A5020598208- Wildlife Ecology and Conservation
- Animal Ecology and Behavior Studies
- Avian ecology and behavior
- Animal Behavior and Reproduction
- Isotope Analysis in Ecology
- Genetic diversity and population structure
- Plant and animal studies
- Ecology and Vegetation Dynamics Studies
- Marine animal studies overview
- Evolutionary Game Theory and Cooperation
- Zoonotic diseases and public health
- Microbial Community Ecology and Physiology
- Species Distribution and Climate Change
- Animal Disease Management and Epidemiology
- Fish Ecology and Management Studies
- Agriculture Sustainability and Environmental Impact
- Animal Behavior and Welfare Studies
- Environmental DNA in Biodiversity Studies
- Health and Lifestyle Studies
- Aging, Health, and Disability
- Rangeland and Wildlife Management
- Health, Environment, Cognitive Aging
- Public Health and Social Inequalities
- Genetic and phenotypic traits in livestock
- Food Waste Reduction and Sustainability
Consejo Nacional de Investigaciones Científicas y Técnicas
2020-2024
National University of Comahue
2020-2024
University of Wisconsin–Madison
2015-2022
The organization of ecological assemblages has important implications for ecosystem functioning, but little is known about how scavenger communities organize at the global scale. Here, we test four hypotheses on factors affecting network structure terrestrial vertebrate and its functioning. We expect to be more nested (i.e. structured): 1) in species‐rich productive regions, as nestedness been linked high competition carrion resources, 2) regions with low human impact, because most efficient...
Abstract Predator–prey games emerge when predators and prey dynamically respond to the behavior of one another, driving outcomes predator–prey interactions. Predation success is a function combined probabilities encountering capturing prey, which are influenced by both environmental features. While relative importance encounter capture have been evaluated in spatial framework, temporal variation intrinsic catchability likely also affect distribution predation events. Using...
Abstract Species assemblages often have a non‐random nested organization, which in vertebrate scavenger (carrion‐consuming) is thought to be driven by facilitation competitive environments. However, not all species play the same role maintaining assemblage structure, as some are obligate scavengers (i.e., vultures) and others facultative, scavenging opportunistically. We used database with 177 from 53 22 countries across five continents identify functional traits of key network structure....
Summary The ungulate–carnivore–vulture complex is a key trophic module of many terrestrial ecosystems, but one that globally under threat. Few have explored cross‐species dependencies in this module, and the degree to which vultures rely on facilitation by apex carnivores rarely known almost never quantified. We investigated importance puma Puma concolor predation its native camelid prey, vicuñas Vicugna vicugna guanacos Lama guanicoe , food provisioning for Andean condors Vultur gryphus...
Abstract Animal carcass decomposition is an often-overlooked component of nutrient cycles. The importance for increasing availability has been demonstrated in several ecosystems, but impacts arid lands are poorly understood. In a protected high desert landscape Argentina, puma predation vicuñas main driver distribution. Here, we sampled kill sites across three habitats (plains, canyons, and meadows) to evaluate the vicuña stomach on soil plant nutrients up 5 years after deposition. Soil...
Effective conservation relies on robust monitoring programmes to design and evaluate management actions (Nichols & Williams, 2006). Large vertebrates with slow life-history strategies present a challenge for given the necessary long-term investment of effort resources. Furthermore, many these possess expansive habitat requirements, demanding large-scale approaches (Rudnick, Katzner, DeWoody, 2009). For such species, localized efforts limited duration can result in partial or even biased...
Abstract Aim Evaluating the patterns of genetic variation and population connectivity is fundamental to effectively designing implementing conservation strategies for threatened species. However, in highly mobile vertebrates, especially avian species, are often overlooked as it generally assumed be driven by demographic panmixia or isolation distance. Herein, we investigated structure across four biomes a vagile bird, Andean condor ( Vultur gryphus ). Location Four major Neotropical...
Abstract Most food web models fail to account for the full complexity of interactions within a community, particularly where microbes are involved. Carcasses microbe‐rich resources and may represent common nexus macrobiome microbiome, effectively uniting autotrophs, consumers, predators microbiota. We evaluated role carcasses as multitrophic explored dietary partitioning sexually dimorphic obligate scavenger known its hierarchical social system. This study was set in well‐studied community...
Abstract The effects of predation risk on prey populations have been studied extensively; yet, how is manifested in a trophically linked guild—scavengers—has overlooked. Risk could be particularly consequential for obligate scavengers that are vulnerable while foraging and rely carrion provisioned by, shared with, apex predators. We investigated whether Andean condors ( Vultur gryphus ) respond to landscape where the main source camelids killed by pumas Puma concolor ). hypothesized would...
Abstract The late Quaternary megafauna extinctions reshaped species assemblages, yet we know little about how extant obligate scavengers responded to this abrupt ecological change. To explore whether persisted by depending on contemporary community linkages or via foraging flexibility, tested the importance of trophic interaction between pumas ( Puma concolor ) and native camelids Vicugna vicugna Lama guanicoe for persistence Andean condors Vultur gryphus in southern South America, compared...
While genetic diversity of threatened species is a major concern conservation biologists, historic patterns variation are often unknown. A powerful approach to assess and processes erosion via ancient DNA techniques. Herein, we analyzed mtDNA from historical samples (1800s present) Andean Condors (
Interspecific competition plays a central role in structuring ecological communities and is particularly strong force among avian scavengers. Niche partitioning scavengers has been thoroughly investigated for Old World vultures (family Accipitridae), yet we know much less about its effect on the structure functioning of complex scavenger guilds New Cathartidae). We studied how niche differed between ecosystems featuring species-poor species-rich South America. compared dietary overlap...
Animal carcass decomposition is an often-overlooked component of nutrient cycles. The importance for increasing availability has been demonstrated in several ecosystems, but impacts arid lands are poorly understood. In a protected high desert landscape Argentina, puma predation vicuñas main driver distribution. Here, we sampled kill sites across three habitats (plains, canyons, and meadows) to evaluate the vicuña stomach on soil plant nutrients up 5 years after deposition. Soil beneath both...
Apex carnivores, including Pumas (Puma concolor), play a key role in ecological communities. have variable foraging patterns across their extensive range and are known scavengers. A recent review of Puma diet predation studies documented total 48 mammal prey types representing 9 the 13 orders found North America, but excluding marine mammals (Orders Cetacea Sirenia, Clade Pinnipedimorpha) or tapirs (Order Perissodactyla). This report documents what is, to best our knowledge, 1st observation...
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