Both density dependent and density independent factors have been considered important determinants of the dynamics of ungulate populations. Intraspecific competition for food and the amount of snow ...

1. Resource availability and natural enemies are among the most commonly cited mechanisms affecting competitive ability of invasive plants, but their simultaneous effects on plant dynamics are seldom ...

Return to Main Index page Go back to notes for Lecture 26, 1 and 3-Apr-13 Go forward to lecture 28 8-Apr-13 We now turn to something that has been an implied theme throughout -- population regulation.

A new study by the ICTA-UAB establishes that the population density of hunter-gatherer groups was reduced where they depended heavily on meat to survive. Hunter-gatherer populations with a strong ...