Creeping into a wild boar stomach to find traces of supplementary feeding

2016 ◽  
Vol 43 (7) ◽  
pp. 590 ◽  
Author(s):  
Ježek Miloš ◽  
Holá Michaela ◽  
Kušta Tomáš ◽  
Červený Jaroslav

Context Supplementary feeding and baiting of wild ungulates is a common management practice. Wild boar is among the most frequently fed species and its numbers are rapidly increasing throughout Europe. It has been suggested that supplementary feeding throughout the year can have intentional and unintentional impacts on the species as well as on European forests and agricultural landscapes, and biodiversity. It is, therefore, important to identify the dependence of wild boar on supplemental foods to determine and predict its feeding patterns under alternative population and land-use management scenarios. Aims We investigated the diet composition of wild boar from stomach contents to identify its dependence on food resources of human origin (i.e. agricultural crops and supplemental foods) throughout the year in the Czech Republic. Methods We collected 345 samples from four study sites during spring, summer and winter seasons, over a 3-year period, and from different wild boar ages and sex classes. Key results Foods of human origin (mainly cereals) were the dominant food category and constituted the bulk of wild boar diet throughout the year (>50% of total stomach-content biomass), especially in winter, and in all the study sites. Cereals found in the stomachs of wild boar in summer might come from both crop fields as well as supplementary feeding. However, cereals identified in the stomachs in winter and spring come predominantly from baiting and supplementary feeding conducted by hunters. Cereals were consumed in different proportions by different ages and sexes. Males fed on cereals more than did females, whereas juveniles depended on such food less than did subadults. Conclusions Our finding of a consistent dependence of wild boar on food of human origin throughout the year in all study sites confirmed that supplementary feeding is important in the diet, which is a potential reason for the rapid increase of wild boar numbers in the Czech Republic. Implications Wildlife management agencies need to target feeding practices and design restrictive measures for supplementary feeding and baiting of wild boar in the Czech Republic. This should include defining maximum amounts of food and precise periods for supplementary feeding, and reducing non-target species at feeding sites.

2010 ◽  
Vol 79 (3) ◽  
pp. 403-407 ◽  
Author(s):  
Jaroslav Kursa ◽  
Ivan Herzig ◽  
Jan Trávníček ◽  
Josef Illek ◽  
Vlasta Kroupová ◽  
...  

The objective of this study was to examine iodine and selenium contents in skeletal muscles of selected species of game animals living in regions with low iodine and selenium contents in the soil and water. Iodine content was determined in 66 samples of skeletal muscles of red deer cut out of the musculus gracilis, 32 samples and 27 samples from the same muscle of roe deer and wild boar, respectively. The shot game animals came from hunting grounds in western and southern regions of the Czech Republic and in Protected Landscape Area Šumava. In red deer muscles the average iodine content was 44.9 ± 15.2 μg I·kg-1 wet weight with the range of 6.9 to 82.0 μg I·kg-1. The lower concentration in roe deer meat with the average 39.3 ± 14.1 μg I·kg-1 and the range from 18.3 to 84.4 μg I·kg-1 may be due to differences between biotopes and food. The average iodine concentration in the musculus gracilis of wild boars was 55.9± 27.0 μg·kg-1 wet weight. Selenium content was determined in 22 samples of red deer, 51 samples of roe deer and 27 samples of wild boar skeletal muscles. The average values of selenium content in the meat of red deer, roe deer and wild boars were 16.2 ± 8.4, 36.9 ± 16.6 and 27.6 ± 19.8 μg Se·kg-1 wet weight, respectively. All three species of game animals are characterised by low content and high variability of selenium concentration in meat with the minimum value 3.9 µg and maximum value 83.3 μg·kg-1 wet weight. The study brings new data on iodine and selenium content in the muscle of game animals in the Czech Republic.


2013 ◽  
Vol 197 (1-2) ◽  
pp. 384-387 ◽  
Author(s):  
P. Paulsen ◽  
P. Forejtek ◽  
Z. Hutarova ◽  
M. Vodnansky

2020 ◽  
Vol 8 (1) ◽  
pp. 49-64 ◽  
Author(s):  
Zdenko Metzker ◽  
Justas Streimikis

The aim of the study is to find out the perception of the concept of corporate social responsibility (CSR) by the segment of small and medium-sized enterprises in the Czech Republic. In connection with the objectives of the study, a questionnaire survey was carried out on a sample of 419 respondents – business owners and managers. The data were collected from September 2019 to January 2020. χ2 and Z-score were used to assess the hypotheses. It was found that there were statistical differences in the perception of some aspects of the positive impact of the introduction of the CSR concept in case of monitoring responses based on the geographic scope of the business. The results showed that although the manager should take into account the ethical and moral implications of his decisions, less than half of the respondents are familiar with the concept of CSR and enforce it in their management practice and ultimately managers cannot identify positive benefits from CSR implementation – it declares positive answers whose values oscillate around 30%. The findings show that there are no statistically significant differences in the answers of managers depending on the size of the company - this proves that micro, small and medium enterprises, respectively their managers do not differ in their attitudes to the topic of CSR. The final effect of the paper is to show the perception of the concept of CSR of entrepreneurs - respondents in the Czech Republic.


2014 ◽  
Vol 60 (No. 4) ◽  
pp. 174-180 ◽  
Author(s):  
R. Plhal ◽  
J. Kamler ◽  
M. Homolka ◽  
J. Drimaj

Wild boar is a native species in the fauna of the Czech Republic. It is becoming a problematic game species both in the Czech Republic and in other European countries due to its harmful impacts. So far no suitable method of its sustainable management has been devised. Yet, a correct abundance estimate is essential for proper management, field crop damage prevention and proper hunting planning. This paper employed faecal pellet group count to estimate the wild boar density in a forest environment. The research was conducted in a study area covering 12.83 km<sup>2</sup>, which is surrounded by farmland. The count was done under ideal conditions in early spring, after snow had melted. The study area was organised into several differing environments in which different dung densities were expected. The presence of feeding sites, where wild boars concentrated, was taken into account. The conducted count confirmed differences in the utilization of different habitats within the study area. The resulting wild boar abundance was estimated at 64.3 (&plusmn; 8.9; 95% CI) indd&middot;km<sup>&ndash;2</sup>. &nbsp; &nbsp;


2008 ◽  
Vol 53 (No. 8) ◽  
pp. 420-426 ◽  
Author(s):  
M. Kopecna ◽  
I. Trcka ◽  
J. Lamka ◽  
M. Moravkova ◽  
P. Koubek ◽  
...  

The objective of this study was to determine the wildlife hosts of Mycobacterium avium subsp. paratuberculosis (MAP) in the Czech Republic. A total of 8 796 wildlife animals were examined by culture of faecal or tissue samples during the years 2002–2007. MAP was isolated from 12 (0.5%) out of 2 296 red deer (Cervus elaphus), two (0.2%) out of 835 roe deer (Capreolus capreolus), 78 (5.7%) out of 1 381 fallow deer (Dama dama), 28 (3.2%)out of 866 mouflons (Ovis musimon), four (2.5%) out of 162 chamois (Rupicapra rupicapra) and from one (0.1%) out of 805 wild boar (Sus scrofa). MAP was not cultured from 82 badgers (Meles meles), 55 martens (Martes foina), one pine marten (Martes martes), 25 brown hares (Lepus europaeus), five rabbits (Oryctolagus cuniculus), nine European polecats (Mustela putorius), two steppe polecats (Mustela eversmannii), two American minks (Mustela vison), four raccoon dogs (Nyctereutes procyonoides) and four Eurasian otters (Lutra lutra). MAP was isolated from three (2.0%) out of 149 small terrestrial mammals: one (5.9%) out of 17 brown rats (Rattus norvegicus), one (1.7%) out of 59 common voles (Microtus arvalis) and one (2.6%) out of 39 lesser white-toothed shrews (Crocidura suaveolens). Culture examinations of 34 house mice (Mus musculus) and 2 113 pigeons (Columba livia f. domestica) were negative. All 123 in vitro growing MAP isolates from wild ruminants were of IS900 RFLP type B-C1. One mouflon infected with a MAP strain which did not grow on the tested media was after IS1311-PRA-PCR assessed as being infected with a “sheep” strain. The RFLP type of the MAP isolate from the wild boar was of the RFLP type A-C10. Although the detection of MAP in wildlife in the Czech Republic was not very high, their role as a potential risk factor for cattle should be considered.


2014 ◽  
Vol 14 (11) ◽  
pp. 801-807 ◽  
Author(s):  
Bohumir Kriz ◽  
Milan Daniel ◽  
Cestmir Benes ◽  
Marek Maly

2012 ◽  
Vol 17 (43) ◽  
Author(s):  
O Šebesta ◽  
I Rudolf ◽  
L Betášová ◽  
J Peško ◽  
Z Hubálek

Between July and September 2012, seventeen larvae of the invasive mosquito species Aedes (Stegomyia) albopictus (Skuse) were discovered using 60 ovitraps at four study sites alongside two main road exits in South Moravia, Czech Republic. This is the first report of imported Ae. albopictus in the Czech Republic. The findings highlight the need for a regular surveillance programme to monitor this invasive species throughout western and central Europe.


2012 ◽  
Vol 40 (2) ◽  
pp. 131-139 ◽  
Author(s):  
I.-M. Bergman ◽  
K. Sandholm ◽  
K. N. Ekdahl ◽  
N. Okumura ◽  
H. Uenishi ◽  
...  

2011 ◽  
Vol 57 (No. 7) ◽  
pp. 285-292 ◽  
Author(s):  
M. Ježek ◽  
K. Štípek ◽  
T. Kušta ◽  
J. Červený ◽  
J. Vícha

Our study aimed to determine morphometric data for wild boar (Sus scrofa) in various areas of the Czech Republic and the potential influence of environment on its body measurements. Three localities with varying agricultural systems and overall landscape structure were selected. Hunted boars were measured for height at the withers, body length, ear length, metatarsal length and weight (depending on the circumstances, either dressed with head, without head, or undressed). We also determined the age of the hunted boars according to teeth development. During 2003&ndash;2007, a total 654 boars were examined in various age categories. Body development was similar in all areas and without statistically significant differences until the age of 6&ndash;7 months. From 8 months, statistically significant differences in body proportions occur across all localities. It is just at that time that carrying capacities change in the selected localities. The results show that morphometric differences among boars of the same age are influenced by external environmental conditions in which the boars live.


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