Arid
DOI10.1007/BF00328455
Induced resistance to herbivores and the information content of early season attack
Karban, R; Adler, FR
通讯作者Karban, R
来源期刊OECOLOGIA
ISSN0029-8549
出版年1996
卷号107期号:3页码:379-385
英文摘要

Current models of induced plant defenses all assume that herbivory is predictable. Present damage must provide information about the likelihood of future attack. We tested this assumption by measuring the relationship between damage early in the season and the number of subsequent attacks by cotton leaf perforators, Bucculatrix thurberiella, to plants of wild cotton, Gossypium thurberi, at three sites in the Sonoran desert. Damage early in the season was a good predictor of the number of new mines initiated throughout the season for plants in Florida Canyon. This result was neither evidence for nor against induced resistance nor was it a consequence of induced resistance. This is because induced resistance has been found to affect survival of miners but previous damage did not affect the initiation of new mines. At two other sites, early damage was not related to future attacks. This difference in predictability of attack may be related to inducibility of plants since Florida Canyon was the only site that provided evidence of induced resistance in a previous study. We found no evidence that the usefulness of information based on early season damage decreased as the season progressed. Assessment of attacks on all shoots of the plant was more useful at predicting later damage to an assay shoot than was assessment of solely the assay shoot. Number of mines, produced only by G. thurberiella, was a better predictor of subsequent-attacks by G. thurberiella than were chews and rasps which were made by many different herbivores. However, general chewing damage was a better indicator of the level of induction against G. thurberiella than was the more specific mining damage. Plants may respond more to chewing damage even though mining damage is a better predictor of future attacks.


英文关键词costs cues induced defense induced resistance information
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:A1996VC24600012
WOS关键词INDUCIBLE DEFENSES ; GOSSYPIUM-THURBERI ; PLANT-DENSITY ; NATIVE SHRUB ; MODEL ; CONSEQUENCES ; RESPONSES ; EVOLUTION ; ECOLOGY ; COSTS
WOS类目Ecology
WOS研究方向Environmental Sciences & Ecology
来源机构University of California, Davis
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/133378
作者单位(1)UNIV UTAH,DEPT MATH,SALT LAKE CITY,UT 84112;(2)UNIV UTAH,DEPT BIOL,SALT LAKE CITY,UT 84112
推荐引用方式
GB/T 7714
Karban, R,Adler, FR. Induced resistance to herbivores and the information content of early season attack[J]. University of California, Davis,1996,107(3):379-385.
APA Karban, R,&Adler, FR.(1996).Induced resistance to herbivores and the information content of early season attack.OECOLOGIA,107(3),379-385.
MLA Karban, R,et al."Induced resistance to herbivores and the information content of early season attack".OECOLOGIA 107.3(1996):379-385.
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