds breeding. We analyzed their breeding perfor...

ContextUrbanization and artificial light at night (ALAN) are major drivers of local biodiversity losses causing community alterations, disruption of predator-prey interactions, and ultimately, promotion of cascading effects. However, some species can colonize urban environments.Objectives We explore the role of ALAN as a driver of the colonization...

Arthropod-borne viruses represent the most important emerging viruses worldwide. Saint Louis encephalitis (SLEV) and West Nile (WNV) viruses are vectored by Culex spp. mosquitoes and amplified by several bird species. We carried out an extensive retrospective serosurvey study to analyze the exposure of free-ranging raptors to SLEV and WNV in centra...

This article does not have an abstract.

The introduction of agricultural activity (including livestock farming) in natural environments affects all the natural processes occurring there, from individual behavior and population dynamics to communities’ composition and flows of matter and energy, and from local to landscape scales.

Viruses transmitted by arthropods represent the most important emerging virus in the world. The Saint Louis encephalitis (SLEV) and West Nile virus (WNV) are transmitting by Culex mosquitoes as vectors and several bird species as hosts. The purpose of this research was to study the exposure of birds of prey communities for SLEV and WNV in La Pampa...

Here we present data on the reproductive biology of the Saffron Finch (Sicalis flaveola) in nest boxes placed in the semiarid caldén (Prosopis caldenia) forest in La Pampa, Argentina, during two consecutive breeding seasons (101 nest boxes in 2011-2012 and 99 in 2012-2013). The breeding season began in early November and ended in mid-February. The...

La condición física de un ave puede estar relacionada con múltiples aspectos, entre ellos diferentes parámetros reproductivos. Describimos la condición corporal de los pichones de coludito copetón (Leptasthenura platensis) nacidos en cajas nido colocadas en un bosque semiárido ubicado en el establecimiento privado "La tapera", en la provincia de La...

Las cavidades son un recurso empleado por numerosos taxones, y si bien el uso de cajas nido ha sido muy útil para estudiar interacciones tales como competencia o depredación entre las aves que las usan, es escasa la información acerca de las relaciones otros vertebrados. La usurpación es una interacción que ocurre cuando una especie roba el nido ac...

La disponibilidad de cavidades en árboles puede limitar y estructurar las comunidades de animales que las usan para criar o refugiarse. Analizamos la disponibilidad y caracterizamos las cavidades susceptibles de ser usadas por aves para el bosque de Caldén (Prosopis caldenia) en el centro de Argentina. Durante 2012 y 2013 se relevaron ocho parcelas...

La ratona común (Troglodytes aedon, 12 grs.) es un pequeño paseriforme que se distribuye en todo el continente americano. En Argentina se la registra a lo largo de todo el país en una gran variedad de ambientes. Si bien es una especie común, existen escasos estudios que describen la dieta alimenticia de manera cuali-cuantitativa. Con el objetivo de...

La Comadrejita Pampeana (Thylamys fenestrae, 27,15 g) habita en la Ecorregión del Espinal abarcando los distritos del Caldén y del Algarrobo, como también el Distrito Pampeano Occidental y Austral. Esta especie fue convalidada como tal recientemente por lo cual se desconoce gran parte de su historia natural. Durante el monitoreo de cajas nidos para...