[R-sig-eco] Multivariate quasi-bionomial analysis of proportion data?

[Amanda]

Thank you Bob and Tom for assistance, I was unaware of the distributions you
referred to, Bob. 

Some more information: We filmed ~80 foraging bouts of varying length (all >
1 min) with behaviour categories such as eating flowers, eating roots,
eating seeds, walking, digging... Each bout describes the behaviour of 1
focal individual. Individuals switched between behaviours a lot during each
bout: eat, walk to next plant, eat, walk to next, eat, preen, eat, walk,
eat, in a short space of time (< 1 min) would be typical, although I don't
have the data on how many switches to hand. All data were recorded in
seconds. The same individual was occasionally recorded in a second bout but
only if longer than 15 minutes had elapsed from the end of the previous
bout. All of our DVs are foraging or searching behaviours, as these are not
the only behaviours the animals engaged in they do not necessarily total to
100% of the bout recorded.

We are interested in the effects of season, sex and age on each DV. Our
original analysis was: seasonal (oneway ANOVAs) and age by sex (3 x 2
factorial ANOVAs). We ran all age by sex ANOVAs exclusively on bouts
recorded in summer as this was the only season with an even spread of age
and sex categories. We used the Benjamini-Hochberg procedure to adjust p
values.  

Any further advice you have would be greatly appreciated, please let me know
if I can provide any more info. 

Thanks,

Amanda



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