I want to test whether the breeding periods of several closely related birds is significantly separated in time. What statistical test should I use?
My data consists of several observations per species with the date of breeding initiation (i.e. egg laying dates).
Could I just simply do an ANOVA on the Julian dates of breeding initiation?
I only have data of breeding birds, none of non-breeding ones. We only recorded breeding initiation of birds on nests. Each bird was recorded only once. I don't think survival analysis would fit this type of data. Am I wrong? (I'm not familiar with survival analysis).
Breeding time of different species do not deviate from normality. Variances are equal among species.
Here is what the data looks like. Each type and color of line represents a different species.