期刊
TRENDS IN ECOLOGY & EVOLUTION
卷 31, 期 10, 页码 789-802出版社
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tree.2016.07.011
关键词
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资金
- Natural Sciences and Engineering Research Council (NSERC) Discovery Grant
- NSERC Vanier grant
- Michigan State University Distinguished Fellowship
Both herbivory and plant defenses against herbivores have been predicted to increase toward tropical regions. Early tests of this latitudinal herbivory-defense hypothesis (LHDH) were supportive, but accumulating evidence has been mixed. We argue that the lack of clarity might be due to heterogeneity in methodology and problems with study design and interpretation. We suggest possible solutions. Latitudinal studies need to carefully consider spatial and phylogenetic scale, to link plant defense measurements to herbivore performance, and to incorporate additional concepts from plant defense theory such as tolerance and induced defense. In addition, we call for consistent measures of herbivory to standardize comparisons across biomes. Improving methodology in future studies of LHDH should resolve much of the current controversy.
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