Anton Krištín, Filip Tulis, Peter Klimant, Kristián Bacsa and Michal Ambros
Zejda J 1965: Nároky myšice křovinné ( Apodemus sylvaticus ) na prostredí v nížinné oblasti [Claims of wood mouse ( Apodemus sylvaticus ) in lowland environment]. Zoologické listy 14: 301–316. [In Czech]
The following proofs of Goldfish more powerful reproductive potential are given: high individual and relative fecundity, adequate fractional spawning process resulting in numerous off spring, represented by different generations of hatchlings, little number of individuals not participating in reproduction, prevailing number of fish eggs in females’ ovaries, larger fraction of impregnated roe. All the above mentioned factors allow claiming that the Prussian carp is being replaced due to its low replacement ability. Perhaps for that reason Carassius gibelio (Bloch, 1782) choose small isolated water bodies, where it makes small populations, backed up by successful spawning with a single male of crucian carp, Carassius carassius (Linnaeus, 1758).
Distribution and Bionomics of Udea Alpinalis (Lepidoptera, Pyralidae) in Western Carpathians (Slovakia)
Here we summarize all known and new localities with occurrence of Udea alpinalis (Denis et Schiffermüller, 1775) in Slovakia. Furthermore, based on our data we discuss distribution, hypsometric claims and variability of forewings design.
In 2002 a pest biologist (LEIRS 2002) calculated the survival chances of the European hamster (Cricetus cricetus) according to data provided by participants of the meeting of the International Hamster Workgroup in Tongeren. His model was based predominantly on demographic data as birth rates and predicted that the European hamster will be extinct in Western Europe within the next 50 years. Since then, the mean number of litters females raise in a year has diminished from 2-3 to 1-2. It is thus to be feared that the remaining time is only half as long as predicted and extinction might occur around 2030. However, since then hamster protection measures have improved considerably and two major milestones have been reached: (1) we are able to breed captive hamsters in a sufficient number and (2) most released hamsters survive long enough to reproduce once. Thus, at the present state we can claim that the hamster won.t go extinct as long as such breeding and releasing programs are in place. However, we haven.t achieved a state yet at which it is clear that the hamster will survive with its own means when such programs are stopped. To work on this will be the task of the coming years. This review might be a starting point for that. It reflects on which other factors possibly impair the survival of European hamster populations besides some aspects of modern agriculture, thus it searches for parameters which are not yet considered in conservation programs. Historical data as well as observations and research data from other species are reviewed. Additionally, new insights from the subterranean life of European hamsters in outdoor terrariums are presented, which suggest that the soil as habitat might need more attention in conservation. However, this conjecture can provide only new ideas, which still have to be confirmed by research. The intention is to spark a lively discussion on such potential alternative reasons for the decline of European hamsters, whether some of them are worth being investigated and whether we overlooked something. There is not much time left.
Boudegga H., Boughalleb N., Barbouche N.,Hamouda M. H. B., El Mahjoub M. (2010) In vitro inhibitory actions of some essential oils on Ascosphaera apis, a fungus responsible for honey bee chalkbrood. Journal of Apiculture Research 49(3): 236-242. DOI: 103896/ibra.1.49.3.02.
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EMA (2008) Guideline on veterinary
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Soroka, N., Goncharov, S. 2015. Method of allocation metacercariae trematodes Paracoenogonimus ovatus; The applicant and patentee National University of Life and Environmental Sciences of Ukraine. No. 103347; 06.25.2015 claimed; publ. 12.10.2015, bul. No. 23.
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-Saharan migrant birds? Global Change Biology , 11 (1), 12–21.
Grishchenko, V. N. 2014. Timing of the spring arrival of dabbling ducks in Ukraine. Berkut , 23 (1), 26–39 [In Russian].
Grishchenko, V. N., Gavrilyuk, M. N. 2000. Phenology of bird migrations in area of the Kaniv Nature Reserve in the second half of XXth century. Zapovidna sprava v Ukrayini , 6 (1–2), 67–76 [In Russian].
Haest, B., Hüppop, O., Bairlein, F. 2018. Challenging a 15-year-old claim: The North Atlantic Oscillation index as a predictor of spring migration phenology of birds
nitrogen fertilization trials in Finland. Agric. Food Sci. , 13(1-2): 68-79. DOI https://doi.org/10.2137/1239099041838076
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, 1979 ); Bulgaria ( Biserkov & Kostadinova, 1998 ); Central Asia ( Andrusko & Markov, 1956 ); China ( Li, 1934 ); Portugal ( Galdon et al., 2006 ); Russia (Dugarov et al.,2018); Spain ( Roca et al., 1990 ); Turkey (Yıldırımhan et al., 2011); Ukraine ( Sharpilo et al., 2001 ).
Remarks : The life history of S. hoffmanni apparently has not been studied. However the cogener S. galliardi is claimed by Chabaud et al. (1988) to produce two types of egg, one thin-shelled and containing third-stage larva, probably autoinfective and a seond, red, thicker shelled with
). Functional foods: Needs, claims, and benefits. Nutrition, 28: 338-339.
Horska E., Sparke K. (2007). Marketing attitudes towards the functional food and implications for market segmentation. J. Eur. Consum. Behav., 53: 349-353.
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Hulbert A.J., Faulks S., Buttemer W.A., Else P.L. (2002). Acyl composition of muscle membranes varies with body size in birds. J. Exp