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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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. ...

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 ...

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 ...