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| Content Provider | Springer Nature Link |
|---|---|
| Author | Couture, John J. Serbin, Shawn P. Townsend, Philip A. |
| Copyright Year | 2015 |
| Abstract | In this study, we examined the independent and interactive effects of temperature and water availability on the growth and foliar traits of common milkweed (Asclepias syriaca) and performance of a specialist herbivore, larvae of the monarch butterfly (Danaus plexippus). Milkweed from multiple population sources collected across a latitudinal gradient in Wisconsin, USA, were grown under all combinations of ambient or elevated temperature and the presence or absence of periodic water stress. Elevated temperature marginally increased, while water stress decreased plant growth. Milkweed from more northerly latitudes experienced larger growth responses to elevated temperature and were more resistant to water stress, especially under higher temperatures. Elevated temperature and water stress also altered milkweed composite foliar trait profiles. Elevated temperature generally increased leaf nitrogen and structural compounds, and decreased leaf mass per area. Water stress also elevated foliar nitrogen, but reduced defensive traits. Monarch larvae performed well on milkweed under elevated temperature and water stress, but gained the most mass on plants exposed to both treatments in combination. Our findings suggest that milkweed populations from more northerly latitudes in the upper Midwest may benefit more from rising temperatures than those in southerly locations, but that these beneficial effects depend on water availability. Monarch larvae grew larger on plants from all experimental treatments relative to ambient condition controls, indicating that future changes in milkweed presence on the landscape will likely influence monarch populations more than the effects of future changes in plant quality on larval performance. |
| Starting Page | 149 |
| Ending Page | 161 |
| Page Count | 13 |
| File Format | |
| ISSN | 18728855 |
| Journal | Arthropod-Plant Interactions |
| Volume Number | 9 |
| Issue Number | 2 |
| e-ISSN | 18728847 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2015-03-15 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Asclepias Common milkweed Danaus plexippus Elevated temperature Monarch butterfly Water stress Plant–insect interactions Entomology Invertebrates Plant Sciences Ecology Behavioral Sciences Plant Pathology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ecology Ecology, Evolution, Behavior and Systematics Insect Science Agronomy and Crop Science |
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