Publicaciones

@article{Gonzalez-Esquivel2019,

title = {Functional attributes of two Croton species in different successional stages of tropical dry forest: effects on herbivory and fluctuating asymmetry patterns},

author = {José Gerardo González-Esquivel and Pablo Cuevas-Reyes and Antonio González-Rodríguez and Luis Daniel Ávila-Cabadilla and Mariana Yolotl Álvarez-Añorve and Marcilio Fagundes and Yurixhi Maldonado-López},

doi = {10.1007/s42965-019-00027-y},

issn = {26618982},

year  = {2019},

date = {2019-01-01},

journal = {Tropical Ecology},

volume = {60},

issue = {2},

pages = {238-251},

abstract = {Tropical dry forests are among the most threatened ecosystems in the world. After habitat perturbation occurs, the habitat recovers naturally through ecological succession. This succession can modify functional attributes of plants, which in turn, can affect herbivorous insects’ performance. We analyzed morphological, functional, and chemical traits associated with herbivory patterns in Croton roxanae and C. suberosus, that occur in mature and secondary forests in the tropical dry forest of Chamela, Jalisco. Leaf area and leaf thickness were higher in secondary forest, while leaf density and fresh leaf mass were higher in mature forest. Dry leaf mass, specific leaf area, chlorophyll content, and water content showed variation between species in both forest conditions. The concentration of secondary metabolites showed variation between species and forest conditions. Croton roxanae showed higher herbivory in mature forest, and C. suberosus did not show differences between the two conditions. Leaves in secondary forest were slightly longer and broader than leaves in mature forest. Croton species showed higher fluctuating asymmetry in secondary forest. Herbivory was not associated with levels of fluctuating asymmetry levels in both Croton species. Our results suggest that plant attributes are influenced by forest condition, which in turn, indirectly affect the attack of herbivores.},

keywords = {Alkaloids, Chemical defense, Herbivores, land use change, Morphological variation, Phenols, Succession},

pubstate = {published},

tppubtype = {article}

}

@article{Cuevas-Reyes2017,

title = {Effects of herbivory and mistletoe infection by Psittacanthus calyculatus on nutritional quality and chemical defense of Quercus deserticola along Mexican forest fragments},

author = {Pablo Cuevas-Reyes and Griselda Pérez-López and Yurixhi Maldonado-López and Antonio González-Rodríguez},

doi = {10.1007/s11258-017-0721-2},

issn = {15735052},

year  = {2017},

date = {2017-01-01},

journal = {Plant Ecology},

volume = {218},

issue = {6},

pages = {687-697},

abstract = {Mistletoes are parasitic plants that show effects that can parallel or contrast with those caused by herbivores to their host plants, particularly on aspects such as host biomass, resource allocation patterns, and interspecific interactions at the community level. In this study, we evaluated the potential synergistic effects of herbivory and infection by the mistletoe Psittacanthus calyculatus on nutritional quality and chemical defense of the white oak Quercus deserticola along forest fragments in Mexico. For this, we sampled leaves of parasitized oaks, unparasitized oaks and mistletoes at four forest fragments in the Cuitzeo basin, Michoacán state, Mexico, and measured herbivory levels and foliar water content, total nonstructural carbohydrates, phenols, flavonoids, and hydrolyzable tannins in each sample. Higher levels of infection by P. calyculatus were found in the smaller forest fragments, while foliar damage by herbivores was higher in larger forest fragments. At all sites, levels of herbivory were lower in the mistletoe than in both parasitized and unparasitized oaks. However, there was a positive relationship between herbivory levels in parasitized oaks and their mistletoes. Also, foliar water content and total phenol concentration were positively correlated between the oaks and the mistletoes. The results suggest that herbivory levels in parasitized hosts and mistletoes depend on the close physiological interaction between the nutritional quality and the chemical defense of the two plants involved. This is one of the few studies analyzing the chemical ecology of the interaction between plant hosts and plant parasites.},

keywords = {Chemical defense, Forest fragmentation, Herbivory, Mistletoes, Nutritional quality, Plant–plant interactions},

pubstate = {published},

tppubtype = {article}

}