2018
Maldonado-López, Yurixhi; Vaca-Sánchez, Marcela Sofía; González-Rodríguez, Antonio; Oyama, Ken; López-Barbosa, Edmundo; Fagundes, Marcilio; Cuevas-Reyes, Pablo
Hybridization increases canopy arthropod diversity in the Quercus affinis × Quercus laurina complex Artículo de revista
En: Journal of Insect Conservation, vol. 22, iss. 5-6, pp. 781-793, 2018, ISSN: 15729753.
Resumen | Enlaces | Etiquetas: Arthropod diversity, Canopy, Hybrids, Quercus laurina × Quercus affinis complex
@article{nokey,
title = {Hybridization increases canopy arthropod diversity in the Quercus affinis × Quercus laurina complex},
author = {Yurixhi Maldonado-López and Marcela Sofía Vaca-Sánchez and Antonio González-Rodríguez and Ken Oyama and Edmundo López-Barbosa and Marcilio Fagundes and Pablo Cuevas-Reyes},
doi = {10.1007/s10841-018-0103-7},
issn = {15729753},
year = {2018},
date = {2018-01-01},
journal = {Journal of Insect Conservation},
volume = {22},
issue = {5-6},
pages = {781-793},
publisher = {Springer International Publishing},
abstract = {Understanding the factors that influence the diversity and composition of arthropod communities is a major topic in ecology. Canopy arthropod communities are a major constituent of biodiversity and show great variation in time and space according to different factors. Recently, genetic variation within tree species has attracted attention as a significant factor determining the diversity and composition of canopy arthropod communities. A major source of genetic and phenotypic novelty in plant species is interspecific hybridization, and therefore it is of interest to evaluate how this process affects the communities of associated organisms. In this study, we used microsatellite markers and geometric morphometry of leaf shape to analyze genetic and morphological variation in 45 individuals in a local hybrid zone between the oaks Quercus affinis and Q. laurina in Mexico. Individual trees were assigned to one of the parental species or to the hybrid category. The percentage of leaf area removed by herbivores was quantified in each individual and the canopies of five individuals of each categeory (two parental species and hybrids) was fogged with insecticide to assess the diversity and composition of arthropod communities. Results indicated that hybrid trees experience higher levels of herbivory than parental species and also sustain a higher abundance and richness of canopy arthropods. In general, our study supports the “hybrid susceptibility hypothesis” that predicts a higher incidence of associated arthropods on hybrid plants than in their parental species as result of the disruption of co-adapted gene complexes associated to resistance traits.},
keywords = {Arthropod diversity, Canopy, Hybrids, Quercus laurina × Quercus affinis complex},
pubstate = {published},
tppubtype = {article}
}
Understanding the factors that influence the diversity and composition of arthropod communities is a major topic in ecology. Canopy arthropod communities are a major constituent of biodiversity and show great variation in time and space according to different factors. Recently, genetic variation within tree species has attracted attention as a significant factor determining the diversity and composition of canopy arthropod communities. A major source of genetic and phenotypic novelty in plant species is interspecific hybridization, and therefore it is of interest to evaluate how this process affects the communities of associated organisms. In this study, we used microsatellite markers and geometric morphometry of leaf shape to analyze genetic and morphological variation in 45 individuals in a local hybrid zone between the oaks Quercus affinis and Q. laurina in Mexico. Individual trees were assigned to one of the parental species or to the hybrid category. The percentage of leaf area removed by herbivores was quantified in each individual and the canopies of five individuals of each categeory (two parental species and hybrids) was fogged with insecticide to assess the diversity and composition of arthropod communities. Results indicated that hybrid trees experience higher levels of herbivory than parental species and also sustain a higher abundance and richness of canopy arthropods. In general, our study supports the “hybrid susceptibility hypothesis” that predicts a higher incidence of associated arthropods on hybrid plants than in their parental species as result of the disruption of co-adapted gene complexes associated to resistance traits.