Lec 22- Predation and herbivory avoidance

Question 1

EATING IS EXPLOITATION

Answer 1

Just remember

Question 2

what are two major strategies to avoid going extinct due to predation?

Answer 2

1. Defense: stay and don’t get eaten in the first place.
2. Refuges: seek refuge from predators.

Question 3

Aposematic strategy

Answer 3

dont eat me im not tasty. Bright and conspicuous coloration is displayed by many toxic of distasteful potential prey species.

Question 4

Mullerian mimicry

Answer 4

mimicking of warning signals among different poisonous species.

bees, hornets, and wasps, all mimick each other’s looks- stripes. once stung they will likely never feed on this species

Question 5

Batesian mimicry

Answer 5

why bother to be poisonous when you can simply look poisonous?

a type of mimicry by non toxic species to resemble toxic

Question 6

camouflage

Answer 6

you can eat me if you cant see me

mostly a visual display

Question 7

rescue effect

Answer 7

individuals from larger populations may immigrate and “rescue” smaller populations

Question 8

What does size help with according to survival?

Answer 8

simply are too big to be eaten

but the cons are it takes too much energy to maintain large body size

Question 9

What does size help with according to survival?

Answer 9

simply are too big to be eaten

but the cons are it takes too much energy to maintain a large body size

Question 10

Can plants avoid herbivory animals from eating them? explain how

Answer 10

thorns, poisonous budding etc

Question 11

constitutive defences

Answer 11

produced continuously, regardless of what happens to the plant

Question 12

Induced Defenses

Answer 12

concentrations of a defensive chemical increase rapidly in response to damage by

Question 13

Digestion-reducing compounds

Answer 13

tea includes tannins which bind to plant proteins and make them difficult to digest for many herbivores

Question 14

what do plants exhibit in response to herbivory?

Answer 14

phenotypic plasticity

Question 15

Why don’t plants have warning coloration

Answer 15

-plants are generally green because of their chlorophyll

-color other than green= less light
-absorbed= less photosynthesis

Question 16

how do fruits help with the dispersal of seeds?

Answer 16

eating them then pooping

Question 17

Why are some fruits toxic

Answer 17

-they are not ripe yet
-to reduce the risk of the seeds being ingested (laxative properties, or constipation properties.)