488 Works

School Closures and Redistricting Can Reproduce Educational Inequality. Policy Brief Vol.3, No. 5

Daphne Penn

Exploitation, Poverty and Marginality among Unaccompanied Migrant Youth. Policy Brief Vol. 2, No. 12

Stephanie Lynnette Canizales

Ethnic Concordance May Not Promote Patient-centered Care. Policy Brief Vol.2, No.2

Roxana Bahar Ming-Cheng Miriam Lo

The Impacts of Gender and Income on Career and Technical Education. Policy Brief Vol.2, No. 5

Mary Cashen

Transitions into & out of Poverty in the United States. Policy Brief Vol.1, No.1

Ann Huff Stevens

Case Study of a Hybrid-Format College Course

Steven J Luck

Ano Nuevo Island Reserve

UCNRS
MISSION STATEMENT: The UC Natural Reserve System is a network of protected natural areas throughout California. Its 39 sites include more than 756,000 acres, making it the largest university-administered reserve system in the world. Most major state ecosystems are represented, from coastal tidepools to inland deserts, and lush wetlands to Sierra Nevada forests. The reserves also serve as a gateway to more than a million acres of public lands. Founded in 1965 to provide undisturbed...

Sierra Nevada Aquatic Research Laboratory

Information Manager UCNRS
MISSION STATEMENT: The UC Natural Reserve System is a network of protected natural areas throughout California. Its 39 sites include more than 756,000 acres, making it the largest university-administered reserve system in the world. Most major state ecosystems are represented, from coastal tidepools to inland deserts, and lush wetlands to Sierra Nevada forests. The reserves also serve as a gateway to more than a million acres of public lands. Founded in 1965 to provide undisturbed...

Sweeney Granite Mountains Desert Research Center

Information Manager UCNRS
The UC Natural Reserve System is a network of protected natural areas throughout California. Its 39 sites include more than 756,000 acres, making it the largest university-administered reserve system in the world. Most major state ecosystems are represented, from coastal tidepools to inland deserts, and lush wetlands to Sierra Nevada forests. The reserves also serve as a gateway to more than a million acres of public lands. Founded in 1965 to provide undisturbed environments for...

Landels-Hill Big Creek Reserve

Information Manager UCNRS
MISSION STATEMENT: The UC Natural Reserve System is a network of protected natural areas throughout California. Its 39 sites include more than 756,000 acres, making it the largest university-administered reserve system in the world. Most major state ecosystems are represented, from coastal tidepools to inland deserts, and lush wetlands to Sierra Nevada forests. The reserves also serve as a gateway to more than a million acres of public lands. Founded in 1965 to provide undisturbed...

McLaughlin Natural Reserve

Information Manager UCNRS
MISSION STATEMENT: The UC Natural Reserve System is a network of protected natural areas throughout California. Its 39 sites include more than 756,000 acres, making it the largest university-administered reserve system in the world. Most major state ecosystems are represented, from coastal tidepools to inland deserts, and lush wetlands to Sierra Nevada forests. The reserves also serve as a gateway to more than a million acres of public lands. Founded in 1965 to provide undisturbed...

SNRS - Yosemite Field Station

Information Manager UCNRS
MISSION STATEMENT: The UC Natural Reserve System is a network of protected natural areas throughout California. Its 39 sites include more than 756,000 acres, making it the largest university-administered reserve system in the world. Most major state ecosystems are represented, from coastal tidepools to inland deserts, and lush wetlands to Sierra Nevada forests. The reserves also serve as a gateway to more than a million acres of public lands. Founded in 1965 to provide undisturbed...

Merced Vernal Pools and Grassland Reserve

Information Manager UCNRS
MISSION STATEMENT: The UC Natural Reserve System is a network of protected natural areas throughout California. Its 39 sites include more than 756,000 acres, making it the largest university-administered reserve system in the world. Most major state ecosystems are represented, from coastal tidepools to inland deserts, and lush wetlands to Sierra Nevada forests. The reserves also serve as a gateway to more than a million acres of public lands. Founded in 1965 to provide undisturbed...

Penn World Table 9.1

Robert Inklaar Robert C. Feenstra

One-dimensional models of radiation transfer in heterogeneous canopies: a review, re-evaluation, and improved model

Brian Bailey, María Ponce De León & E. Scott Krayenhoff
This dataset contains the project files and data output for the publication: Bailey, Brian; Ponce de León, María; Krayenhoff, E. Scott (2019), One-dimensional models of radiation transfer in heterogeneous canopies: A review, re-evaluation, and improved model. The file main.cpp contains the main program that sets up and runs the simulations. Output files are stored in the 'output' directory. The current version of the Helios source code can be downloaded at https://www.github.com/PlantSimulationLab/Helios

Hyaluronic acid-binding, anionic, nanoparticles inhibit ECM degradation and restore compressive strength in aggrecan-depleted articular cartilage explants

Marcus Deloney, Alyssa Panitch, Blaine Christiansen, Parssa Garoosi & Vanessa Dartoura
Joint trauma results in the production of inflammatory cytokines that stimulate the secretion of catabolic enzymes which degrade articular cartilage. Molecular fragments of the degraded articular cartilage further stimulate inflammatory cytokine production with this process eventually resulting in post-traumatic osteoarthritis (PTOA). The loss of aggrecan is considered an early step in the progression of PTOA. Aggrecan, composed of a core protein linked to sulfated glycosaminoglycans (GAGs), associates with hyaluronic acid (HA) via a link protein....

Data From: Polygenic basis and the role of genome duplication in adaptation to similar selective environments

Matthew Campbell, Eric Anderson, John Carlos Garza & Devon Pearse
Genetic changes underlying adaptation vary greatly in terms of complexity and, within the same species, genetic responses to similar selective pressures may or may not be the same. We examine both complex (supergene) and simple (SNP) genetic variants occurring in populations of rainbow trout (Oncorhynchus mykiss) independently isolated from ocean access and compared them to each other and to an anadromous below-barrier population representing their ancestral source to search for signatures of both parallel and...

Cargo routing and disadvantaged communities

Anmol Pahwa & Miguel Jaller
Freight is fundamental to economic growth, however, the trucks that haul this freight are pollution intensive, emitting criteria pollutants and greenhouse gases at high rates. The increasing volume and time-sensitivity of freight demand over the past decade has encouraged carriers to take the fastest route, which is often not an eco-friendly route. The increase in urban freight movement has thus brought along negative externalities such as congestion, emissions, and noise into cities. Alternative fuel technologies,...

Bark characteristics affect epiphytic bryophyte cover across tree species

Devan Becker, Alistair Dobson & Kristen Klitgaard
Forest tree communities are shifting as a result of changes in regional climate and human management, which has cascading effects on other members of the community such as epiphytic bryophytes. Epiphytic bryophytes play important roles in ecosystem function, and their distribution is highly dependent on the characteristics of their substrate. To see how epiphytic substrate characteristics affect bryophyte abundance, we measured bark thickness, pH, and water holding capacity as it varied with bryophyte coverage on...

Impacts of fire suppression and drought stress on patterns of conifer mortality in eastern Sierra Nevada montane forest

Josh Brandt, John Laux, & Benjamin Weaver
In the age of fire suppression, a major killer of coniferous forests has shifted from wildfires to beetle infestations and drought stress. We examined a conifer forest in the Eastern Sierra Nevada to obtain demographic data on the area and to determine the factors affecting conifer mortality. We found a positive relationship between the number of boreholes and mortality across tree species. Bark beetle tree mortality in lodgepole pine (Pinus contorta) was related to density,...

Population and community-level impacts of increased fire frequency in serpentine chaparral

Miranda Martin, Casey Pfahler, Francesca Shackleford & Emily Wapman
Wildfires are natural processes that revitalize the native biodiversity of many habitats by clearing landscapes and creating sunlight rich areas with low competition. This process occurs in the serpentine chaparral of California, which is home to a variety of fire obligate seeders, including whiteleaf manzanita (Arctostaphylos viscida) and MacNab cypress (Cupressus macnabiana), as well as fire facultative seeders such as chamise (Adenostoma fasciculatum). In our study, we surveyed serpentine chaparral habitats in sites with different...

Formica ant and Cinara aphid mutualisms on limber pines (Pinus flexilis)

Charles Chen, Lori Liu &
Ant-aphid mutualisms play important ecological roles in many ecosystems. While Formica ants are well studied model organisms, pine-specialist Cinara aphids remain understudied. Moreover, there is little research on ant-aphid mutualism in subalpine ecosystems. We investigated multiple species of Formica ants and their mutualistic interactions with Cinara aphids on the limber pine Pinus flexilis in a subalpine ecosystem. Cinara apini colonies were found tended to by silver, black, and red Formica ants, and they occupy older...

Effects of volatile compounds in California bay trees (Umbellularia californica) on vegetation growth and insect herbivory

Ashley Adornato, Hannah Gerber, Sarah Haas & Jennifer Perez
Secondary metabolites are volatile compounds produced by plants that can be used as defense mechanisms for reducing stressors such as herbivory and competition. Leaves, roots, and stems of California bay trees (Umbellularia californica) get their notable aroma from secondary metabolites called monoterpenes, which are allelopathic constituents in many other plants, such as eucalyptus. In this study, we investigated the potential allelopathic and anti-herbivory effects of California bay trees by examining their understory composition, germination rates...

Acorn woodpeckers (Melanerpes formicivorus) exhibit more predator avoidance behavior post-fire

Emily Drake, , Youssef Hanna & Johnson Ku
Climate change has increased the frequency of wildfires globally. This increase in wildfires causes many animals to adjust their behaviors in order to cope with the more regular disturbances occurring in their habitats. It is often thought that birds are less affected by disturbances such as fire because of their ability to easily relocate by flying, but species with high levels of territoriality, such as acorn woodpeckers (Melanerpes formicivorus), may be more greatly affected by...

Bird community interactions at water sources at Hastings Natural History Reservation

Christina Cen, Killian Fay, Joselyne Jaramillo & Jason Ku
In seasonally dry areas, artificial water sources become a gathering place for a variety of avian species, leading to interactions between birds whose niches otherwise do not overlap. To maximize water use while reducing negative costs associated with conflict and predation, birds adopt anti-predation behaviors and engage in differing levels of tolerant and conflict interactions. In order to better understand how birds interact and behave at artificial water resources, we examined whether species and flock...

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