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Natural selection on plant resistance to herbivores in the native and introduced range

Opened Access Natural selection on plant resistance to herbivores in the native and introduced range

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Autor: Valverde, Pedro L.
Arroyo Marín, Juan
Núñez Farfán, Juan
Castillo, Guillermo
Calahorra, Adriana
Pérez Barrales, Rocio
Departamento: Universidad de Sevilla. Departamento de Biología Vegetal y Ecología
Fecha: 2014
Publicado en: AoB PLANTS, 7, 1-13.
Tipo de documento: Artículo
Resumen: . When plants are introduced into new regions, the absence of their co-evolved natural enemies can result in lower levels of attack. As a consequence of this reduction in enemy pressure, plant performance may increase and selection for resistance to enemies may decrease. In the present study, we compared leaf damage, plant size and leaf trichome density, as well as the direction and magnitude of selection on resistance and plant size between non-native (Spain) and native (Mexico) populations of Datura stramonium. This species was introduced to Spain about five centuries ago and constitutes an ideal system to test four predictions of the enemy release hypothesis. Compared with native populations, we expected Spanish populations of D. stramonium to have (i) lower levels of foliar damage; (ii) larger plant size; (iii) lower leaf trichome density that is unrelated to foliar damage by herbivores; and (iv) weak or no selection on resistance to herbivores but strong selection on plan...
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Cita: Valverde, P.L., Arroyo Marín, J., Núñez Farfán, J., Castillo, G., Calahorra, A. y Pérez Barrales, R. (2014). Natural selection on plant resistance to herbivores in the native and introduced range. AoB PLANTS, 7, 1-13.
Tamaño: 500.9Kb
Formato: PDF

URI: http://hdl.handle.net/11441/64081

DOI: doi.org/10.1093/aobpla/plv090

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