Index Catalog // Arch : Northwestern University Institutional Repository

Assessing Restoration Potential of Native Forbs from Cheatgrass-Dominated Habitats

Description:: After large-scale disturbances such as fire, seeding can be necessary to reestablish a plant community and prevent soil erosion. While native plants are ideal for providing ecosystem services and supporting wildlife, currently seeded natives often fail to establish in disturbed landscapes. Further, reseeding with native plants is often hindered by...
Keyword:: plant biology
Creator:: Barak, Rebecca
Owner:: Chris Diaz
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/13/2017
Date Modified:: 11/08/2023
Date Created:: 2012-09-07
Resource Type:: Masters Thesis

Potential effects of climate change on Penstemon Palmeri at Zion National Park, Utah USA

Description:: Climate change, whether referring to historic ice ages or contemporary shifts in global climate patterns, has been linked to wide-ranging and regionally variable changes in biotic communities.
Keyword:: plant biology
Subject:: plant biology
Creator:: Booth, Emily
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/14/2017
Date Modified:: 11/08/2023
Date Created:: 2011-07-08
Resource Type:: Masters Thesis

Investigating the drivers of floral trait polymorphism in Castilleja Coccinea (L.) Sprengel (Orobanchaceae)

Description:: Understanding the factors that drive the maintenance of polymorphisms in plant populations has long been of interest to evolutionary biology. Variation in floral traits has often been attributed to selection by pollinators, but recent evidence suggests that other biotic and abiotic agents may also contribute to floral trait differentiation. In...
Keyword:: plant biology
Subject:: plant biology
Creator:: Braum, Anna
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/14/2017
Date Modified:: 11/08/2023
Date Created:: 4/4/14
Resource Type:: Masters Thesis

The Prairie Underground: Soil Recovery in Chicago Wilderness Restoration

Description:: The tallgrass prairie once dominated much of the mid-western United States. Today, this highly productive system has been severely reduced, contributing to an array of environmental problems. The recent renaissance in natural area restoration and stewardship of the tallgrass prairie in the Chicago Wilderness region (Illinois, USA), especially in the...
Keyword:: plant biology
Subject:: plant biology
Creator:: Palmer, Corey
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/14/2017
Date Modified:: 11/08/2023
Date Created:: 2014-05-16
Resource Type:: Masters Thesis

Hygroscopic awns of two prairie grasses, Andropogon gerardii and Sorghastrum nutans

Description:: The prairie grasses Andropogon gerardii and Sorghastrum nutans have seeds with awns that twist in response to changes in humidity. The humidity-sensitive, or hygroscopic, part of the awn twists, moving the bent, passive portion in an arc. This trait has been demonstrated to improve seedling recruitment in other grass species...
Keyword:: plant biology
Subject:: plant biology
Creator:: Drizin, Joshua Michael
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/14/2017
Date Modified:: 11/08/2023
Date Created:: 2013-05-16
Resource Type:: Masters Thesis

Plant performance in prairie restorations: does seed source matter?

Description:: Restoration managers may select seed from a variety sources for their restoration projects. If the purchased seed is not of the local ecotype, land managers run the risk of poor establishment in the short-term and outcrossing between local and non-local ecotypes, genetic swamping, and the loss of local genetic diversity...
Keyword:: plant biology
Subject:: plant biology
Creator:: Gallagher, Megan Katherine
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/14/2017
Date Modified:: 11/08/2023
Date Created:: 2011-05-24
Resource Type:: Masters Thesis

Habitat requirements and restoration targets for secretive marsh birds in southeastern Wisconsin

Description:: Due to concerns about population declines and habitat destruction, secretive marsh birds (SMBs) are of high conservation concern at state, regional, and national levels. Gaps in research on SMB habitat pose barriers to conservation and wetland restoration efforts.
Keyword:: plant biology
Subject:: plant biology
Creator:: Glisson, Wesley James
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/14/2017
Date Modified:: 11/08/2023
Date Created:: 2012-10-04
Resource Type:: Masters Thesis

The effect of prescribed fire history on belowground processes in tallgrass prairie

Description:: Fire is an agent of ecosystem change that has played a critical role in shaping the tallgrass prairie ecosystem. Periodic prescribed fire maintains the prairie by removing woody and invasive plant species, and stimulating growth of native herbaceous species. Fire’s beneficial effect on the tallgrass prairie aboveground community, in terms...
Keyword:: plant biology
Subject:: plant biology
Creator:: Gross, Rachel
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/14/2017
Date Modified:: 11/08/2023
Date Created:: 2008-10-20
Resource Type:: Masters Thesis

Ectomycorrhizal community recovery in a Quercus savanna following restoration from a Rhamnus cathartica invasion

Description:: Once widespread throughout southern Wisconsin, Quercus savannas are now one of the most endangered communities due to fire suppression and increasing landscape fragmentation. These plant communities are also highly susceptible to invasions by nonnative, exotic species. Understanding the mechanisms of exotic species invasion has been the focus of numerous studies....
Keyword:: plant biology
Subject:: plant biology
Creator:: Hevey, Robert
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/14/2017
Date Modified:: 11/08/2023
Date Created:: 2014-04-24
Resource Type:: Masters Thesis

A morphological, molecular and experimental assessment of the conservation status of Great Lakes sea-rocket (Cakile edentula var, Lacustris, Brassoicaceae)

Description:: Hybridization is an important evolutionary pathway to genetic diversity, fitness, and ultimately to the emergence of new species. In contrast, hybridization between a native and an introduced species can lead to a loss of locally adapted gene complexes and ultimately to the extinction of the native. In the last decade,...
Keyword:: plant biology
Subject:: plant biology
Creator:: Huebner, Diane C.
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/14/2017
Date Modified:: 11/08/2023
Date Created:: 2009-05-04
Resource Type:: Masters Thesis

Transcriptome Analysis of Domesticated Breadfruit and Its Wild Relatives

Description:: Underutilized crops have the potential to economically benefit developing countries and to improve global food security. Breadfruit (Artocarpus altilis, Moraceae) is one such crop that can provide essential nutrients and requires relatively low-energy input to maintain compared to major crops. Humans have selected for many cultivars of breadfruit since its...
Keyword:: plant biology
Subject:: plant biology
Creator:: Laricchia, Kristen
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/14/2017
Date Modified:: 11/08/2023
Date Created:: 2014-12-05
Resource Type:: Masters Thesis

Pollen limitation of native species on Chicago green roofs

Description:: With increasing urbanization and creation of novel habitat types, green roofs can provide usable habitat for many species. To date, most research on green roofs has focused on minimizing the environmental impacts of buildings but little is known about the ecological services they provide. Previous research has shown that although...
Keyword:: plant biology
Subject:: plant biology
Creator:: Ksiazek, Kelly
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/14/2017
Date Modified:: 11/08/2023
Date Created:: 2011-06-17
Resource Type:: Masters Thesis

Diversity and origins of an underutilized tropical fruit tree, cempedak (Artocarpus integer, Moraceae), and its wild relative bangkong (Artocarpus integer var. silvestris)

Description:: The underutilized tropical fruit tree, “cempedak” (Artocarpus integer (Thunb.) Merr. , Moraceae), is a major crop in Malaysia but the distribution of genetic diversity in the crop and its putative wild progenitor, “bangkong” (Artocarpus integer var. silvestris Corner), have not been studied. To investigate the diversity and origins of cempedak,...
Keyword:: plant biology
Subject:: plant biology
Creator:: Wang Mei Hua, Maria
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/14/2017
Date Modified:: 11/06/2023
Date Created:: 2014-11-20
Resource Type:: Masters Thesis

Transforming gardening motivations into conservation efforts

Description:: The introduction of non-native pests in general, and invasive plants in particular, has been receiving increasing interest by scientists, environmental groups, and to a certain extent the general public. Deleterious effects from the release of such alien species include threats to the environment, national economies, and even human health. The...
Keyword:: plant biology
Subject:: plant biology
Creator:: Madeja, Glen
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/14/2017
Date Modified:: 11/06/2023
Date Created:: 2010-05-05
Resource Type:: Masters Thesis

Observational and experimental approaches to understanding the relationship between a long-lived perennial and its specialist aphid in fragmented habitat

Description:: Plant-aphid systems provide a valuable opportunity for studying the ecological consequences of land use change for interacting species. The North American tallgrass prairie has undergone severe reduction and fragmentation due to agricultural development. The prairie perennial Echinacea angustifolia, a model system for studying population-level effects of habitat fragmentation, hosts a...
Keyword:: plant biology
Subject:: plant biology
Creator:: Muller, Katherine
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/14/2017
Date Modified:: 11/06/2023
Date Created:: 2013-05-15
Resource Type:: Masters Thesis

Seasonal variation of key soil characteristics of a tallgrass prairie along a restoration gradient

Description:: Current ecological restoration efforts seek to restore a target community, maximize biodiversity or provide habitat for rare species. In practice, restoration ecology is often initiated and sustained without knowledge or reverence to the belowground ecosystem processes, though these processes often subtend the long-term sustainability of aboveground and belowground ecological communities.
Keyword:: plant biology
Subject:: plant biology
Creator:: Umek, Lauren G.
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/14/2017
Date Modified:: 11/06/2023
Date Created:: 2007-05-15
Resource Type:: Masters Thesis

Excess and limitation of soil resources in Illinois communities of Cypripedium Candidum (Orchidaceae), the unexpected relationship between soil character, mycorrhizal colonization and photosynthesis

Description:: The environmental and plant physiological correlates of plant growth and reproductive effort in the locally threatened orchid, Cypripedium candidum Muhl. ex Willd were examined in the context of a conceptual model of demographic and reproductive trade-offs, focusing on three Illinois populations. This study addresses the current status and long-term trends...
Keyword:: plant biology
Subject:: plant biology
Creator:: Nies, Anne
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/14/2017
Date Modified:: 11/06/2023
Date Created:: 2014-05-02
Resource Type:: Masters Thesis

Functional response of ectomycorrhizal fungal community to nitrogen deposition on slash pine (Pinus elliotti) plantation in south-central China

Description:: Nitrogen (N) deposition can alter belowground microbial communities, especially ectomycorrhizal (ECM) fungi, resulting in a reduced ability of associated trees to access organic nutrients. This study tested whether N addition decreases ECM species richness and shifts ECM species composition across spatial scales in a subtropical slash pine (Pinus elliottii) plantation...
Keyword:: plant biology
Subject:: plant biology
Creator:: Ning, Chen
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/14/2017
Date Modified:: 11/06/2023
Date Created:: 2014-07-17
Resource Type:: Masters Thesis

Spatial and genetic structure and nonrandom pollination success in Oenothera harringtonii (Onagraceae)

Description:: Identifying factors that shape the spatial distribution of genetic variation within and among natural populations is crucial to understanding many population> and landscape>level processes. In this study, I characterize the strength and extent of spatial genetic structure in Oenothera harringtonii (Onagraceae), an insect>pollinated, gravity>dispersed herb endemic to the grasslands of...
Keyword:: plant biology
Subject:: plant biology
Creator:: Rhodes, Matthew Kent
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/14/2017
Date Modified:: 11/06/2023
Date Created:: 2013-09-26
Resource Type:: Masters Thesis

Quantitative genetics in a fragmented landscape: a study of heritable floral traits in Oenothera harringtonii (Onagraceae)

Description:: Habitat fragmentation can alter the conditions of natural plant populations, introducing novel selective pressures. The ability of a population to respond to environmental change can be inferred by assessing the population’s genetic diversity and the heritability of traits thought to be under selection.
Keyword:: plant biology
Subject:: plant biology
Creator:: Rivera, Ricardo
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/14/2017
Date Modified:: 11/06/2023
Date Created:: 2013-05-13
Resource Type:: Masters Thesis

Climate change impacts on a native endemic thistle, Cirsium pitcheri

Description:: Two experiments were conducted to assess the germination, growth, and survival of Cirsium pitcheri Torr. ex Eaton T & G in the Chicagoland region. The first experiment involved growing seeds from various native populations to determine tolerance for the current Chicagoland climate. The second experiment tested three of the populations...
Keyword:: plant biology
Subject:: plant biology
Creator:: Staehlin, Benjamin
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/14/2017
Date Modified:: 11/06/2023
Date Created:: 2009-04-29
Resource Type:: Masters Thesis

Does style persistence measure pollen limitation in perennial Helianthus?

Description:: Pollination is a reproductive necessity in the majority of the world’s flowering plants. Pollen limitation threatens plant reproduction, particularly in self-incompatible species. Although assessing pollen limitation usually requires pollen supplementation experiments, alternative methods support the findings of traditional pollen supplementation experiments.
Keyword:: plant biology
Subject:: plant biology
Creator:: Taira, Karen Elizabeth
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/14/2017
Date Modified:: 11/06/2023
Date Created:: 2013-10-29
Resource Type:: Masters Thesis

Chicago bees: green roofs, parks and prairies

Description:: Pollination is a reproductive necessity in the majority of the world’s flowering plants. Pollen limitation threatens plant reproduction, particularly in self-incompatible species. Although assessing pollen limitation usually requires pollen supplementation experiments, alternative methods support the findings of traditional pollen supplementation experiments.
Keyword:: plant biology
Subject:: plant biology
Creator:: Tonietto, Rebecca K.
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/14/2017
Date Modified:: 11/06/2023
Date Created:: 2009-04-28
Resource Type:: Masters Thesis

Environmental factors affecting woodland legume restoration

Description:: Past efforts to reintroduce the native legume species Desmodium glutinosum and Lespedeza violacea into restored woodlands have not produced self-sustaining populations. Proposed factors preventing reintroduction include herbivory, persistent environmental effects of invasive shrubs, poor performance of commercial Rhizobium inoculants, and competitive displacement associated with elevated nitrogen availability. To address these...
Keyword:: plant biology
Subject:: plant biology
Creator:: Tsang, Byron Yan
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/14/2017
Date Modified:: 11/06/2023
Date Created:: 2012-11-27
Resource Type:: Masters Thesis

Genetic diversity of Bangladeshi jackfruit (Artocarpus heterophyllus, Moraceae)

Description:: The Moraceae family includes several species producing edible fruits, including mulberry, fig, breadnut, and osage-orange.
Keyword:: plant biology
Subject:: plant biology
Creator:: Witherup, Colby
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/14/2017
Date Modified:: 11/06/2023
Date Created:: 2013-05-13
Resource Type:: Masters Thesis

Genetic diversity and population structure of three tree species across an urban to remnant landscape gradient

Description:: Trees in urban areas offer ecosystem services like carbon sequestration, storm water attenuation, reduction of energy used in buildings and wildlife habitat. Cities invest substantial funds and resources to maintain a healthy urban forest, and much research has been done to improve its resiliency and sustainability. Studies have been done...
Keyword:: plant biology
Subject:: plant biology
Creator:: Darling, Lindsay E.
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 06/14/2017
Date Modified:: 02/04/2019
Date Created:: 2013-09-04
Resource Type:: Masters Thesis
Alternate Identifier:: http://hdl.handle.net.DL/repo-pbmt-darling

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Assessing Restoration Potential of Native Forbs from Cheatgrass-Dominated Habitats

Potential effects of climate change on Penstemon Palmeri at Zion National Park, Utah USA

Investigating the drivers of floral trait polymorphism in Castilleja Coccinea (L.) Sprengel (Orobanchaceae)

The Prairie Underground: Soil Recovery in Chicago Wilderness Restoration

Hygroscopic awns of two prairie grasses, Andropogon gerardii and Sorghastrum nutans

Plant performance in prairie restorations: does seed source matter?

Habitat requirements and restoration targets for secretive marsh birds in southeastern Wisconsin

The effect of prescribed fire history on belowground processes in tallgrass prairie

Ectomycorrhizal community recovery in a Quercus savanna following restoration from a Rhamnus cathartica invasion

A morphological, molecular and experimental assessment of the conservation status of Great Lakes sea-rocket (Cakile edentula var, Lacustris, Brassoicaceae)

Transcriptome Analysis of Domesticated Breadfruit and Its Wild Relatives

Pollen limitation of native species on Chicago green roofs

Diversity and origins of an underutilized tropical fruit tree, cempedak (Artocarpus integer, Moraceae), and its wild relative bangkong (Artocarpus integer var. silvestris)

Transforming gardening motivations into conservation efforts

Observational and experimental approaches to understanding the relationship between a long-lived perennial and its specialist aphid in fragmented habitat

Seasonal variation of key soil characteristics of a tallgrass prairie along a restoration gradient

Excess and limitation of soil resources in Illinois communities of Cypripedium Candidum (Orchidaceae), the unexpected relationship between soil character, mycorrhizal colonization and photosynthesis

Functional response of ectomycorrhizal fungal community to nitrogen deposition on slash pine (Pinus elliotti) plantation in south-central China

Spatial and genetic structure and nonrandom pollination success in Oenothera harringtonii (Onagraceae)

Quantitative genetics in a fragmented landscape: a study of heritable floral traits in Oenothera harringtonii (Onagraceae)

Climate change impacts on a native endemic thistle, Cirsium pitcheri

Does style persistence measure pollen limitation in perennial Helianthus?

Chicago bees: green roofs, parks and prairies

Environmental factors affecting woodland legume restoration

Genetic diversity of Bangladeshi jackfruit (Artocarpus heterophyllus, Moraceae)

Genetic diversity and population structure of three tree species across an urban to remnant landscape gradient

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