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Start Over Creator Frouz, Jan

2. Ekologie obnovy narušených míst

Creator:
Prach, Karel, Frouz, Jan, Karešová, Petra, Konvalinková, Petra, Koutecká, Věra, Mudrák, Ondřej, Novák, Jan, Řehounek, Jiří, Řehounková, Klára, Tichý, Lubomír, Trnková, Romana, and Tropek, Robert
Type:
article and TEXT
Language:
Czech
Description:
Tento díl je zaměřen především na obnovu ekosystémů na výsypkách po těžbě uhlí, v lomech, vytěžených štěrkopískovnách a rašeliništích. Pokud není zničena nějaká cenná lokalita, maloplošná těžba může často být obohacením krajiny. I v případě větších těžeben a navazujících výsypek a odvalů nemusí být za určitých okolností jejich existence negativní. Mohou se stát útočišti pro mnoho druhů rostlin i živočichů, které z běžné, intenzivně využívané krajiny mizejí. Podmínkou ovšem je, že těžbou narušená místa nejsou technicky rekultivována, nýbrž jsou ponechána spontánní, případně mírně řízené (usměrňované) nebo uměle blokované sukcesi. and The article deals mainly with the restoration of ecosystems situated in spoil heaps from coal mining, in quarries, disused gravel-sand pits and extracted peatland. A small-scale excavation can enrich the landscape if it does not cause damage to a rare locality. Even greater excavations and dumps do not necessarily have a negative effect on the environment. Such localities can be used for conservation of numerous plant and animal species disappearing from the surrounding intensively utilized landscape. Nevertheless, such localities need to be left to spontaneous succession or managed only to a small degree, without technical reclamation.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/

4. Půda - živý systém: Interakce půdní fauny a mikroflóry a jejich význam pro přeměny organické hmoty v půdě

Creator:
Frouz, Jan
Type:
article, model:article, and TEXT
Language:
Czech
Description:
Living soil role of invertebrate microbial interaction in organic matter transformation in soil. Soil harbor large diversity of organisms various sizes and ecological strategies. Soil microflora play principal role in enzymatic decomposition of organic matter, however microbial activity can be significantly affected by soil fauna which alter conditions in soil environment and thus microbial activity. These invertebrate microbial interactions and its role in soil organic matter transformation are described and discussed.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

5. Survival strategies of chironomids (Diptera: Chironomidae) living in temporary habitats: a review

Creator:
Frouz, Jan, Matěna, Josef, and Ali, Arshad
Type:
article, model:article, and TEXT
Subject:
Insect ecology, midges, colonization, metapopulation, desiccation/frost, resistance, and source-sink habitats
Language:
English
Description:
Many species of chironomids undergo their immature development in habitats that rapidly change in suitability, such as rain pools, phytotelmata, freshly filled ponds or soil layers that seasonally dry out. Strategies for the utilization of these habitats can be divided into two groups: i) physiological or behavioral adaptations of larvae, which enable them to survive unsuitable conditions (in situ resistance) or ii) repeated recolonization of temporarily suitable habitats. In situ resistance, includes desiccation or frost resistance, often in combination with cocoon building and migration of larvae into the sediment. Generally, the species that use the recolonization strategy tend to be better at migration and have a higher fertility and shorter development. Recolonization may include only temporary habitats or temporary habitats and some more stable habitats as well.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public