A5063356226- Ecology and Vegetation Dynamics Studies
- Plant and animal studies
- Plant Parasitism and Resistance
- Plant and fungal interactions
- Species Distribution and Climate Change
- Allelopathy and phytotoxic interactions
- Coastal wetland ecosystem dynamics
- Mycorrhizal Fungi and Plant Interactions
- Plant Pathogens and Fungal Diseases
- Wildlife Ecology and Conservation
- Fire effects on ecosystems
- Biological Control of Invasive Species
- Multisensory perception and integration
- Research in Social Sciences
- Seed Germination and Physiology
- Avian ecology and behavior
- Peatlands and Wetlands Ecology
- Human-Animal Interaction Studies
- Animal Vocal Communication and Behavior
- Social and Educational Sciences
- Agronomic Practices and Intercropping Systems
- Marine animal studies overview
- Forest ecology and management
- Environmental Conservation and Management
- Animal Ecology and Behavior Studies
Norwegian University of Life Sciences
2017-2024
North Carolina State University
2013-2019
Louisiana State University
2015-2016
Ecological Society of America
2016
Sierra Nevada Corporation (United States)
2016
University of Montana
2000-2015
The Nature Conservancy
2002
Invading exotic plants are thought to succeed primarily because they have escaped their natural enemies, not of novel interactions with new neighbors. However, we find that Centaurea diffusa , a noxious weed in North America, has much stronger negative effects on grass species from America than closely related communities which is native. 's advantage against American appears be due differences the its root exudates and how these affect competition for resources. Our results may help explain...
Abstract Interactions among species determine local‐scale diversity, but local interactions are thought to have minor effects at larger scales. However, quantitative comparisons of the importance biotic relative other drivers rarely made Using a data set spanning 78 sites and five continents, we assessed climate in determining plant diversity alpine ecosystems dominated by nurse‐plant cushion species. Climate variables related with water balance showed highest correlation richness global...
During the past 100 years, studies spanning thousands of taxa across almost all biomes have demonstrated that competition has powerful negative effects on performance individuals and can affect composition plant communities, evolution traits, functioning whole ecosystems. In this review, we highlight new important developments potential to greatly improve our understanding how plants compete consequences from communities in following major areas research: (a) mechanisms competition, (b)...
Summary 1. Interactions among plants and their consumers, pollinators dispersers are central to evolutionary theory, but interactions themselves have received much less attention. Thus focusing more attention on the role of plant–plant may provide greater insight into processes that organize communities. 2. Here, we integrate divergent themes in literature an effort a synthesis empirical evidence ideas about how plant affect evolution interactions. 3. First, discuss idea niche partitioning...
Competitive outcomes among plants can vary in different abiotic and biotic conditions. Here we tested the effects of two phylotypes Alternaria endophytes on growth, competitive effects, responses exotic invasive forb Centaurea stoebe. stoebe was a better competitor against North American grass species than grasses from its European home range absence endophytes. However, one endophyte both increased biomass C. reduced effect The native to America were enhanced by fungal endophytes, but not...
A fundamental assumption of coexistence theory is that competition inevitably decreases species diversity. Consequently, in the quest to understand ecological regulators diversity, there has been a great deal focus on processes with potential reduce competitive exclusion. However, notion must decrease diversity largely based outcome two-species interaction experiments and models, despite fact rarely interact only pairs natural systems. In field experiment, we found among native perennial...
Abstract Aim We studied the novel weapons hypothesis in context of broadly distributed tree species Eucalyptus globulus . evaluated that this Australian would produce stronger inhibitory effects on from its non‐native range than native range. Location worked four countries where is exotic (U.S.A., Chile, India, Portugal) and one country it (Australia). Time period 2009–2012. Major taxa Plants. Methods compared composition, richness height plant communities 20 paired plots underneath E....
When organisms interact in multi‐species groups, the direct effects of facilitation and competition can be modified by indirect interactions. We explored multispecies interactions among native Pinus ponderosa , invasive annual grass Bromus tectorum forb Centaurea stoebe intermountain prairie northern Rocky Mountains. is much less abundant under than surrounding open grassland more . found that fertile soil associated with facilitated both species did not alter competitive outcomes. litter...
Interactions between plants can have strong effects on community structure and function. Variability in the morphological, developmental, physiological, biochemical traits of influence outcome plant interactions thus important ecological consequences. However, ramifications trait variability are poorly understood rarely been tested field. We experimentally morphological variation root architecture Quercus douglasii trees field understory composition. Our results indicate that among Q. tree...
Alpine ecosystems are under increasing pressure from land‐use change and road construction, resulting in habitat fragmentation declines biodiversity ecosystem function. Ecosystem restoration can mitigate the impacts human by assisting recovery of natural ecosystems. We developed an assessment framework using established international standards monitored alpine vegetation within restored zones along a hydropower‐dam built 2013 Knutshø landscape protected area, Norway. Using data collected...
Habitat loss worldwide has led to the widespread use of restoration practices for recovery imperiled species. However, success may be hampered by focusing on plant communities, rather than complex suite direct and indirect interactions among trophic levels that occur in natural systems. Through a factorial field experiment, we tested effects wetland egg juvenile survival locally rare butterfly, Satyrodes appalachia, via tree removal damming. Tree more tripled S. appalachia host abundance,...
Habitat restoration frequently focuses on reaching an idealized steady state, but this is unrealistic for disturbance‐dependent ecosystems where temporal variability inherent and habitat conditions are expected to fluctuate. Understanding the ways in which outcomes of change over time can better inform adaptive management plans increase likelihood that efforts will be effective. We conducted a decade‐long experiment test how disturbance levels impact quality populations endangered butterfly...
Abstract Conservation strategies for threatened species frequently include habitat restoration, but the success of such recovery efforts has been mixed. When target is an insect herbivore, restoration have traditionally attempted to increase abundance its host plant, these actions' impact on plant quality largely ignored. Here, we test two forms tree removal and stream damming, physical chemical properties a wetland sedge adult traits larval consumer, butterfly. Tree altered in manner...
Understanding the role of competition in organization communities is limited part by difficulty extrapolating outcomes small-scale experiments to how such might affect distribution and abundance species. We modeled community-level competition, using experimentally derived competitive effects responses between an exotic invasive plant, Centaurea stoebe, species from both its native nonnative ranges changes these elicited establishing symbioses C. stoebe fungal endophytes. Using relative...