Buscar
Mostrando ítems 61-70 de 114
The Effects of Volcanic Ash from Puyehue-Caulle Range Eruption on the Survival of Dichroplus vittigerum
(Florida Entomological Society, 2013-04)
The aim of this work was to evaluate the toxicity of volcanic ash from the volcanic complex Puyehue-Caulle Range on the grasshopper, Dichroplus vittigerum, and compare the results with the effect of diatomaceous earth, an ...
Variability of Minisatellite Loci and mtDNA in Individuals with and without B Chromosomes from Populations of the Grasshopper Dichroplus elongatus
(Springer, 2017-06)
Dichroplus elongatus is an extensively distributed South American grasshopper considered a pest of major crops. Argentinean populations show a widespread B-chromosome polymorphism which could be maintained as the result ...
Morphometric differentiation in a field population of Dichroplus maculipennis (Orthoptera: Acrididae: Melanoplinae) under outbreak and non-outbreak situations
(Orthopterists' Society, 2015-12)
Dichroplus maculipennisis one of the most damaging grasshopper species of Argentina. Individuals of this species at high density are historically known to show aggregation behavior and dispersal flights, attributes that ...
Spatial genetic structure and mitochondrial DNA phylogeography of Argentinean populations of the Grasshopper dichroplus elongatus
(Public Library of Science, 2012-07)
Many grasshopper species are considered of agronomical importance because they cause damage to pastures and crops. Comprehension of pest population dynamics requires a clear understanding of the genetic diversity and spatial ...
Application of Beauveria bassiana using different baits for the control of grasshopper pest Dichroplus maculipennis under field cage conditions
(Elsevier Science, 2019-10)
Dichroplus maculipennis is a widely distributed species, occurring in several countries of southern South America. Poisoned baits are effective for the control of insect pests. Adding attractants and phagostimulants could ...
Spatial Variation in Body Size and Wing Dimorphism Correlates with Environmental Conditions in the Grasshopper Dichroplus vittatus (Orthoptera: Acrididae)
(Oxford University Press, 2018-06)
Wing dimorphism occurs widely in insects and involves discontinuous variation in a wide variety of traits involved in fight and reproduction. In the current study, we analyzed the spatial pattern of wing dimorphism and ...
Effect of vegetable oils as phagostimulants in adults of Dichroplus vittigerum (Orthoptera: Acrididae)
(Entomological Society of America, 2019-06)
Several species of grasshoppers are attracted to vegetable oils. These oils have kairomonal properties mainlydue to the presence of linolenic and linoleic fatty acids. This study aimed to determine whether the odors ofcanola, ...
Contrasting patterns of sexual size dimorphism in the grasshoppers Dichroplus vittatus and D. pratensis (Acrididae, Melanoplinae)
(Orthopterists' Society, 2008-12)
Sexual size dimorphism (SSD) can be the result of sexual selection (SS) or natural selection (NS). Due to male-male competition for access to females, SS could favor an increase in male body size. On the other hand, larger ...
Latitudinal clines in the grasshopper Dichroplus elongatus: Coevolution of the A genome and B chromosomes?
(Wiley, 2013-04)
Argentine populations of Dichroplus elongatus (Orthoptera: Acrididae) are polymorphic for B chromosomes. Previous studies showed that B chromosomes affect body size and some fitness components in Northwestern populations. ...
Phenotypic variation and sexual size dimorphism in Dichroplus elongatus (Orthoptera: Acrididae)
(Entomological Society of America, 2015-07)
Patterns of body size evolution are of particular interest because body size can affect virtually all the physiological and life-history traits of an organism. Sexual size dimorphism (SSD), a difference in body size between ...