Patrones de herbivoría en Vassobia breviflora (Solanaceae): variación en el daño foliar y selección natural mediada por herbívoros

Herbivore mediated-selection shapes the evolution of defensive plant traits. Knowledge about the role of herbivores as mediators of selection is scarce and even more if herbivore functional groups are considered. The objectives of this work were (1) to describe the variation in foliar traits between...

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Detalles Bibliográficos
Autores principales: Valoy, Mariana, Ordano, Mariano, Bernacki, Facundo, Palacio, Facundo Xavier, López Acosta, Juan Carlos, Varela, Omar
Formato: Articulo
Lenguaje:Español
Publicado: 2018
Materias:
Botánica
Plant-animal interactions
Phenotypic selection
Functional groups
Leaf traits
Herbivory levels
Damage patterns
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/105196
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-105196
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Botánica
Plant-animal interactions
Phenotypic selection
Functional groups
Leaf traits
Herbivory levels
Damage patterns
spellingShingle Botánica
Plant-animal interactions
Phenotypic selection
Functional groups
Leaf traits
Herbivory levels
Damage patterns
Valoy, Mariana
Ordano, Mariano
Bernacki, Facundo
Palacio, Facundo Xavier
López Acosta, Juan Carlos
Varela, Omar
Patrones de herbivoría en Vassobia breviflora (Solanaceae): variación en el daño foliar y selección natural mediada por herbívoros
topic_facet Botánica
Plant-animal interactions
Phenotypic selection
Functional groups
Leaf traits
Herbivory levels
Damage patterns
description Herbivore mediated-selection shapes the evolution of defensive plant traits. Knowledge about the role of herbivores as mediators of selection is scarce and even more if herbivore functional groups are considered. The objectives of this work were (1) to describe the variation in foliar traits between populations and both between and intra-plants within a population, (2) to explore the relationship between the variation in the herbivory level and foliar traits, (3) to determine the relationship between leaf traits and damage patterns and (4) estimate the selection regimes by different herbivore functional groups. We conducted this study in four populations of Vassobia breviflora in Northwestern Argentina (Yungas). The foliar traits considered were size, leaf area (af), shape (leaf length / width ratio; laf) and proportion of leaf area removed (pafr) (N = 1 582 leaves, 57 plants). The herbivores consumed 15.6 % of the leaf area and 76.8 % of the variation in the pafr occurred at the sub-individual level. The damage pattern was dominated by cutter herbivores (70 %), followed by a dotted herbivory pattern (22 %), mixed 5 % and 1 % miner. Nonlinear selection was detected for laf (γii = -0.180; EE = 0.76; P < 0.05), and correlational selection between the cutter damage and af (γij = -1.297; SE = 0.62; P < 0.05) and between the dotted damage and af (γij = -1.130; SE = 0.76; P < 0.05). Natural selection favored plants with small leaves and high foliar removal and large leaves with less damage and selection against larger leaves with greater damage was detected. In addition, deduced from the relationship between the damage type and the relative fitness, the selection would favor the dotted damage over the cutter one. The plants would resolve the conflict with the herbivores according to the damage type and natural selection would regulate the foliar display as a strategy to deal with the herbivore diversity.
format Articulo
Articulo
author Valoy, Mariana
Ordano, Mariano
Bernacki, Facundo
Palacio, Facundo Xavier
López Acosta, Juan Carlos
Varela, Omar
author_facet Valoy, Mariana
Ordano, Mariano
Bernacki, Facundo
Palacio, Facundo Xavier
López Acosta, Juan Carlos
Varela, Omar
author_sort Valoy, Mariana
title Patrones de herbivoría en Vassobia breviflora (Solanaceae): variación en el daño foliar y selección natural mediada por herbívoros
title_short Patrones de herbivoría en Vassobia breviflora (Solanaceae): variación en el daño foliar y selección natural mediada por herbívoros
title_full Patrones de herbivoría en Vassobia breviflora (Solanaceae): variación en el daño foliar y selección natural mediada por herbívoros
title_fullStr Patrones de herbivoría en Vassobia breviflora (Solanaceae): variación en el daño foliar y selección natural mediada por herbívoros
title_full_unstemmed Patrones de herbivoría en Vassobia breviflora (Solanaceae): variación en el daño foliar y selección natural mediada por herbívoros
title_sort patrones de herbivoría en vassobia breviflora (solanaceae): variación en el daño foliar y selección natural mediada por herbívoros
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/105196
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