Adaptation of a generalist moth, Operophtera brumata, to variable budburst phenology of host plants

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Adaptation of a generalist moth, Operophtera brumata, to variable budburst phenology of host plants. / Tikkanen, OP; Lyytikäinen-Saarenmaa, Päivi.

In: Entomologia Experimentalis et Applicata, Vol. 103, No. 2, 2002, p. 123-133.

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Tikkanen, OP ; Lyytikäinen-Saarenmaa, Päivi. / Adaptation of a generalist moth, Operophtera brumata, to variable budburst phenology of host plants. In: Entomologia Experimentalis et Applicata. 2002 ; Vol. 103, No. 2. pp. 123-133.

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TY - JOUR

T1 - Adaptation of a generalist moth, Operophtera brumata, to variable budburst phenology of host plants

AU - Tikkanen, OP

AU - Lyytikäinen-Saarenmaa, Päivi

N1 - The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Department of Ecology (Closed 2011) (011006010)

PY - 2002

Y1 - 2002

N2 - The adaptation of three allopatric populations of a generalist moth, Operophtera brumata (L.), on two tree species, Prunus padus (L.) and Quercus robur (L.) which represent the extremes of the timing of budburst in spring, was studied in Finland and Sweden. The synchrony of the hatching and budbursting was monitored, and its importance to dispersal and growth of larvae was assessed by rearing cohorts of larvae, whose hatching dates were manipulated, on both hosts. In addition, the realised heritability of the hatching time was estimated. Experimental populations hatched in approximate synchrony with the budburst of their original host species. As a result of the manipulation of the hatching dates of larvae, the growth rates of larvae decreased and the dispersal rates increased on both hosts in relation to the ageing of foliage. The realised heritability of hatching times was rather high (0.63). There were fewer differences in the host use efficiency and behaviour of the experimental populations than in the hatching phenology. The synchrony of hatching with the budburst of the local dominant host plant is probably a result of stabilising selection.

AB - The adaptation of three allopatric populations of a generalist moth, Operophtera brumata (L.), on two tree species, Prunus padus (L.) and Quercus robur (L.) which represent the extremes of the timing of budburst in spring, was studied in Finland and Sweden. The synchrony of the hatching and budbursting was monitored, and its importance to dispersal and growth of larvae was assessed by rearing cohorts of larvae, whose hatching dates were manipulated, on both hosts. In addition, the realised heritability of the hatching time was estimated. Experimental populations hatched in approximate synchrony with the budburst of their original host species. As a result of the manipulation of the hatching dates of larvae, the growth rates of larvae decreased and the dispersal rates increased on both hosts in relation to the ageing of foliage. The realised heritability of hatching times was rather high (0.63). There were fewer differences in the host use efficiency and behaviour of the experimental populations than in the hatching phenology. The synchrony of hatching with the budburst of the local dominant host plant is probably a result of stabilising selection.

KW - synchrony

KW - phenological

KW - Operophtera brumata

KW - insect herbivory

KW - host adaptation

KW - plant phenology

U2 - 10.1023/A:1020305006274

DO - 10.1023/A:1020305006274

M3 - Article

VL - 103

SP - 123

EP - 133

JO - Entomologia Experimentalis et Applicata

JF - Entomologia Experimentalis et Applicata

SN - 1570-7458

IS - 2

ER -