ECOLOGY, BEHAVIOR AND BIONOMICS Effi cient Sampling of Ground-Dwelling Arthropods Using Pitfall Traps in Arid Steppes

ECOLOGY, BEHAVIOR AND BIONOMICS Geostatistical Characterization of the Spatial Distribution of Xylella fastidiosa Sharpshooter Vectors on Citrus

The spatial distribution of the three principal species of sharpshooter (Dilobopterus costalimai Young, Acrogonia sp. e Oncometopia facialis Signoret), vectors of Xylella fastidiosa causal agent of Citrus Variegated Chlorosis, was studied by using geostatistics. The evaluations were carried out in a commercial ‘Pera’ sweet orange (Citrus sinensis [L.] Osb.) grove budded on Rangpur lime (Citrus ...

ECOLOGY, BEHAVIOR AND BIONOMICS Galling Arthropod Diversity in Adjacent Swamp Forests and Restinga Vegetation in Rio Grande do Sul, Brazil

Galling arthropods create plant structures inside which they fi nd shelter. Factors acting on galler diversity are still being discussed, with this fauna considered more diverse in xeric than mesic environments (higrothermic stress hypothesis, HSH), and also in more plant diverse sites. Here we compare galler abundance (N), equitability (E), species richness (S) and composition between adjacent...

ECOLOGY, BEHAVIOR AND BIONOMICS The Importance of Beta Diversity in Local Gall-Inducing Arthropod Distribution

Many studies over the past twenty years have documented the richness of arthropod galling species around the world, and some have proposed hypotheses to explain local and global patterns of galling species richness. However, few studies have been directed toward understanding how the gall-inducing species are locally distributed. The aim of this study was to determine the distribution of gall-i...

Ecology, Behavior and Bionomics First Genotyping of <i>Spodoptera frugiperda</i> (J. E. Smith) (Lepidoptera: Noctuidae) Progeny from Crosses between Bt-Resistant and Bt-Susceptible Populations, and 65-Locus Discrimination of Isofamilies

ECOLOGY, BEHAVIOR AND BIONOMICS Seasonal Fecundity and Body Size in Chrysomya megacephala (Fabricius) (Diptera: Calliphoridae)

In this study the seasonal variation of fecundity, wing and tibia size was investigated in natural populations of Chrysomya megacephala (Fabricius) aiming at determining the variations in life history of the species as a function of seasonality. A relative constant temporal trajectory was found for fecundity, wing and tibia size over twelve months. Strong positive correlations between wing size...