Damage and shade enhance climbing and promote associational resistance in a climbing plant

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dc.contributor.authorGonzalez-Teuber, Marcia
dc.contributor.authorGianoli, Ernesto
dc.date.accessioned2025-01-21T01:05:12Z
dc.date.available2025-01-21T01:05:12Z
dc.date.issued2008
dc.description.abstract1. Associational resistance occurs when one plant species gains protection from its consumers by association with a defended species. In semi-arid ecosystems of Chile, the perennial herb Convolvulus chilensis (Convolvulaceae) suffers heavy herbivory by small mammals when growing prostrate but plants seem to be protected when they are climbing onto cacti or thorny shrubs (nurse species).
dc.description.abstract2. Field observations suggest that damaged main stems have a greater number of small lateral stems, which greatly enhance climbing success. In this field study we addressed whether C. chilensis shows associational resistance by climbing onto nurse species, and evaluated whether damage and also shade (a cue for neighbour presence) elicit architectural responses that enhance climbing probability.
dc.description.abstract3. We documented associational resistance for C chilensis: climbing individuals growing associated with cacti and thorny shrubs suffered less herbivory (percentage of damaged stems: 35 vs. 98) and had greater reproductive output (number of reproductive structures at the end of the season: 150 vs. 0) than prostrate individuals growing in isolation. Experimental clipping of the main stem caused plants to produce a greater number of lateral stems both in sun (70% increase) and in shade (66% increase) treatments. Moreover, stem damage caused a 50% increase in the number of stems actually climbing on a support, but only in shade.
dc.description.abstract4. Synthesis. We show for the first time that phenotypic responses to herbivory of the potentially protected species may enhance association with the defended nurse species, thereby promoting associational resistance. This finding adds a new perspective for mechanistic studies of positive interactions among plants, suggesting that behavioural responses of the protegee may mediate the magnitude of nurse effects.
dc.fuente.origenWOS
dc.identifier.doi10.1111/j.1365-2745.2007.01321.x
dc.identifier.issn0022-0477
dc.identifier.urihttps://doi.org/10.1111/j.1365-2745.2007.01321.x
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95855
dc.identifier.wosidWOS:000252846500013
dc.issue.numero1
dc.language.isoen
dc.pagina.final126
dc.pagina.inicio122
dc.revistaJournal of ecology
dc.rightsacceso restringido
dc.subjectassociational resistance
dc.subjectdamage
dc.subjectherbivory
dc.subjectinduced responses
dc.subjectnurse effects
dc.subjectphenotypic responses
dc.subjectplant architecture
dc.subjectsemi-arid ecosystems
dc.subjectvines
dc.subject.ods14 Life Below Water
dc.subject.ods15 Life on Land
dc.subject.odspa14 Vida submarina
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleDamage and shade enhance climbing and promote associational resistance in a climbing plant
dc.typeartículo
dc.volumen96
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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