| 10.02.03

Auszug
in deutsch |
3. The management of the bear population
in Slovenia at present
Reasons
for the increased cull of bears in 2002
Why
the decision to cull more bears in 2002?
Problems
connected with the coexistence of man and bear in Slovenia have
started to increase particularly over the last five to seven years
and have escalated in the last two to tree years.
There
are a number of reasons for this, which cannot be wholly explained,
as experts provide assessments of the reasons from their own particular
point of view and cannot agree either on the reasons themselves
or their relative importance.
It
is unarguable that the Slovene bear population is progressively
increasing, as is the area in which they live. These two reasons,
alongside other as yet unnamed ones, have led to difficulties. Today,
the number of bears in Slovenia exceeds the sustainable capacity
of their environment and problems involving bears have turned the
image of the species into a negative one.
How do we ascertain the number of
bears?
The
absolute number is not the only important factor, more significant
is the population trend which is, as already mentioned, a progressive
one. The absolute number is used only when it is necessary to decide
in what way and how much to encroach into the population by culling,
starting from the assessed number of bears, which again differs
depending on the point of view.
Whether the number of bears can be simulated with various models
or whether it is easier to assess it on the basis of "hard"
facts derived from the actual monitoring of the population, is left
to individual judgement.
The
actual monitoring of the bear population in Slovenia means that
the number of bears is ascertained via direct counts in relatively
permanent places (bear feeding stations, feeding stations for wild
boar, and other counting places) and via the daily monitoring indices
in the Forests Institute of Slovenia professional game breeding
areas in the central bear zone, encompassing an area of over 70,000
ha.
All
hunting organisations in whose hunting grounds bears are permanently
present participate in this, counting bears on the same day (on
a moonlit night), two to three times a year. After the count, the
collected forms are analysed and any sightings judged on the basis
of the time they were recorded to be duplicated, are excluded. This
method was devised a few years ago by Dr Miha Adamic, together with
the Hunting Association of Slovenia.
With
this count, it is possible to show the population trend, as well
as determining the social structure of the population, that is the
proportion of bears sighted involving female bears with cubs. We
maintain that on the counting nights, when there are also optimum
weather conditions, it is possible to sight and count at the feeding
stations up to 70% of the bear population. After the count, hunting
organisations fill another part of the form, where they estimate
the number of bears more or less constantly present in their hunting
grounds, which were not spotted during the count. And this produces
the difference between the numbers recorded (the number of animals
actually counted - the assessed number). The results of the counts
over the last three years are shown in the following table:
| Bears
in Slovenia |
2002 |
 |
|
Cubs
per female |
1,86 |
 |
Cubs
in their 1st/2nd year |
186 |
 |
Females |
100 |
 |
Counted
in total |
468 |
 |
No.
of counting locations |
372 |
 |
Assessed
number |
894
|
Auszug
in deutsch
|
|
Year
and count no. |

No.
of counting locations |

Assessed
number |

Counted
in total |

Females |

Cubs
in their 1st + 2nd year |
Cubs per female |
|
2000 - 1 |
206
|
580
|
228
|
51
|
87
|
1,71
|
|
2000 - 2 |
278
|
621
|
326
|
67
|
156
|
2,33
|
|
2000 - 3 |
315
|
696
|
432
|
84
|
156
|
1,86
|
|
2001 - 1 |
293
|
547
|
212
|
41
|
76
|
1,85
|
|
2001 - 2 |
290
|
566
|
285
|
57
|
103
|
1,81
|
|
2001 - 3 |
321
|
612
|
279
|
53
|
104
|
1,96
|
|
2002 - 1 |
349
|
731
|
344
|
57
|
105
|
1,84
|
|
2002
- 2 |
372
|
894
|
468
|
100
|
186
|
1,86
|
Comparing
all the counts, the most interesting is the number in the last column
- the number of cubs per female (in their 1st and 2nd year) - which
is very stable, most often around 1.8 to 2 cubs per female, the
lowest number - only 1.71 - occurring in April 2000, and the highest
- 2.33 - in May 2000.
The number of bears counted (since 2000) was highest in the last
count, as was the assessed number of bears, which additionally confirms
the thesis about the progressive growth of the population. We estimate,
that the annual increment of bears (newly born) in Slovenia is between
100 and 150.
It
should be mentioned here that we estimate the survival level of
cubs to be very high, the main reason being the sufficiency of both
natural food and food offered to bears by man (at feeding stations,
etc.).
::damages
by bears::
|