Department of Biology, Nelson Biological Labs, Rutgers University. Piscataway, NJ 08855. U.S.A.
The effects of host plant phenology on the demography and population dynamics of the leaf-mining moth, Cameraria hamadryadella (Lepidoptera: Gracillariidae)
Version of Record online: 14 MAR 2008
Volume 19, Issue 2, pages 111–120, May 1994
How to Cite
CONNOR, E. F., ADAMS-MANSON, R. H., CARR, T. G. and BECK, M. W. (1994), The effects of host plant phenology on the demography and population dynamics of the leaf-mining moth, Cameraria hamadryadella (Lepidoptera: Gracillariidae). Ecological Entomology, 19: 111–120. doi: 10.1111/j.1365-2311.1994.tb00400.x
- Issue online: 14 MAR 2008
- Version of Record online: 14 MAR 2008
- Accepted 18 January 1994
- Cameraria hamadryadella;
- host-plant phenology;
- population dynamics;
- 1We examined the effects of variation in the timing of spring leaf production and autumn leaf fall on the survival, mortality and abundance of Cameraria hamadryadella on Quercus alba and Q.macrocarpa.
- 2We monitored and manipulated the timing of foliation on field and potted Q.alba trees and observed the abundance of C.hamadryadella on those trees. We also monitored and manipulated the timing of leaf fall on Q.alba and Q.macrocarpa trees in the field and observed its effects on survival, mortality and abundance of C.hamadryadella.
- 3Variation in the timing of spring leaf production has no effect on C. hamudryadella abundance. However, a warm winter and spring in 1991 led to accelerated development and the imposition of a facultative third generation in one out of ten years of observation.
- 4In 1989, leaves fell relatively early and leaf fall in the autumn accounted for more than 50% of the mortality of C.hamudryadella. in 1990 and 1991 leaves fell relatively late and leaf fall induced mortality was substantially reduced and overwinter survival was markedly increased.
- 5The abundance of C.hamadryadella remained constant in the spring and summer of 1990 following the previous autumn's relatively early leaf fall, but increased by 10-fold in the spring of 1991 following the relatively late leaf fall of autumn 1990. The abundance of C.hamadryadella also increased 4-fold between the summer of 1991 and the spring of 1992 after another autumn of relatively late leaf fall. We attribute these increases in abundance in part to reduced mortality because of later leaf fall.
- 6Variation in the timing of autumn leaf fall may be responsible for initiating outbreaks of C.hamadryadella.