A5064439218- Species Distribution and Climate Change
- Ecology and Vegetation Dynamics Studies
- Wildlife Ecology and Conservation
- Avian ecology and behavior
- Plant and animal studies
- Fire effects on ecosystems
- Bat Biology and Ecology Studies
- Environmental and Cultural Studies in Latin America and Beyond
- Viral Infections and Vectors
- Animal Behavior and Reproduction
- High Altitude and Hypoxia
- Rangeland and Wildlife Management
- Tree-ring climate responses
- Animal Vocal Communication and Behavior
- Evolution and Paleontology Studies
- Animal and Plant Science Education
- Forest Ecology and Biodiversity Studies
- Forest Management and Policy
- Bird parasitology and diseases
- Animal Ecology and Behavior Studies
- Climate Change and Health Impacts
- Physiological and biochemical adaptations
- Piperaceae Chemical and Biological Studies
- Conservation, Biodiversity, and Resource Management
- Biochemical and biochemical processes
Pontificia Universidad Católica de Chile
2014-2024
National Audubon Society
2022-2024
Universidad de Magallanes
2022-2024
University of British Columbia
2017-2024
Centre For Sustainable Urban Development
2023
Center of Applied Ecology & Sustainability
2023
Center for the Socioeconomic Impact of Environmental Policies
2022
Environment and Climate Change Canada
2021
Peregrine Power (United States)
2013
The Peregrine Fund
2013
Ibarra, J. T., K. L. Cockle, T. A. Altamirano, Y. Van der Hoek, S. W. Simard, C. Bonacic, and Martin. 2020. Nurturing resilient forest biodiversity: nest webs as complex adaptive systems. Ecology Society 25(2):27. https://doi.org/10.5751/ES-11590-250227
Abstract Tree cavities are a keystone resource for many wildlife species worldwide. In Andean temperate forests of South America, birds, mammals and reptiles use to achieve their life history requirements. However, information on cavity supply drivers production in these remains largely undocumented. We examined the patterns tree‐cavity successional native forests, exploring potential occurrence relative abundances ecosystems southern Chile. 10 forest stands, we established 369 vegetation...
ABSTRACT Cavity-nesting bird populations are most frequently limited by the number of tree cavities available in second-growth forests. However, this possible limitation a key resource is less clear old-growth We compared forest attributes (i.e., basal area, density larger trees, dead and cavity density) stands Andean temperate rainforests southern Chile. To examine role nest-site availability limiting Aphrastura spinicauda (Thorn-Tailed Rayadito), we monitored their both types during 5-year...
Mountains produce distinct environmental gradients that may constrain or facilitate both the presence of avian species and/or specific combinations functional traits. We addressed richness and diversity to understand relative importance habitat structure elevation in shaping patterns south temperate Andes, Chile. During 2010-2018, we conducted 2202 point-counts four mountain habitats (successional montane forest, old-growth subalpine, alpine) from 211 1,768 m assembled trait data associated...
Avian reproductive strategies have been hypothesized to vary with elevation. Shorter breeding seasons due harsh environmental conditions, and potentially higher predation risks, may reduce clutch sizes at elevations, which in some species leads increased parental care offspring survival. However, this phenotypically plastic adaptive response has documented only a handful of the Northern Hemisphere. For first time southern temperate ecosystem, we studied whether strategy secondary...
Homegardens are coupled social-ecological systems that act as biodiversity reservoirs while contributing to local food sovereignty. These characterized by their structural complexity, involving management practices according gardener's cultural origin. Social-ecological processes in homegardens may filters of species' functional traits, and thus influence the species richness-functional diversity relationship critical agroecosystem components like beetles (Coleoptera). We tested beetle...
Accurate biodiversity and population monitoring is a requirement for effective conservation decision making. Survey method bias therefore concern, particularly when research programs face logistical cost limitations.We employed point counts (PCs) autonomous recording units (ARUs) to survey avian within comparable, high elevation, temperate mountain habitats at opposite ends of the Americas: nine mountains in British Columbia (BC), Canada, 10 southern Chile. We compared detected species...
Mountains are excellent systems for studying biodiversity as they promote rapid species turnover across relatively short elevational distances. Most research on biogeographic patterns in mountains has focused tropical regions; far less is known about diversity gradients and their relative contribution to conservation temperate mountains, particularly at high latitudes. To better understand the composition, ecology, evolutionary history of high-latitude mountain bird communities, we evaluated...
Abstract Alpine ecosystems represent varied climates and vegetation structures globally, with the potential to support rich functionally diverse avian communities. High mountain habitats species are under significant threat from climate change other anthropogenic factors. Yet, no global database of alpine birds exists, most systems lacking basic information on breeding in habitats, their status trends, or cryptic diversity (i.e., sub-species distributions). To address these critical...
Owls occur at relatively low densities and are cryptic; thus, monitoring programs that estimate variation in detectability will improve inferences about their presence. We investigated temporal abiotic sources of associated with detection probabilities rufous-legged owls (Strix rufipes), a threatened forest specialist, austral pygmy-owls (Glaucidium nana), habitat generalist, temperate forests southern Chile. also assessed whether 1 species was related to the other species. During 2011–2013,...
Abstract In the Northern Hemisphere, several avian cavity excavators (e.g., woodpeckers) orient their cavities increasingly toward equator as latitude increases (i.e. farther north), and it is proposed that they do so to take advantage of incident solar radiation at nests. If a key driver orientations globally, this pattern should extend Southern Hemisphere. Here, we test prediction are oriented northward higher colder) latitudes in Hemisphere describe preferred entrance direction(s) 1,501...
There is limited knowledge about the breeding strategies of birds inhabiting in South American temperate forests. This particularly true for open-cup forest passerines at high latitudes (> 42°). To better understand ecology these species, this study we described and compared (i.e., nest dimensions, height from ground, egg laying rhythm, clutch size, length developmental periods, phenology, diversity nesting substrate) five passerine that inhabit sub-Antarctic ecosystems. During three seasons...
Abstract Nest building is a widespread breeding strategy across taxa. composition and structure can play critical role in the success and/or adult survival of nest‐building vertebrates. Although nest traits are expected to vary adaptively elevational gradients, few studies address this relationship. We studied variation (composition structure) elevation for two taxa with different functions Andean temperate forests southern Chile: bird ( Aphrastura spinicauda , Furnariidae, 170 nests)...
The composition and quality of nesting materials may influence the breeding success cavity-nesting vertebrates, providing protection optimal temperature to eggs chicks.Between 2010 2013, we studied preferences regarding nest used by cavity-nesters in Andean temperate forests, southern Chile.We deployed 240 nest-boxes, obtaining data for 290 nests three bird species (Aphrastura spinicauda, Troglodytes aedon Tachycineta meyeni) four mammals (Dromiciops gliroides, Rattus rattus, Oligoryzomys...
We studied how human induced structural changes in forests affect stand use of the Rufous-legged Owl (forest-specialist) and Austral Pygmy (forest-facultative), a gradient from lowland disrupted to protected Andean Chile. also tested if calls one species influenced calling behaviour other. detected total 34 Owls 21 during four seasons. were found principally old growth Araucaria-Nothofagus stands (32.4%), evergreen (52.4%). For both there was seasonal effect on call response, with drop...
Capsule: Many protected forests at high elevations show higher endemic biodiversity than unprotected habitats low elevations. In seasonal ecosystems, however, harsh environmental conditions during winter may force individuals to move from degraded in lowlands.Aims: To examine how forest types and seasons affect avian diversity habitat-use guilds forests.Methods: Habitat surveys were conducted test type differences on species richness, relative abundances abundance of guilds.Results:...
The Magellanic sub-Antarctic Forest is home to the world's southernmost avian community and only Southern Hemisphere analogue Northern temperate forests at this latitude. This region considered among few remaining pristine areas of world, shifts in environmental conditions are predominantly driven by climate variability. Thus, understanding climate-driven demographic processes critical for addressing conservation issues system under future change scenarios. Here, we describe annual survival...
Abstract Ecosystem engineers are organisms that impact their environment and co-existing species by creating or modifying habitats, thus they play important roles as drivers of community assembly. We examined whether cavity characteristics and/or habitat attributes associated with cavities provided 4 ecosystem influence the presence nests 3 secondary cavity-nesting birds—Aphrastura spinicauda (Thorn-tailed Rayadito), Tachycineta leucopyga (Chilean Swallow), Troglodytes aedon (Southern House...