A5012454451- Plant and animal studies
- Ecology and Vegetation Dynamics Studies
- Plant Parasitism and Resistance
- Insect-Plant Interactions and Control
- Species Distribution and Climate Change
- Insect and Arachnid Ecology and Behavior
- Animal Ecology and Behavior Studies
- Weed Control and Herbicide Applications
- Allelopathy and phytotoxic interactions
- Forest Insect Ecology and Management
- Plant Diversity and Evolution
- Plant Water Relations and Carbon Dynamics
- Insect Pest Control Strategies
- Polar Research and Ecology
- Insect and Pesticide Research
- Forest ecology and management
- Plant Taxonomy and Phylogenetics
- Tree Root and Stability Studies
- Genetic diversity and population structure
- Fern and Epiphyte Biology
- Seed Germination and Physiology
- Geology and Paleoclimatology Research
- Horticultural and Viticultural Research
- Botany and Plant Ecology Studies
- Plant and fungal interactions
Tarleton State University
2025
University of La Serena
2015-2024
University of Concepción
2012-2021
Universidad Católica del Norte
2012
Pontificia Universidad Católica de Chile
2007-2012
University of Chile
1996-2003
Swedish University of Agricultural Sciences
1999-2000
Abstract Species are the unit of analysis in many global change and conservation biology studies; however, species not uniform entities but composed different, sometimes locally adapted, populations differing plasticity. We examined how intraspecific variation thermal niches phenotypic plasticity will affect distributions a warming climate. first developed conceptual model linking niche breadth, providing five alternative scenarios that consistent with existing literature. Secondly, we used...
Phenotypic plasticity is commonly considered as a trait associated with invasiveness in alien plants because it may enhance the ability of to occupy wide range environments. Although evidence greater phenotypic invasive considerable, not yet conclusive. We used meta‐analysis approach evaluate whether plant species show than their native or non‐invasive counterparts. The outcome such interspecific comparisons be biased when phylogenetic relatedness taken into account. Consequently, pairs...
Summary Interannual variability in climatic conditions should be taken into account climate change studies semi‐arid ecosystems. It may determine differentiation phenotypic plasticity among populations, with populations experiencing higher environmental heterogeneity showing levels of plasticity. The ability to evolve key functional traits and the survival plant under drier more variable expected for Working Chilean shrub Senna candolleana along its entire distribution range, we assessed...
Abstract: Few non‐native species have colonized Antarctica, although increased human activity and accelerated climate change may increase their number, distributional range, effects on native the continent. We searched 13 sites maritime Antarctic islands 12 Peninsula for annual bluegrass (Poa annua), a flowering plant. also evaluated possible of competition between P. annua 2 vascular plants to pearlwort (Colobanthus quitensis) hairgrass (Deschampsia antarctica). grew in experimental plots...
Climbing plants require an external support to grow vertically and enhance light acquisition. Vines that find a suitable have greater performance fitness than those remain prostrate. Therefore, the location of is key process in life history climbing plants. Numerous studies on plant behaviour elucidated mechanistic details searching attachment. Far fewer addressed ecological significance support-finding factors affect it. Without this knowledge, little progress can be made understanding...
Interactions between plants and herbivores are central in most ecosystems, but their strength is highly variable. The amount of variability within a system thought to influence aspects plant-herbivore biology, from ecological stability plant defense evolution. Our understanding what influences variability, however, limited by sparse data. We collected standardized surveys herbivory for 503 species at 790 sites across 116° latitude. With these data, we show that within-population increases...
Key innovations are traits that associated with the particular evolutionary 'success' of some taxonomic groups. Climbing plants depend on availability physical support to reach canopy and thereby prevent shading by neighbouring plants. The present article shows evolution a climbing habit in flowering constitutes key innovation. A literature survey identified 48 pairs sister groups from 45 families for which information phylogenetic relationships, growth species richness was available. In 38...
Phenotypic plasticity is traditionally defined as the capacity of a given genotype to render alternative phenotypes under different environmental conditions. Some studies focus on individual study 'true' phenotypic plasticity, regardless level ecological organization involved in each particular study. We argue that, depending research question and scale, there are advantages looking beyond genetic identity phenotype when addressing plasticity. This broad approach may simplify experimental...
Fire is a major disturbance affecting ecosystems worldwide. Phylogenetic studies have shown that the evolution of seed persistence (fire resistance) associated with fire frequency or severity. However, existence specific traits resulting from natural selection mediated by remains key question in plant evolution. We evaluated role microevolutionary perspective, using as study system native forb Chilean matorral, where novel, anthropogenic disturbance. show fires are shaping such pubescence...
Tropical forests are experiencing structural changes that may reduce carbon storage potential. The recent increase in liana abundance and biomass is one such potential change. Lianas account for approximately 25 per cent of woody stems have a strong impact on tree dynamics because severe infestation reduces growth increases mortality. Based forest inventory data from 0.1 ha plots, we evaluated the association between above-ground stocks 145 tropical worldwide. Liana was negatively associated...
Ecological theory predicts that a generalist strategy should be more favored in changing environments than stable environments. I tested whether phenotypic plasticity is greater plants from temporally heterogeneous habitat homogeneous habitat. In addition, evaluated the environmental heterogeneity of original influences relationship between stress and integration, i.e., degree correlation among traits. The perennial weed Convolvulus arvensis L. was used as model species. Plants were...
Phenotypic plasticity is essential for plant adaptation to changing environments but some factors limit its expression, causing plants fail in producing the best phenotype a given environment. integration refers pattern and magnitude of character correlations it might play role as an internal constraint phenotypic plasticity. We tested hypothesis that – estimated number significant between traits constrains plants. The rationale that, any trait, more linked with other is, limited range...
Abstract Question: In a southern temperate rain forest, we addressed three questions: (1) Does the abundance of climbing plants increase with light availability? (2) Do host tree species differ in their susceptibility to vine infestation? (3) How does relationship between trunk diameter and relative vines vary mechanism? Location: Two sites evergreen forest Chile: Puyehue (40°39′S, 72°09′W; 350 m a.s.l.) Pastahue (42°22′S, 73°49′W; 285 a.s.l.). Methods: We sampled 60 25‐m 2 plots, 20 plots...
The resource availability hypothesis (RAH), the most successful theory explaining plant defence patterns, predicts that investment is related to relative growth rate (RGR) of species, which associated with habitat quality. Thus, fast-growing species should show lower resistance than slow-growing would lead fast growers sustain higher herbivory rates, but fitness consequences be greater for slow growers. latter often assumed rarely tested. In a temperate rainforest, we tested expected pattern...