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Start Over Rights http://creativecommons.org/licenses/by-nc-sa/4.0/ Subject 2 Type články Harvested from CDK

62. Betaglukany: nadějné přírodní imunomodulační látky

Creator:
Petr Šíma
Format:
print
Type:
article, články, model:article, and TEXT
Subject:
Obecná biologie, přírodní látky, imunomodulancia, 2, and 57
Language:
Czech
Description:
Betaglucans are highly conserved structural polysacharids in the cell walls of bacteria, cyanobacteria, algae, seaweed, yeast, fungi, lichens, and some plants, particularly grain. They belong to a group of active natural substances commonly called biological response modifiers (BRM) and play a role as potent immune response stimulators in all multicellular animals. Their effects against infectious diseases and in cancer therapy have been described in many experimental research studies and human case histories but their functional mechanisms have not yet been fully elucidated. and Petr Šíma.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

63. Bezobratlí - jejich výuka a výzkum na Univerzitě Karlově v Praze

Creator:
Jan Buchar
Format:
print, bez média, and svazek
Type:
article, text, články, journal articles, model:article, and TEXT
Subject:
Biologické vědy, Univerzita Karlova., Katedra systematické zoologie, 19.-21. století, bezobratlí, studium a výuka, přírodovědný výzkum, zoologové, invertebrates, study and teaching, natural science research, zoologists, čeští zoologové, czech zoologists, 2, and 57/59
Language:
Czech
Description:
Jan Buchar.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

64. Bezobratlí na katedře ekologie Přírodovědecké fakulty Univerzity Karlovy v Praze

Creator:
Jan Fott
Format:
print, bez média, and svazek
Type:
article, text, články, journal articles, model:article, and TEXT
Subject:
Biologické vědy, Univerzita Karlova., Katedra ekologie, ekologie, přírodovědný výzkum, bezobratlí, ecology, natural science research, invertebrates, univerzitní výzkum, university research, 2, and 57/59
Language:
Czech
Description:
Jan Fott.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

65. Biodiversity - economy or ecology? Long-term study of changes in the biodiversity of aphids living in steppe-like grasslands in Central Europe

Creator:
Osiadacz, Barbara, Hałaj, Roman, and Chmura, Damian
Format:
print, počítač, and online zdroj
Type:
article, články, journal articles, model:article, and TEXT
Subject:
Zoologie, polokřídlí, Hemiptera, Aphidoidea, bio-ecological groups, community structure, protected habitats, loss of biodiversity, human impact, NMDS methods, regional hotspots, 2, and 59
Language:
English
Description:
This paper examines the changes in the species composition of aphids living in dry calcareous grasslands in Central Europe over a 25-year period. To the best of our knowledge, this is the first analysis of this type in the world that takes into account both previous and current data on species richness as well as groups of aphids that are distinguishable on the basis of biological and ecological criteria such as host-alternation and feeding types, life cycle, ecological niche, symbiosis with ants and their ecological functional groups. Over the period of more than 25 years, there has been a significant decrease in aphid α-diversity, from 171 to 105 species. The gain, which is in species not previously recorded, was 17 taxa. The loss of biodiversity occurred despite the fact that these habitats are protected and are valuable regional biodiversity hotspots. The losses are mostly related to intensive human activity in adjacent areas, which, unfortunately, has resulted in the isolation of these small, protected environmental islands by the removal of ecological corridors. Since, as is shown in this study, the frequencies between individual biological and ecological groups of aphids have been retained, it would be possible to restrict this loss of biodiversity if appropriate actions are taken., Barbara Osiadacz, Roman Hałaj, Damian Chmura., and Obsahuje bibliografii
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

66. Biogeografie a šíření kudlanky nábožné v Evropě

Creator:
Vitáček, Jakub and Janšta, Petr
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Biologické vědy, biogeografie, kudlanky, biogeography, Mantodea, Evropa, Europe, kudlanka nábožná, Praying Mantis, Mantis religiosa, 2, and 57/59
Language:
Czech
Description:
Kudlanka nábožná (Mantis religiosa) je příklad teplomilného druhu, který v posledních letech začal expandovat i do severnějších oblastí Evropy. Na základě studia mitochondriálních markerů se ukázalo, že v rámci Evropy kudlanky náleží do tří odlišných genetických linií. Tyto linie (západoevropská, středoevropská a východoevropská) se postupně po poslední době ledové šířily na sever z různých glaciálních refugií. Tuto teorii také podporují paleoklimatická data a distribuční modely možného šíření kudlanek po poslední době ledové., The Praying Mantis (Mantis religiosa) is an example of a thermophilic species, which has recently been expanding northwards across Europe. Based on the study of mitochondrial genes, it has been shown, that the European M. religiosa belong to three different genetic lineages (West-, Central- and East-European). These lineages have been gradually spreading northwards from different glacial refugias after the last glacial period. This theory has also been supported using paleoclimatic data and distribution models of the potential spread of M. religiosa after the last glacial period., and Jakub Vitáček, Petr Janšta.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

67. Biological parameters of Duponchelia fovealis (Lepidoptera: Crambidae) reared in the laboratory on two diets

Creator:
Zawadneak, Maria A. C., Gonçalves, Rodrimar B., Poltronieri, Alex S., Santos, Bráulio, Bischoff, Adélia M., Borba, Aline M., and Pimentel, Ida C.
Format:
print, počítač, and online zdroj
Type:
article, články, journal articles, model:article, and TEXT
Subject:
Zoologie, motýli, jahody, rozmnožování (biologie), butterflies, strawberries, reproduction, Lepidoptera, Crambidae, Duponchelia fovealis, European pepper moth, artificial diet, life cycle, development, biological parameters, 2, and 59
Language:
English
Description:
Duponchelia fovealis Zeller is a polyphagous insect that has been recently reported attacking strawberry plants (Fragaria x ananassa Duchesne). Despite its economic importance there are few studies on this pest because it is difficult to rear it in the laboratory. With a constant supply of insects, studies on alternative methods of pest control can be conducted. This study aimed at developing an artificial diet for rearing D. fovealis with biological characteristics similar to those reared on their natural diet. This study was carried out in a climate-controlled room (25°C ± 2°C, RH 70% ± 10%, and 14L : 10D). The natural diet consisted of 'San Andreas' strawberry leaves (D1), while the artificial diet (D2) was developed in which beans, casein, soy protein, yeast and wheat germ are used as sources of protein. Five instars were identified. D. fovealis completed its life cycle in 38 and 40 days when fed D1 and D2, respectively. Survival was highest for the larvae fed the artificial diet. Females fed D1 lay a mean of 300.2 ± 62.3 eggs, while those fed D2, 220.3 ± 41.8 eggs. The artificial diet is suitable for the continuous rearing of D. fovealis in the laboratory., Maria A. C. Zawadneak, Rodrimar B. Gonçalves, Alex S. Poltronieri, Bráulio Santos, Adélia M. Bischoff, Aline M. Borba, Ida C. Pimentel., and Obsahuje bibliografii
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

69. Biologické invaze a paraziti - příběh raků a račího moru

Creator:
Eva Kozubíková
Format:
print
Type:
article, články, journal articles, model:article, and TEXT
Subject:
Zoologie, raci, parazitologie, crayfish, parasitology, 2, and 59
Language:
Czech
Description:
Severoameričtí raci (např. rak pruhovaný a rak signální vyskytující se i v ČR) jsou příkladem invazních živočichů, jejichž invazní potenciál je zesílen přenosem onemocnění nebezpečného pro příbuzné druhy z jiných geografických oblastí. Původcem nemoci, tzv. račího moru, je Aphanomyces astaci ze skupiny Oomycetes způsobující úhyny celých populací evropských raků. Račí mor se v Evropě vyskytuje už od 19. století a i v současnosti zůstává přes intenzívní výzkum jedním z nejvýznamnějších faktorů ohrožujících původní raky (u nás jde o raka říčního a raka kamenáče, u nichž bylo jen od roku 2004 zaznamenáno deset případů zdecimování populací touto nemocí)., North American crayfish species such as the Spiny-cheek Crayfish and the Signal Crayfish are examples of invasive animals with an ability to carry and transmit a disease lethal to their relatives from other parts of the world. The disease called the crayfish plague and caused by Aphanomyces astaci (Oomycetes) may eradicate whole populations of the indigenous European crayfish. The disease is known in Europe from the 19th century and despite intensive research it is still one of the main factors endangering indigenous crayfish., and Eva Kozubíková-Balcarová.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

70. Biologie bezobratlých na Přírodovědecké fakultě Univerzity Hradec Králové

Creator:
Pech, Pavel, Petr Bogusch, and Michal Andreas
Format:
print, bez média, and svazek
Type:
article, text, články, journal articles, model:article, and TEXT
Subject:
Biologické vědy, Univerzita Hradec Králové., Přírodovědecká fakulta, Přírodovědecká fakulta., Katedra biologie, bezobratlí, studium a výuka, přírodovědný výzkum, invertebrates, study and teaching, natural science research, výzkum bezobratlých, výzkum, univerzitní výzkum, research, university research, 2, and 57/59
Language:
Czech
Description:
Pavel Pech, Petr Bogusch, Michal Andreas.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

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