Table 5.
Ontogenetic differences in hematocrit and RBC counts. Among species, non-phylogenetic and phylogenetic analyses suggest that hematocrit and RBC counts are generally higher in adult males than in male juvenile conspecifics. The same difference is not found in females.
| Trait & Comparison | Test | MLEs(λ, σε2); log(L) | d̄ | t | df(N − p) | P |
|---|---|---|---|---|---|---|
| Hematocrit fem. A – J | non-phylogenetic/non-error | log(L) = 83.15 | 0.008 | 1.449 | 44 | 0.1543 |
| phylogenetic/non-error | λ = 1.00; log(L) = 97.51 | 0.034 | 1.177 | 43 | 0.2455 | |
| phylogenetic/error | λ = 1.37; σε2 = 3.76; log(L) = 109.53 | 0.012 | 1.373 | 42 | 0.1769 | |
| Hematocrit males A – J | non-phylogenetic/non-error | log(L) = 86.02 | 0.036 | 7.165 | 42 | <0.0001 |
| phylogenetic/non-error | λ = 0.083 log(L) = 86.04 | 0.035 | 4.508 | 41 | <0.0001 | |
| phylogenetic/error | λ = 0.0; σε2 = 2.27; log(L) = 86.54 | 0.036 | 7.285 | 40 | <0.0001 | |
| RBC fem. A – J | non-phylogenetic/non-error | log(L) = −25.21 | −0.05 | −0.78 | 42 | 0.4420 |
| phylogenetic/non-error | λ = 1.02; log(L) = −16.03 | 0.224 | 0.489 | 41 | 0.6278 | |
| phylogenetic/error | λ = 1.07; σε2 = 1.01; log(L) = −7.63 | 0.162 | 0.487 | 40 | 0.6290 | |
| RBC male A – J | non-phylogenetic/non-error | log(L) = −37.20 | 0.259 | 2.830 | 41 | 0.0072 |
| phylogenetic/non-error | λ=0.0; log(L) = −37.20 | 0.259 | 2.795 | 40 | 0.0079 | |
| phylogenetic/error | λ = 0.0; σε2 = 9.22; log(L) = −32.72 | 0.245 | 3.947 | 39 | 0.0003 | |
Note: A = Adults, J = Juveniles