The measurement of stable carbon (δ13C) and nitrogen (δ15N) isotopes in tissues of
organisms has formed the foundation of isotopic food web reconstructions, as these values …

Linking their major biotic and abiotic components, food webs form the core of ecosystems,
many of which are today exposed to multiple human impacts acting at several spatial and …

The recent expansion of natural abundance stable isotope methods has rapidly increased
our understanding of freshwater food web ecology. Investigators now routinely use stable …

Biofilm formation is controlled by an array of coupled physical, chemical, and biotic
processes. Despite the ecological relevance of microbial biofilms, their community formation …

Urbanization is dramatically changing nutrient and organic matter regimes in streams, yet
the community and ecosystem implications often remain obscure. We assessed the …

Carbon stable isotope ratios (δ 13 C) are widely used to trace resource transfer pathways,
yet δ 13 C variation in freshwater autotrophs is not yet fully understood. We have analyzed …

Use of the natural ratios of carbon and nitrogen stable isotopes as tracers of trophic
interactions has some clear advantages over alternative methods for food web analyses, yet …

Natural abundances of stable isotopes in lotic food webs yield valuable information about
sources of organic matter for consumers and trophic structure. However, interpretation of …

Our understanding of how forest management practices affect the relative importance of
autochthonous vs. allochthonous resource use by headwater stream food webs is relatively …

Relatively little is known regarding the extent of intermittent streams or the general ecology
of headwaters in alpine catchments with glacial influence. This study quantified the …