Table 1 Generalized linear model of the presence of elongated spermatids in the testes of M. lignano flatworms from a BrdU pulse-chase experiment. Following the administration of a 30 min BrdU pulse on Day 0, worms were maintained in two different social environments (pairs, octets) until being fixed for immunocytochemistry on Days 5, 6 and 7. The model treats the presence of BrdU-labelled elongated spermatids in their testes as the binomial response variable with three explanatory terms: group size, chase time, and a group size × chase time interaction. Total n = 118
From: Sperm competition-induced plasticity in the speed of spermatogenesis
Term | Estimate | S.E. | χ2 | d.f. | P |
|---|---|---|---|---|---|
(Intercept) | −2.03 | 2.06 |  |  |  |
Chase time | 0.46 | 0.35 | 16.66 | 1 | <0.0001 |
Group size | −9.38 | 3.63 | 12.76 | 1 | 0.0004 |
Chase time × Group size | 1.30 | 0.59 | 5.40 | 1 | 0.02 |