Ethoclines & Ancestral State Recon

Question 1

ethogram vs ethocline

Answer 1

ethogram
- catalog of fixed action patterns

ethocline
- a progressive change in the pattern of behaviour of a group of closely related organisms, more recently evolved members will have more complicated patterns

Question 2

what is ancestral state reconstruction

Answer 2

tool used it estimate the characteristics of ancestors by combining information from a phylogenetic tree and observed traits of existing species

Question 3

describe “ancestral state reconstruction is only as good as the phylogeny being used”

Answer 3

• reconstruction relies on a good phylogenetic tree to being with ! in order to get accurate data

Question 4

what are character states

Answer 4

any heritable traits for which there is a reasonable hypothesis for homology

Question 5

what is maximum parsimony

Answer 5

explains relationship in simplist way
- infers the character states at nodes of a phylogenetic tree