Subdominant

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subdominant

[¦səb′däm·ə·nənt]
(ecology)
A species which may appear more abundant at particular times of the year than the true dominant in a climax; for example, in a savannah trees and shrubs are more conspicuous than the grasses, which are the true dominants.

Subdominant

 

in music, one of the three harmonic functions; also, the chord situated a fifth below the tonic and indicated by S. The basis of the subdominant chord is the fourth degree of a scale, which is itself called the subdominant. Chords based on the second and sixth degrees also have subdominant functions. The subdominant gravitates more to the tonic than does the dominant because it contains the tonic’s basic tone. The alternation of subdominants and dominants most clearly defines a scale’s gravitation. The tonality of a tonic’s subdominant is called the subdominant key.

References in periodicals archive ?
The midgrass subdominants vary from site to site, but silver bluestem is most common.
The most common subdominants are prickly pear, lotebush, blackbrush, wolfberry, amargosa (Castela texana), alkali sacaton (Sporobolus airoides), and gulf cordgrass (Spartina spartinae).
Common subdominants are blackbrush, Texas kidneywood (Eysenhardtia texana), Spanish dagger (Yucca treculeana), prickly pear, mountain laurel (Sophora secundiflora), guayacan, and blue sage (Salvia ballotaeflora).
Common subdominants are prickly pear, Spanish dagger, guajillo, guayacan, mountain laurel, lotebush, allthorn (Koeberlinia spinosa), Texas kidneywood, Texas ebony, mesquite, and cenizo.
Prickly pear and guayacan are important subdominants within this community.
The most common subdominants are lotebush, blackbrush, saltbrush (Atriplex canescens and A.
Based on differences between subordinate species or relative importance of subdominant species.
As soil moisture becomes more limiting, hairy grama often becomes more common than buffalograss, especially on shallow sands, and sideoats grama may achieve subdominant status on upper slopes.
Subdominant species include mesquite, huisache, mustang grape, muscadine, and little bluestem.
Mesquite is an important subdominant only along the edges of the oak woodland or within the woodland where the canopy has been broken and the midgrass canopy reduced.