How to leverage existing resources to meet the current and future needs of cities
Crumbling streets and bridges. Poorly performing schools and inadequate social services. These are common complaints ...in cities, which too often struggle just to keep the lights on, much less make the long-term investments necessary for future generations.
It doesn't have to be this way. This book by two internationally recognized experts in public finance describes a new way of restoring economic vitality and financial stability to cities, using steps that already have been proven remarkably successful. The key is unlocking social, human, and economic wealth that cities already own but is out of sight-or "hidden." A focus on existing public wealth helps to shift attention and resources from short-term spending to longer-term investments that can vastly raise the quality of life for many generations of urban residents.
A crucial first step is to understand a city's balance sheet-too few cities comprehend how valuable a working tool this can be. With this in hand, taxpayers, politicians, and investors can better recognize the long-term consequences of political decisions and make choices that mobilize real returns rather than rely on more taxes, debt, or austerity.
Another hidden asset is real estate. Even poor cities own large swathes of poorly utilized land, or they control underperforming utilities and other commercial assets. Most cities could more than double their investments with smarter use of these commercial assets. Managing the city's assets smartly through the authors' proposed Urban Wealth Funds-at arm's-length from short-term political influence-will enable cities to ramp up much needed infrastructure investments.
In March 2009, active Magpie Pica pica nests were censused in the town of Sombor (Vojvodina, NW Serbia) to study nest-site characteristics, breeding density and spatial distribution. The area of the ...town can be divided into two parts according to different urban landscapes, i.e. the town centre (150 ha) and the residential area (2,224 ha). In total, 222 Magpie nests were found and their height, tree species and nest-site type determined. Nests were found in 25 tree and two shrub species, the most of them (31.1%) being placed in the commonest tree species in the town, the Common Hackberry Celtis occidentalis. The majority of the nests were found in tree avenues (39.6%) and groups of trees (31.5%). Nests in the town centre with a mean height (± SD) of 15.2 ± 4.05 m were significantly higher than those in the residential area with a mean height (± SD) of 11.4 ± 5.13 m. The mean distance of nests from the top of the canopy (± SD) was 1.5 ± 1.33 m, demonstrating the Magpie's tendency to place its nests in the very tops of trees in the urban areas. In the residential area, nests were present in every height class, while in the town centre they were not found lower than 5 m. This difference can be explained by denser human population in the town centre and hence greater disturbance (e.g. pedestrians), as found in several other studies, but also by the negative effect of high buildings that prevail there. Thus, the height of surrounding buildings, too, might play an important role in nest-site selection in Magpies breeding in urban habitats, especially in densely built-up areas. Breeding density of Magpie in Sombor was 0.94 pairs/10 ha, with almost twice as high in the town centre as in the residential area. The findings of this study are compared to those obtained in other studies in Serbia and abroad.
Značilnosti gnezdišč in gnezditvena gostota srake Pica pica v Somboru (SZ Srbija)
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