Terrestrial Mollusks (Gastropoda) of the Slovechansko-Ovrutsky Ridge (Zhytomyr Region, Northern Ukraine)
Thirty-five species of terrestrial mollusks were found in the Slovechansko-Ovrutsky ridge. Findings of Clausilia cruciata, Ruthenica filograna and Monachoides vicinus are especially interesting. Reproductive system of Morlina glabra is described. Problems of the conservation of terrestrial mollusks...
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Інститут зоології ім. І.І. Шмальгаузена НАН України
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irk-123456789-1095732016-12-03T03:01:48Z Terrestrial Mollusks (Gastropoda) of the Slovechansko-Ovrutsky Ridge (Zhytomyr Region, Northern Ukraine) Balashov, I. Фауна и систематика Thirty-five species of terrestrial mollusks were found in the Slovechansko-Ovrutsky ridge. Findings of Clausilia cruciata, Ruthenica filograna and Monachoides vicinus are especially interesting. Reproductive system of Morlina glabra is described. Problems of the conservation of terrestrial mollusks in the region are discussed. На территории Словечанско-Овручского кряжа зарегистрированы 35 видов наземных моллюсков. Особо интересны находки таких видов как Clausilia cruciata, Ruthenica filograna и Monachoides vicinus. Приведено описание половой системы Morlina glabra. Обсуждаются проблемы охраны наземных моллюсков в регионе. 2012 Article Terrestrial Mollusks (Gastropoda) of the Slovechansko-Ovrutsky Ridge (Zhytomyr Region, Northern Ukraine) / I. Balashov // Вестник зоологии. — 2012. — Т. 46, № 6. — С. 491–497. — Бібліогр.: 21 назв. — англ. 0084-5604 DOI 10.2478/v10058-012-0042-9 http://dspace.nbuv.gov.ua/handle/123456789/109573 594.3(477) en Вестник зоологии Інститут зоології ім. І.І. Шмальгаузена НАН України |
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Фауна и систематика Фауна и систематика |
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Фауна и систематика Фауна и систематика Balashov, I. Terrestrial Mollusks (Gastropoda) of the Slovechansko-Ovrutsky Ridge (Zhytomyr Region, Northern Ukraine) Вестник зоологии |
| description |
Thirty-five species of terrestrial mollusks were found in the Slovechansko-Ovrutsky ridge. Findings of Clausilia cruciata, Ruthenica filograna and Monachoides vicinus are especially interesting. Reproductive system of Morlina glabra is described. Problems of the conservation of terrestrial mollusks in the region are discussed. |
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Article |
| author |
Balashov, I. |
| author_facet |
Balashov, I. |
| author_sort |
Balashov, I. |
| title |
Terrestrial Mollusks (Gastropoda) of the Slovechansko-Ovrutsky Ridge (Zhytomyr Region, Northern Ukraine) |
| title_short |
Terrestrial Mollusks (Gastropoda) of the Slovechansko-Ovrutsky Ridge (Zhytomyr Region, Northern Ukraine) |
| title_full |
Terrestrial Mollusks (Gastropoda) of the Slovechansko-Ovrutsky Ridge (Zhytomyr Region, Northern Ukraine) |
| title_fullStr |
Terrestrial Mollusks (Gastropoda) of the Slovechansko-Ovrutsky Ridge (Zhytomyr Region, Northern Ukraine) |
| title_full_unstemmed |
Terrestrial Mollusks (Gastropoda) of the Slovechansko-Ovrutsky Ridge (Zhytomyr Region, Northern Ukraine) |
| title_sort |
terrestrial mollusks (gastropoda) of the slovechansko-ovrutsky ridge (zhytomyr region, northern ukraine) |
| publisher |
Інститут зоології ім. І.І. Шмальгаузена НАН України |
| publishDate |
2012 |
| topic_facet |
Фауна и систематика |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/109573 |
| citation_txt |
Terrestrial Mollusks (Gastropoda) of the Slovechansko-Ovrutsky Ridge (Zhytomyr Region, Northern Ukraine) / I. Balashov // Вестник зоологии. — 2012. — Т. 46, № 6. — С. 491–497. — Бібліогр.: 21 назв. — англ. |
| series |
Вестник зоологии |
| work_keys_str_mv |
AT balashovi terrestrialmollusksgastropodaoftheslovechanskoovrutskyridgezhytomyrregionnorthernukraine |
| first_indexed |
2025-07-07T23:20:31Z |
| last_indexed |
2025-07-07T23:20:31Z |
| _version_ |
1837032205089505280 |
| fulltext |
UDC 594.3(477)
TERRESTRIAL MOLLUSKS (GASTROPODA)
OF THE SLOVECHANSKO-OVRUTSKY RIDGE
(ZHYTOMYR REGION, NORTHERN UKRAINE)
I. Balashov
Schmalhausen Institute of Zoology, of the NAS of Ukraine,
B. Chmielnicky str., 15, Kyiv, 01601 Ukraine
E-mail: igor_balashov@ukr.net
Received 8 December 2011
Accepted 5 March 2012
Terrestrial Mollusks (Gastropoda) of the Slovechansko-Ovrutsky Ridge (Zhytomyr Region, Northern
Ukraine). Balashov I. – Thirty-five species of terrestrial mollusks were found in the Slovechansko-Ovrutsky
ridge. Findings of Clausilia cruciata, Ruthenica filograna and Monachoides vicinus are especially interest-
ing. Reproductive system of Morlina glabra is described. Problems of the conservation of terrestrial mol-
lusks in the region are discussed.
Ke y wo r d s: terrestrial mollusks, Gastropoda, conservation, Slovechansko-Ovrutsky ridge, Ukraine.
Íàçåìíûå ìîëëþñêè (Gastropoda) Ñëîâå÷àíñêî-Îâðó÷ñêîãî êðÿæà (Æèòîìèðñêàÿ îáëàñòü, ñåâåðíàÿ
Óêðàèíà). Áàëàø¸â È. – Íà òåððèòîðèè Ñëîâå÷àíñêî-Îâðó÷ñêîãî êðÿæà çàðåãèñòðèðîâàíû 35 âèäîâ
íàçåìíûõ ìîëëþñêîâ. Îñîáî èíòåðåñíû íàõîäêè òàêèõ âèäîâ êàê Clausilia cruciata, Ruthenica filo-
grana è Monachoides vicinus. Ïðèâåäåíî îïèñàíèå ïîëîâîé ñèñòåìû Morlina glabra. Îáñóæäàþòñÿ
ïðîáëåìû îõðàíû íàçåìíûõ ìîëëþñêîâ â ðåãèîíå.
Êëþ÷åâûå ñ ëîâ à: íàçåìíûå ìîëëþñêè, Gastropoda, îõðàíà, Ñëîâå÷àíñêî-Îâðó÷ñêèé êðÿæ,
Óêðàèíà.
Slovechansko-Ovrutsky ridge (further in text SOR) is a small upland on the Polesian Lowland in Ovruch
district of Zhytomyr region (Northern Ukraine) at 20 km from the border between Ukraine and Belarus. Its
area is about 490 km2 and extension is about 50 km. SOR is raised above surrounding lowland on more than
100 m, with minimum high about 200 m and maximum high 321 m (Smyk, 1964; Shelyag-Sosonko et al., 1987;
Khomyak, Didukh, 2005 et al.). It is the highest point in radius more than 150 km and highest point of the
Polesie. The surface of SOR is indented by the valleys and ravines, which provide diversity of the habitation
conditions. On the territory of SOR many interesting locations of non-typical for Polesie plants were found.
Particularly significant are the most north-eastern location of durmast (Quercus petraea) and especially the most
northern location of yellow azalea (Rhododendron luteum), which main range is located in Caucasus and Asia
Minor, more than 1000 km far from the SOR. Among the plants of SOR, both the most south locations of
some northern species (Carex pauciflora, Listera cordata et al.), and the most north-eastern locations of some
southern and western European species (durmast, yellow azalea, English ivy et al.) are known (Smyk, 1964;
Shelyag-Sosonko et al., 1987; Khomyak, Didukh, 2005) were mentioned.
The terrestrial mollusks on the SOR are poorly studied. In 1988 mollusks were collected on two nearby
plots in the basin of the Chervonka River by Dr. A. A. Baidashnikov. This material is partly described in two
articles dealing with the terrestrial mollusks of Ukrainian Polesie (Baidashnikov, 1992, 1996). New material
was collected on the SOR in 2011 by the author of this article. Any other collections of terrestrial mollusks
from the SOR are unknown.
Material and methods
During 10—12 October, 2011 about 800 specimens of 34 terrestrial mollusks’ species were collected on
the western part of SOR. Material collected by Dr. Baidashnikov on August 25, 1988 in the basin of the Chervonka
River, which includes about 200 specimens of 18 species, was also studied. All this material is kept in the Collection
of terrestrial mollusks of Schmalhausen Institute of Zoology (Kyiv). Main collection locations (fig. 1): 1 –
vicinities of Gorodec village, 23 and 24 squares of Gorodec forestry, Korobanica tract, hornbeam-durmast for-
Vestnik zoologii, 46(6): e-9—e-15, 2012
DOI 10.2478/v10058-012-0042-9
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est, accumulations of dead wood, collected only from the dead wood and alive trees (litter was not studied),
25.08.1988; 2 – vicinities of Usovo village, along the Lubenec River, birch-oak-pine forest, about 230 m,
51°20'20' 'N 28°10'15'' E, 10.10.2011; 3 – vicinities of Gorodec village, along the stream in the basin of the
Chervonka River, southward to Usovo-Gorodec road, hornbeam-alder-oak forest, about 270 m, 51°21'10'' N
28°12'45' 'E, 11.10.2011; 4 – vicinities of Gorodec village, large deep ravine with stream (basin of the
Slovechna River), hornbeam-alder-oak forest, about 260 m, 51°21'55'' N 28°16'20'' E, 12.10.2011.
Results and discussion
In total, 35 species of terrestrial mollusks are represented in the studied material
(table 1). Findings of such species as Clausilia cruciata (Studer, 1820), Ruthenica filo-
grana (Rossmässler, 1836) and Monachoides vicinus (Rossmässler, 1842) are especially
interesting. These species have not been previously reported in Zhytomyr region
(Baidashnikov, 1992, 1996; Balashov et al., 2007). In the case of C. cruciata, it is the
second record of this species in Ukraine outside Carpathians. The range of this species
is parted in two main pieces – Alpine-Carpathian and northern-central-European
(Scandinavia, Baltic countries, sporadic in Belarus and in north-western part of European
Russia) (Kerney et al., 1983; Sysoev, Schileyko, 2009). For Ukraine outside Carpathians
this species was mentioned by Adamovich (Adamowicz, 1939; Baidashnikov, 1992, 1996)
from Rivne region (Volyn, north-western Ukraine). However accuracy of the determi-
nation in this case is doubtful for some authors (Sverlova, Gural, 2005), and in Ukraine
this species is usually mentioned only from the Carpathians (Sysoev, Schileyko, 2009 et
al.). Consequently, this record could be considered as the first reliable record of this species
in Ukraine outside Carpathians. Besides, the nearest known population of C. cruciata in
Carpathians is at the distance of more than 400 km from the SOR. This record of this
species is also the most southern one on the East European Plain. I collected 14 speci-
mens of C. cruciata under bark of the old fallen alder trunks on the banks of two streams.
Most specimens were collected on the location N 3 and one empty shell was collected
on the location N 4 (fig. 1). The height of collected shells is 8. 6—10.3 mm, diameter –
2.2—2.5 mm, the shells are clearly and rarely ribbed (fig. 2).
e-10 I. Balashov
Fig. 1. Main collection locations: 1—4 – see “Material and methods”; dark-grey – settlements; light-grey –
forests; white – open plots; black lines – rivers.
Ðèñ. 1. Îñíîâíûå ïóíêòû ñáîðà ìàòåðèàëà. Óñëîâíûå îáîçíà÷åíèÿ: 1—4 – ñì. “Material and methods”;
òåìíî-ñåðûé – íàñåë¸ííûå ïóíêòû; ñâåòëî-ñåðûé – ëåñà; áåëûé – îòêðûòûå ó÷àñòêè; ÷¸ðíûå
ëèíèè – ðåêè.
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Snail R. filograna is a species rare in Ukraine; it was not previously reported from
the central Polesie (Baidashnikov, 1992, 1996; Balashov et al., 2007). However, finding
of this species on the SOR does not expand known range borders of this species. Single
records of R. filograna took place on the surrounding territories: in the western Polesie
(Baidashnikov, 1992, 1996), in the eastern part of Podolian Upland (Balashov,
Baidashnikov, 2012), in the forest-steppe zone in Middle Dnieper Area (Balashov,
Baidashnikov, 2010), in the south-western part of Middle Russian Upland (Balashov et
al., 2009) and in Belarus (Sysoev, Schileyko, 2009).
M. vicinus is a Carpathian subendemic, or, as it was characterized by Baidashnikov
(1996), a Carpatho-Podolian species. Most of its findings took place in the Carpathians
and in Podolian Upland (Kerney et al., 1983; Sysoev, Schileyko, 2009). On the Podolian
Upland this species is common up to its eastern extremity (Balashov, Baidashnikov, 2012),
however in the more eastern regions M. vicinus was not found (Balashov, Baidashnikov,
e-11Terrestrial Mollusks (Gastropoda) of the Slovechansko-Ovrutsky Ridge...
Ta b l e 1. Terrestrial mollusks of the studied locations on the Slovechansko-Ovrutsky ridge
Ò à á ëèö à 1. Íàçåìíûå ìîëëþñêè èçó÷åííûõ ó÷àñòêîâ Ñëîâå÷àíñêî-Îâðó÷ñêîãî êðÿæà
No t e: “Location N 1—4” – see “Material and methods” and fig. 1; “+” – species is present in this
location; “++” – species is numerous in this location; * – on the location N 1 mollusks were collected only
from the dead wood and alive trees, litter was not studied.
Species Location N 1* Location N 2 Location N 3 Location N 4
Platyla polita (Hartmann, 1840) - - + +
Carychium minimum Müller, 1774 - - + +
Carychium tridentatum (Risso, 1826) - - + ++
Cochlicopa lubricella (Porro, 1838) - + + +
Cochlicopa lubrica (Müller, 1774) - - + +
Cochlicopa nitens (Gallenstein, 1848) - - + -
Vertigo pusilla Müller, 1774 - + + +
Vertigo substriata (Jeffreys, 1833) - + + +
Columella edentula (Draparnaud, 1805) - - + +
Acanthinula aculeata (Müller, 1774) + + ++ ++
Ruthenica filograna (Rossmässler, 1836) - - - +
Cochlodina laminata (Montagu, 1803) ++ + ++ ++
Cochlodina orthostoma (Menke, 1830) ++ - + +
Laciniaria plicata (Draparnaud, 1801) ++ + ++ ++
Bulgarica cana (Held, 1836) + - - -
Clausilia cruciata (Studer, 1820) - - + +
Punctum pygmaeum (Draparnaud, 1801) - + + ++
Discus ruderatus (Hartmann, 1821) ++ ++ ++ ++
Vitrea contracta (Westerlund, 1871) + - - +
Aegopinella pura (Alder, 1830) + + + ++
Aegopinella minor (Stabile, 1864) + - + +
Perpolita hammonis (Strøm, 1765) + ++ ++ +
Perpolita petronella (Pfeiffer, 1853) + - + +
Morlina glabra (Rossmässler, 1836) + - - +
Zonitoides nitidus (Müller, 1774) ++ - + ++
Euconulus fulvus (Müller, 1774) ++ ++ ++ ++
Limax cinereoniger Wolf, 1803 + + + +
Lehmannia marginata (Müller, 1774) + - + -
Malacolimax tenellus (Müller, 1774) + + + +
Deroceras laeve (Müller, 1774) - + - +
Perforatella bidentata (Gmelin, 1791) - - - +
Monachoides vicinus (Rossmässler, 1842) - + - +
Arion subfuscus (Draparnaud, 1805) + + + +
Succinella oblonga (Draparnaud, 1801) - + - +
Succinea putris (Linnaeus, 1758) - + - +
Number of species (35 in total) 18 18 26 32
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2010; Balashov, Gural-Sverlova, 2012). In Polesie this species was found only in the Volyn
(Baidashnikov, 1992, 1996; Balashov, Gural-Sverlova, 2012) and was not found in
Belarus (Sysoev, Schileyko, 2009). Consequently, record of this species on the SOR essen-
tially extends the known range of this species to the north-east.
Presence of the Morlina glabra (Rossmässler, 1836) on the SOR is also interesting.
This species was mentioned for this territory by Baidashnikov (1992, 1996). Similarly to
M. vicinus, this species in Ukraine is known from Carpathians (Sysoev, Schileyko, 2009;
Balashov, Gural-Sverlova, 2012), Podolian Upland (Balashov, Baidashnikov, 2012;
Balashov, Gural-Sverlova, 2012), Volyn (Baidashnikov, 1992, 1996; Balashov, Gural-
Sverlova, 2012) and, moreover, from one location in the forest-steppe zone in Middle
Dnieper Area (Balashov, Baidashnikov, 2010). In Belarus, this species is also absent
(Sysoev, Schileyko, 2009). Consequently, as well as M. vicinus, M. glabra on the SOR
lives on the north-eastern border of its range. It is notable that the structure of the repro-
ductive system of M. glabra from the eastern plain part of its range is not described in
literature. At the same time this species belongs to the group, which taxonomy is based
mainly on the structure of the reproductive system. It seems interesting, therefore, to adduce
illustration of this species reproductive system (fig. 3). Generally reproductive system is
found to be similar to that of the specimens from Poland (Riedel, 1957) and Ivano-
Frankivsk region of Ukraine (Schileyko, 2003): proper penis is moderately long, extend-
ed in the middle, not curved; flagellum is little shorter than penis, strongly curved; epiphal-
lus is long, extended in the middle, curved; vagina shorter and little more narrowed than
penis; perivaginal gland is little wider than vagina; spermatheca is moderately long, its
reservoir is poorly demarcated. However, specimen from Ivano-Frankivsk region has much
longer vagina (Schileyko, 2003). The largest shell of M. glabra collected on the SOR has
diameter 12.5 mm.
e-12 I. Balashov
Fig. 2. Shell of Clausilia cruciata from the location N 3.
Ðèñ. 2. Ðàêîâèíà Clausilia cruciata èç ìåñòîíàõîæäåíèÿ ¹ 3.
Fig. 3. Reproductive system of Morlina glabra from the location N 4: 1 – flagellum; 2 – penis; 3 – epiphal-
lus; 4 – spermoviduct; 5 – vagina; 6 – perivaginal gland; 7 – spermathecal shaft; 8 – reservoir of spermath-
eca; 9 – free oviduct.
Ðèñ. 3. Ïîëîâàÿ ñèñòåìà Morlina glabra èç ìåñòîíàõîæäåíèÿ ¹ 4: 1 – ôëàãåëëóì; 2 – ïåíèñ; 3 – ýïè-
ôàëëóñ; 4 – ñåìÿïðîâîä; 5 – âàãèíà; 6 – îêîëîâàãèíàëüíàÿ æåëåçà; 7 – ñåìÿïðèåìíèê; 8 – ðåçåð-
âóàð ñåìÿïðèåìíèêà; 9 – ÿéöåâîä.
2 3
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The richest species composition of terrestrial mollusks is registered along the stream
in deep ravine, location N 4 (table 1). It is notable that quite similar species composi-
tion was registered in the comparable ravines of Kaniv Upland in the Middle Dnieper
Area (Balashov, 2006; Balashov, Lukashov, 2007; Balashov, Baidashnikov, 2010), on the
distance of more than 300 km from the SOR. Species composition of terrestrial mollusks
in these regions as a whole is essentially different (Balashov et al., 2007). It is particu-
larly significant that both in ravines of Kaniv Upland and in ravines of SOR such rare
species as Platyla polita (Hartmann, 1840), R. filograna, Bulgarica cana (Held, 1836), Vitrea
contracta (Westerlund, 1871) and M. glabra are present. Furthermore, Aegopinella pura
(Alder, 1830) and Malacolimax tenellus (Müller, 1774), quite common in Polesie, are
known in the forest-steppe Dnieper Area only from few records including ravines of Kaniv
Upland. However, in Kaniv ravines such species as C. cruciata, M. vicinus and Vertigo
substriata (Jeffreys, 1833) are absent. Species Cochlodina orthostoma (Menke, 1830) and
Perpolita petronella (Pfeiffer, 1853), which are very rare in the Dnieper forest-steppe
(Balashov, 2006; Balashov, Lukashov, 2007; Balashov, Baidashnikov, 2010) are not
found in the Kaniv ravines too. At the same time, on the territory of SOR (and Polesie
in whole) Sphyradium doliolum (Bruguiere, 1792) is not registered, but it inhabits Kaniv
ravines on the north-eastern border of its range (Balashov, Baidashnikov, 2010).
Moreover, from species registered in Kaniv ravines, several widespread species are also
absent in SOR. There is no doubt that such peculiarity of species compositions in
ravines is not a coincidence. The specific richness of terrestrial mollusks in the ravines
was mentioned in many territories. It is specified mainly by the specific microclimate with
increased humidity and smooth temperature drop, and moreover by the difficulty of human
access (Balashov, 2006; Balashov, Lukashov, 2007; Balashov et al., 2007; Balashov,
Baidashnikov, 2010, 2012 et al.).
It should be taken into consideration that species composition of terrestrial mollusks
in 4 described locations (table 1) cannot be characterized as a typical for most part of
SOR. The most part of analyzed area is covered by the secondary anthropogenic pine and
birch forests composing 87 % of the SOR forests (Khomyak, Didukh, 2005). Species com-
position of terrestrial mollusks in such forests is poor and represented mostly by the
Euconulus fulvus (Müller, 1774), Perpolita hammonis (Strøm, 1765), M. tenellus and Arion
subfuscus (Draparnaud, 1805) only. Studied plots of forest with predominance of oak,
durmast, hornbeam and alder, are remains of natural forests, which survive mostly on the
banks of streams and rivers. Species composition registered in these forests (table 1) prob-
ably was typical for the most part of SOR, or, at least, its western part. But reduction of
the oak, durmast, hornbeam and alder, and also realization of forestry activity in
remained forests, entails extinction of these mollusk species on the most part of SOR.
Primarily in the western part of the SOR share of the oak forests was at least 30 %, but
now it is 2.5 % (Khomyak, Didukh, 2005). Even if forests are not destroyed totally, san-
itary felling may have extremely destructive influence on mollusks, especially such rare
species as C. cruciata, C. orthostoma, B. cana and M. glabra. Such forestry actions
involve in forests minimization of dead wood capacity, which is main environment for
these species of mollusks. On the plots where sanitary felling is taking place, above men-
tioned species do not inhabit. Locations N 3 and partly N 1 are positioned on the ter-
ritory of the small forest reserve (Rus. «çàêàçíèê») of local importance “Slovechanskij
Krjazh” (“Slovechanskij Ridge”), however sanitary felling is probably not forbidden there.
It is very concerned that in the many of Ukrainian reserves, national nature parks and
other protected areas, the sanitary felling officially and legally takes place. According to
the legislation of Ukraine, on the protected territories the sanitary felling is regulated by
the same standard acts as on the territories not protected. At that in the period of 2003—2009
share of the sanitary felling in all procured wood in Ukraine amounts 56 % (60.5 mil-
lions m3) (State committee…, 2010). On the protected territories sanitary felling is for-
e-13Terrestrial Mollusks (Gastropoda) of the Slovechansko-Ovrutsky Ridge...
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bidden only in the case if it is clearly stipulated in the policy of particular protected area.
However in the overwhelming majority of cases it is not stipulated. As a result protect-
ed forests in Ukraine have no sufficient significance in the conservation of forest biodi-
versity in Ukraine at whole, and first of all of organisms inhabiting dead wood, includ-
ing mollusks.
It was proposed to create a branch of the Polisskiy Nature Reserve between the
Kovanka, Usovo and Gorodec villages on the area of 120 km2 (Shelyag-Sosonko et al.,
1987). In my opinion, joining these territories to the Polisskiy Reserve is very expedi-
ent. Moreover, the upper basin of the Slovechna River and of some its confluents
(between Gorodec and Antonovychy villages) should also be joined to the Polisskiy Reserve.
In the locations N 1, 3 and 4 (fig. 1) and in other locations of durmast, oak, hornbeam
and alder forest, it is necessary to create protected cores, where all forestry activity should
be forbidden. It is especially necessary for the conservation of relict populations of C. cru-
ciata, whose condition in the plain part of Ukraine is corresponded to the IUCN cate-
gory Critically Endangered by the criterions B 1 a, b and B 2 a, b (IUCN…, 2001;
Guidelines…, 2003). It is necessary to include this species in the red lists of Zhytomyr
and Rivne regions. Furthermore, among the species of the SOR, such snails as P. poli-
ta, R. filograna, C. orthostoma, B. cana, V. contracta, M. glabra and M. vicinus are also
recommended to be included in the Red List of Zhytomyr region.
It should be taken into consideration that terrestrial mollusk species composition of
SOR is still studied not well enough. It is very possible that other rare species of terres-
trial mollusks will be found there, including those not typical for the Polesie.
Adamowicz J. Materialy do fauny mieczakow (Mollusca) Polesia // Fragmenta Faunistica Musei Zoologici
Polonici. – 1939. – 4, 3. – P. 13—89.
Baidashnikov A. A. Terrestrial mollusk fauna of the Ukrainian Polesie area. Communication 1. Species com-
position and connection with vegetative cover // Vestnik zoologii. – 1992. – N 4. – P. 13—19. – Russian :
Áàéäàøíèêîâ À. À. Íàçåìíàÿ ìàëàêîôàóíà Óêðàèíñêîãî Ïîëåñüÿ. Ñîîáùåíèå 1. Âèäîâîé ñîñòàâ
è ñâÿçü ìîëëþñêîâ ñ ðàñòèòåëüíûì ïîêðîâîì.
Baidashnikov A. A. Terrestrial mollusk fauna of the Ukrainian Polesie area. Communication 2. Origins of the
recent molluskan assemblages // Vestnik zoologii. – 1996. – N 3. – P. 3—12. Russian : Áàéäàøíèêîâ À. À.
Íàçåìíàÿ ìàëàêîôàóíà Óêðàèíñêîãî Ïîëåñüÿ. Ñîîáùåíèå 2. Ôîðìèðîâàíèå ñîâðåìåííûõ ìàëà-
êîêîìïëåêñîâ.
Balashov I. A. The role of the forest ravines in the distribution of terrestrial molluscs on the Kaniv Upland //
Ecologo-funkcionalni ta faunistychni aspekty doslidjennya moluskiv, yih rol u bioindykazii stanu navkol-
ishnogo seredovysha. – Zhytomyr : Vyd. Zhyt. Univer., 2006. – 2. – P. 19—22. – Russian :
Áàëàø¸â È. À. Çíà÷åíèå ëåñíûõ îâðàãîâ â ðàñïðîñòðàíåíèè íàçåìíûõ ìîëëþñêîâ (Mollusca:
Gastropoda) Êàíåâñêîé âîçâûøåííîñòè.
Balashov I. A., Baidashnikov A. A. Terrestrial molluscs (Gastropoda) of the forest-steppe in the Dnieper Area
and their confinement to different phytocenoses // Vestnik zoologii – 2010. – 44, N 4. – P. 309—316. –
Russian : Áàëàø¸â È. À., Áàéäàøíèêîâ À. À. Íàçåìíûå ìîëëþñêè (Gastropoda) ëåñîñòåïíîãî
Ïðèäíåïðîâüÿ è èõ ôèòîöåíîòè÷åñêàÿ ïðèóðî÷åííîñòü.
Balashov I. A., Baidashnikov A. A. Terrestrial mollusks (Gastropoda) of the Vinnytsia oblast and their bioto-
pical preferences // Vestnik zoologii – 2012. – 46, N 1. – P. 19—28. – Russian : Áàëàø¸â È. À.,
Áàéäàøíèêîâ À. À. Íàçåìíûå ìîëëþñêè (Gastropoda) Âèííèöêîé îáëàñòè è èõ áèîòîïè÷åñêàÿ
ïðèóðî÷åííîñòü.
Balashov I. A., Biatov A. P., Vasyliuk A. V. Species composition and confinement to different phytocenoses of
terrestrial mollusks (Gastropoda, Pulmonata) in the “Homilshanski Lisy” National Nature Park (Ukraine,
Kharkiv region) // Vestnik zoologii – 2009. – 43, N 4. – P. 355—360. – Russian : Áàëàø¸â È. À.,
Áèàòîâ À. Ï., Âàñèëþê À. Â. Âèäîâîé ñîñòàâ è ôèòîöåíîòè÷åñêàÿ ïðèóðî÷åííîñòü íàçåìíûõ ìîë-
ëþñêîâ (Gastropoda, Pulmonata) Íàöèîíàëüíîãî ïðèðîäíîãî ïàðêà «Ãîìîëüøàíñêèå ëåñà»
(Óêðàèíà, Õàðüêîâñêàÿ îáë.).
Balashov I., Gural-Sverlova N. An annotated checklist of the terrestrial molluscs of Ukraine // Journal of Con-
chology. – 2012. – 41, N 1. – P. 91—109.
Balashov I. A., Lukashov D. V. Terrestrial molluscs of the Kaniv nature reserve // Zapovidna sprava v Ukraini. –
2007. – 13 (1—2). – P. 75—79. – Ukrainian : Áàëàøîâ ². Î. , Ëóêàøîâ Ä. Â. Íàçåìí³ ìîëþñêè
Êàí³âñüêîãî ïðèðîäíîãî çàïîâ³äíèêà // Çàïîâ³äíà ñïðàâà â Óêðà¿í³.
Balashov I. A., Lukashov D. V., Sverlova N. V. Terrestrial molluscs of the Middle Dnieper Area. Guide. – Kyiv :
Phytosociocentre, 2007. – 132 p. – Ukrainian : Áàëàøîâ ². Î., Ëóêàøîâ Ä. Â., Ñâåðëîâà Í. Â.
Íàçåìí³ ìîëþñêè Ñåðåäíüîãî Ïðèäí³ïðîâ’ÿ.
e-14 I. Balashov
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Khomyak I. V. , Didukh Ya. P. The particularities of the accommodation woodland structure of the Slovechansko-
Ovruchsky ridge // Ukrainian Phytosociological Collection. – Kyiv, 2005. – Is. C, vol. 23. –
P. 91—106. – Ukrainian : Õîì’ÿê ². Â., ijäóõ ß. Ï. Òåðèòîð³àëüíèé ðîçïîä³ë ë³ñîâèõ åêîñèñòåì
Ñëîâå÷àíñüêî-Îâðóöüêîãî êðÿæó // Óêðà¿íñüêèé ô³òîöåíîëîã³÷íèé çá³ðíèê.
IUCN Red List Categories and Criteria: Version 3. 1. – IUCN, 2001. – 30 p.
Guidelines for Application of IUCN Red List Criteria at Regional Levels. – IUCN, 2003. – 26 p.
Kerney M. P., Cameron R. A. D., Jungbluth J. H. Die Landschnecken Nord- und Mitteleuropas. – Hamburg ;
Berlin : Parey, 1983. – 384 S.
Riedel A. Revision der Zonitiden Polens (Gastropoda) // Annales Zoologici. – 1957. – 16, N 23. – S. 361—465.
Schileyko A. A. Treatise on Recent Terrestrial Pulmonate molluscs // Ruthenica.– 2003. – Suppl. 2, p. 10. –
P. 1309—1465.
Shelyag-Sosonko Yu. R., Stoyko S. M., Didukh Ya. P. et al. Perspective system of the reserved objects of Ukraine. –
Kyiv : Naukova dumka, 1987. – 292 p. – Russian : Øåëÿã-Ñîñîíêî Þ. Ð., Ñòîéêî Ñ. Ì.,
Äèäóõ ß. Ï. è äð. Ïåðñïåêòèâíàÿ ñåòü çàïîâåäíûõ îáúåêòîâ Óêðàèíû.
Smyk G. K. Slovechansko-Ovruchskij ridge // Pryroda. – 1964. – N 12. – P. 63—64. – Russian : Ñìûê Ã. Ê.
Ñëîâå÷àíñêî-Îâðó÷ñêèé êðÿæ.
State committee of the forestry of Ukraine. Forestry of Ukraine. – Kyiv : Vydavnychiy dim “ECO-inform”,
2010. – 64 p. – Ukrainian : Äåðæàâíèé êîì³òåò ë³ñîâîãî ãîñïîäàðñòâà Óêðà¿íè. ˳ñîâå ãîñïîäàðñò-
âî Óêðà¿íè.
Sysoev A., Schileyko A. Land snails and slugs of Russia and adjacent countries. Pensoft Series Faunistica 87.
Sofia ; Moscow : Pensoft Publishers, 2009. – 455 p.
Sverlova N. V., Gural R. I. Guide to terrestrial molluscs of the western Ukraine. – Lviv, 2005. – 218 p. –
Ukrainian : Ñâåðëîâà Í. Â., Ãóðàëü Ð. ². Âèçíà÷íèê íàçåìíèõ ìîëþñê³â çàõîäó Óêðà¿íè.
e-15Terrestrial Mollusks (Gastropoda) of the Slovechansko-Ovrutsky Ridge...
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