Please enable JavaScript.
Coggle requires JavaScript to display documents.
Why females prefer traits (good gene or handicap model (INDICATES: (Goog…
Why females prefer traits
Fisherian runaway selection model
+ve feedback -> sexy sons
Correlative: genes for female choice and male trait is correlated between siblings
Experimental: can reduce trait: shorten that -> more success because easier to court
good gene or handicap model
INDICATES:
Goog genetic component to female genes (heterozygosity)
disease resistance
foraging skills
support:
Correlational: more mean area of eyespots more chicks survived, peacocks with more eyespots got more mates
Experimental: sam cut or actual cut eyespots: less copulations when eyespots removed
What females assess about genes
disease/parasite resistance
inject PHA-> more swell in birds with more repertoire and peacocks with longer tails
Goos stable conditions during development
Sym: fish with dry ice -> made asylum: less mates
genetic complementarity
Goog gene model: more diversity in MHC preferred
Seychelle warblers: EPC with diverse MHC males
genetic complementarity model: best combination preferred
Chase-away model
exp: different color discs: both genders attack orange
exp: sword tail added to platyfish-> when added: attractive