Despite anthropogenic nitrogen contributions, nitrogen fixation contributes half of biosphere inputs but has rarely been quantified in streams. Herbivory controls algal biomass and productivity in streams, and we hypothesized that herbivory could also control nitrogen fixation. We released periphyton from herbivory in nitrogen-limited Polecat Creek, Wyoming, where heavy grazing by the invasive New Zealand mudsnail (Potamopyrgus antipodarum) dominates nitrogen cycling. One and two weeks after releasing periphyton, we found higher rates of nitrogen fixation on heavily grazed rocks (two-way analysis of variance (ANOVA), p = 0.012). Time elapsed after snail manipulation had no effect (two-way ANOVA, p = 0.24). Grazing changed periphyton composi...
Invertebrate animals that live at the bottom of aquatic ecosystems (i.e., benthic macrofauna) are im...
Abstract. All aquatic organisms must assimilate the essential nutrient, nitrogen, which can be done ...
Habitats with fluctuating resource conditions pose specific challenges to plants, and they often fav...
Individual animal species can impact ecosystem processes, but few exotic animal species have demonst...
The effects of top-down (e.g., herbivory) and bottom-up (e.g., nutrient supply) processes on primary...
Accurately predicting the effects of introduced species on native commumtles and ecosystems is a cha...
BACKGROUND:Despite the large stocks of organic nitrogen in soil, nitrogen availability limits plant ...
Eutrophication in shallow lakes is characterized by a switch from benthic to pelagic dominance of pr...
Non-native species and habitat degradation are two major catalysts of environmental change and often...
Non-native species and habitat degradation are two major catalysts of environmental change and often...
Herbivorous fish negatively impact algal biomass and promote the growth of cyanobacteria. In nutrien...
In shallow lakes, submerged macrophytes can stabilise clear-water conditions and prevent phytoplankt...
We explored the dynamics of nitrogen fixation (N-fixation) in Cladophora mat assemblages in the Sout...
We investigated the independent and interactive effects of nutrient enrichment and snail grazing on ...
Habitats with fluctuating resource conditions pose specific challenges to plants, and they often fav...
Invertebrate animals that live at the bottom of aquatic ecosystems (i.e., benthic macrofauna) are im...
Abstract. All aquatic organisms must assimilate the essential nutrient, nitrogen, which can be done ...
Habitats with fluctuating resource conditions pose specific challenges to plants, and they often fav...
Individual animal species can impact ecosystem processes, but few exotic animal species have demonst...
The effects of top-down (e.g., herbivory) and bottom-up (e.g., nutrient supply) processes on primary...
Accurately predicting the effects of introduced species on native commumtles and ecosystems is a cha...
BACKGROUND:Despite the large stocks of organic nitrogen in soil, nitrogen availability limits plant ...
Eutrophication in shallow lakes is characterized by a switch from benthic to pelagic dominance of pr...
Non-native species and habitat degradation are two major catalysts of environmental change and often...
Non-native species and habitat degradation are two major catalysts of environmental change and often...
Herbivorous fish negatively impact algal biomass and promote the growth of cyanobacteria. In nutrien...
In shallow lakes, submerged macrophytes can stabilise clear-water conditions and prevent phytoplankt...
We explored the dynamics of nitrogen fixation (N-fixation) in Cladophora mat assemblages in the Sout...
We investigated the independent and interactive effects of nutrient enrichment and snail grazing on ...
Habitats with fluctuating resource conditions pose specific challenges to plants, and they often fav...
Invertebrate animals that live at the bottom of aquatic ecosystems (i.e., benthic macrofauna) are im...
Abstract. All aquatic organisms must assimilate the essential nutrient, nitrogen, which can be done ...
Habitats with fluctuating resource conditions pose specific challenges to plants, and they often fav...