HERBIVORE OUTBREAKS ON ONLY YOUNG TREES - TESTING HYPOTHESES ABOUT AGING AND INDUCED RESISTANCE

被引：33

作者：

KARBAN, R

机构：

来源：

OIKOS | 1990年 / 59卷 / 01期

关键词：

D O I：

10.2307/3545118

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Populations of spider mites (Oligonychus spp.) occasionally become high on young Monterey pines Pinus radiata but remain small on older individuals. Two hypotheses to explain this age-related pattern (resistance of trees to mites increases as they age, independent of herbivory; young trees attacked by mites become permanently resistant to subsequent infestations) were not supported. Cuttings that were "developmentally older' tended to support more mites, not fewer. Mite populations were reduced on trees that had been damaged by mites during the previous year but this difference did not persist for three years. Other explanations are suggested. -from Author

引用

页码：27 / 32

页数：6

共 32 条

[1]

BLAIS J. R., 1958, FOREST CHRON, V34, P405

[2]

BOLSTAD PV, 1982, SILVAE GENET, V31, P9

[3] CARBON NUTRIENT BALANCE OF BOREAL PLANTS IN RELATION TO VERTEBRATE HERBIVORY [J].