L09-slides-2

2ac v21 n 12 120 p 0001 fishers exact test

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Unformatted text preview: rate variation 0 10 ANOVA 2.4 2.8 3.2 8 F = 28.27 P < .0001 2 3.6 4 4 AF n=11 6 . 2 0 2 2.4 2.8 3.2 10 3.6 4 ET n=34 8 6 4 2 N What we did: 1. Collected males and females from 11 populations 2. Recorded male songs at 20˚C 3. Songs digitized, pulse period measured, inverse transformed (=pulse rate) 4. Pairwise acoustic choice design at 20˚C No. observations 0 2 2.4 2.8 3.2 3.6 4 10 Naulu n=12 8 6 4 2 0 2 2.4 2.8 3.2 3.6 Pulses/ second 4 Grace and Shaw 2011, Evolution 19 9/19/13 3 feet Release Pt. Speaker c omp ut e r iz e d song Laupala cerasina 6 5 4 3 2 3.5 3.4 3.3 3.1 3.2 2.9 3.0 2.7 2.8 2.6 2.5 2.2 2.3 2.4 Pulse Rate 2.0 2.1 1 Proportion to the fasterfaster Proportion to the rate rate Females prefer songs of local males 1 1.0 00.8 .8 00.6 .6 L. cerasina! Male pulse rate: Naulu 2.47 Glenwood 2.68 00.4 .4 00.2 .2 00 22 .2 25 .8 36 .0 .0 23 .4 24 .6 0 Pulse rate choices 21 vs s vs vs vs vs (pulses per second) Pulse rate choice (pulses pervsecond) 2.2 2.4 2.6 2.8 3.0 7 3.2 Grace and Shaw 2012, Current Zoology 20 9/19/13 BUT: does song preference = mate choice? Experiment •  Songs of two males played •  Female phonotaxis observed •  Chosen male offered to female Male pulse rate: Naulu 2.47 Glenwood 2.68 Glenwood male song Naulu male song •  Courtship & mating observed •  EXCEPT: a subset of trials females were given the opposite male whose song was not chosen Grace and Shaw in preparation Preference (percent) F e male Ph o n o taxis Pr e fe r e n ce : Gle n -Nau lu 100 90 80 70 60 50 40 30 Glen m ales Naulu m ales 20 10 0 Glen Naulu L. cerasina! Female Population Fisher’s exact test p=0.0031 Grace and Shaw in preparation 21 9/19/13 Copulation Success Rate Female shows acous-c preference but once in close proximity will mate with either male int er intra Fisher’s exact test NS p>0.05 t rial : female given male she chose c ont rol: female given male she didn’t choose Grace and Shaw in preparation Interspecific discrimination? F e male Ph o n o taxis Pr e fe r e n ce : L. ce r asin a-L. e u ko le a 120 Preference (percent) Proportion successfu...
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This note was uploaded on 01/13/2014 for the course BIONB 2210 taught by Professor Seeley during the Fall '10 term at Cornell.

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