« Previous AbstractEvolution of signal emission by non-infested plants growing near infested plants to avoid future risk    Next Abstract"Molecular Characterization of MbraOR16, a Candidate Sex Pheromone Receptor in Mamestra brassicae (Lepidoptera: Noctuidae)" »

J Theor Biol

Title:		Evolution of talking plants in a tritrophic context: conditions for uninfested plants to attract predators prior to herbivore attack
Author(s):		Kobayashi Y; Yamamura N; Sabelis MW;
Address:		"Center for Ecological Research, Kyoto University, Hirano, Otsu, Shiga 520-2113, Japan. yutaka@ecology.kyoto-u.ac.jp "
Journal Title:		J Theor Biol
Year:		2006
Volume:		20060613
Issue:		3
Page Number:		361 - 374
DOI:		10.1016/j.jtbi.2006.05.026
ISSN/ISBN:		0022-5193 (Print) 0022-5193 (Linking)
Abstract:		"Herbivory induces plants to emit volatile chemicals that attract enemies of the herbivores (bodyguards of plants). In this way, the plant acquires protection and the bodyguards gain food. These plant signals cause neighboring plants, not under attack, to release signals as well. We hypothesize that such 'secondary' signals help to reduce damage from future herbivore attacks by the protection received from the bodyguards. By modeling we explore the conditions for such secondary signals to evolve. Three kinds of strategies are considered: plants of the first strategy always emit a signal, those of the second strategy emit a signal only when infested, and those of the third strategy emit a signal not only when infested, but also when a certain number of neighbors are infested (i.e. secondary signaling). When signaling is much less (much more) costly than damage from herbivory, the first (second) strategy will be favored by selection, whereas for intermediate costs the third strategy, i.e. secondary signaling, will evolve. However, secondary signaling will not evolve when the primary signals lure the bodyguards too effectively. This is because the undamaged plant gains associational defense when the infested individual is defending very well; therefore, the need for secondary signaling decreases"
Keywords:		"Animals *Biological Evolution *Feeding Behavior Models, Biological *Pheromones *Plant Physiological Phenomena *Predatory Behavior;"
Notes:		"MedlineKobayashi, Yutaka Yamamura, Norio Sabelis, Maurice W eng Research Support, Non-U.S. Gov't England 2006/08/16 J Theor Biol. 2006 Dec 7; 243(3):361-74. doi: 10.1016/j.jtbi.2006.05.026. Epub 2006 Jun 13"