A5049285078- Tree-ring climate responses
- Fire effects on ecosystems
- Ecology and Vegetation Dynamics Studies
- Plant Water Relations and Carbon Dynamics
- Botanical Research and Applications
- Species Distribution and Climate Change
- Marine and coastal plant biology
- Botany, Ecology, and Taxonomy Studies
- Conservation Techniques and Studies
- American Environmental and Regional History
- Landslides and related hazards
- Microbial Community Ecology and Physiology
- Forest ecology and management
- Environmental and Cultural Studies in Latin America and Beyond
- Plant Pathogens and Fungal Diseases
- Geography and Environmental Studies in Latin America
- Amphibian and Reptile Biology
- Rangeland and Wildlife Management
- Archaeology and Natural History
- Mexican Socioeconomic and Environmental Dynamics
- Lichen and fungal ecology
- Literature Analysis and Criticism
- Plant and animal studies
- Geology and Paleoclimatology Research
University of California, Berkeley
2022
Berkeley College
2022
Cabrillo College
2022
National Park Service
2020-2021
University of Arizona
2007-2011
Abstract Fire regimes in North American forests are diverse and modern fire records often too short to capture important patterns, trends, feedbacks, drivers of variability. Tree‐ring scars provide valuable perspectives on regimes, including centuries‐long year, season, frequency, severity, size. Here, we introduce the newly compiled tree‐ring fire‐scar network (NAFSN), which contains 2562 sites, >37,000 fire‐scarred trees, covers large parts America. We investigate NAFSN terms geography,...
Bigcone Douglas-fir (Pseudotsuga macrocarpa [Vasey] Mayr) is a long-lived, fire-adapted conifer that endemic to the Transverse Ranges of southern California. At lower and middle reaches its elevational distribution, isolated stands bigcone are surrounded by extensive chaparral. Our dendrochronology investigations have revealed these ancient trees commonly record multiple past fires as fire scars in their boles. We hypothesized fire-scar found within among reflects temporal spatial patterns...
Abstract We found no significant effect ( p > 0.38) of clipping surrounding non‐native annuals on the performance or survival plantings native Nassella pulchra . However, preplanting productivity three sites had a < 0.001) demography and water relations Survival was 85% lowest site it decreased by 6% for each additional 100 kg in average aboveground between 2,400 3,600 kg/ha. Plants experienced greater stress higher sites. Together, these results suggest that original habitat N. may...
Abstract Long‐term ecological monitoring provides valuable and objective scientific information to inform management decision‐making. In this article, we analyze 22 years of herpetofauna data from the Point Loma Ecological Conservation Area (PLECA), an insular urban reserve near San Diego, CA. Our analysis showed that counts individuals for one four most common terrestrial vertebrates declined, whereas other species increased or remained stable. Two exhibited declines in adult body length,...
Abstract Shaw's Agave ( shawii ssp. ) is an endangered maritime succulent growing along the coast of California and northern Baja California. The population inhabiting Point Loma Peninsula has a complicated history transplantation without documentation. low effective size in prompted agave transplanting from U.S. Naval Base site (NB) to Cabrillo National Monument (CNM). Since 2008, there are no sprouts identified on CNM site, concerns have been raised about genetic diversity this population....
Ceanothus verrucosus (CEVE) is a globally rare, long-lived, chaparral shrub endemic to coastal southern California (CA) and northern Mexico. There concern for CEVE persistence because of habitat loss, fire, climate change, yet little known about basic features the plant, including whether it contains annual rings, plant age, climate–growth response. Growth-ring analysis was challenging semi-ring-porous structure, false, missing rings. We successfully crossdated primarily from Cabrillo...
Author(s): Warneke, Alexandria; Lombardo, Keith; Ready, Michael | Abstract: This visual essay in "The Photographer's Frame" describes the restoration of oak and pine forests on an island Channel Islands National Park, California.
Author(s): Warneke, Alexandria; Lombardo, Keith; Ready, Michael | Abstract: This visual essay in "The Photographer's Frame" focuses on small life forms that are easily overlooked — which means their important contributions to ecosystems all too often undervalued.
Shaw's Agave (Agave shawii subsp. shawii) is a rare plant found in only handful of occurrences within the extreme southwestern corner USA highly urbanized region. Seedling recruitment California visibly low, and viable seed production appears to have been very low recent years, has identified as primary threat persistence these populations. We performed pollination trials, germination studies, inventoried floral visitors potential pollinators (including collection invertebrates) determine if...