SpletLatitudinal patterns in biotic interactions, including herbivory, have been widely debated during the past years. In particular, recent meta-analysis questioned the hypothesis that herbivory increases from the poles towards the equator. Our study was designed to verify this hypothesis by exploring latitudinal patterns in abundance and diversity ... Splet02. jun. 2016 · Knowledge of latitudinal patterns in plant defense and herbivory is crucial for understanding the mechanisms that govern ecosystem functioning and for predicting …
Oak Herbivory at Jasper Ridge Dirzo Lab - Stanford University
Spletinteractions, the Latitudinal Herbivory-defense Hypothesis (hereafter LHDH, Coley and Aide 1991) predicts that increasing herbivore pressure at lower latitudes should select for greater investment in plant defenses (Pennings et al. 2001, 2009; Rasmann and Agrawal2011).Indeed,thediversityandabundanceof herbivores including both generalists … SpletLatitudinal herbivory-defense hypothesis (LHDH): the hypothesis that there is greater herbivore pressure and that plants are better defended from herbivores toward the tropics. Phytometer: a plant used to assay some component of the physical or biotic environment through its response to experimental conditions. Plant iprotec inspector pro
Optimal defense theory explains deviations from latitudinal herbivory …
SpletWe experimentally assessed (1) the presence of genetic variance in tolerance, total resistance, and leaf trichome density as specific defense trait, (2) the extent of natural selection acting on plant defenses, and (3) the relationship between total resistance and leaf trichome density with tolerance to herbivory in the annual herb Datura ... SpletEqual area Behrmann projection, 96 km × 96 km resolution small clutch sizes for its latitudinal range and seasonality, and little African lizards do increase with temperature seasonality, no factor within-continent variation (Figure 3, but see Supporting Information except body mass (Hypothesis 6) emerged as related to lizard clutch Figure S1). SpletResearch has shown that some plants respond to enhanced UV-B radiation by producing smaller and thicker leaves, by increasing the thickness of epidermis and concentration of UV-B absorbing compounds of their surface layers and activation of … iprotec rm230 rail-mount