Nutrient stoichiometry shapes microbial coevolution

Nutrient stoichiometry shapes microbial coevolution

Nutrient Stoichiometry Shapes Microbial Community Structure in an Evaporitic Shallow Pond

Nutrient availability and ratios can play an important role in shaping microbial communities of freshwater ecosystems. The Cuatro Ciénegas Basin (CCB) in Mexico is a desert oasis where, perhaps paradoxically, high microbial diversity coincides with extreme oligotrophy. To better understand the effects of nutrients on microbial communities in CCB, a mesocosm experiment was implemented in a stoic...

Nutrient limitation and stoichiometry of carnivorous plants.

The cost-benefit model for the evolution of carnivorous plants posits a trade-off between photosynthetic costs associated with carnivorous structures and photosynthetic benefits accrued through additional nutrient acquisition. The model predicts that carnivory is expected to evolve if its marginal benefits exceed its marginal costs. Further, the model predicts that when nutrients are scarce but...

Stoichiometry of Consumer-driven Nutrient Recycling

How does consumer physiology and life history respond to them? And (3) What are their consequences for ecological processes in ecosystems? Elemental imbalances are defi ned by a mismatch between the elemental demands of a consumer and those provided by its resources. For example, carbon-tophosphorus (C:P) ratios in the suspended organic matter in lakes (i.e., algae, bacteria, and detritus) can ...

Nutrient recycling affects autotroph and ecosystem stoichiometry.

Stoichiometric nutrient ratios are the consequence of myriad interacting processes, both biotic and abiotic. Theoretical explanations for autotroph stoichiometry have focused on species' nutrient requirements but have not addressed the role of nutrient availability in determining autotroph stoichiometry. Remineralization of organic N and P supplies a significant fraction of inorganic N and P to...