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Acta Zoologica Lituanica (2011) Volume 21 Number 4
BALALAIKINS Maksims. On Latvian Entiminae (Coleoptera: Curculionidae): 2. Tribes Trachyphloeini Lacordaire, 1863 and Sciaphilini Sharp, 1891. Acta Zoologica Lituanica 21 (4): 253-262. Full text
Abstract. New faunal data on eight species of the tribes Trachyphloeini and Sciaphilini are presented. A total of 471 specimens of these tribes were reviewed. Bibliographical information on these groups in Latvia is summarised for the first time. The first records of Trachyphloeus heymesi Hubenthal, 1934 and Barypeithes mollicomus (Ahrens, 1812), in the Latvian fauna are reported. One species, Trachyphloeus spinimanus Germar, 1824, is excluded from the list of Latvian Coleoptera. The annotated list including 12 species and the illustrated key of Latvian Trachyphloeini and Sciaphilini are given.
Key words: Trachyphloeini, Sciaphilini Latvia, fauna, bibliography, new records, identification
BALALAIKINS Maksims, BUKEJS Andris. Otiorhynchus smreczynskii (Coleoptera: Curculionidae) – a new to Estonia and Lithuania weevil species with notes on its occurrence and bionomy in the Eastern Baltic region. Acta Zoologica Lituanica 21 (4): 263-267. Full text
Abstract. Information on the distribution and bionomy of Otiorhynchus smreczynskii Cmoluch, 1968 (Coleoptera: Curculionidae) in the Eastern Baltic region is presented. This weevil species is reported from Lithuania and Estonia for the first time. A large population of the species was discovered in Daugavpils (Latvia), where it was observed on Syringa vulgaris, S. villosa, Ligustrum vulgare, Ribes alpinum, Spiraea chamaedrifolia, Cydonia oblonga and Aronia melanocarpa. Pictures of O. smreczynskii aedeagus are presented for the first time. Illustrations of typical leaf-edge-cuts made by this weevil are given.
Key words: Coleoptera, Curculionidae, Otiorhynchus smreczynskii, bionomy, new records, Baltic region
SRINIVASULU Bhargavi, SRINIVASULUChelmala, KAUR Harpreet, SRINIVASULU Aditya. A new distribution record of the Japanese Pipistrelle (Pipistrellus abramus (Temminck, 1840); Mammalia, Chiroptera) in India. Acta Zoologica Lituanica 21 (4): 268-272. Full text
Abstract. A new distribution record of the Japanese Pipistrelle (Pipistrellus abramus (Temminck, 1840); Chiroptera, Mammalia) is reported basing on fresh material collected from Hyderabad, India. Identification is confirmed based on morphology and a fragment of mtDNA cytochrome b (492 bp). The present record extends the range of the Japanese Pipistrelle further south in India, where it was known only from two historical records.
Key words: Pipistrellus abramus, Chiroptera, range extension, distribution, India
STARKEVIČ Pavel, PODĖNAS Sigitas. New faunistic records of Tipula (Vestiplex) crane flies (Diptera, Tipulidae) from China and Myanmar. Acta Zoologica Lituanica 21 (4): 273-278. Full text
Abstract. Tipula (Vestiplex) adungensis Alexander, 1963 and Tipula (Vestiplex) eurydice Alexander, 1961 are reported as new to the fauna of China, and Tipula (Vestiplex) distifurca Alexander, 1942 and Tipula (Vestiplex) himalayensis Brunetti, 1911 as new to Myanmar. The data are based on material collected in 1931 and preserved in the Natural History Museum, London, Great Britain. The current article presents information concerning finding localities, habitats, numbers of collected specimens and general distribution. The female of Tipula (Vestiplex) eurydice Alexander, 1961 is described for the first time together with original photographs of the main diagnostic features.
Key words: species, distribution, type material, hypopygium, ovipositor
VAISFELD Mikhail, GUBAR Juliy, PUSHKARYOV Sergei. Review of the lynx situation in the Pskov oblast (Russia) at the beginning of the 21st century. Acta Zoologica Lituanica 21 (4): 279-284. Full text
Abstract. The paper discusses historical and contemporary aspects of lynx (Lynx lynx Linnaeus, 1758) ecology and its distribution in the Pskov oblast. Numbers and density (ind./100 sq. km of hunting grounds) of the predator in counties varied from 0 (0.0) to 13 (0.53) in 2010 and from 0 (0.0) to 22 (1.09) in 2011. Lynx density is inversely proportional to that of the human population. The species development trend in the oblast is given.
Key words: lynx, Pskov oblast, Russia, counties, number, density, dynamics, harvest, poaching, hunting
VAISFELD Mikhail, GUBAR Juliy, PUSHKARYOV Sergei. Review of the brown bear situation in the Pskov oblast (Russia) at the beginning of the 21st century. Acta Zoologica Lituanica 21 (4): 285-292. Full text
Abstract. The paper describes the current state of the brown bear (Ursus arctos Linnaeus, 1758) population, its present and past distribution in the oblast, and the state of its habitats. In 2010–2011 numbers and density of the brown bear per the county varied from southwest to northeast following an upward trend (from 0 to 122 ind. and from 0.0 to 4.85 ind./100 square km, respectively). In general, these parameters are directly proportional to the forest area and inversely proportional to the density of the human population.
Key words: brown bear, Pskov oblast, Russia, numbers, density, dynamics, hunting, harvest, poaching
JASIULIONIS Marius, ČEPUKIENĖ Aušra, BALČIAUSKAS Linas. Small mammal community changes during succession of the planted forest. Acta Zoologica Lituanica 21 (4): 293-300. Full text
Abstract. Small mammal communities were investigated in three stages of meadow-forest succession (natural meadow, <10 years old forest plantation, and 15 years old spruce–birch forest stand) in the Pakruojis forest, north Lithuania, in 2007–2010. A total of 11 small mammal species were registered: nine in the natural meadow and in the forest plantation, and six in the forest stand. We found that under gradual change of the natural meadow to the young forest and later to the mixed forest stand, the diversity of the small mammal community decreased. Typical open habitat species were still present in the sapling stage, but already lost in the forest stand. The growing relative abundance of small mammals was due to the increased numbers of Myodes glareolus instead of Microtus voles.
Key words: small mammals, meadow-forest succession
ROY Barnali, NATH Susanta. Some haematological investigations on Oreochromis niloticus (Trewavas) following exposure to Thiamethoxam. Acta Zoologica Lituanica 21 (4): 301-305. Full text
Abstract. The effect of sublethal concentrations of Thiamethoxam pesticides on a freshwater fish, Oreochromis niloticus (Trewavas), has been studied. Evaluation of haematological parameters such as haemoglobin, red blood cell count and leucocyte count showed a significant relation with the doses of Thiamethoxam used in the experiment. The present study also revealed that this insecticide caused haematological disturbance, which might lead to impairment of fish ability to combat diseases and ultimately reduce the chances of survival.
Key words: Thiamethoxam, haematological parameters, O. niloticus
KURHINEN Juri, KULEBYAKINA Elena, ZADIRAKA Evgeniy, MAMONTOV Viktor, MURAVSKAYA Evgeniya, HANSKI K. Ilpo. Distribution of the Siberian flying squirrel (Pteromys volans L.) in taiga isthmuses between Baltic and White Sea regions. Acta Zoologica Lituanica 21 (4): 306-310. Full text
Abstract. We focused our attention on three narrow isthmuses between the White and the Baltic Seas, which form important connections for the elements of northern taiga ecosystems, such as the Siberian flying squirrel. The method that we employed is based on the search of flying squirrel’s excrements on randomly selected 9 ha plots (more than 11700 plots studied in Russia and in Finland). Relative abundances of the flying squirrel in Russian Karelia and the Karelian Isthmus seem to be slightly higher than in Finland. The border of the flying squirrel’s range in the North-West could be delineated from the national park Kalevalski, across the Segezha region to the southern part of the White Sea, and further to the east. We suppose that the connection between flying squirrel populations of Scandinavia and Russia is mainly implemented through a narrow ‘middle-taiga corridor’, i.e. the isthmus between Ladoga and Onega Lakes, and only partly by the isthmus between Lake Onega and the White Sea.
Key words: Siberian flying squirrel, North-West Russia, taiga, corridor