Does spatial population structure affect seed set in pollen-limited Thymus capitatus?

Does Population Aging Affect Income Inequality in Iran?

Objectives: The aging of the population in recent years in Iran has raised concerns among policymakers in various fields. Some economic theories consider the changes in the age structure and population aging as one of the important issues affecting the income inequality of societies. This study aims to assess the effect of population aging on the income inequality in Iran. Methods & Materials:...

Antibacterial activity in vitro of Thymus capitatus from Jordan.

This study was carried out to evaluate the antibacterial activity of aqueous and organic extracts of Thymus capitatus L. (Lamiaceae) leaves and stems. Dried ground powder leaves and stems were extracted with water (aqueous extracts), ethanol, dichloromethane and hexane (Soxhlet extracts). The antibacterial activity of these extracts was evaluated against bacteria using disc diffusion method. Th...

The Effect of Population Size on Stigma Pollen Load, Fruit Set, and Seed Set in Allium Stellatum Ker. (Liliaceae)

Estimating seed vs. pollen dispersal from spatial genetic structure in the common ash.

Spatial genetic structure was analysed with five highly polymorphic microsatellite loci in a Romanian population of common ash (Fraxinus excelsior L.), a wind-pollinated and wind-dispersed tree species occurring in mixed deciduous forests over almost all of Europe. Contributions of seed and pollen dispersal to total gene flow were investigated by analysing the pattern of decrease in kinship coe...

Is the pollen-limited mistletoe Peraxilla tetrapetala (Loranthaceae) also seed limited?

Seed production in the endemic New Zealand mistletoe Peraxilla tetrapetala (Loranthaceae) has been shown to be consistently pollen limited, but to date there has been no test of whether the species is also seed limited. If it is not seed limited, then pollen limitation may have no effect on population size.We tested for seed limitation by sowing seeds onto host trees at high and low densities a...