IS RESOURCE SPECIALIZATION THE KEY?: SOME, BUT NOT ALL RED CROSSBILL CALL TYPES ASSOCIATE WITH THEIR KEY CONIFERS IN A DIVERSE NORTH AMERICAN LANDSCAPE

Red Crossbills (Fringillidae: Loxia curvirostra) are finches specialized to pry open cones and extract seeds of coniferous trees.Within the species, variable bill morphology may provide more efficient foraging on some species of conifers than others.Subgroups also have distinctly different contact calls often given in flight (hereafter, call types)

The aim of this study was concerned on the prevalence of Listeria spp.in the ice cream samples collected from the different pastry shops and downtown stores of Baghdad province during December 2009 till April 2010.A total of 50 Hand Wash ice cream samples (25 locally produced samples from raw and imported powdered milk and 25 imported samples from

The inhabitants and local governments may treat landscape heritage resources as a cumbersome legacy, which disrupts development, or may see its potential, which may serve as the cornerstone for building a sense of local identity.These issues shall be of special importance in the case of areas located on the outskirts of cities, which are subject to

High Explosive Anti-Tank (HEAT) warheads and ammunitions are frequently produced by explosive casting inside an axis-symmetric mold with an inverted conical geometry in the Right Moving Arm basis.In order to prevent manufacturing defects, the solidification process must be controlled.In this study, a dimensionless solidification model has been prop

The aim of this study is to investigate the policies related to access to higher education and work, and more specifically the relation between these policies and the requirements of the current society in terms of the education process.Such requirements are considered in a context strongly related to economic development, in the attempt to align t