What are the primary reasons behind the migration patterns of wildebeests in the Serengeti-Mara ecosystem, and how does this migration affect the local environment?

Wildebeests (Connochaetes) migrate primarily in search of fresh grazing grounds and water, driven by seasonal rainfall patterns. Their migration involves moving between the Serengeti in Tanzania and the Maasai Mara in Kenya. This migration plays a crucial role in the ecosystem by facilitating nutrient cycling, promoting plant growth, and influencing the population dynamics of predators and prey.