Table 2.
Results of GLMs predicting variation in the number of nauplii produced in the first clutch and the total number of clutches produced per female copepod
| Response | Predictor | n | Est./SE |
|---|---|---|---|
| Number of naupliiA | |||
| 1‐hr UV | 11 | 0.24/0.08** | |
| 3‐hr UV | 15 | 0.20/0.07** | |
| Gestation duration | 41 | −0.13/0.03*** | |
| Gestation duration (days)B | |||
| 1‐hr UV | 11 | −0.16/0.09 # | |
| 3‐hr UV | 16 | −0.13/0.08 | |
| Number of clutchesC | |||
| 1 Count model | 1‐hr UV | 25 | 0.07/0.34 |
| 3‐hr UV | 28 | 0.39/0.31 | |
| 2 Zero‐inf model | 1‐hr UV | 25 | 0.69/0.62 |
| 3‐hr UV | 28 | 0.18/0.60 | |
| Longevity (days)D | |||
| 1‐hr UV | — | — | |
| 3‐hr UV | — | — | |
| Virgin | 64 | 37.75/6.51*** | |
| Produced clutches | 43 | 37.72/7.26*** | |
| Age | 143 | −12.68/3.09*** | |
| Longevity (days)E | |||
| 1‐hr UV | 25 | −0.93/0.40* | |
| 3‐hr UV | 27 | −0.71/0.41 # | |
| Number of clutches | 79 | 0.34/0.03*** | |
| Age | 79 | −0.80/0.21*** |
Mean estimates of gestation duration (appearance of an egg sac to hatching) and longevity are presented from LMs. n is sample size, Est. is the point estimate, and SE is the standard error of the estimate. Mean estimates for 1‐ and 3‐hr UV irradiation treatments are estimated in comparison to controls. Longevity was modeled using two methods: one model with reproductive status (virgin, failed mating, and produced clutches) as a covariate and one model with the number of clutches that mating females produced as a covariate. Virgins and females that produced clutches are in comparison to females that mated but did not produce clutches (failed mating). Significance levels:
0.1
0.05
0.01
0.001
not retained