What breeding system correlates with the savanna weavers' preference for clustered seeds?
Answer
Polygamous breeding systems
The resource availability in the savanna—namely, abundant, localized seed patches—necessitates that birds feed and remain together in large groups to exploit these food sources efficiently. This social aggregation, driven by food distribution, often leads to colonial nesting in areas where suitable sites are limited. Increased competition for these limited nesting sites within the colony environment promotes a polygamous breeding structure. In this system, a single male mates with multiple females residing within the same established colony structure.
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