Phenology of forest caterpillars and their host trees: The importance of synchrony

TY - JOUR

T1 - Phenology of forest caterpillars and their host trees: The importance of synchrony

AU - Van Asch, M.

AU - Visser, M.E.

N1 - Reporting year: 2007 Metis note: 3981;CTE; PVD ; NPCC; file:///C:/pdfs/Pdfs2007/VanAsch_ea_3981.pdf

PY - 2007

Y1 - 2007

N2 - For many leaf-feeding herbivores, synchrony in phenology with their host plant is crucial as development outside a narrow phenological time window has severe fitness consequences. In this review, we link mechanisms, adaptation, and population dynamics within a single conceptual framework, needed for a full understanding of the causes and consequences of this synchrony. The physiological mechanisms underlying herbivore and plant phenology are affected by environmental cues, such as photoperiod and temperature, although not necessarily in the same way. That these different mechanisms lead to synchrony, even if there is spatial and temporal variation in plant phenology, is a result of the strong natural selection acting on the mechanism underlying herbivore phenology. Synchrony has a major impact on the population densities of leaf-feeding Lepidoptera, and years with a high synchrony may lead to outbreaks. Global climate change leads to a disruption of the synchrony between herbivores and their host plants, which may have major impacts for population viability if natural selection is insufficient to restore synchrony.

AB - For many leaf-feeding herbivores, synchrony in phenology with their host plant is crucial as development outside a narrow phenological time window has severe fitness consequences. In this review, we link mechanisms, adaptation, and population dynamics within a single conceptual framework, needed for a full understanding of the causes and consequences of this synchrony. The physiological mechanisms underlying herbivore and plant phenology are affected by environmental cues, such as photoperiod and temperature, although not necessarily in the same way. That these different mechanisms lead to synchrony, even if there is spatial and temporal variation in plant phenology, is a result of the strong natural selection acting on the mechanism underlying herbivore phenology. Synchrony has a major impact on the population densities of leaf-feeding Lepidoptera, and years with a high synchrony may lead to outbreaks. Global climate change leads to a disruption of the synchrony between herbivores and their host plants, which may have major impacts for population viability if natural selection is insufficient to restore synchrony.

U2 - 10.1146/annurev.ento.52.110405.091418

DO - 10.1146/annurev.ento.52.110405.091418

M3 - Article

SN - 0066-4170

VL - 52

SP - 37

EP - 55

JO - Annual Review of Entomology

JF - Annual Review of Entomology

ER -