War In The Garden Flashcards
1
Q
Common plant strategies to avoid pest/animal pressure
A
- sap
- tannins
- spikes
- cellulose (hard to digest)
2
Q
Why are tannins bad for animals?
A
They block nutrient absorption
3
Q
What does rhubarb have that’s bad for us?
A
Oxalates
25g is lethal to humans
4
Q
2 types of defence chemical storage
A
Constitutive
- made and stored until damage
Induced
- only produced when plant is damaged or thinks it will be damaged
5
Q
How does giant hogs weed affect us vs insects?
A
It has psoralen in it which permanently damages our skins ability to protect us from UV radiation.
Insects however can metabolize the psoralen and store it so now the insect is toxic for other things to eat
