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Tree Removal From An Encroached Coastal Grassland Restores Soil Bacterial Communities Before Fungal Communities, Ka Ki Law
Master's Theses
Woody species encroachment depletes historic grassland biodiversity and degrades ecosystem function around the world. In particular, the encroaching trees can shift soil properties and microbial communities, which play critical roles in plant health and global nutrient cycling. Little is known about how removing encroached trees affects soil ecosystems, however. Over the last century, Pinus radiata and Hesperocyparis macrocarpa (non-native to the area) both encroached into coastal prairies at Rancho Corral de Tierra in California, and selected trees were removed in 2017 and 2018 to restore grassland habitats. To examine the impacts of encroachment and removal on the soil ecosystem, I …
Habitat Value Of Stormwater Retention Basins For Avian Species In The South San Francisco Bay, Maya D. Briones
Habitat Value Of Stormwater Retention Basins For Avian Species In The South San Francisco Bay, Maya D. Briones
Master's Theses
Shorebird populations are declining worldwide due to habitat fragmentation, degradation, and loss. A potential, understudied set of resources that might be used to benefit waterfowl, especially breeding shorebirds, are artificial wetlands such as stormwater retention basins. This study evaluated the habitat value of stormwater retention basins in the San Francisco Bay Area by measuring species abundance, richness, and behavior. Seston, or biota and other suspended material, was collected and tested for mercury contents. Additionally, the habitat features within each basin were recorded and tracked for changes over a year. The stormwater retention basins supported a higher diversity of bird species …
The Modern-Day Effect Of Holc Redlining On Neighborhood Development, Liubov Ivashov
The Modern-Day Effect Of Holc Redlining On Neighborhood Development, Liubov Ivashov
Master's Theses
Racial segregation, which happened more than one hundred years ago in the U.S., is a fundamental cause of economic inequality for people living in historically segregated neighborhoods today. Redlining was one form of federal policy that forced to separate communities by race even more after the Great Depression. The Home Owners Loan Corporation (HOLC) maps are widely used in economic research papers as one of the most comprehensive sources of data available to measure the effect of residential segregation. In this paper, using the Historical Redline Score (HRS) method, the author measured the association between modern-day population distribution, rent prices, …
Assessing Landscape Change In Highland Peru With An Emphasis On Tree Cover Change, 1948-2012, Timothy Guy Sutherlin
Assessing Landscape Change In Highland Peru With An Emphasis On Tree Cover Change, 1948-2012, Timothy Guy Sutherlin
Master's Theses
Tree cover change was examined around three cities in the central Andes of Peru, 1948-2012, using repeat photography, remote sensing, and ethnographic methods. Forest transition theory provided a framework to study the causes of the changes observed. The repeat photography results show that there were more trees on the landscape in 2012 than there were in 1948. There were increases in smaller groupings of trees visible in the photography that were associated with smallholder intensification in the form of new woodlots, field borders and dooryard trees. The remote sensing results show there was a significant increase in larger patches of …
Re-Discovering The Pre-Settlement Landscape: Making The Oak Savanna "Real", Reid M. Helford
Re-Discovering The Pre-Settlement Landscape: Making The Oak Savanna "Real", Reid M. Helford
Master's Theses
No abstract provided.
Burglary Targets: A Spatial Perspective In The Hyde Park-Kenwood Community Area, George Henry Myers
Burglary Targets: A Spatial Perspective In The Hyde Park-Kenwood Community Area, George Henry Myers
Master's Theses
No abstract provided.
Kin Relations Of The Aged: Possible Impact On Social Service Planning, Maria Siemaszko
Kin Relations Of The Aged: Possible Impact On Social Service Planning, Maria Siemaszko
Master's Theses
No abstract provided.
Community Composition, Family Structures, And The Juvenile Justice System, David J. Ross
Community Composition, Family Structures, And The Juvenile Justice System, David J. Ross
Master's Theses
No abstract provided.
A Comparison Of Correlation Matricies Of Nine Socio-Demographic Variables For The Bronx And For Seattle, 1960: An Empirical Test Of The Generality Of Schmid And Tagashira's Variables As Revelatory Of The Structure Of The Large Urban Community, Terrence R. Mcgovern
Master's Theses
No abstract provided.