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Habitat selection in post-breeding temperate forest birds
THRIKKADEERI, Karthik
Habitat selection of forest birds in Branišovský les, České Budějovice, Czech Republic was studied by observing habitat preferences in the non-breeding season and exploring possible shifts in preferences due to the changing seasons. Patterns of habitat selection were analysed at multiple levels: considering all bird species as well as comparing between two feeding guilds. Preferences were also studied by specifically monitoring predation rates by birds on artificial caterpillars and exploring changes with habitat and season.
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The effect of urbanization on life-history strategies in birds
Houšková, Karolína ; Sedláček, Ondřej (advisor) ; Poláková, Simona (referee)
Urbanisation process is recently a wide-spread process that causes high-impact environmental transformation. Habitats affected by urbanization tend to change substantially and ongoing changes influence organisms living in this environment. Urban environment modifies many abiotic conditions (e.g. temperature, artificial light and noise) and biotic factors (e.g. food supply, parasite prevalence, predation pressure) in comparison to natural habitats. In this manner, especially urban bird populations have recently gained broad attention by an increasing number of ecologists. Urban avoiders - typically sensitive and specialized bird species often vanish from urbanized landscapes. However, many bird species were able to colonize urban environment and coexist successfully with man. Populations of birds living in such a new type of environment show many characteristics different from populations living in original habitats. The objective of this work is to review current studies about changes of life strategies in urban bird populations such as modifications of acoustic signals, differences in reproductive and food ecology and physiological or behavioural responses.
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The effect of urbanization on life-history strategies in birds
Houšková, Karolína ; Sedláček, Ondřej (advisor) ; Poláková, Simona (referee)
Urbanisation process is recently a wide-spread process that causes high-impact environmental transformation. Habitats affected by urbanization tend to change substantially and ongoing changes influence organisms living in this environment. Urban environment modifies many abiotic conditions (e.g. temperature, artificial light and noise) and biotic factors (e.g. food supply, parasite prevalence, predation pressure) in comparison to natural habitats. In this manner, especially urban bird populations have recently gained broad attention by an increasing number of ecologists. Urban avoiders - typically sensitive and specialized bird species often vanish from urbanized landscapes. However, many bird species were able to colonize urban environment and coexist successfully with man. Populations of birds living in such a new type of environment show many characteristics different from populations living in original habitats. The objective of this work is to review current studies about changes of life strategies in urban bird populations such as modifications of acoustic signals, differences in reproductive and food ecology and physiological or behavioural responses.
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Evaluation of Great Cormorant predation activities (Phalacrocorax carbo sinensis) during the spring and autumn migration to ponds on School´s Piscicapture in Protivín between the years 2009-2011
KOTLÍN, Vít
Evaluation of Great Cormorant predation activities (Phalacrocorax carbo sinensis) during the spring and autumn migration to ponds on School´s Piscicapture in Protivín between the years 2009 - 2011 and compensation for damages in accordance to the law No. 115/2000 Coll. I compared the results of self-monitoring with the majority known information from many sources in the literature and confirmed the fact that predation pressure are frequently exposed those ponds which are providing food supply in the form of dense fish stock with an acceptable piece weighing 0.03 to 0.5 kg independently on the size of the pond. Confirmed facts are exposed to the conclusion on today's constantly evolving legislation allowing compensation for damages caused by Great cormorant - Act No. 115/2000 Coll. versus regulations No. 393/2012 Coll. and No. 432/2005 Coll.
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