Boxplots of the proportion of call types (y-axis) for females (top, nfemales = 12) and males (bottom, nmales = 10) over the detailed breeding stages (x-axis, UP: Unpaired, NN: No nest, Inspec: Nest inspection, Terr: Nest defence, Build: Nest building, Lay: Egg-laying, Incub: Incubation).
Vocal activity (number of distance, tet, stack, cackle, and whine calls, green points = means, green lines = standard errors) and specificity of vocal interactions within pairs (red bars) and with non-pair members (grey bars) over the breeding stages (UP: Unpaired, NN: No nest, Inspec: Nest inspection, Terr: Nest defence, Build: Nest building, Lay: Egg-laying, Incub: Incubating).
The Environment Agency's responsibilities include national flood risk management and defence-building, as well as pollution and waste control.
Locations with damage to defences, buildings and structures, will be especially vulnerable.
The defence ministry building was among the targets, according to the AFP news agency.
Wednesday's bombing took place early in the morning in a central part of Sanaa near the central bank and the defence ministry building.
On Thursday, further clashes were reported as Islamist students protested in an eastern district of the capital where the defence ministry building is located.
Edward III responded by improving the quality of the town defences, including building walls along the old ditch and bank defences, and particularly focusing on improving the west side of the town, but little work appears to have been done to improve the castle itself.
One answer is to seek new roles: cyber-defence, and building ties with India and China.
One compelling defence of buildings is the basic human urge to congregate.
France, for instance, has leased out a defence-ministry building on the Place de la Concorde, moving its occupants to less plush offices on the outskirts of Paris.
