exp birds

This file only includes those females that started to produce a clutch. ID = Identity of the bird Treatment = Injection with either phosphate buffered saline (PBS) or tetanus-toxoid vaccine Exp = Control females (1); tetanus-injected females (2) Body mass = Body mass (g) of the female Days to first egg = The time period between first presented with a nest box and nesting material and the production of the first egg by the females. Number of eggs = Clutch size Mean egg mass = Mean egg mass (g) of the eggs in each clutch Total egg mass = Total mass (g) of all eggs in a clutch Mean yolk mass = Mean yolk mass (g) of the eggs in each clutch Mean yolk proportion = Mean proportion of yolk in relation to egg mass in each clutch Arcsin mean yolk prop. = Arcsine transformed mean yolk proportion Diff body Mass = Initial body mass taken on the day of the second injection minus body mass after completion of egg laying. Days btw bm measurements = Number of days between the two body mass measurements Scaled index = Condition index of the female Age = Age of the female; 1 = One year old; 2 = Two years old Tetanus = Tetanus antibody concentrations (mODmin-1) Log (tet) = The logarithm of tetanus antibody concentration