population and sustainability Flashcards
what are the two types of competition
intraspecific
interspecific
what is interspecific competition
competition between different species
what is intraspecific competition
competition within species
what is carrying capacity
the max stable population size that a ecosystem can support
what are predator and prey populations controlled by
negative feedback
what are the three limiting factors that affect population size
abiotic
biotic
carrying capacity
what are the 2 example for how fish stocks can be conserved
using fish quotas e.g limit the amount of species fisherman can catch
international agreement and controlling the mesh side of nets allowing younger and unwanted fish to escape
what are the different ways woodland is sustained
harvested by coppicing
trees are cleared in strips or patches
native trees planted to increase biodiversity
trees aren’t planted closer together to reduce competition