Aliveria mojmiri sp. nov. among other flying and ground squirrels (Rodentia, Mammalia) from the early Miocene of Mokrá-Quarry sites (Moravia, Czech Republic)

2021 ◽  
pp. 1-14
Author(s):  
Isaac Bonilla Salomón ◽  
Àngel H. Luján ◽  
Martin Ivanov ◽  
Martin Sabol
Keyword(s):  
Czech Republic ◽  
Ground Squirrels ◽  
Early Miocene

scholarly journals Geographic variability in the alarm calls of the European ground squirrel

2019 ◽  
Vol 66 (4) ◽  
pp. 407-415 ◽  
Author(s):  
Irena Schneiderová ◽  
Lucie Štefanská ◽  
Lukáš Kratochvíl
Keyword(s):  
Czech Republic ◽  
Ground Squirrel ◽  
Function Analysis ◽  
Mammalian Species ◽  
Ground Squirrels ◽  
Alarm Calls ◽  
Geographic Variability ◽  
The Czech Republic ◽  
Spermophilus Citellus ◽  
Different Origins

Abstract Geographic variability in vocalizations has been documented in many mammalian species. We examined to what extent it applies to the alarm calls of the European ground squirrel Spermophilus citellus. We recorded the calls of 82 adult individuals from 5 natural colonies in the Czech Republic and 24 adult individuals from an artificial seminatural colony located in a Czech zoo. The founders of this colony originated from 4 different natural colonies in the Czech Republic. Our results showed that there are hardly any differences in the acoustic structure of the alarm calls between male and female European ground squirrels. Discriminant function analysis showed the highest degree of discriminability for the most isolated sites (54–74% of individuals classified correctly), whereas the lowest degree of discriminability was found for 2 interconnected colonies (38–40% individuals classified correctly). Individuals from the artificial seminatural colony were often classified correctly to this colony (58% classified correctly); however, the precision of the classification was comparatively relatively low, that is, many individuals from other colonies were incorrectly classified into this seminatural colony. This likely corresponds to the different origins of its founders. These findings indicate that there is a rather substantial geographic variability in the alarm calls of the European ground squirrel, and our study highlights its possible impact on conservation measures such as establishing artificial colonies or reintroductions.

An evaluation of palaeogeography and palaeoecology in the Most Basin (Czech Republic) and Saxony (Germany) from the late Oligocene to the early Miocene

2014 ◽  
Vol 272 (1) ◽  
pp. 13-45 ◽  
Author(s):  
Karel Mach ◽  
Vasilis Teodoridis ◽  
Tomáš Matys Grygar ◽  
Zlatko Kvaek ◽  
Peter Suhr ◽  
...  
Keyword(s):  
Czech Republic ◽  
Early Miocene ◽  
Late Oligocene

Blera miocenica: a new species of Early Miocene hoverfly (Diptera: Syrphidae) from the Czech Republic and its palaeoenvironmental significance

2019 ◽  
pp. 1-9
Author(s):  
Jiří Hadrava ◽  
Valentin Nidergas ◽  
Klára Daňková ◽  
Martina Pecharová ◽  
André Nel ◽  
...  
Keyword(s):  
Czech Republic ◽  
New Species ◽  
Feeding Strategy ◽  
Habitat Preferences ◽  
Early Miocene ◽  
Wing Venation ◽  
Larval Feeding ◽  
Flower Visitation ◽  
Extant Species ◽  
A New Species

A new species of fossil hoverfly (Syrphidae: Eristalinae), i.e., Blera miocenica sp. nov. is described from the Early Miocene (Burdigalian) of Bílina mine in the Most Basin, Czech Republic. The species description is based on a well preserved compressed fossil and it represents the first known fossil record of the genus Blera Billberg, 1820 so far. B. miocenica sp. nov. diagnosis is based on the wing venation and other body characters like the coloration pattern of abdomen. The resemblance of the new fossil to extant species of Blera is briefly discussed. The previously suggested palaeoenvironmental conditions at the type locality are in agreement with the knowledge on autecology of recent representatives of the genus Blera (i.e., larval feeding strategy, adult habitat preferences and flower visitation). Thus, we conclude that fossil hoverflies could be a helpful tool for the indication of past habitats.

scholarly journals First record of Diplocynodon ratelii Pomel, 1847 from the early Miocene site of Tušimice (Most Basin, Northwest Bohemia, Czech Republic)

2019 ◽  
Vol 18 (7) ◽  
pp. 877-889 ◽  
Author(s):  
Àngel H. Luján ◽  
Milan Chroust ◽  
Andrej Čerňanský ◽  
Josep Fortuny ◽  
Martin Mazuch ◽  
...  
Keyword(s):  
Czech Republic ◽  
First Record ◽  
Early Miocene
Sign in / Sign up

Export Citation Format

Share Document