A5080832421- Avian ecology and behavior
- Wildlife Ecology and Conservation
- Ecology and Vegetation Dynamics Studies
- Animal Behavior and Reproduction
- Wildlife-Road Interactions and Conservation
- Coastal wetland ecosystem dynamics
- Marine and coastal plant biology
- Species Distribution and Climate Change
- Plant and animal studies
- Amphibian and Reptile Biology
- Wildlife Conservation and Criminology Analyses
- Fish Ecology and Management Studies
- Animal Vocal Communication and Behavior
- Marine Bivalve and Aquaculture Studies
- Marine animal studies overview
- Marine and fisheries research
- Bird parasitology and diseases
- Insect and Arachnid Ecology and Behavior
- Animal Ecology and Behavior Studies
- Primate Behavior and Ecology
- Rangeland and Wildlife Management
- Agriculture, Land Use, Rural Development
- Literary and Cultural Studies
- Coral and Marine Ecosystems Studies
- Marine Biology and Ecology Research
Institute of Marine and Coastal Research
2015-2024
National University of Mar del Plata
2015-2024
Consejo Nacional de Investigaciones Científicas y Técnicas
2010-2024
Fundación Ciencias Exactas y Naturales
2010-2024
Instituto de Investigacións Mariñas
2013-2023
National Agricultural Technology Institute
2018
Centro Científico Tecnológico - San Juan
2005-2010
Pontificia Universidad Católica de Chile
2008
Wildlife Conservation Society Argentina
2008
Centro Científico Tecnológico - Tucumán
2005-2007
Abstract Aim To produce an inventory of south‐west Atlantic saltmarshes (from latitude 31°48′ S to 43°20′ S) using remotely sensed images and field sampling; quantify their total area; describe the biogeographical variation main habitats characterized by dominant vascular plants, in relation major environmental factors; test hypothesis predominance reversal pattern plant distribution (sedges grasses dominate lower, regularly inundated zones, while upper zones are occupied more halophytic...
We evaluated how grazing affects bird assemblages in short and tall coastal salty grasslands at Samborombón Bay, Argentina. studied ranches with three patterns of (spatial rotation, continuous, winter grazing) a control site, each censusing birds surveying vegetation monthly. Results allowed us to compare the various treatments their effects on endangered grassland. Three species special conservation concern showed significant responses grazing. In grasslands, Buffbreasted Sandpiper...
Understanding the way animals respond to novel habitats and fluctuations in food resources can provide insights into ability of species settle modified habitats. We studied patterns arthropod selection by Burrowing Owls natural assessed diet this owl means pellet analysis and, simultaneously, we estimated relative abundance arthropods field trapping. A similar pattern prey avoidance was found among habitats, with coleopterans main consumed. Food-niche breadth low at all reflecting dominance...
The rainfall regime of the Pampas region Argentina shows a long-term cyclic behavior that has increased in intensity over historical mean during last four decades. In this paper we explored effects changes monthly cumulative on lagoon and riparian habitat, and, turn wetland waterbird community. We also responses morphofunctional groups to fluctuation water level habitat diversity caused by change at Mar Chiquita Coastal Lagoon, (37°32' 37°45'S, 57°19' 57°26'W). Analysis satellite images...
Abstract Several causes have been considered to explain the specialized ant-feeder habits of bufonids. We analysed diet and availability prey items for sympatric Bufo arenarum, dorbignyi Odontophrynus americanus living in a grassland flooding pampa, Argentina. Frogs insects were captured once month with pitfall traps during 2-year sampling. The frogs measured stomach content was analysed. ingests Lepidoptera larvae, Coleoptera, Diptera Homoptera; while both species not only feed on ants, but...
We evaluated the relationship between an assemblage of diurnal raptors and local-and landscape-scale habitat variables in eastern portion South America's temperate grasslands Argentina (37°32'-37°45'S, 57°19'-57°26'W). The landscape is a mosaic agroecosystems natural grasslands. Raptor species were sampled using fixed-distance point-counts, from October 2004 to February 2005. used generalised additive models analyse raptor occurrence or abundance environmental predictors at two spatial...
Agriculture and urban development have been the main drivers of loss fragmentation grasslands worldwide. The Argentine Pampas has highly transformed by human activities. However how birds respond to size grassland patches landscape matrices is unknown. We studied effects these on abundance richness both specialist opportunist birds. In addition, we evaluated patch effect in contrast with unfragmented grasslands. surveyed small large Cortaderia selloana embedded within agricultural, planted...
We present historic and contemporary information on the distribution abundance of Buff-breasted Sandpipers (Tryngites subruficollis) in South America. Historic was collated from literature, area ornithologists, museums, whereas data were derived surveys conducted throughout main wintering range Argentina, Uruguay, Brazil during austral summers 1999 2001. Variable circular plot sampling used to estimate population densities. During 1999, highest concentration Argentina southern Bahía...
The Bay-capped Wren-Spinetail (Spartonoica maluroides, Furnariidae) is the most specialized and threatened bird inhabiting Spartina-dominated saltmarshes in southeastern South America. These marshes are being modified at an increasing rate, primarily by cattle grazing fire, which make this spinetail highly vulnerable. To assess how land use affects Wren-Spinetail, we estimated its density under different intensities of fire grazing, studied selection nesting habitat nest success,...
The loss of grasslands in southeastern South America has negatively affected grassland birds, leading to marked declines their populations. However, the extent which habitat transformation impacts on reproductive performance, and whether magnitude these effects may be modulated by landscape matrices, is unknown. We assessed effect fragmentation bird reproduction comparing combined influence matrix nesting success, brood parasitism productivity Spectacled Tyrant Hymenops perspicillatus...
Dietary requirements influence the structure of shorebird assemblages, and information on diet is a key to understanding why when particular species use an area how competition for food might shape their geographical distributions. We describe patterns resources four migratory shorebirds at Samborombón Bay, Argentina, one most important sites in western hemisphere. The birds consumed items representing least 15 taxa but only few comprised main consumed. showed dietary flexibility influenced...