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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Zjišťování početnosti prasete divokého v lesním prostředí
 Hrubý, Petr
In the last time, there are growing problems with wild boar. Their overpopulation and problematic estimation of population density is a problem which is attached with another problems. The database of scientific papers dealing with the same topic was created. After that the suitable estimating methods was chosen for my future field works. In the locality of the Litovelské Pomoraví Protected Landscape Area, research was carried out to verify the estimation methods for wild boar (Sus scrofa) in forest environment. By the chosen method of direct observation was established the density of 128 individuals per 1000 hectares. The second chosen method was the method of the faecal pellet group counting within the striped transects. This method was modified and transects were situated on 21 experimental areas, which were equally distributed in the study area. By this method a density of 124 individuals / 1000 ha was determined. The results of the work show that it is advisable to use two independent counting methods to obtain an accurate estimate of the number of wild boar in the forest environment.
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Zhodnocení distribuce trusu prasete divokého v lesním prostředí jako podkladu k odhadu jeho početnosti
 Drimaj, Jakub
In study area near the town of Jihlava, formed by two forest hunting grounds, was realized a survey of distribution of droppings of wild boar (Sus scrofa L.) in order to verify the validity and improvement of dung census methods to estimate wild boars density in the forest environment. Counting of droppings was performed after the fall of the snow cover (before the growth of vegetation), on uniformly spaced lines (in strip transects), set by using geoinformation system and GPS devices. Each faecal pellet group (FPG) was geographically focused (GPS coordinates) and comprehensive database of 3 442 FPG was analysed over the digitized map data of Lesy ČR, s. p. (LHP). The average FPG density in the forest environment was 143,4 FPG.ha-1 and wild boar abundance was estimated at 19 individuals.km-2.
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