broj: 3-4/2003        pdf (28,3 MB)



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Znanstveno-stručno i staleško glasilo
Hrvatskoga šumarskoga društva
Journal of Forestry Society of Croatia
      Prvi puta izašao 1877. godine i neprekidno izlazi do današnjeg dana
   ISSN No.: 0373-1332              UDC 630* https://doi.org/10.31298/sl
upute autorima
WEB EDITION
ARHIVA ČASOPISA


HRČAK


 
ORIGINAL SCIENTIFIC PAPERS
     
Margaletić, J., Glavaš, M., Pavić, K. UDK 630* 451 (001)
The Numerousness of Small Rodents and their Harmfulness in the Management Unit of “Južna Krndija I (Kutjevačka)” and in the Nursery “Hajderovac”.     pdf     HR     EN 99
Summary: The numerousness of small rodent population was researched by the linear transect method, as well as their damages on forest seeds and young plants in the Management unit "Južna Krndija I (Kutjevačka)" and in a nursery "Hajderovac". The total of 32 hunting transects has been set up (16 at each site). In order to choose an individuals bait in luring rodents, two baits of plant (carrot and apple) and two of the animal origin (canned sea fish and bacon) were tested. Most individuals were caught on carrot and fish. Rodents were sampled in a period from the end of September 1999 till the beginning of March 2000. The total of 50 individuals was sampled on both sites (30 in a forest stand and 20 in a nursery). The following species were determined: Apodemus agrarius (Pall.), A. flavicollis (Melch.), A. sylvaticus (L.) and Clethrionomys glareolus (Schreib.). 92.00 % of sampled individuals belong to species from the genus Apodemus, while only 8 % of the catch belongs to voles (genus Clethrionomys). The most numerous species was A. agrarius. In one transect the catch in 20 % of placed traps was recorded. Most animals were caught in October and November and the least in March. The higher number of rodents was determined in the forest in comparison to a nurserry which is explained by a more high-quality habitat conditions. Acorn was collected in order to establish damages from small rodents on a bay oak acorn and a durmast oak acorn in the shape of various intensity bites 1 - 2 mm wide. The acorn was divided into two categories: damaged and undamaged acorn. The damaged acorn was additionally analysed for the presence of insects Curculio glandium (L.) and Cydia spp. in order to determine if small rodents cause damages only on healthy seeds or if they damage seeds previously damaged by insects. The acorn was collected in the autumn 1999 on five experimental plots, dimensions 10 x 10 meters. The acorn yield was poor. The following damages were recorded in the pedunculate oak forest: from small rodents 22.33 %, from insects 13.49 % and from rodents and insects together 7.44 % of samples. In a sample of sessile oak damages were from small rodents 13.41 %, from insects 13.42 % and from rodents and insects together 4.88 % of samples.
In conditions of poor acorn yield rodents caused damages on approximately 40 % of samples (damages only from rodents and from rodents and insects together). Most acorns damaged by rodents were noticed on a sample not previously damaged by insects. The damage intensity on young plants was determined on the experimental plot on which the numerousness of small rodents was also followed. The total of four experimental plots dimensions 3 x 3 were set up on places rich with young plants. One analysis included about 257 plants. In the period from October 1999 till March 2000 plants were examined four times. Damages on young plants were recorded on 7.39 % of samples. In order to take protection measures on time, the regular determination of numerousness of small rodent population has been recommended.
Key words: small rodents; damages; forest seeds; forests stand; nursery
Križanec, R. UDK 630* 612 + 613 (001)
New Variants of Time Management of Selection Forests     pdf     HR     EN 109
Ballian, D. UDK 630* 165 (001)
Estimate of the Genetic Variability of Silver Fir (Abies alba Mill.) by Analysis of Isoenzymes in the Part of Natural Populations of Bosnia and Hercegovina and Croatia     pdf     HR     EN 135
 
REVIEWS
     
Vojniković, S. UDK 630* 188
The History and Recent Problems of the Phytocoenological Nomenclature and Classification     pdf     HR     EN 153
 
PROFESSIONAL PAPERS
     
Margaletić, M. UDK 630* 931 + 891
The Exploitation of Mineral Raw Materials in Relation to the Forest and Forest Land     pdf     HR     EN 161
Nodilo, J. UDK 630* 432
Fire in the Open Space of the Islands and Littoral - Accident or a Logical Sequence of Events     pdf     HR     EN 171

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