Lecture 15 Flashcards
Conservation Genetics
What is conservation genetics and why does it matter ?
science that aims to apply genetic methods to the conservation and restoration of biodiversity.
Conservation Genetics
What fields contribute to conservation biology ?
Ecology, behavioral ecology, physiology molecular biology, Evolution and Genetics
Conservation Genetics
Of the Six fields that contribute, which are the most important ones?
Evolution and Genetics
Conservation Genetics
where are we losing diversity?
____ level ( high extinction rate) ______ level, and within species ( low _____ diversity )
Species level , Ecosystem level , and low genetic diversity.
Why preserve biodiversity ? Ethical reason: _____
For it’s own sake
Why preserve biodiversity ? For our own sake such as_____
B- other ecosystems services such as _____
C- Nutrient cycling _______
D- others
Biodiversity creates medicine and other products for us
Pollination by bees
C- Carbon/Nitrogen
D- Purification of Air and Water , moderates weather extremes such wetlands providing buffers against storms.
HOW IS GENETICS USED TO PRESERVE BIODIVERSITY?
A- _______ populations/species under genetic risk. ex______
B- _______ populations/species worthy of protection
A-Diagnose , ex- Cheetah
B- Prioritize
Conservation Genetics
Who has High priority ? ______
Low priority ?
Phylogenetically Unique Species
Low priority- Hybrids
Competing efforts - on San Clemente , ______ conservation has priority over ______ conservation.
Shrike over Fox Conservation
Small populations are at risk due to ….
______ between close relatives . EX.
Inbreeding depression
Small populations are at risk due to ….
_______ which results in reduced ability to adapt to environmental changes. EX
Low genetic variation
Ex- Climate change, antibiotics
______ results in the interaction between low genetic variation and small population . Ex____
extinction vortex
Ex, prarie chicken.
According the a small population approach, what would be the best strategy for saving a pop that is in the extinction vortext??
Introducing individuals for other populations to increase genetic variation.
(Ne)= the size of an ideal population that would lose genetic variations due to genetic drift at the same rate as the actual population.
Effective Population size
Deviation from ideal conditions ?
500-5k pop, random mating, no overlapping variation .
if the sex ratio in a population is significantly different from 50-50 , then which of the following will always be true?
The effective pop size will be less than the actual pop size.
