phenotypic plasticity Flashcards
locust phase change
what is a phenotype
totaility of traits
G X E
Gene-Environment Interaction
what is phenotypic plasticity
the ability to change behaviour and physical traits in response to environment (without genetic changes)
locusts in low densities behaviour with other locusts
mutual repulsion
locusts in intense crowding react with others
mutual attraction
solitarious phase
low density
gregarious
high density
solitarious characteristics
- cryptic colouring
- creeping gait
- 3 per 100m2
gregarious characteristics
- warning colours
- active and mobile
- rapid gait
true or false; phase change is reversible
true
what is proximate mechanisms
what is happening inside the animal to cause change
how do you quantify behavioural phase state
using Pgreg
what is P greg
the probability on how we expect it to behave
what sensory inputs drive behavioural gregarisation
- crowding
- sight and smell
- hind leg touch
metaplasticity
plasticity of plasticity
anti- predator strategies
solitarious - camouflage, avoid ingesting toxins
gregarious - warning colours, ingest toxins
is serotonin necessary for gregarisation
serotonin receptor antagonist should block gregarisation in the presence of gregarising sensory input
