Developmental instability: an appropriate indicator of plant fitness?
No abstract available.
Book chapter↗
Geology topics
R. A. Hough
Publications and source records attributed to R. A. Hough.
Developmental instability as a biomonitor of environmental stress: an illustration using aquatic vegetation
No abstract available
Book chapter↗
Biological monitoring of environmental quality: The use of developmental instability
Distributed robustness is thought to influence the buffering of random phenotypic variation through the scale-free topology of gene regulatory, metabolic, and protein-protein interaction networks. If this hypothesis is true, then the phenotypic response to the perturbation of particular nodes in such a network should be proportional to the number of links those nodes make with neighboring nodes. This suggests a probability distribution approximating an inverse power-law of random phenotypic variation. Zero phenotypic variation, however, is impossible, because random molecular and cellular processes are essential to normal development. Consequently, a more realistic distribution should have a y-intercept close to zero in the lower tail, a mode greater than zero, and a long (fat) upper tail. The double Pareto-lognormal (DPLN) distribution is an ideal candidate distribution. It consists of a mixture of a lognormal body and upper and lower power-law tails.
Journal of Environmental Engineering↗