4.1.2: Biodiversity Flashcards
What is species richness?
The number of different species present in a community.
How is species evenness measured?
By recording the number of individuals present for each identified species.
What factors affect biodiversity?
- Human population
- Agriculture
- Climate change
What is the trend of the human population growth?
The human population continues to increase at an exponential rate.
What are the consequences of deforestation?
Permanent removal of large areas of trees for buildings, roads, farming, or timber.
How does increased agriculture impact biodiversity?
It results in habitat destruction, use of pesticides, and monocultures.
What is the effect of climate change on biodiversity?
It negatively affects biodiversity by melting habitats and altering survival conditions.
What happens to polar ice caps due to global warming?
They are melting, destroying habitats and causing sea levels to rise.
What is a consequence of rising sea levels?
It reduces biodiversity due to flooding.
What type of plants are becoming dominant in some areas due to climate change?
Xerophytes.
Fill in the blank: Deforestation is the _______ removal of large areas of trees.
[permanent]
True or False: Monocultures increase the range of food sources for animals.
False.
