Coevolution Flashcards
Coevolution definition
Reciprocal genetic change in interacting species, owing to natural selection imposed by each other
What does commensailsm mean
One species has a positive effect on the other, no effect in the first species
Whats amensalism
One species has a negative impact on the other
Whats antagonism
One species has a positve impact resulting in a negative impact for the other species
Whats competition
Both species have a negative impact on each other
Whats mutualism
Both species have a positive effect on each other
Example of antagonism
Red queen dynamics. Need to be constantly evolving due to other species constantly evolving
Parasite evolution equation
R0 = bN / v + d + r
Vertical transmission example
Mitochondria originally evolved as a parasite and now are mutualisitc
Case study: Heliconious butterfly on passa flora. What are the main adaptions
Flower has secondary metabolites in the form of cyanogenic compounds
Whats the counter adaption for the butterfly
Cyanogenic compounds don’t affect the butterfly and bright coloured wings
Whats the escape and radiate hypothesis
Escaping certain pressures you can radiate faster
Whats the pass flora counter adaption
Egg mimicry, deterring females and variable leaf shapes
Whats the butterflies second counter adaption
Butterflies learn the leaf shapes
What are competition end points
One species can out compete the other and drive it to extinction
