Analyses of stable isotope (δ 13 C and δ 15 N) and C: N ratios of food webs within a
floodplain and a constricted-channel region of the Ohio River during October 1993 and July …

We studied mechanisms by which zebra mussels may elevate densities of aquatic
invertebrates at local and lake-wide spatial scales in a productive lake. Locally, zebra …

Young-of-year piscivores typically undergo ontogenetic diet shifts from planktivory to
benthivory to piscivory. These shifts are often the result of changes in predator foraging …

Fresh waters worldwide receive substantial loadings of particulate organic waste from
municipal sewage collection and treatment works. This material may transport a wide variety …

ABSTRACT The Ponto-Caspian gammarids Dikerogammarus villosus SOVINSKIJ and
Echinogammarus ischnus STEBBING have invaded Central-European streams in the early …

An invasive benthivorous fish, the Eurasian round goby (Neogobius melanostomus) is
abundant throughout the lower Great Lakes–St. Lawrence River system. We examined the …

Environmental temperature and body size are two prominent drivers of predation. Despite
the ample evidence of their independent effects, the combined impact of temperature and …

The amphipod Echinogammarus ischnus was first reported in the Laurentian Great Lakes
during 1995. However, analysis of archived samples revealed the presence of the species …

Biological invasions continue to exert pressure on ecosystems worldwide and we thus
require methods that can help understand and predict the impacts of invasive species, on …

1. In a series of laboratory experiments, we assessed the predatory nature of the native Irish
amphipod, Gammarus duebeni celticus, and the introduced G. pulex, towards the mayfly …