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  5. Behavioural Ecology

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Natural significance and ecological functions for animals

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The road infrastructure limits the free movement of organisms in the landscape space. Creating ecological barriers is one of the most serious environmental consequences of road construction. As a result of the impact on the barriers, a harmful effect occurs, which results from the permanent partici...

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  • August 15, 2023
  • 1
  • 2023/2024
  • Lecture notes
  • Rachael
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Natural significance and ecological functions for animals
The road infrastructure limits the free movement of organisms in the landscape
space. Creating ecological barriers is one of the most serious environmental
consequences of road construction. As a result of the impact on the barriers, a
harmful effect occurs, which results from the permanent participation of habitats
on a smaller fragment with hindered contact between disturbances and organisms.
The construction of an animal crossing minimizes the fragmentation of the
environment by:
 determining the isolation of the division and habitat zones of fauna,
 providing the possibilities of the animal breeding area of animals - by
enabling cooperation with obtaining food, looking for the right shelter,
connecting to the breeding place,
 enabling races and migrations, long-distance dispersal of species and
colonization of new habitats,
 preventing downregulation of genes and reducing genetic variability within
Supporting the development of diversity resources and tools with average roads.
Crossings correspond to two basic ecological functions:
 creating conditions for the existence of species and species whose habitats
(individual areas) are crossed by the road - animals have the opportunity to
freely use the entire habitat area divided by the road,
 because migration, migration and dispersion move over long distances - it is
a key function of animal passage, especially for the protection of rare species
with specific spatial requirements (e.g. large predatory mammals).

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