The researchers studied the factors influencing a zooplankton community in a reservoir. They found that physical factors mainly drive changes in zooplankton abundance throughout the year. Abiotic factors like temperature and nutrients play a bigger role in shaping the community at different times of the year. The interactions between species in the community are more complex in the summer when there are more species and abundance. Positive and negative relationships between species suggest different types of interactions like competition and predator-prey relationships. Overall, the zooplankton community is most stable throughout the year, with the summer community being the most variable.