Počet nalezených dokumentů: 6
Publikováno od do

Influence of recreational activities on the distribution of forest wild boar rooting
Drimaj, J.; Balková, M.; Špoula, J.; Kamler, J.; Mikulka, O.; Plhal, R.; Homolka, Miloslav
2023 - anglický
The wild boar is a widely distributed and locally very numerous animal. The same is true in the conditions of Central Europe. Outside the growing season, it concentrates in forests, where it also actively searches for food sources. During this activity, it disturbs the soil surface, thereby significantly affecting the dynamics of the ecosystem. From an economic point of view, it limits the natural renewal of tree species, but from an ecological point of view, it changes habitat conditions and thus helps to increase biodiversity. Factors influencing the distribution of rooting across forest stands may be different. In this paper, we focused on the human factor and its influence on the rooting activity of wild boar in the Hodonínská Dúbrava, National natural monuments. Klíčová slova: animal activity; disturbance; diversity; soil surface; wildlife Dokument je dostupný na externích webových stránkách.
Influence of recreational activities on the distribution of forest wild boar rooting

The wild boar is a widely distributed and locally very numerous animal. The same is true in the conditions of Central Europe. Outside the growing season, it concentrates in forests, where it also ...

Drimaj, J.; Balková, M.; Špoula, J.; Kamler, J.; Mikulka, O.; Plhal, R.; Homolka, Miloslav
Ústav biologie obratlovců, 2023

Mortality of small animals on singletrails in Marianské údolí valley (Brno, Czech Republic)
Homolka, Miloslav; Mikulka, O.; Kamler, J.; Drimaj, J.; Plhal, R.
2021 - anglický
Singletrail areas became a part of tourist business all over the world. Cycling routes usually go through the natural environment, they are used especially in the summer and therefore are quite evident that small animals are killed on them. The submitted contribution indicates what effects have the traffic on the singletrail on small animals in the deciduous forest environment (Brno, Czech Republic). During singletrail traffic insects and small vertebrates were killed. The number of cadavers of individual species was relatively small on the trails (3800 individuals of insect and 51 of vertebrates one during 3 months on the 11 km of the route) and traffic most probably does not endanger the existence of any animal species at the local population level. Mostly the common species were perished on the trails, but individuals of specially protected and endangered species were also killed there (Calosoma sycophanta, Bombus spp., Anguis fragilis, Bufo bufo) so this fact should not be overlooked and underestimated. For ethical and educational reasons, the construction of new singletrail areas should be preceded by careful research of particular area in order to map the distribution of small animals and choose the route with regard to minimizing mortality, especially endangered species of fauna. Klíčová slova: Cadavers; Insects; Mountain bikers; Vertebrates; Wood Dokument je dostupný na externích webových stránkách.
Mortality of small animals on singletrails in Marianské údolí valley (Brno, Czech Republic)

Singletrail areas became a part of tourist business all over the world. Cycling routes usually go through the natural environment, they are used especially in the summer and therefore are quite ...

Homolka, Miloslav; Mikulka, O.; Kamler, J.; Drimaj, J.; Plhal, R.
Ústav biologie obratlovců, 2021

Influence of singletrails on wildlife distribution in the tourist attractive area of Mariánské údolí (Brno)
Drimaj, J.; Mikulka, O.; Kamler, J.; Plhal, R.; Homolka, Miloslav
2021 - anglický
The growing popularity of active movement in nature in the form of an adrenaline experience is the cause of the great expansion of singletrails. New singletrails are still being built with varying degrees of difficulty, and the density is thickening across the entire Czech Republic. This form of leisure time use is closely linked to the forest environment and the animals that occur in it. The cyclist usually moves very quickly along a narrow path through the forest and it is a question of how his disturbance will affect large mammals around the singletrails. For monitoring purposes, we selected four study areas (two with singletrails and two without singletrails) with the presence/absence of hiking paths where we observed the long-term influence of singletrails on the distribution and behaviour of common species of large mammals through animal marks. The results showed that where the roe deer was not disturbed, a balanced proportion of beds (places where the roe deer rested) and marking places (places that the roe deer marked) was recorded. However, in areas with disturbance in the form of tourists, far fewer beds were found than marking places. The presence of singletrails did not play a role in this. Klíčová slova: Cycling; Roe deer; Tourism; Wild boar; Wildlife behaviour Dokument je dostupný na externích webových stránkách.
Influence of singletrails on wildlife distribution in the tourist attractive area of Mariánské údolí (Brno)

The growing popularity of active movement in nature in the form of an adrenaline experience is the cause of the great expansion of singletrails. New singletrails are still being built with varying ...

Drimaj, J.; Mikulka, O.; Kamler, J.; Plhal, R.; Homolka, Miloslav
Ústav biologie obratlovců, 2021

Cycling and its influence on animal behavior
Mikulka, O.; Drimaj, J.; Plhal, R.; Homolka, Miloslav; Kamler, J.
2021 - anglický
In terms of impact on society, cycling brings a number of benefits, including the impact on mental and physical health, reducing emissions and the economy of target areas. With the growing popularity of this sport, it also brings negative effects, especially on natural ecosystems. Few studies point to the influence of wildlife behavior. At the same time, the results are important for use in the construction of cycle paths in nature and especially protected areas. The study deals with the influence of cycling of single-track cycling trails in the forest environment, on the spatial behavior of wildlife in a suburban locality, which is very intensively visited by humans. The study partially demonstrated the interfering effect on wildlife, which was detected through the distribution of roe deer (Capreolus capreolus) and wild boar (Sus scrofa) signs. However, the nature of the environment, which affects the intensity of interference, plays an important role. The intensity of trail traffic had a small effect. The results of the study can serve as a basis for designing cycle paths for the future. Klíčová slova: Hiking; Nature conservation; Recreation; Wildlife Dokument je dostupný na externích webových stránkách.
Cycling and its influence on animal behavior

In terms of impact on society, cycling brings a number of benefits, including the impact on mental and physical health, reducing emissions and the economy of target areas. With the growing popularity ...

Mikulka, O.; Drimaj, J.; Plhal, R.; Homolka, Miloslav; Kamler, J.
Ústav biologie obratlovců, 2021

Settlement of the landscape with European beaver (Castor fiber) in relation to anthropogenic influences
Mikulka, O.; Patočka, Z.; Drimaj, J.; Kamler, J.; Plhal, R.; Homolka, Miloslav
2019 - anglický
The European beaver (Castor fiber) is a protected species in the Czech Republic that has spread to the whole of Moravia. Now, it is a common species whose competitor is only human. The aim of this study was to evaluate the impact of human activity, especially tourism or transport, on the settlement of the landscape by the European Beaver. The area of the protected landscape area Litovelske Pomoravi was chosen to evaluate the settlement of the landscape by the beaver, where the beaver forms a stable population for a long time and the frequented cycling routes, hiking trails and the area are frequently visited by natural floodplain forests. The beaver settlement data were collected by means of the winter monitoring of residential stamps using the GPS system in 2017. Data on the location of cycle routes, hiking trails, human settlements and infrastructure were obtained from available GIS layers. Settlement of European beaver was evaluated in relation to the distance and intensity of interference by tourist activities, traffic or buildings. There were 200 km of watercourses in the monitored area. The inhabited beaver was 39% of the length. The beaver avoided human settlements, preferring the natural environment. The influence of tourism on the beaver settlement has not been proven. Klíčová slova: classification-system; habitat selection; population; landscape; protection species; recreation; infrastructure; colonization Dokument je dostupný na externích webových stránkách.
Settlement of the landscape with European beaver (Castor fiber) in relation to anthropogenic influences

The European beaver (Castor fiber) is a protected species in the Czech Republic that has spread to the whole of Moravia. Now, it is a common species whose competitor is only human. The aim of this ...

Mikulka, O.; Patočka, Z.; Drimaj, J.; Kamler, J.; Plhal, R.; Homolka, Miloslav
Ústav biologie obratlovců, 2019

Toxic effect of fluorescence pigment on zebra fish (Danio rerio)
Poštulková, E.; Mareš, J.; Halačka, Karel; Kopp, R.
2016 - anglický
The aim of the study was to determine the toxic effects of organic pigments Alizarin Red S and Alizarin Complexone on zebra fish (Danio rerio). For short-term acute toxicity tests on zebra fish concentration of 150; 300 and 600 mg/L were chosen for both dyes. Toxic effect of dyes was observed even in the variant with 10 g/L of sodium chloride. Addition of sodium chloride increases the deposition of dyes in the bone structures of the fish. LC50 values were analyzed graphically by using probit analysis. There was no mortality during the acute toxicity test with Alizarin Red S even at the highest concentration. Toxicity value (72hLC50) for zebra fish with a combination of Alizarin Red S + 10 g/L of sodium chloride is 546.42 mg/L. Mortality for Alizarin Complexone was 100% in 24 hours at\nconcentrations of 300 and 600 mg/L, with concentrations of 150 mg/L there was no mortality. In Alizarin Complexone supplemented with 10 g/L of sodium chloride was 100% mortality at all\nconcentrations up to 72 hours. Klíčová slova: Alizarin Red S; Alizarin Complexone; LC50; fish; marking Dokument je dostupný na externích webových stránkách.
Toxic effect of fluorescence pigment on zebra fish (Danio rerio)

The aim of the study was to determine the toxic effects of organic pigments Alizarin Red S and Alizarin Complexone on zebra fish (Danio rerio). For short-term acute toxicity tests on zebra fish ...

Poštulková, E.; Mareš, J.; Halačka, Karel; Kopp, R.
Ústav biologie obratlovců, 2016

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