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SBI3U
Date: ___________________________
1.4 Classifying Types of Biodiversity
There are 3 types of Biological Diversity:
1. ________________________________
2. ________________________________
3. ________________________________
Species Diversity


The _________________________ and ________________________ of species in a
given area.
Example: A meadow with diverse species
Genetic Diversity


The variety of ______________________________ in a population of interbreeding
individuals
Example: Humpback whales have different _______________________ (same species)
•
Genetic Diversity __________________________________ is known as the gene pool.
•
The gene pool is the ___________ of all the versions of all the genes in a population.
•
Genetic diversity within a species is typically __________________ than that within a
population, because the gene pools of separate populations exposed to different
____________________ conditions usually contain different types or combinations of
the different versions of genes.
SBI3U
Date: ___________________________
Genetic Diversity Provides Resistance to Disease
•
Populations that lack genetic diversity are more susceptible to _________________
than those that have high diversity.
•
Example: Tasmanian devils reduced to a population of 150 000 in 1996 to 50000 in
2006 due to a contagious disease.
•
Research has shown that a lack of genetic diversity was a key factor in the
____________ of the disease.
Genetic Diversity Supports Conservation Biology
•
Scientists have ___________________ struggling populations to increase genetic
diversity.
•
Example: Florida Panther population was declining (_____________) in 1995 and
scientists introduced 8 female panthers from _______________ to recover the
population.
•
Result  Population is believed to exceed _________ in 2011
Ecosystem Diversity


The variety of ecosystems in a ______________________________.
Example: Algonquin Park is made up of a variety of ecosystems.
Ecosystem and Species Diversity



Ecosystems with greater species diversity exhibit _____________________.
Resilience is the ability of an ecosystem to remain ____________________ and
________________ in the presence of outside ____________________________.
Example: ___________________________ e.g. Zebra mussels in Lake Ontario
Learning Check p. 33 #18, 20 – 23
Review Q’s p. 37 # 4, 7
Chapter 1 Self Assessment, Pg. 48-49 #1-13, 16-20, 22