Table 6

Female life history traits for Poecilia mexicana from three different habitat types, sampled before and after the 2007 flood (Means ± S.E.).

Population

Sampling

SL [mm]

Female lean weight [g]a

Female fat content [%]a

Fecunditya

Embryo dry weight [mg]b

Embryo fat content [%]b

Reproductive allocation [%]b,c


CA

(toxic cave)

pre-flood

(N = 16)

35.94 ± 1.26

0.19 ± 0.02

6.07 ± 0.91

3.83 ± 1.69

8.17 ± 0.36

16.97 ± 1.01

12.51 ± 1.17

post-flood

(N = 21)

37.76 ± 0.91

0.19 ± 0.01

6.29 ± 0.80

3.88 ± 1.48

8.17 ± 0.31

14.55 ± 0.87

14.69 ± 1.02

EAI

(toxic surface)

pre-flood

(N = 8)

30.00 ± 0.71

0.29 ± 0.02

5.34 ± 1.36

11.59 ± 2.51

5.29 ± 0.53

22.12 ± 1.50

10.32 ± 1.74

post-flood

(N = 19)

32.05 ± 1.15

0.28 ± 0.02

1.79 ± 0.89

12.41 ± 1.64

4.46 ± 0.35

16.32 ± 0.97

13.84 ± 1.13

RA

(benign surface)

pre-flood

(N = 25)

33.84 ± 0.71

0.23 ± 0.01

13.54 ± 0.75

13.23 ± 1.38

2.61 ± 0.29

23.33 ± 0.82

10.89 ± 0.95

AB

(benign surface)

post-flood

(N = 37)

42.84 ± 1.33

0.28 ± 0.01

7.43 ± 0.69

21.84 ± 1.27

3.75 ± 0.27

19.30 ± 0.75

20.29 ± 0.87


a Estimated marginal means from a GLM with SL as a covariate.

b Estimated marginal means from a GLM with SL and Embryo Stage as covariates.

c Reproductive allocation: Proportion of total dry weight which consists of developing embryos.

Plath et al. BMC Evolutionary Biology 2010 10:256   doi:10.1186/1471-2148-10-256

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