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Browse Dissertations and Theses - Prairie Research Institute by Title
Now showing items 20-39 of 199
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(2014-05-30)This dissertation contextualizes religion and complexity as it influenced the emergence of the city of Cahokia through an exploration of ridge-top mortuary practices across the three precincts of Cahokia, East St. Louis ...
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(2018-04-15)Animal manure and domestic wastewater contain chemicals of emerging concern (CECs) that can threaten ecosystems and human health. For instance, estrone (E1) and 17β-estradiol (E2) can disrupt the reproductive biology of ...
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(2015-07-16)The earth tongue fungi are a relatively small but captivating group of fungi that have fascinated mycologists for over three hundred years. From the first mention of “Fungus ophioglossoides” in 1667 to the latest molecular ...
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(2015-01-21)Bighead carp (Hypophthalmichthys nobilis) are invasive, filter-feeding planktivores that established in the Mississippi River Basin following their unintentional introduction in the early 1970s. Their subsequent expansion ...
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(2011-05-25)Metapopulation biology has been integral for understanding the impact of spatial habitat structure on ecological and evolutionary processes. In fragmented landscapes, theory predicts that species occupancy and turnover ...
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(2011-01-14)The Yellow Mud Turtle, Kinosternon flavescens, is listed as state endangered in Illinois and has suffered severe declines throughout its Midwest range. Trapping surveys were performed to document the presence and distribution ...
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(Illinois Natural History Survey, 2015-10-09)It will be important for land managers, ecological researchers and policymakers to understand how predicted climate changes may affect the flora of Illinois. A climate change vulnerability assessment was completed in 2011 ...
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(2015-04-24)As a result of the precipitous loss of grasslands and savannas that the Midwestern U.S. has experienced, populations of many species native to this habitat have declined. One such species is the barn owl, Tyto alba, which ...
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(2013-05-24)Recent molecular phylogenetic studies have revealed that Collembola diversity estimates based on morphological characters have been greatly underestimated. High levels of DNA sequence divergence among congeneric species ...
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(2013-05-28)A phylogeny of the genus Aphis was built primarily from specimens collected in the Midwest of USA. A topology using UPGMA were constructed with 73 taxa and forty-one morphological characters with their character states of ...
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(2012-02-06)Benthic food webs are complex and often poorly understood. Crayfish in particular play a key role in the transfer of energy to higher trophic levels, and can constitute the highest proportion of benthic invertebrate biomass ...
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(2016-04-20)The following thesis comprises three parts: (1) the description of a new fossil assassin bug, (2) the use of this newly described taxon to inform the phylogenetic history of the family, and (3) a survey of previously-described ...
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(2015-01-21)In recent decades, the conversion of natural habitat to human use has proceeded at a greatly accelerated pace. This habitat destruction and degradation has resulted in the loss of much of the world's biodiversity. Some ...
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(2018-03-09)The Spotted Turtle (Clemmys guttata) has been well-documented and studied at two locations in Will County, Illinois, since 1987. Although spatial and reproductive ecology are relatively well understood, there remains no ...
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(2012-02-06)The use of nitrogenous fertilizers to amend soil fertility has had a drastic effect on the global nitrogen cycle as excess nitrogen has contaminated surface waters, leading to marine hypoxic zones. One of the largest ...
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(2014-01-16)Standardized sampling methods for assessing the community structure and health of stream fisheries, freshwater mussels, and insects have been used for several decades. However, such methods are woefully lacking for crayfish. ...
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(2015-10-30)Human modification of the landscape, including urbanization and road construction, has facilitated the spread and establishment of non-native plant species. Urban areas have often been introduction points for species and ...
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(2017-12-14)North America harbors an exceptionally high number of rare or narrowly distributed crayfishes, and many of these species are threatened with displacement by a variety of biological, chemical, and physical factors. Detailed ...
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(2000)I also determined whether parents or offspring control the quantity of investment in offspring. Big brown bat mothers allocated resources differently to their sons and daughters and directed higher levels of aggression ...
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(2010-05-19)Research from the last two decades has elucidated the importance of migration in the annual cycle of ducks, but many aspects of migration ecology remain poorly understood due to the difficulty of investigating movements ...
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Now showing items 20-39 of 199