DIGITALNA ARHIVA ŠUMARSKOG LISTA
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ŠUMARSKI LIST 9-10/1982 str. 37     <-- 37 -->        PDF

clear Power Plant was at that the indirect cause. Investigation has demonstrated
the importance of the former forests in the life of birds, whether these be groups
of trees or little sections of primary forests with all the characteristic gradations;
dead solitary trees, branches on the borders of antrophogenic grounds faces or
on the edges of small forests. The process of change through these three and a half
years of investigation, taking 1978 as the basis for comparaison, had been directed
towards uniformity, clearing, i. e. »beutification« of the landscape. Unfortunately,
this caused the impoverishment or the complete dissappearance of certain biotopes
and key ecological niches. The process of civilization moves forward while the results
become those which typically encroach into the actual urban ecology, posing
a particular problem in the highly civilized countries.


According to the yearly reports which have been published to the present day
(Štroma r 1978, 1979, 1980, 1981), the role of the enumerated vegetation remains
can be seen because birds have been able satisfy their basic requirments for life.
The requirments of birds for such biotopes can be classified but cannot be separated
because they are intertwined and connected with the daily and yearly rhytm of
migration: a) nesting sites, b) resting places, c) places to spend the night, d) orientation
and lookout sites, regarding food or enemies, e) sources of food, f) refuge
from enemies,g) all the above is expressed in the phenomen of migration in its various
gradations (Štromar , 1971) such as invasions, movemnts between migrations,
early summer migrations, as well as regular migrations.


The results of investigations show that it is an indisputable fact that the material
possibilities of man in the process of civilization tend to a higher standard
of laving and endanger the natural base of the biosphere wich could negatively reflect
on man in future. At the present time and within our coordinates, these urban
ecological problems become ever more present and unfortunately we do not lag
behind countries with high standard of living.


What actual measures can be taken? Almost nothing is possible because the
process of civilization does not stand still, but moves on and cannot be stoped as
such. Man as a rational being could take a specific stand, bearing in mind that the
position of our country in the southeast part of Europe, as well as the varibility of
biotopes, are percoditions for ensuring a rich bird fund. Is it possible to neglect
these anthropogenic influences with regard to the region of the Krško Nuclear Power
Plant, and permit only the remains of the primary vegetation so important to
bird survival to exist?


Primljeno 13. 06. 1987.