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Table 1 Parameter estimates for the scaling of maternal metabolizable energy intake (MEImat) during lactation established from the 24 species of the study, with and without accounting for the phylogenetic structure of the data

From: Allometric scaling of the elevation of maternal energy intake during lactation

Characteristic of MEImat during lactation (log10)

Phylogeny controlled

Parameters

r2

λ

Intercept

log10 body mass (b 1 )

log10 body mass2 (b 2 )

Diet energy density

Average rate

Yes

−0.235*

[−0.454, 0.005]

0.672***

[0.611, 0.728]

0.053**

[0.024, 0.082]

0.018*

[0.001, 0.033]

0.99

0.61

No

−0.247*

[−0.433, 0.060]

0.693***

[0.652, 0.733]

0.053***

[0.028, 0.078]

0.018*

[0.004, 0.032]

0.99

Initial rate

Yes

−0.289

[−0.629, 0.082]

0.665***

[0.591, 0.739]

0.062**

[0.023, 0.099]

0.006

[−0.019, 0.032]

0.99

0.03

No

−0.288

[−0.310, −0.150]

0.673***

[0.616, 0.727]

0.064***

[0.033, 0.096]

0.005

[−0.018, 0.026]

0.99

Peak rate

Yes

−0.233

[−0.468, 0.010]

0.667***

[0.603, 0.732]

0.050**

[0.019, 0.082]

0.024**

[0.008, 0.040]

0.99

0.65

No

−0.239*

[−0.435, −0.041]

0.691***

[0.647, 0.736]

0.050***

[0.023, 0.078]

0.024**

[0.009, 0.038]

0.99

Amplitude

Yes

−0.847***

[−1.317, −0.412]

0.643***

[0.531, 0.758]

0.055*

[0.002, 0.110]

0.038*

[0.008, 0.069]

0.98

0.74

No

−0.807***

[−1.180, −0.400]

0.666***

[0.580, 0.750]

0.059*

[0.010, 0.100]

0.037*

[0.010, 0.070]

0.98

Time to peak

Yes

1.266***

[0.853, 1.659]

0.078

[−0.029, 0.185]

0.036

[−0.013, 0.085]

−0.001

[−0.028, 0.026]

0.52

0.79

No

1.266***

[1.000, 1.400]

0.117

[0.041, 0.194]

0.034

[−0.011, 0.080]

−0.002

[−0.027, 0.022]

0.57

Cumulative elevation to peak

Yes

0.302

[−0.341, 0.947]

0.730***

[0.565, 0.910]

0.092*

[0.013, 0.171]

0.032

[−0.012, 0.074]

0.96

0.81

No

0.305

[−0.235, 0.893]

0.798***

[0.673, 0.922]

0.091*

[0.017, 0.164]

0.033

[−0.011, 0.072]

0.97

  1. λ is the strength of the phylogenetic signal (varying from 0 (absent) to 1 (strong))
  2. Numbers in brackets are 95 % CI estimates
  3. Asterisks denote the level of statistical significance: * (P < 0.05), ** (P < 0.01), *** (P < 0.001)