Acoustic frequencies and body mass in New World doves

Article Abstract:

A negative relationship exists between the body mass of 44 species of New World doves and the frequencies that they use in their songs. Even among 13 pairs of closely related species, no relationship was detected between body mass and song frequencies. Meanwhile, after removing the effect of phylogeny and body mass, residuals of variation in song frequencies were found to vary among habitats. The findings are expected to impact on some hypotheses regarding avian phylogeny, character evolution, and values of both acoustic frequencies and body mass.

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Geographic variation in size of female wild Rock Doves

Article Abstract:

Geographic variations in size variables in the female wild Rock Dove are evident, similar to those seen in males. Except for bill size, features tend to be smaller in northern Africa and the Near East, becoming progressively larger in Europe, the Middle East, and the southwestern regions of central Asia. A factor representing overall size accounted for 42% of the variation; one representing shape accounted for 29%; and one representing bill length accounted for 28% of the variation. Data was gathered from museum specimens.

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Mitochondrial DNA and morphological variation of white-winged doves in Texas

Article Abstract:

Research examining criteria of differentiating between species of white-winged doves in Texas is presented. Particular attention is given to differentiating techniques including morphological measurements and geographic heterogeneity.

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