What pairing system correlates with the forest-dwelling weavers' insect diet?
Answer
Monogamous pairing
Weaver species living in forests lean more heavily toward an insect diet. Unlike seeds, insects are widely distributed throughout the forest understory and canopy, requiring the birds to search over much broader areas individually to secure sufficient prey. This dispersed foraging requirement discourages the benefits of tight flocking seen in seed-eaters. Furthermore, the closed forest habitat offers more ample and safer territory for building individual nests, reducing the need to cluster socially. This more spread-out, less aggregated existence aligns with and favors a monogamous pairing structure, where birds frequently remain paired with the same partner for the duration of the breeding season.
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