The index may also be used as a management tool for evaluating certain aspects which may need to be modified in order to minimise their allergenic impact, including the presence of single-species stands, hedges, and tree screens, and the prevalence of male trees.
The relative high prevalence in Henan might be related with the high prevalence of Tree Sparrow.
Consequently, an impala's fear of being eaten increases the prevalence of thorny trees in safe areas, and safeguards less-thorny trees in risky areas.
All three are keen gardeners and had begun to notice the prevalence of fruit trees in their neighbourhood.
A third study, Young et al. (2013), was limited to measuring the prevalence of basic phylogenetic tree characteristics (e.g., single common ancestor, branches, and hierarchy) in representations generated by students before and after instructional activities.
Tree canopy cover near the prenatal address was associated with higher prevalence of allergic sensitization to tree pollen.
However, tree canopy cover within 0.25 km of the prenatal address was associated with higher prevalence of allergic sensitization to tree pollen at 7 years of age that was evident before and after covariate adjustment and when analyzed using alternate methods to address missing data and loss to follow-up.
Prevalence of avian influenza viruses among tree sparrows could increase opportunities for them to carry influenza viruses from aquatic birds to domestic farms and even to humans.
Given the prevalence of color polymorphisms throughout the tree of life, it is surprising that their significance in promoting ecological and evolutionary diversification has been rarely demonstrated empirically [ 3, 5, 6].
At any rate, the high prevalence of multifurcations that exists among intraspecific trees reflects the inadequacy of tree-building methods for reticulate data, and their finding of lower-than expected values of C at short branch lengths is solely an artifact.
