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What is Natural vs. Sexual Variation in Sparrows about?

This document discusses natural and sexual variation in two bird species: the House Sparrow and House Finch. [1] It describes measuring quantitative traits like bill size, wing length, and male ornamentation (bib size in sparrows, red chest patch in finches) in museum specimens to demonstrate individual variation. [2] Results show variation in these traits both within and between species that could be influenced by natural or sexual selection. [3] The document discusses how variation may affect survival or

Author

DAAbiology

Language

EN