Stable isotopes of carbon, nitrogen, and sulfur are used as ecological tracers for a variety of
applications, such as studies of animal migrations, energy sources, and food web pathways …

Stable isotope analysis (SIA) is widely used to assess animal diet and movements, requiring
accurate estimates of trophic discrimination factors (TDFs). Since TDFs are only available for …

Migratory and mobile fishes such as summer flounder (Paralichthys dentatus) often utilize
dietary resources with stable isotope signatures that vary over time and space, potentially …

Predators are increasingly recognized as key elements in food webs because of their ability
to link the fluxes of nutrients and energy between spatially separated food chains. However …

Carbon and nitrogen stable isotope analyses have improved our understanding of food
webs and movement patterns of aquatic organisms. These techniques have recently been …

Stable isotopes can illuminate resource usage by organisms, but effective interpretation is
predicated on laboratory validation. Here we develop stable isotope clocks to track resource …

Quantitative tools to describe biological communities are important for conservation and
ecological management. The analysis of trophic structure can be used to quantitatively …

Stable isotopes are widely employed to describe energy flow in aquatic communities,
though interpretation of results can be confounded by the fact that organisms integrate over …

Food webs represent the paths of material and energy flow through organisms in an
ecosystem. Anuran larvae are important components of pond food webs: they are abundant …

Abstract Invasions of Ponto-Caspian gobiid fishes are suspected to cause regime shifts in
freshwater ecosystems. This study compared the trophic niche differentiations of Neogobius …