Coevolution TThe mutual evolutionary influence between two species SSpecies evolve in response to...
-
Upload
robert-mills -
Category
Documents
-
view
215 -
download
0
Transcript of Coevolution TThe mutual evolutionary influence between two species SSpecies evolve in response to...
Coe
volu
tion
The mutual evolutionary influence between two species
Species evolve in response to changes in each other
Symbiotic relationship including:
– Predator/prey
– Parasite/host
– Plant/pollinator
Each party exerts selective pressures on the other
Co-
evol
utio
n
Coe
volu
tion
fly and orchidC
oevo
luti
on
Coe
volu
tion
Bumblebees and the flowers they pollinate have co-evolved so that both have become dependent on each
other for survival.
Coe
volu
tion
Yucca moth and the yucca plant.
Female moth pushing pollen into the stigma tube of the yucca flower while visiting the flower to deposit her eggs.
Yucca moth larvae (left) feeding on seeds in the yucca fruit.
Coe
volu
tion
Clown Fish and Sea anemone
Coe
volu
tion
Praying Mantis camouflaged against leaf
Hides from predators
Eats plant pests, so helps the plant
Coe
volu
tion
Shrimp cleaning Titan triggerfish, Pacific
Ocean
Vid
eos
http://www.pbs.org/wgbh/evolution/library/01/3/quicktime/l_013_07_56.html
Wolfe: Coevolution of horses and plants