Human Activity Flashcards
Species with more specialist requirements, in terms of resources & conditions / sensitivity to pollution, tend to
Die out first and leave behind a more general and less diverse community.
Land changes by HA leads to a change in
Plant species distribution and abundance; as a result this leads to a change in associated invertebrate and bird species.
A reduction is species diversity can give an
Early warning of undesirable environmental changes whilst there is still time to reverse the damage.
HA on fauna: bottom up control -
Seed dispersal by railway network.
HA on fauna: top down controls - (3)
Vegetation management by the constant removal of plant material by burning, grazing and cutting.
Clearing of forest for agriculture, allows secondary succession.
Habitat fragmentation prevents seed dispersal.
