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13. Karyotypes of central European spiders of the genera Arctosa, Tricca, and Xerolycosa (Araneae: Lycosidae)

Creator:
Dolejš, Petr, Kořínková, Tereza, Musilová, Jana, Opatová, Věra, Kubcová, Lenka, Buchar, Jan, and Král, Jiří
Type:
article, články, model:article, and TEXT
Subject:
Zoologie, entomologie, Česko, Rakousko, Czechia, Austria, Lycosidae, spiders, karyotype, sex chromosomes, meiosis, constitutive heterochromatin, nucleolar organizer region, 2, and 59
Language:
English
Description:
The aim of this study was to characterize karyotypes of central European spiders of the genera Arctosa, Tricca, and Xerolycosa (Lycosidae) with respect to the diploid chromosome number, chromosome morphology, and sex chromosomes. Karyotype data are reported for eleven species, six of them for the first time. For selected species the pattern in the distributions of the constitutive heterochromatin and the nucleolar organizer regions (NORs) was determined. The silver staining technique for detecting NORs of lycosid spiders was standardized. The male karyotype consisted of 2n = 28 (Arctosa and Tricca) or 2n = 22 (Xerolycosa) acrocentric chromosomes. The sex chromosome system was X1X20 in all species. The sex chromosomes of T. lutetiana and X. nemoralis showed unusual behaviour during late diplotene, namely temporary extension due to decondensation. C-banding technique revealed a small amount of constitutive heterochromatin at the centromeric region of the chromosomes. Two pairs of autosomes bore terminal NORs. Differences in karyotypes among Arctosa species indicate that the evolution of the karyotype in this genus involved autosome translocations and size changes in the sex chromosomes. Based on published results and those recorded in this study it is suggested that the ancestral male karyotype of the superfamily Lycosoidea consisted of 28 acrocentric chromosomes. and Petr DOLEJŠ, Tereza KOŘÍNKOVÁ, Jana MUSILOVÁ, Věra OPATOVÁ, Lenka KUBCOVÁ, Jan BUCHAR, Jiří KRÁL.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

14. Medvěd hnědý, jeho vyhubení a návrat do naší přírody. 1

Creator:
Jan Andreska
Format:
print
Type:
article, články, model:article, and TEXT
Subject:
Zoologie, medvěd hnědý, vyhubení, Česko, 2, and 59
Language:
Czech
Description:
Detailed knowledge of the circumstances behind the extermination of particular animal species is a key premise for their eventual return, reintroduction and ongoing preservation. Data on the presence of the Brown Bear (Ursus arctos) in the Czech landscape are usually limited to simple entries about the day and place where the last specimens in particular (usually mountainous) regions were slain. Demand for more precise data, especially regarding the last documented presence of bear cubs, has emerged in respect of the recently discovered ability of bears to migrate over long distances. The newly collected data allowed the author to present amuch more complete historical view of the process of extermination of the Brown Bear in the Czech territory. and Jan Andreska.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

15. Medvěd hnědý, jeho vyhubení a návrat do naší přírody. II

Creator:
Jan Andreska
Format:
print
Type:
article, články, model:article, and TEXT
Subject:
Zoologie, medvěd hnědý, Česko, 2, and 59
Language:
Czech
Description:
The prolonged survival of the Brown Bear (Ursus arctos) population in the Bohemian Forest was largely possible due to the protec tion of this animal, which was considered a rare and desirable trophy. Consequently the bear was able to survive in the Bohemian Forest for a hundred years longer than in the Ore Mountains. Isolated populations in the Sudetes survived in Moravia, and the last specimens were hunted down in the 1740s. Bears hunted down during the 19th century in the Beskydy Mts. can almost certainly be considered casual migrants from the Slovak part of this mountain range. The return of bears to the territory of Moravia and Silesia corresponds with the consolidation of the Slovak population due to the protection introduced in 1932. and Jan Andreska.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

17. Naši rýhonosci. 1. Nosatí elegáni

Creator:
Robert Stejskal and Trnka, Filip
Format:
print
Type:
article, články, model:article, and TEXT
Subject:
Zoologie, hmyz, brouci, nosatcovití, biologické druhy, morfologie živočichů, škůdci rostlin, insects, beetles, Curculionid beetles, biological species, animal morphology, pests of plants, Česko, Czechia, 595.76, 2, and 59
Language:
Czech
Description:
This paper introduces a very interesting group of curculionid beetles – weevils of the tribe Cleonini. This tribe includes quite a remarkable large species associated with non-forest habitats, most of which are currently considered endangered. In spite of being very popular among coleopterists, this group of beetles has not been studied in detail within the Czech Republic. and Robert Stejskal, Filip Trnka.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

18. Naši rýhonosci. 2. Napudrovaní krasavci

Creator:
Robert Stejskal and Trnka, Filip
Format:
print
Type:
article, články, model:article, and TEXT
Subject:
Zoologie, hmyz, brouci, nosatcovití, Česko, 2, and 59
Language:
Czech
Description:
This paper introduces a very interesting group of curculionid beetles–weevils of the tribe Lixini. This tribe includes a quite re-markable large species, most of which are currently considered endangered. They are associated with non-forest habitats and re-quire various kinds of habitat disturbation which ensures their successful survival., Robert Stejskal, Filip Trnka., and 13 barev. fot.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

19. Pedomorfní albíni čolka obecného - první nález v České republice

Creator:
Kopecký, Oldřich, Hataš, Petr, and Holer, Tomáš
Format:
print
Type:
article, články, model:article, and TEXT
Subject:
Zoologie, čolek, Česko, 2, and 59
Language:
Czech
Description:
Five albinotic individuals of the Common Newts (Lissotriton vulgaris), including two paedomorphic females, were caught on 15th April 2013 in a water reservoir in the village Stará Lysá. this is the first record of paedomorphic albinos of newts in the Czech Republic. The behaviour of albinotic individuals was observed in a laboratory for a period of one month. and Oldřich Kopecký, Petr Hataš, Tomáš Holer.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

20. Poznejte naše zobonosky

Creator:
Robert Stejskal and Trnka, Filip
Format:
print
Type:
article, články, journal articles, model:article, and TEXT
Subject:
Zoologie, hmyz, nosatcovití, listy rostlin, insects, Curculionid beetles, plant leaves, Česko, Czechia, 2, and 59
Language:
Czech
Description:
Článek představuje jednu skupinu nosatcovitých brouků – zobonosky čeledí Attelabidae a Rhynchitidae. Těžištěm výskytu těchto brouků jsou tropické oblasti, v ČR žije 29 druhů. Zobonosky jsou typické tvorbou různě utvářených smotků na listech rostlin sloužících k vývoji larev, některé druhy napadají plody, pupeny a větvičky. Většina druhů je vázána na lesní biotopy, dále sady, zahrady nebo louky., This paper introduces a group of curculionid beetles – the Leaf Rolling Weevils of the families Attelabidae and Rhynchitidae. Most species are known from tropical regions, while in the Czech Republic 29 species are recorded. These beetles create various kinds of leaf rolls for their larvae; some species develop in fruits, buds or branches. Most species are associated with forest habitats, but they also live in orchards, gardens and on meadows., and Robert Stejskal, Filip Trnka.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public