A5029749420- Ecology and Vegetation Dynamics Studies
- Wildlife Ecology and Conservation
- Plant and animal studies
- Animal Ecology and Behavior Studies
- Rangeland and Wildlife Management
- Species Distribution and Climate Change
- Forest Ecology and Biodiversity Studies
- Fire effects on ecosystems
- Plant Parasitism and Resistance
- Insect and Arachnid Ecology and Behavior
- Land Use and Ecosystem Services
- Mycorrhizal Fungi and Plant Interactions
- Primate Behavior and Ecology
- Vector-Borne Animal Diseases
- Environmental Education and Sustainability
- Yeasts and Rust Fungi Studies
- Geographies of human-animal interactions
- Ecology and biodiversity studies
- Conservation, Biodiversity, and Resource Management
- Animal Behavior and Welfare Studies
- Plant Pathogens and Fungal Diseases
- Mollusks and Parasites Studies
- Zoonotic diseases and public health
- Indigenous and Place-Based Education
- Diverse Educational Innovations Studies
Consejo Nacional de Investigaciones Científicas y Técnicas
2011-2024
University of Vermont
2022-2024
National University of Comahue
2011-2022
Centro Científico Tecnológico - Patagonia Norte
2014-2022
University of British Columbia
2013-2016
University of Tennessee at Knoxville
2009-2014
Biological invasions are often complex phenomena because many factors influence their outcome. One key aspect is how non-natives interact with the local biota. Interaction species may be especially important for exotic that require an obligatory mutualist, such as Pinaceae need ectomycorrhizal (EM) fungi. EM fungi and seeds of disperse independently, so they use different vectors. We studied role mammals dispersal agents on Isla Victoria, Argentina, where have been introduced. Only a few...
Significance Examining the effects of species gains and losses is fundamental to understanding assembly disassembly ecological communities in a changing world. However, field-based empirical studies that demonstrate mutualistic webs are exceedingly rare. In this study, we take advantage an ongoing natural experiment links gain invasive (introduced large mammals wasps), loss native keystone (a mistletoe), ensuing node-by-node interaction web Patagonia, Argentina. Our results both consequences...
Abstract Terrestrial invasive plants are a global problem and becoming ubiquitous components of most ecosystems. They implicated in altering disturbance regimes, reducing biodiversity, changing ecosystem function, sometimes profound irreversible ways. However, the ecological impacts have not been studied experimentally, research to date focuses on few types impacts, which can vary greatly among studies. Thus, our knowledge existing ascribed is surprisingly limited both breadth depth. Our aim...
Planted and invading non-native plant species can alter fire regimes through changes in fuel loads the structure continuity of fuels, potentially modifying flammability native communities. Such are not easily predicted deserve system-specific studies. In several regions southern hemisphere, exotic pines have been extensively planted treeless areas for forestry purposes subsequently invaded environments. However, studies evaluating alterations caused by Patagonia scarce. forest-steppe ecotone...
Introduced mammalian herbivores can negatively affect ecosystem structure and function if they introduce a novel disturbance to an ecosystem. For example, belowground foraging that bioturbate the soil, may alter process rates community composition in ecosystems lack native foragers. Wild boar ( Sus scrofa ) disturb soil system plant via their rooting behavior range. Given size numbers populations, this be significant forested ecosystems. Recently, wild were introduced Patagonian forests...
Abstract Non‐native mammals that are disturbance agents can promote non‐native plant invasions, but to date there is scant evidence on the mechanisms behind this pattern. We used wild boar ( S us scrofa ) as a model species evaluate role of in promoting invasion by identifying degree which soil and endozoochorous seed dispersal drive invasions. To test if promotes invasion, we conducted an exclosure experiment recorded emergence, establishment biomass seedlings seven planted no‐rooting,...
The role of negative interactions in shaping ecological communities and the realized niches species has been a focus considerable research for at least decades. Traditionally, discrepancy between size fundamental niche was attributed to effect interactions, such that is always smaller than niche. However, last decade, series studies have highlighted important positive played structure communities. This renewed interest led reconsideration concept. Specifically, some investigators suggested...
Abstract Aim The establishment success of exotic species is calculated as the fraction introduced that have become established, and invasion estimated established spread significantly from their points introduction. Records on introductions are highly incomplete, so strong conclusions about tens rule invasibility island continents cannot be drawn. Location Global. Methods Using Jeschke (2008) an example, we explain issue inadequacy data to draw continents. Results Lack adequate data. Main...
Invasive species are a pervasive driver of global change with increasing media coverage. Media coverage and framing can influence both invasive management policies, as well shed light on research needs. Using the wild boar (Sus scrofa) invasion in Argentina case study, we conducted content analysis scientific articles. Specifically, compared news articles based their emphasis: ecological, economic, health impacts overall perception portrayed news: "positive" when emphasized benefits from...
Abstract Herbivorous insects alter biogeochemical cycling within forests, but the magnitude of these impacts, their global variation, and drivers this variation remain poorly understood. To address knowledge gap help improve models, we established a network 74 plots 40 mature, undisturbed broadleaved forests. We analyzed freshly senesced green leaves for carbon, nitrogen, phosphorus silica concentrations, foliar production herbivory, stand-level nutrient fluxes. show more release by insect...
Summary Phenology, or the timing of life cycle events, is a key trait organisms that has significance for how communities are assembled and ecosystems function. Although variation in phenology plants received increased attention over past decade as result changing climate, we only beginning to understand role genetic these phenological traits on ecological interactions ecosystem‐level processes. The influence tree species riparian environments presents an interesting system understanding...
Abstract A growing body of work examines the direct and indirect effects climate change on ecosystems, typically by using manipulative experiments at a single site or performing meta‐analyses across many independent experiments. However, results from single‐site studies tend to have limited generality. Although meta‐analytic approaches can help overcome this exploring trends sites, inherent limitations in combining disparate datasets remain major challenge. In paper, we present globally...
While a growing number of studies have demonstrated the importance intraspecific differences within plant species on associated arthropod communities, little is known regarding relative strength these effects compared to environmental factors. In this study, we examined whether and nutrient fertilization interact shape community dominant coastal shrub, Baccharis pilularis (coyote bush). We overlaid treatment 12-year-old common garden experiment planted with erect prostrate architectural...
The impacts of invasive alien species are greatest when they become dominant members a community, introduce novel traits, and displace native species. Invasions by mollusks represent context which to compare trait differences between generalist introduced herbivores in terrestrial ecosystems. Here, we determined the abundance, habitat, feeding preferences, as well metabolic rate Pacific banana slug (Ariolimax columbianus) black (Arion rufus) coastal forests British Columbia, Canada. Through...
Abstract A classic pattern in biogeography is the decline species richness from lower to higher latitudes. Communities, however, can also vary with other geographical patterns, such as abiotic gradients that occur coastal interior habitats. In this study, we surveyed arthropod communities and herbivore pressure on populations of a dominant shrub, Baccharis pilularis , across 2000 km latitudinal transect determine whether versus location mediates responses latitude. We found abundance...
Abstract The environment and natural resource fields have traditionally centered western science, the scholarship of white men, land conservation strategies that neglect historical inhabitants. These tenets led to a narrow view how is defined created challenges for BIPOC students professionals see themselves as full equal participants in environmental sciences. Rubenstein School Environment Natural Resources has worked address these shortcomings through courses designed issues systemic...