6.3.2 Flashcards
What is the first phase of population growth typically called?
slow development phase
What are the main characteristics of the slow development phase in population growth?
birth rate exceeds death rate
What defines phase 2 of the population growth?
Rapid population growth
What is a key feature of phase 2, the rapid growth phase?
few limits on population growth
What is the final phase of population growth called?
stable phase or state
What limits further growth in the stable phase
external constraints
What term describes the point where a point reaches its max stable size?
carrying capacity
What does carrying capacity represent in a population?
max size the env supports
What is a characterisitc of carrying capacity?
not subject to futher sucsession
If resources were unlimited what would happen to pop growth?
grow exponentially
What 2 types of factors limit population growth?
abiotic and biotic
What are biotic factors?
non-living factors
What is intra-specific competition?
competition within a species
What is interspecific competition?
competition between different species
What does immigration refer to?
movement of organisms into an area
What is emigration?
movement of organisms out of an area
