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Trade-off among different anti-herbivore defence strategies along an altitudinal gradient

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ABSTRACT

We found that Salvia nubicola distributed along a broad altitudinal gradient developed a range of defence strategies against insect herbivores. The strategies, however, do not seem to be used simultaneously in all populations even though most of them are correlated with the altitudinal gradient along which herbivore pressure is decreasing. Our study thus shows the importance of simultaneous study of different defence strategies since understanding trade-offs among them could be necessary for detecting the mechanisms by which plants are able to cope with changes in plant-herbivore interactions as a consequence of future climate change.

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Relationship between altitude and herbivore damage on S. nubicola recorded in the field. Population means and SE are shown.
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plw026-F1: Relationship between altitude and herbivore damage on S. nubicola recorded in the field. Population means and SE are shown.

Mentions: We thus decided to simulate herbivore damage by mechanical clipping. In the middle of August 2014, we cut off half of the leaf area at every second leaf with scissors on plants with previous S. littoralis addition. At each side of the leaf, four large triangles were cut off the leaf without affecting the middle vein. The level of defoliation after clipping treatment was thus 25% which is within the range of observed intensity of herbivory in the field (Fig. 1).Figure 1.


Trade-off among different anti-herbivore defence strategies along an altitudinal gradient
Relationship between altitude and herbivore damage on S. nubicola recorded in the field. Population means and SE are shown.
© Copyright Policy - creative-commons
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4940502&req=5

plw026-F1: Relationship between altitude and herbivore damage on S. nubicola recorded in the field. Population means and SE are shown.
Mentions: We thus decided to simulate herbivore damage by mechanical clipping. In the middle of August 2014, we cut off half of the leaf area at every second leaf with scissors on plants with previous S. littoralis addition. At each side of the leaf, four large triangles were cut off the leaf without affecting the middle vein. The level of defoliation after clipping treatment was thus 25% which is within the range of observed intensity of herbivory in the field (Fig. 1).Figure 1.

View Article: PubMed Central - PubMed

ABSTRACT

We found that Salvia nubicola distributed along a broad altitudinal gradient developed a range of defence strategies against insect herbivores. The strategies, however, do not seem to be used simultaneously in all populations even though most of them are correlated with the altitudinal gradient along which herbivore pressure is decreasing. Our study thus shows the importance of simultaneous study of different defence strategies since understanding trade-offs among them could be necessary for detecting the mechanisms by which plants are able to cope with changes in plant-herbivore interactions as a consequence of future climate change.

No MeSH data available.


Related in: MedlinePlus