# Browse Dissertations and Theses - Natural Resources and Environmental Sciences by Title

• (2014-05-30)
Grassland bird populations have experienced steep declines across North America, with especially precipitous declines in the Midwest. The primary cause of these declines is thought to be loss and fragmentation of grassland ...

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• (2010-08-20)
Overabundant white-tailed deer herds often have negative impacts on forests such as impeding future regeneration of woody species, and extirpating spring wildflowers. Direct conflicts with humans also arise in the form of ...

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• (2013-05-24)
Coyote management in urban areas has become a concern for wildlife professionals. In the Greater Chicago Metropolitan Region (GCMR) wildlife professionals have received an increased number of complaints from residents. ...

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• (2014-01-16)
Colletotrichum species are filamentous fungi. Many species are important pathogens causing economic losses on a wide range of crop plants. Diseases caused by Colletotrichum species often are referred to as anthracnose. ...

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• (2012-06-27)
Species are the currency of biodiversity and an accurate recognition of their status is a scientific necessity, particularly given the onset of the Anthropocene (the most recent biodiversity crisis). Yet, concept-based ...

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• (2010-05-18)
Parents play an important role in creating phenotypic variation in their offspring through genetic and environmental mechanisms. For example, mothers can influence their offspring via hormonally-mediated maternal effects. ...

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• (2013-05-24)
Fundamental to understanding species ecology, is the evaluation of predator-prey interaction strengths and their spatial heterogeneity. Traditional dietary assessment methods of examining individual’s stomach contents ...

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• (2011-05-25)
Juvenile survival is among the most important demographic parameters driving population dynamics in birds. However, because first-year (i.e. 1-year-old) migratory passerines are thought to return to breed at great distances ...

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• (2013-08-22)
Predation is the leading cause of nest failure for many birds and is an important source of natural selection that shapes avian behavior and life-history traits. However, our understanding of the relationship between habitat ...

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• (2015-01-21)
Current declines in shrubland bird populations and habitats in eastern North America highlight the importance of understanding the nesting ecology of shrubland birds. The majority of the literature on shrubland birds has ...

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• (1996)
The research in this thesis is made up of three related experiments, each concerned with nitrate (NO$\sb{3-})$ accumulation and reduction in hydroponically-grown lettuce (Lactuca sativa L.), and its relationship to various ...

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• (1996)
Three independent but interrelated experiments were conducted to investigate the effects of growing media, irrigation systems and NO3-N concentrations on geranium (Pelargonium hortorum) stock plant production cv "Yours ...

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• (2010-05-19)
Yellow-breasted Chats (Icteria virens) are a Neotropical migratory bird species that breeds in shrubland habitat in Illinois. Chats are a diurnally active species but males are known to sing often at night. This behavior ...

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• (2014-05-30)
Agricultural nutrient loss (N and P) from the Midwestern United States is an important issue, especially from tile drained land. There are a wide range of in-field and edge-of-field practices to reduce losses that have ...

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• (2014-09-16)
Anthropogenic alterations to terrestrial habitat (e.g., urbanization, deforestation, agriculture) can have a variety of negative effects on riverine systems that flow through disturbed landscapes. These in-stream changes ...

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• (2010-05-18)
The distribution of Ixodes scapularis and Borrelia burgdorferi has continued expanding in Illinois over the past twenty years. However, the extent to which this tick vector and etiologic agent of Lyme disease has spread ...

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• (2012-02-06)
Wetlands are vital ecosystems that provide a wide range of services. Much attention has been focused on wetlands’ ability to retain and remove pollutants, in particular nitrogen, from streams and waterways. For example, ...

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• (2010-08-31)
Phytoecdysteroids are plant-produced polyhydroxylated steroidal compounds that have valued bioactivities including plant defense against herbivorous insects, and growth and performance-enhancing properties in mammals. In ...

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• (2014-09-16)
Aquatic ecosystems and their inhabitants face a long list of threats to their well-being, and the effects of current stressors as well as those that may occur in the future must be assessed for their impact on these systems. ...

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• (2013-02-03)
The demand for energy has been increasing, and petroleum and coal will remain the two major energy sources around the globe. In addition, alternative sources for crude-oil-based liquid fuels, such as biofuels, are also ...

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