Table 3. Open in new tab Tibiotarsus...

Species	Tibiotarsus length l_tt	Tarsometatarsus length l_tmt	Ratio l_tt/l_tmt	Foot span l_foot
Geospiza fuliginosa	20	29.2	0.85	-4.2	20	21.9	0.80	-7.2	20	1.334	0.040	+3.7	20	23.8	1.1	-1.5
Geospiza fortis	39	34.1	1.6	-3.8	39	25.6	1.4	-5.2	39	1.333	0.036	+1.5	39	28.1	1.4	-1.6
Geospiza magnirostris	9	37.4	1.0	-2.3	9	28.2	1.1	-2.2	9	1.327	0.014	-0.09	9	30.5	1.1	-2.1
Geospiza scandens	22	33.3	1.0	-3.2	22	25.3	0.80	-3.8	22	1.318	0.030	+0.73	22	28.3	0.98	+2.5
Platyspiza crassirostris	20	41.6	1.1	+6.5	20	31.5	0.85	+7.5	20	1.319	0.017	-0.92	20	30.5	0.85	-3.9
Camarhynchus parvulus	22	29.5	0.80	+0.24	22	23.1	0.75	+0.57	22	1.274	0.029	-0.43	22	23.7	0.80	+1.9
Camarhynchus psittacula	8	33.5	1.1	+1.1	8	26.0	0.99	+2.9	8	1.288	0.029	-0.96	8	27.3	0.57	+4.0
Camarhynchus pallidus	11	35.5	0.63	+1.7	11	27.5	0.50	+3.4	11	1.293	0.017	-1.4	11	29.6	0.53	+5.5
Certhidea olivacea	24	28.8	0.13	+3.9	24	23.1	0.11	+5.9	24	1.245	0.027	-2.0	24	20.8	0.12	-4.5

Species

Tibiotarsus length l_tt

Tarsometatarsus length l_tmt

Ratio l_tt/l_tmt

Foot span l_foot

Geospiza fuliginosa

29.2

0.85

-4.2

21.9

0.80

-7.2

1.334

0.040

+3.7

23.8

1.1

-1.5

Geospiza fortis

34.1

1.6

-3.8

25.6

1.4

-5.2

1.333

0.036

+1.5

28.1

1.4

-1.6

Geospiza magnirostris

37.4

1.0

-2.3

28.2

1.1

-2.2

1.327

0.014

-0.09

30.5

1.1

-2.1

Geospiza scandens

33.3

1.0

-3.2

25.3

0.80

-3.8

1.318

0.030

+0.73

28.3

0.98

+2.5

Platyspiza crassirostris

41.6

1.1

+6.5

31.5

0.85

+7.5

1.319

0.017

-0.92

30.5

0.85

-3.9

Camarhynchus parvulus

29.5

0.80

+0.24

23.1

0.75

+0.57

1.274

0.029

-0.43

23.7

0.80

+1.9

Camarhynchus psittacula

33.5

1.1

+1.1

26.0

0.99

+2.9

1.288

0.029

-0.96

27.3

0.57

+4.0

Camarhynchus pallidus

35.5

0.63

+1.7

27.5

0.50

+3.4

1.293

0.017

-1.4

29.6

0.53

+5.5

Certhidea olivacea

28.8

0.13

+3.9

23.1

0.11

+5.9

1.245

0.027

-2.0

20.8

0.12

-4.5

Species	Tibiotarsus length l_tt	Tarsometatarsus length l_tmt	Ratio l_tt/l_tmt	Foot span l_foot
Geospiza fuliginosa	20	29.2	0.85	-4.2	20	21.9	0.80	-7.2	20	1.334	0.040	+3.7	20	23.8	1.1	-1.5
Geospiza fortis	39	34.1	1.6	-3.8	39	25.6	1.4	-5.2	39	1.333	0.036	+1.5	39	28.1	1.4	-1.6
Geospiza magnirostris	9	37.4	1.0	-2.3	9	28.2	1.1	-2.2	9	1.327	0.014	-0.09	9	30.5	1.1	-2.1
Geospiza scandens	22	33.3	1.0	-3.2	22	25.3	0.80	-3.8	22	1.318	0.030	+0.73	22	28.3	0.98	+2.5
Platyspiza crassirostris	20	41.6	1.1	+6.5	20	31.5	0.85	+7.5	20	1.319	0.017	-0.92	20	30.5	0.85	-3.9
Camarhynchus parvulus	22	29.5	0.80	+0.24	22	23.1	0.75	+0.57	22	1.274	0.029	-0.43	22	23.7	0.80	+1.9
Camarhynchus psittacula	8	33.5	1.1	+1.1	8	26.0	0.99	+2.9	8	1.288	0.029	-0.96	8	27.3	0.57	+4.0
Camarhynchus pallidus	11	35.5	0.63	+1.7	11	27.5	0.50	+3.4	11	1.293	0.017	-1.4	11	29.6	0.53	+5.5
Certhidea olivacea	24	28.8	0.13	+3.9	24	23.1	0.11	+5.9	24	1.245	0.027	-2.0	24	20.8	0.12	-4.5

Table 3.

Open in new tab

Tibiotarsus length l_tt (mm), tarsometatarsus length l_tmt (mm), the ratio l_tt/l_tmt, and foot span l_foot (mm) in nine species of Galapagos finches (males and females combined) on Santa Cruz. N is number of specimens in sample, X is mean value, SD is standard deviation, and % is the percentage deviation of the observed measurement y_obs from the trend line value ytrend, calculated as (y_obs—y_trend)/(y_trend) × 100

Species	Tibiotarsus length l_tt				Tarsometatarsus length l_tmt				Ratio l_tt/l_tmt				Foot span l_foot
	N	X	SD	%	N	X	SD	%	N	X	SD	%	N	X	SD	%
Geospiza fuliginosa	20	29.2	0.85	-4.2	20	21.9	0.80	-7.2	20	1.334	0.040	+3.7	20	23.8	1.1	-1.5
Geospiza fortis	39	34.1	1.6	-3.8	39	25.6	1.4	-5.2	39	1.333	0.036	+1.5	39	28.1	1.4	-1.6
Geospiza magnirostris	9	37.4	1.0	-2.3	9	28.2	1.1	-2.2	9	1.327	0.014	-0.09	9	30.5	1.1	-2.1
Geospiza scandens	22	33.3	1.0	-3.2	22	25.3	0.80	-3.8	22	1.318	0.030	+0.73	22	28.3	0.98	+2.5
Platyspiza crassirostris	20	41.6	1.1	+6.5	20	31.5	0.85	+7.5	20	1.319	0.017	-0.92	20	30.5	0.85	-3.9
Camarhynchus parvulus	22	29.5	0.80	+0.24	22	23.1	0.75	+0.57	22	1.274	0.029	-0.43	22	23.7	0.80	+1.9
Camarhynchus psittacula	8	33.5	1.1	+1.1	8	26.0	0.99	+2.9	8	1.288	0.029	-0.96	8	27.3	0.57	+4.0
Camarhynchus pallidus	11	35.5	0.63	+1.7	11	27.5	0.50	+3.4	11	1.293	0.017	-1.4	11	29.6	0.53	+5.5
Certhidea olivacea	24	28.8	0.13	+3.9	24	23.1	0.11	+5.9	24	1.245	0.027	-2.0	24	20.8	0.12	-4.5

Species	Tibiotarsus length l_tt				Tarsometatarsus length l_tmt				Ratio l_tt/l_tmt				Foot span l_foot
	N	X	SD	%	N	X	SD	%	N	X	SD	%	N	X	SD	%
Geospiza fuliginosa	20	29.2	0.85	-4.2	20	21.9	0.80	-7.2	20	1.334	0.040	+3.7	20	23.8	1.1	-1.5
Geospiza fortis	39	34.1	1.6	-3.8	39	25.6	1.4	-5.2	39	1.333	0.036	+1.5	39	28.1	1.4	-1.6
Geospiza magnirostris	9	37.4	1.0	-2.3	9	28.2	1.1	-2.2	9	1.327	0.014	-0.09	9	30.5	1.1	-2.1
Geospiza scandens	22	33.3	1.0	-3.2	22	25.3	0.80	-3.8	22	1.318	0.030	+0.73	22	28.3	0.98	+2.5
Platyspiza crassirostris	20	41.6	1.1	+6.5	20	31.5	0.85	+7.5	20	1.319	0.017	-0.92	20	30.5	0.85	-3.9
Camarhynchus parvulus	22	29.5	0.80	+0.24	22	23.1	0.75	+0.57	22	1.274	0.029	-0.43	22	23.7	0.80	+1.9
Camarhynchus psittacula	8	33.5	1.1	+1.1	8	26.0	0.99	+2.9	8	1.288	0.029	-0.96	8	27.3	0.57	+4.0
Camarhynchus pallidus	11	35.5	0.63	+1.7	11	27.5	0.50	+3.4	11	1.293	0.017	-1.4	11	29.6	0.53	+5.5
Certhidea olivacea	24	28.8	0.13	+3.9	24	23.1	0.11	+5.9	24	1.245	0.027	-2.0	24	20.8	0.12	-4.5

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