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Karyotypic, morphologic, and genic differentiation of hybridizing ground squirrels (Spermophilus mexicanus and Spermophilus tridecemlineatus).
(1982)
Levels of fluctuating asymmetry were measured to try to assess the fitness of the hybrids relative to the parentals. Hybrid asymmetry was greater than that of S. mexicanus but tended to be less than the levels of asymmetry ...
Multivariate analysis of salinity effects on mayfly distributions along a complex river continuum.
(1982)
The association between the benthic community structure and the river gradient as described in the river continuum concept is evaluated in the saline stressed Washita River. Physical, chemical and biological variables were ...
A phenetic assessment of the Ciconiidae (Aves) using skeletal morphology.
(1982)
The stability (measured using matrix correlations) of phenetic classifications based on partitions of continuous morphometric data (skeletal measurements from three groups of birds) was compared for analyses involving two ...