Ecological Stoichiometry in Neotropical Stream Food Webs

Our study takes us to seven national parks and forests in Panama. The spatial variation of our field sites follows the progression of the chytrid disease wave that recently caused massive amphibian declines in the region. To assess the role of biodiversity in ecosystem functioning using ecological stoichiometry, we will address three focal questions over varying spatial and temporal scales:

I.) What stoichiometric patterns exist at the species and community level for neotropical primary consumers (fish and amphibians) and what are the underlying mechanisms for these patterns?

II.) What do differences in patterns imply for consumer-driven nutrient recycling, and how are they altered by changes in community structure and food quality?

III.) How does the stoichiometry of autochthonous and allochthonous resources in streams affect aquatic-terrestrial linkages?