Freshwater phytoplankton diversity: models, drivers and implications for ecosystem properties

Area of Science:

• Ecology
• Limnology
• Microbial Ecology

Background:

• Hutchinson's paradox of the plankton spurred research into phytoplankton diversity.
• Phytoplankton ecology has advanced significantly, necessitating a synthesis of current knowledge.

Purpose of the Study:

• To summarize key advancements in phytoplankton ecology concerning diversity.
• To provide a framework for phytoplankton community assembly and diversity measures.
• To discuss factors influencing phytoplankton species richness and ecosystem function.

Main Methods:

• Review of ecological theories on species competition.
• Application of modeling approaches and laboratory experiments.
• Analysis of environmental factors (water body size, productivity, temperature).
• Insight into molecular tools for microbial diversity assessment.

Main Results:

• Ecological theories and experiments elucidate species coexistence and diversity maintenance.
• Non-equilibrium dynamics and disturbances are crucial in shaping phytoplankton diversity.
• Water body size, habitat productivity, and temperature significantly impact species richness.
• Phytoplankton diversity influences lake ecosystem functioning.

Conclusions:

• A comprehensive framework for understanding phytoplankton community assembly and diversity is presented.
• Molecular tools have revolutionized the study of microbial diversity.
• Future research should integrate ecological theories with advanced molecular techniques for a holistic view.