Paraná, Yungas and Chaco Serrano ecoregions are among the most species-rich terrestrial habitats at higher latitude. However, the information for tiger moths, one of the most speciose groups of moths, is unknown in these ecoregions. In this study, we assess their species richness and composition in all three of these ecoregions. Also we investigated whether the species composition of tiger moth...

ABSTRACT The Carte Synoptique catalogue of solar filaments from March 1919 to December 1989, corresponding to complete cycles 16 to 21 is utilized to show latitudinal migration of filaments at low latitudes ( less than 50), and the latitudinal drift of solar filaments in each hemisphere in each cycle of the time interval is compared with the corresponding drift of sunspot groups. The latitudina...

A re biotic interactions, such as competition and predation, stronger in the tropics than at higher latitudes? Biologists have long speculated that more intense interactions tend to occur at lower rather than at higher latitudes as a result of year-round warm and wet conditions near the equator, particularly in lowland tropical rainforests (1). This idea is now well established in the ecologica...

A super–rotating atmosphere with equatorial winds of ∼ 35m s is simulated using a simplified Venus General Circulation Model (GCM). The equatorial super-rotation in the model atmosphere is maintained by barotropic instabilities in the the mid–latitude jets which transport angular momentum towards the equator. The mid–latitude jets are maintained by the mean meridional circulation and the moment...

[1] The Hubble Space Telescope (HST) data set obtained over two campaigns in 2007 is used to determine the long-term variability of the different components of Jupiter’s auroras. Three regions on the planet’s disc are defined: the main oval, the low-latitude auroras, and the high-latitude auroras. The UVauroral power emitted from these regions is extracted and compared to estimated solar wind c...