| Title: | "How slug herbivory of juvenile hybrid willows alters chemistry, growth and subsequent susceptibility to diverse plant enemies" |
| Author(s): | Orians CM; Fritz RS; Hochwender CG; Albrectsen BR; Czesak ME; |
| Address: | "Department of Biology, Tufts University, Medford, MA 02155, USA. colin.orians@tufts.edu" |
| ISSN/ISBN: | 1095-8290 (Electronic) 0305-7364 (Print) 0305-7364 (Linking) |
| Abstract: | "BACKGROUND AND AIMS: Selective feeding by herbivores, especially at the seedling or juvenile phase, has the potential to change plant traits and ultimately the susceptibility of surviving plants to other enemies. Moreover, since hybridization is important to speciation and can lead to introgression of traits between plant species, differential feeding (herbivore-induced mortality) can influence the expression of resistance traits of hybrids and ultimately determine the consequences of hybridization. While it would be expected that herbivore-induced mortality would lead to greater resistance, there may be trade-offs whereby resistance to one herbivore increases susceptibility to others. The hypothesis was tested that the exotic slug, Arion subfuscus, causes non-random survival of hybrid willows and alters plant: (1) susceptibility to slugs; (2) secondary and nutritional chemistry, and growth; and (3) susceptibility to other phytophages. METHODS: Two populations of plants, control and selected, were created by placing trays of juvenile willows in the field and allowing slugs access to only some. When |
| Keywords: | "Animals Gastropoda/*physiology Glycosides/metabolism *Herbivory Phenols/metabolism Salix/*physiology *Selection, Genetic Tannins/metabolism Arion subfuscus Exotic species Salix herbivory hybridization slug trade-offs willow;" |
| Notes: | "MedlineOrians, Colin M Fritz, Robert S Hochwender, Cris G Albrectsen, Benedicte R Czesak, Mary Ellen eng Research Support, U.S. Gov't, Non-P.H.S. England 2013/03/12 Ann Bot. 2013 Aug; 112(4):757-65. doi: 10.1093/aob/mct002. Epub 2013 Mar 7" |
