Conclusions
¥Increasing photoperiod
may be responsible for much of the seasonal increase in growth.
¥Larval size and
photoperiod explain 43 to 60% of the observed variability in growth.
¥Temperature residuals
explain little (<5%) of the variability in growth residuals except in 1999.
¥A strong year effect on
growth and growth residuals was observed with both lowest in 1995.
¥Parental factors and/or food availability
may be responsible
for the year effect.