A5084144783- Rangeland and Wildlife Management
- Ecology and Vegetation Dynamics Studies
- Fire effects on ecosystems
- Plant and animal studies
- Allelopathy and phytotoxic interactions
- Landslides and related hazards
- Archaeology and Natural History
- Plant Water Relations and Carbon Dynamics
- Climate Change, Adaptation, Migration
- Mediterranean and Iberian flora and fauna
- Forest Biomass Utilization and Management
- Botany and Plant Ecology Studies
- Plant Taxonomy and Phylogenetics
- Species Distribution and Climate Change
- Plant Parasitism and Resistance
- Land Use and Ecosystem Services
- Water Governance and Infrastructure
- Forest Insect Ecology and Management
- Environmental and Ecological Studies
- Seedling growth and survival studies
- Hydrology and Sediment Transport Processes
- Bioenergy crop production and management
- Forest ecology and management
- Sex work and related issues
- Remote Sensing in Agriculture
US Forest Service
2018-2024
Pacific Southwest Research Station
2018-2021
Hollister (United States)
2021
University of California, Santa Barbara
2008-2018
University of British Columbia
2017
California Polytechnic State University
2010
Abstract Background Forest and nonforest ecosystems of the western United States are experiencing major transformations in response to land-use change, climate warming, their interactive effects with wildland fire. Some transitioning persistent alternative types, hereafter called “vegetation type conversion” (VTC). VTC is one most pressing management issues southwestern US, yet current strategies intervene address change often use trial-and-error approaches devised after fact. To better...
Summary Non‐native species with growth forms that are different from the native flora may alter physical structure of area they invade, thereby changing resources available to resident species. This in turn can select for traits suited new growing environment. We used adjacent uninvaded and invaded grassland patches evaluate whether shift dominance a perennial bunchgrass, N assella pulchra , early season, non‐native annual grass, B romus diandrus affects structure, light, plant community...
Despite obvious impacts of nonnative species in many ecosystems, the long-term outcome competition between native and exotic often remains unclear. Demographic models can resolve provide insight into conditions favoring exclusion vs. coexistence. California grasslands are one most heavily invaded ecosystems North America. Although perennial bunchgrasses thought to be restricted a fraction their original abundance, eventual with invasive European annual grasses at local scale (competitive...
ABSTRACT Aim The drivers of shrubland biomass in the Mediterranean‐Climate Region southern California are not well understood. We aim to fill a critical information gap for resource managers shrub‐dominated landscapes who need estimate shrub recovery post‐fire, track and monitor carbon storage sequestration, determine tradeoff restoration goals between prioritising species richness. Location Southern California, USA. Methods Using data from 143 field plots located 11 fire scars (ranging 1 12...
Despite an enormous amount of attention paid to the factors that shape vulnerability human trafficking, such as poverty and a lack economic opportunity, debate evidence for what enables these exist in first place is relatively less explored. Presently, discussions relationship between climate change insecurity have been marginal broader debates about trafficking. This paper argues this signifies gap our understanding underlying drivers push individuals communities into situations where...
Abstract The increased occurrences of drought and fire may be contributing to the loss biodiverse ecosystems in Mediterranean regions. Specifically, conversion diverse native shrublands, such as chaparral, non‐native annual grassland by is great conservation concern California. To avoid or slow it important understand underlying causes landscape conversion. Studies investigating interaction multiple potential drivers are particularly crucial identification vulnerable areas landscape. Here we...
Research Natural Areas (RNAs) are federal lands designated to protect exemplary, relatively undisturbed ecosystems where ecological processes may proceed unencumbered with minimal human intervention. Ideally, RNAs serve as properly functioning reference sites for more heavily managed landscapes. However, many have been modified some degree by past and ongoing actions. In the western United States, these actions commonly result in altered disturbance regimes, most notably fire. Ecological...
The Mediterranean-type climate (MTC) regions of the world—the Mediterranean Basin, southwestern South Africa, southwest Australia, coastal central Chile, and California Floristic Province—support remarkable plant diversity convergent vegetation communities that share similar physiognomies functional characteristics (Rundel 2018). In California, chaparral vegetation, typified by evergreen sclerophyllous shrubs are ubiquitous in MTC regions, dominates wildland southern region accounting for...
When wildfires occur at sufficiently low frequencies, chaparral shrubland regenerates without the need for active restoration. However, with high fire frequency, particularly in conjunction other stressors, can require Here we present a Post‐fire Restoration Prioritization (PReP) tool shrublands which identifies priorities post‐fire restoration based on regeneration potential of shrubs and accounts history, drought tolerance, competition from annual grasses. We demonstrate Copper (2002)...
We performed a comparative analysis of defensive and nutritional plant traits responsible for differential herbivory in series experimental feeding trials with generalist herbivores. measured three (leaf strength, leaf mass per unit area endophytic fungal infection) two (foliar nitrogen water) 26 native eight non-native species from coastal California shrublands. Our involved herbivore (beet armyworm, cabbage looper the garden snail) types laboratory trial (single preference tests). All were...
Abstract Background Shrub-dominated ecosystems in California are widespread and provide invaluable ecosystem services to surrounding human-dominated communities. Yet shrublands, especially those at the wildland-urban interface, risk of degradation due increasing wildfire frequency. Strategically placed fuel breaks an important management technique for reducing fire neighboring communities natural landscapes. Fuel shrub-dominated typically linear features where woody biomass is reduced,...
Mediterranean-climate region (MCR) shrublands have evolved a set of regeneration strategies in response to periodic, high intensity wildfires: obligate seeding (OS), resprouting (OR), and facultative (FS) species. In the North American MCR, data on their spatial temporal variability is currently lacking, which significant information gap for resource managers. We developed multinomial model using dynamic static variables predict distribution three shrub post-fire strategies, plus trees...