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 ...

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 ...

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 ...

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 ...

Spring migration is an understudied, but important time for waterfowl as conditions faced during this period may affect reproductive success. Therefore, increasing our understanding of waterfowl ecology during spring is ...

The U.S. Environmental Protection Agency (USEPA) finalized its Clean Air Interstate Rule (CAIR) and Clean Air Visibility Rule emission regulations in 2005, to limit emissions of sulfur dioxide, nitrogen oxides and particulate ...