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Lecture 14

ENVR 101 Lecture Notes - Lecture 14: Maasai Mara, Serengeti National Park, Introduced Species

Environmental Studies
Course Code
ENVR 101
Daniel Taylor Brantley

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Serengeti National Park
Located in East Africa
One of the last places on the planet where an ecosystem remains intact and
1.2 million wildebeest migrate year
Part of an epic migration
that has occurred for millennia
Maasai Mara National Reserve
Located in Kenya
Connected to Serengeti
Migratory animals
move between both
Conservationists as well as most Kenyans are opposed to the highway because it would
Block migration
Devastate tourism
Provide access to poaching
Promote invasion of exotic plant species
Encourage human development
As of 2014, the project is still being discussed, and the new Tanzanian government
continues to push for the construction of the road
Variety of life at all levels of
Species diversity
Genetic diversity
Ecosystem diversity
Species diversity
The number or variety of species in a particular region
Richness: the number of species
Evenness (relative abundance): the extent to which species differ in
number of individuals
A set of individuals that share certain characteristics and can interbreed producing
fertile offspring
Speciation generates new species
Extinction reduces species richness
Populations of species that occur in different areas and differ slightly from each
Genetic diversity
Encompasses differences in DNA among individuals
Provides the raw material for adaptation to local conditions
Populations with higher genetic diversity
Survive and can cope with environmental change
Populations with low genetic diversity
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