ISSN:
1570-7458
Keywords:
Panolis flammea
;
host plant quality
;
birth weight
;
larval development
;
emergence time
;
gender differences
;
oviposition
;
longevity
;
adult weight
;
Pinus sylvestris
;
Pinus contorta
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Pine beauty moth (Panolis flammea D&S, Lepidoptera: Noctuidae) were reared individually from egg hatch to pupation on one of three host plants, Pinus sylvestris (native host plant), Pinus contorta (Central Interior seed origin – good quality introduced host) and P. contorta (Alaskan seed origin – poor quality introduced host). After emerging from the pupae the adult moths were confined to a Skeena River seed origin of P. contorta. Female pupal weight and adult life span were significantly higher on P. sylvestris than on the two lodgepole pine seed origins. Development time was, however, not significantly different between treatments, but larval mean relative growth rate was found to be negatively correlated with birth weight and positively correlated with pupal weight. The time to emerge from the pupa was also not significantly different between treatments. However, there were marked differences between the genders. Male moths lost a significantly greater proportion of their weight over the pupal stage but lived significantly longer as adults than the females. Female moths emerged from the pupal stage significantly sooner than male moths. There was no apparent advantage of large birth size when looked at in terms of subsequent performance. These results are discussed in light of current life history theory.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1003226207123
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