Contribution to the Study of the European Ground Squirrel’s Population (Spermophilus citellus Linnaeus, 1766) in Rila National Park, Bulgaria

• Authors: Emanuil Mitrevichin , Lidia Sakelarieva

Title variants

IT

Contribution to the Study of the European Ground Squirrel’s Population (Spermophilus citellus Linnaeus, 1766) in Rila National Park, Bulgaria

PL

Przyczynek do badań populacji susła moręgowanego (Spermophilus citellus Linnaeus, 1766) w Parku Narodowym „Rila” (Bułgaria)

RU

Contribution to the Study of the European Ground Squirrel’s Population (Spermophilus citellus Linnaeus, 1766) in Rila National Park, Bulgaria

• Languages of publication: EN

Abstracts

RU

Although there are still some large and stable populations of the European Ground Squirrel, there has been a serious decline in the number and density of most of the species populations throughout its range, including in Bulgaria. The aim of the study is to supplement the scientific data about the population of the European Ground Squirrel and its habitat in Rila National Park, Southwestern Bulgaria. The research was carried out in 2017-2019 in two study areas, each divided into 20 (21) transects (every 100 m long and 5 m wide). The results have shown that the relative population density based on the number of holes tends to decrease in the period of study. The most likely reason for this, and the most significant identified threat to the population of the species in the research area in general, is the observed deterioration of the habitat status.

PL

Pomimo tego, że na całym obszarze występowania susła moręgowanego, również w Bułgarii, znajdują się nadal duże i stabilne populacje tego gatunku, to aktualnie obserwuje się poważny spadek liczebności i zagęszczenia większości jego populacji. Celem badań było uzupełnienie danych na temat stanu populacji susła moręgowanego i jego siedlisk w Parku Narodowym „Rila”, w południowo-zachodniej Bułgarii. Badania zostały przeprowadzone w latach 2017-2019 na dwóch obszarach badawczych. Każdy z nich był podzielony na 20 (21) transektów o długości 100 m i szerokości 5 m. Stwierdzono, że w okresie badań, względne zagęszczenie populacji susła mierzone liczbę nor wykazywało tendencję spadkową. Wskazano na pogorszenie się stanu siedlisk jako najbardziej prawdopodobną przyczynę tego zjawiska oraz jako najbardziej istotne zagrożenie dla populacji gatunku na obszarze badań.

IT

Although there are still some large and stable populations of the European Ground Squirrel, there has been a serious decline in the number and density of most of the species populations throughout its range, including in Bulgaria. The aim of the study is to supplement the scientific data about the population of the European Ground Squirrel and its habitat in Rila National Park, Southwestern Bulgaria. The research was carried out in 2017-2019 in two study areas, each divided into 20 (21) transects (every 100 m long and 5 m wide). The results have shown that the relative population density based on the number of holes tends to decrease in the period of study. The most likely reason for this, and the most significant identified threat to the population of the species in the research area in general, is the observed deterioration of the habitat status.

Keywords

EN

monitoring; population density; habitat parameters; Spermophilus citellus; Rila National Park

IT

monitoring; population density; habitat parameters; Spermophilus citellus; Rila National Park; monitoring; population density; habitat parameters; Spermophilus citellus; Rila National Park

RU

monitoring; population density; habitat parameters; Spermophilus citellus; Rila National Park

PL

monitoring; zagęszczenie populacji; warunki siedliskowe; Spermophilus citellus; Park Narodowy „Rila”; monitoring; zagęszczenie populacji; warunki siedliskowe; Spermophilus citellus; Park Narodowy „Rila”

• Publisher: Uniwersytet Kardynała Stefana Wyszyńskiego w Warszawie
• Journal: Studia Ecologiae et Bioethicae
• Year: 2020
• Volume: 18
• Issue: 4
• Pages: 75-83

Dates

published

2020-12-21

Contributors

author

Emanuil Mitrevichin

author

Lidia Sakelarieva

References

• Chassovnikarova, Tsenka, Michail Rovatsos, Nasko Atanasov, and Yordan Koshev. 2015. “Sex chromosome variability of Spermophilus citellus (Linnaeus, 1766) in the Southeastern part of the Balkan Peninsula.” Mammalian Biology 80(4): 365–371. https://doi.org/10.1016/j.mambio.2014.10.002.
• Haley, Jason, and Cari Mcgregor. “Spermophilus citellus.” Accessed September 21, 2020. https://animaldiversity.org/accounts/Spermophilus_citellus/.
• Hegyeli, Zsolt. 2020. “Spermophilus citellus.” In The IUCN Red List of Threatened Species 2020: e.T20472A91282380. https://dx.doi.org/10.2305/IUCN.UK.2020-2.RLTS.T20472A91282380.en. Accessed September 21, 2020.
• Janák, Milan, Pavel Marhoul, and Jan Matějů. 2013. Action Plan for the Conservation of the European Ground Squirrel Spermophilus citellus in the European Union. Brussels: European Commission.
• Koshev, Yordan. 2008. “Distribution and status of the European Ground Squirrel (Spermophilus citellus) in Bulgaria.” Lynx (Praha) 39(2): 251-261.
• Koshev, Yordan. 2014. “Small Mammals (Mammalia: Erinaceomorpha, Soricomorpha, Rodentia and Lagomorpha) in Ponor Special Protection Area (Natura 2000), Western Bulgaria: Species Diversity, Distribution and Conservation.” Acta Zoologica Bulgarica Suppl. 5: 107–115.
• Nedyalkov, Nedko, and Yordan Koshev. 2014. “Small Mammals (Erinaceomorpha, Soricomorpha, Rodentia, Lagomorpha) in Besaparski Ridove Special Protection Area (Natura 2000), Southern Bulgaria: Species Composition,Distribution and Conservation.” Acta Zoologica Bulgarica Suppl. 5: 201–212.
• Peshev, Tsolo, Danielo Peshev, and Vasil Valkov Popov. 2004. Fauna of Bulgaria: Mammalia. Sofia: Marin Drinov.
• Ramos-Lara, Nicolás, John L. Koprowski, Boris Kryštufek, and Ilse E. Hoffmann. 2014. „Spermophilus citellus (Rodentia: Sciuridae).“ Mammalian Species 46(913): 71–87. https://doi.org/10.1644/913.1.
• Stefanov, Vladimir. 2015. European ground squirrel (Spermophilus citellus Linnaeus, 1766). In Red Data Book of the Republic of Bulgaria (Part 2) - Animals, edited by Vasil Golemansky, and Dimitar R. Peev, 232. Sofia: BAS & MOEW. http://e-ecodb.bas.bg/rdb/en/vol2/Spcitell.html.
• Зидарова, Сирма. 2011. „Доклад по договор № 1960/13.04.2011 г. по проект BG0052 ‘Развитие на информационна система към националната система за мониторинг на биологичното разнообразие в България’.” Accessed August 9, 2020. http://eea.government.bg/bg/bio/nsmbr/reports. [Zidarova, Sirma. 2011. „Doklad po dogovor № 1960/13.04.2011 g. po proekt BG0052 ‘Razvitie na informatsionna Sistema kam natsionalnata sistema za monitoring na biologichnoto raznoobrazie v Bulgaria’.”]
• Костова, Румяна, Надя Цветкова и Йордан Кошев. 2015. Методика за оценка състоянието на Европейски лалугер (Spremophilus citellus L. 1766). София: ИАОС http://eea.government.bg/bg/bio/opos/activities-results/Metodika_za_ocenka_Spermophilus_citellus.pdf/view [Kostova, Rumyana, Nadya Tsvetkova i Yordan Koshev. 2015. Metodika za otsenka sastoyanieto na Evropeyski laluger (Spermophilus citellus L. 1766). Sofia: IAOS].
• Кошев, Йордан, Надя Цветкова, и Румяна Костова. 2015. Методика за мониторинг на Европейски лалугер (Spermophilus citellus L. 1766). София: ИАОС. http://eea.government.bg/bg/bio/nsmbr/praktichesko-rakovodstvo-metodiki-za-monitoring-i-otsenka/Metodika_za_ocenka_Spermophilus_citellus.pdf [Koshev, Yordan, Nadya Tsvetkova i Rumyana Kostova. 2015. Metodika za monitoring na Evropeyski laluger (Spermophilus citellus L. 1766). Sofia: IAOS].
• Кошев, Йордан. 2015. “Европейски лалугер (Spermophilus citellus).” В Проект на план за управление на Национален парк „Рила“, 2015-2024 г. Сборник биологична характеристика – том 2, 626-642. София: ДЗЗД „Рила Консултанти.” [Koshev, Yordan. 2015. “Evropeyski laluger (Spermophilus citellus).” V: Proekt na plan za upravlenie na Natsionalen park “Rila”, 2015-2024 g. Sbornik biologichna harakteristika – tom 2, 626-642. Sofia: DZZD “Rila Konsultanti.”].
• Кошев, Йордан. 2018. План за действие за опазване на европейския лалугер (Spermophilus citellus) в България: 2018–2027. София: МОСВ, БДЗП. https://www.moew.government.bg/static/media/ups/tiny/filebase/Nature/Biodiversity/NCBP/NSBR2018/BDZPRilaBufer/Action_plan_S_citellus_Bulgaria_MOEW_20180328.pdf. [Koshev, Yordan. 2018. Plan za deystvie za opazvane na evropeyskia laluger (Spermophilus citellus) v Bulgaria: 2018–2027. Sofia: MOSV, BDZP].
• Милушев, Владимир. 2012. Наръчник за работа с доброволци при провеждане на дейности по наблюдение на процеса на възстановяване и аклиматизация на европейския лалугер на територията на Природен парк „Витоша“. София: Природен парк „Витоша“. [Milushev, Vladimir. 2012. Narachnik za rabota s dobrovoltsi pri provezhdane na deynosti po nablyudenie na protsesa na vazstanovyavane i aklimatizatsia na evropeyskia laluger na teritoriyata na Priroden park “Vitosha”. Sofia: Priroden park “Vitosha”].
• Попов, Васил, и Атила Седефчев. 2003. Бозайниците в България. Определител. София: Природен парк „Витоша“. [Popov, Vasil, i Atila Sedefchev. 2003. Bozaynitsite v Bulgaria. Opredelitel. Sofia: Priroden park “Vitosha”].
• Попов, Васил. 2007. „Лалугер (Spermophilus citellus Linaeus, 1766).” В Бозайниците, важни за опазване в България, Pед. Васил Попов, Николай Спасов, Теодора Иванова, Боряна Михова и Кирил Георгиев, 169-174. Arnhem: Dutch Mammal Society VZZ. [Popov, Vasil. 2007. „European souslik (Spermophilus citellus Linaeus, 1766).” In Bozaynitsi, vazhni za opazvane v Bulgaria, red. Vasil Popov, Nikolay Spasov, Teodora Ivanova, Boryana Mihova, i Kiril Georgiev, 169-174. Arnhem: Dutch Mammal Society].

Identifiers

DOI

10.21697/seb.2020.18.4.07