BACKGROUND Tracks of pigeons homing to the Frankfurt loft revealed an odd phenomenon: whereas birds returning from the North approach their loft more or less directly in a broad front, pigeons returning from the South choose, from 25 km from home onward, either of two corridors, a direct one and one with a considerable detour to the West. This implies differences in the navigational process. ...

Confronted with the pressure of increased security threats and financial fraud, Customs administrations worldwide changed regulations and added restrictions to international trade in recent years. At the same time, governments also want to reduce the administrative burden for businesses in order to create an economically competitive zone. The EU is now implementing e-government ideas in new pro...

The I-290 / Illinois Route 53 corridor in the west and northwest suburban areas of Chicago suffers from heavy congestion throughout and beyond peak travel periods. Traffic management strategies, particularly ramp access strategies prioritizing high occupancy vehicle (HOV) travel, have been recommended as a means of mitigating and even reducing congestion in this corridor. The FREQ model develop...

The main aim of this study is to analysed the pattern agglomeration trade flows in city Padang and Teluk Bayur Port with regencies cities along west coast Sumatra, as well factors that influence them. How competitive flow West region compared East Sumatra. analytical approach used spatial econometrics, especially lag model error model. data volume loading unloading inter-island foreign ships at...

The Sunda Arc forms an almost continuous chain of islands and thus a potential dispersal corridor between mainland Southeast Asia and Melanesia. However, the Sunda Islands have rather different geological histories, which might have had an important impact on actual dispersal routes and community assembly. Here, we reveal the biogeographical history of hyperdiverse and flightless Trigonopterus ...

Defining and identifying changes to seasonal ranges of migratory species is required for effective conservation. Historic sightings of migrating whooping cranes (Grus americana) have served as sole source of information to define a migration corridor in the Great Plains of North America (i.e., Canadian Prairies and United States Great Plains) for this endangered species. We updated this effort ...