| Issue № 1 |
Original research |
pdf-version |
On the study of the equal-toothed shrew (Sorex isodon Turov) in the north-western periphery of its range
| Ivanter Ernest | DSc, Corresponding Member, RAS, Petrozavodsk state university, Petrozavodsk, Lenin st., 33, ivanter@petrsu.ru |
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Keywords: area number depression shedding nutrition fertility population dynamics reproduction environmental and population factors |
Summary: The article is based on long-term (1958–2017) expedition and stationary research in the Kivach, Kostomuksha and Lapland nature reserves and Karelian field stations – Priladozhsky, Kaskesnavoloksky and Gomselsky covering a vast part of taiga of the North-West of Russia. The article analyzes the population and ecological features of the equal -toothed shrew (Sorex isodon Turov) associated with its habitat near the North- Western borders of its range. It was found that in these conditions, the species was characterized by a generally low level of abundance compared to the optimal for the range (an average, 0.02 per 100 trap days and 0.1 per 10 trench days), distinct transition to stenotopy and obvious fixation on elements of the anthropogenic landscape. It is also characterized by the peculiarity of the territorial structure, the shift of reproduction to a later date and its general extension until mid –September. During the reproduction season, wintering adult females bring two litters: the first – in late May-early June, the second – in July. The litter size ranges from 2 to 11 per adult female (an average, 7.7 + 0.3). The share of mature and offspring-bearing profitable animals in general is small (up to 5-8 %) and varies by year depending on the state of the population and weather conditions. © Petrozavodsk State University |
Published on: 12 March 2020 | |
References
Hanski I. Food consumption, assimilation and metabolic rate in six species of shrews (Sorex and Neomys), Ann. Zool. Fennici. 1984. Vol. 21. P. 157–165.
Bobrecov A. V. Neyfel'dt N. D. Sokol'skiy L. M. Mammals of the Pechora-Ilychsky Reserve. Syktyvkar: Komi knizhn. izd-vo, 2004. 464 p.
Bol'shakov V. N. Vasil'ev A. G. Sharova L. P. Fauna and population ecology of Ural shrews (Mammalia. Soricidae). Ekaterinburg, 1996. 268 c.
Bromley G. F. Kostenko V. Ya. Nikolaev I. P. Mammals of the Zeya Nature Reserve. Vladivostok: DVNC AN SSSR, 1984. 139 p.
Dokuchaev N. E. Ecology of shrews of North-East Asia. M.: Nauka, 1990. 160 p.
Dokuchaev N. E. Nutrition of shrew shrews (Soricidae) and assessment of their role in mountain taiga ecosystems of North-Eastern Siberia, Ekologiya mlekopitayuschih Severo-Vostochnoy Sibiri. M.: Nauka, 1981. P. 3–22.
Dokuchaev N. E. Structure and producing capacity of shrew shrew communities of (Insectivore, Soricidae) of Chukotka, Zoologicheskiy zhurnal. 1994. T. 73 (9). P. 114–123.
Dolgov A. A. Shrews of the Old World. M.: Izd-vo MGU, 1985. 219 p.
Dolgov V. A. Chabovskiy V. I. Shilova S. A. Efron K. M. Some issues of shrew ecology and their significance in the foci of tick-borne encephalitis, Byulleten' Moskovskogo obschestva ispytateley prirody. Otd. biol. 1968. T. 73. Vyp. 6. P. 17–28.
Hanski I., Kaikusalo A. Distribution and habitat selection of shrews in Finlkand, Ann. Zool. Fennici. 1989. Vol. 26. No 4. P. 339–348.
Ivanter E. V. Ivanter T. V. Lobkova M. P. Sorex L. About nutrition of shrew shrews (Sorex L.) of Karelia, Trudy gosudarstvennogo zapovednika «Kivach». Petrozavodsk, 1973. Vyp. 2. P. 154–169.
Ivanter E. V. Ivanter T. V. Tumanov I. L. Adaptive features of small mammals. L.: Nauka, 1985. 318 p.
Ivanter E. V. Ivanter T. V. To the study of an equal-toothed shrew (Sorex isodon Turov, 1924), Fauna i ekologiya nazemnyh pozvonochnyh. Petrozavodsk, 1988. P. 88–112.
Ivanter E. V. Makarov A. M. Territorial ecology of shrew shrews (Insectivora, Sorex). Petrozavodsk: Izd-vo Petrozavod. gop. un-ta, 2001. 272 p.
Ivanter E. V. Essays on the population ecology of small mammals on the northern periphery of the range. M.: Tovarischestvo nauchnyh izdaniy KMK, 2018. 770 p.
Ivanter E. V. Population ecology of small mammals of the taiga of the North-West of the USSR. L.: Nauka, 1975. 246 p.
Karaseva E. V. Telicyna A. Yu. Zhigal'skiy O. A. Methods of studying rodents in the field. M.: Iz-vo LKI, 2008. 416 p.
Kozlovskiy A. I. Orlov V. N. Karyological confirmation of the species independence of the equine shrew Sorex isodon Turov (Insectivora, Soricidae), Zoologicheskiy zhurnal. 1971. T. 50. Vyp. 7. P. 1056–1061.
Kupriyanova I. F. Anufriev V. M. Shrew settlement in natural and anthropogenic habitats of the middle taiga of the Komi Autonomous Soviet Socialist Republic, I Vsesoyuznoe soveschanie po biologii nasekomoyadnyh mlekopitayuschih. M., 1992. P. 89–91.
Kupriyanova I. F. Biotopic groupings of small mammals and the dynamics of their numerical relationships in the south of Arkhangelsk region, Fauna i ekologiya pozvonochnyh zhivotnyh. M.: Nauka, 1978. P. 114–130.
Kupriyanova I. F. Fam. Soricidae – shrew, Fauna evropeyskogo Severo-Vostoka Rossii. Mlekopitayuschie. SPb.: Nauka, 1994. T. 2. Ch. 1. P. 11–67.
Luk'yanova I. V. Distribution of shrews (Soricidae) in the southern taiga and subtaiga forests of Ob region, Sistematika, fauna, zoogeografiya mlekopitayuschih i ih parazitov. Novosibirsk, 1975. P. 70–76.
Luk'yanova I. V. Features of the distribution of an equal-toothed shrew (Sorex isodon Turov) in Western and Central Siberia, I Vsesoyuznoe soveschanie po biologii nasekomoyadnyh mlekopitayuschih. M., 1992. P. 103–105.
Luk'yanova I. V. Plant feed in the diet of shrews (Soricidae), Teriologiya. T. 2. Novosibirsk: Nauka, 1974. P. 281–283.
Lyamkin V. F. Puzanov V. M. Malyshev Yu. S. Some features of shrew breeding (genus Sorex) in Northern Transbaikalia, Fauna i ekologiya mlekopitayuschih Yakutii. Yakutsk: Izd. YaF SO AN SSSR, 1985. P. 73–84.
Makarov A. M. K territorial'nomu povedeniyu ravnozuboy burozubki (Sorex isodon Turov) [To the territorial behavior of the equal-toothed shrew (Sorex isodon Turov), Aktual'nye problemy biologii i racional'noe prirodopol'zovanie: Tez. dokl. molodyh uchenyh. Petrozavodsk, 1990. P. 62–64.
Moraleva N. V. Attitude to the territory of shrew shrews of the Yenisei taiga (according to individual marking), Zhivotnyy mir Eniseyskoy taygi i lesotundry i prirodnaya zonal'nost'. M., 1983. P. 215–230.
Moraleva N. V. On the problem of interspecific relations of close species of shrew shrews (Insectivora. Sorex), Fauna i ekologiya ptic i mlekopitayuschih Sredney Sibiri. M.: Nauka, 1987. P. 213–228.
Nesterenko V. A. Insectivores of southern Far East and their communities. Vladivostok: Dal'nauka, 1999. 173 p.
Novikov G. A. Field studies of the ecology of terrestrial vertebrates. L.: Sov. nauka, 1953. 602 p.
Ohotina M. V. Morphological and ecological features of various species of shrews (Sorex, Insectivora), determining the possibility of their joint existence, Fauna i ekologiya nazemnyh pozonochnyh yuga Dal'nego Vostoka SSSR: Tr. biologo-pochvennogo in-ta. Vladivostok, 1974. T. 17. P. 42–57.
Popov M. V. Medium, small, equal-toothed shrews, Mlekopitayuschie Yakutii. M.: Nauka, 1971. P. 57–71.
Puchkovskiy S. V. Biotopic features of body weight and some internal organs of shrews (Sorex, Soricidae, Insectivora), Nauchnye doklady vysshey shkoly. Ser. biol. nauki. 1969. No. 9. P. 43–48.
Puchkovskiy S. V. Experience of a comparative study of representatives of two survival strategies: Avtoref. dip. ... d-ra biol. nauk. Petrozavodsk, 2000. 40 p.
Puchkovskiy S. V. To the question of the patterns of biotopic distribution of shrews (Sorex), Nauchnye trudy Sverdlovskogo gosudarstvennogo pedagogicheskogo instituta. 1973. Sb. 221. P. 109–125.
Ravkin Yu. S. Luk'yanova I. V. Geography of vertebrates of the southern taiga of Western Siberia. Novosibirsk, 1976. 338 p.
Revin Yu. V. Ecological and faunistic essay on insectivorous and small rodents of the Olekmo-Charsky Highlands, Materialy po biologii i dinamike chislennosti melkih mlekopitayuschih Yakutii. Yakutsk, 1968. P. 5–86.
Shvarc E. A. Demin D. V. On the factors of coexistence of related species in places of sympatry of ranges (on the example of Soricidae), Doklady AN SSSR. 1986. T. 289. No. 1. P. 255–256.
Siivonen L. Sorex isodon Nurov (1924) and S. ungulates Dobson (1890) as independent shrew species, Aquilo. Ser. Zool. 1965. Vol. 4. P. 3–49.
Skaren U. Variation, breeding and moulting in Sorex isodon Turov in Finland, Acta zool. fenn. 1979. Vol. 159. P. 1–30.
Skaren U. Variation in two shrews, Sorex unguiculatus Dobson and S. a. araneus L., Ann. Zool. Fenn. 1964. Vol. 1. P. 2.
Tavrovskiy V. A. Egorov A. V. Krivosheev V. G. Mammals of Yakutia. M.: Nauka, 1971. 670 p.
Vol'pert Ya. L. Averenskiy A. I. Nutrition characteristic of shrew shrews of the genus Sorex in the Western Predverkhoyanye, Teriologicheskie issledovaniya v Yakutii. Yakutsk, 1983. P. 57–73.
Vol'pert Ya. L. Reproduction of shrews (genus Sorex) of North-East Yakutia, Ohotnich'i i promyslovye resursy Sibiri. Novosibirsk: Nauka, 1986. P. 209–218.
Yudin B. S. Barsova L. I. Shrews of cedar forests of the Priteletsky focus of tick-borne encephalitis, Priroda ochagov kleschevogo encefalita na Altae. Novosibirsk: Nauka, 1967. P. 51–59.
Yudin B. S. Galkina L. I. Potapkina A. F. Mammals of the Altai-Sayan country. Novosibirsk: Nauka. Sib. otd-nie, 1979. 293 p.
Yudin B. S. Fauna of shrews (Mammalia. Soricidae) of the North of Western Siberia, Biologicheskie problemy Severa. Magadan, 1971. Vyp. 48. P. 48–53.
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