DYNAMICS OF NUMBER OF GREY HERONS (ARDEA CINEREA L.) COLONY IN THE UPPER COURSE OF ZAPOROZHYE (DNEPROVSKOYE) RESERVOIR

М. V. Vovk

Abstract


The research was performed in the area of natural reserve "Dneprovsko-Orelsky" and its adjacent territory – the island Pogorely. We discovered the changes of number of grey heron in colonial settlements, determined the principal factors influencing the formation of spatial structure of island bird communities. The analysis of nest distribution towards tree breeding biotopes was performed and stability of spatial structure of bird colonies was proved. We were tracking the number dynamics of pioneer colony and revealed the principal ecological and anthropogenic factors influencing the fluctuation of its abundance. There was some annual variability in the distribution of nests. In 2007, an average we count three nests per one tree. In 2008 and 2009 we registered the increase of this indicator - it was 5 and 8 nests per tree respectively. This was followed by stabilization of the average density until 6 nests per tree. The analysis of the distribution of the nests on the trees for the entire period of observation was very informative. The closest statistical distribution was the theoretical Poisson distribution. Deviations from the theoretical distribution can highlight the ecological nature of the phenomenon which was observed. Thus, the analysis of the histogram indicates that the number of nests was 4-7 per tree and this was much less than might be expected theoretically for a Poisson distribution. In contrast, the density of 23-31 nest per tree exceeds the level that can be expected based on the assumption of completely random (neutral) pattern of spatial organization of bird settlement. The advantage of dense groupings of the nests over groups with moderate density indicates that such settlement quite confidently could be attributed to the colonial type. Analysis of the nest distribution pattern towards specific tree proved certain stability of the spatial structure of colonial bird settlement

Key words: grey heron, number, formation of spatial structure.


Full Text:

PDF

References


Булахов В.Л, Чегорка П.Т. Історія розвитку орнітологічних досліджень в степовому Придніпров’ї. : Птахи степового Придніпров’я: минуле, сучасне, майбутнє: (Матеріали Перших Вальхівських читань). – Дніпропетровськ, 2007.

Вовк М.В. Аналіз методик дослідження середовищетвірної активності птахів // Вісник Дніпропетровського університету. – Біологія. Екологія. – 2007. – Випуск 3/1. – С. 20-24.

Вовк М.В. Роль колоніальних поселень чапель у формуванні комплексів NPK у ґрунтових покривах Дніпровсько-Орільського природного заповідника // Проблеми екології та охорони природи техногенного регіону: Міжвідомчий збірник наукових праць / Відп. ред.. С.В. Беспалова. – Донецьк: ДонНУ, 2004. – Вип.4. – С. 97-102.

Гавриленко В.С., Губкин А.А. К биологии размещения серой цапли в условиях степного Приднепровья. // Экология гнездования птиц и методы ее изучения: Тез. Докладов Всесоюзной конференции молодых ученых. – Самарканд: Б. и., 1979. – С. 210-212.

Данилов Н.Н. Влияние паводка на жизнь птиц в дельте Волги //Уч.зап. ЛГУ, 1949. Вып. 1. № 117. с.34-50.

Задорожнев М.И. Распределение гнездовых колоний и численность серой цапли на Зейско-Буреинской равнине. // Орнитология в СССР.– Книга вторая (Материалы (тезисы) Пятой Всесоюзной орнитологической конференции) – Ашхабад, 1969. – 784 с.

Кищинский А.А. О структуре и динамике областей гнездования птиц на севере // Тр. зоол. ин-та АН СССР, 1983. Т. 116. С.47-57.

Лэк Д. Численность животных и её регуляция в природе / Д. Лэк: перевод с англ. Б.Н. Сидоровой. – Москва, 1957. – 404 с.

Мацюра О.В., Мацюра М.В. Нелінійність структури видового різноманіття // Питання біоіндикації та екології – 2011. – Вип. 16, № 2 – С. 3–8.

Мельников Ю.И. Динамика пространственной структуры колониальных птиц в нестабильных условиях среды // Материалы Х Прибалт. орниолог. конф. Рига: Изд-во АН ЛатССР, 1981. Т.2. С.107-110.

Росляков Г.Е. «Краткие сведения о некоторых редких и малоизученных птицах Нижнего Приамурья» // Редкие птицы Дальнего Востока. Владивосток, 1981. С. 112—115.

Howard H.E. 1920. Territory in bird life. L. // Atheneum, 239 p.

REFERENCES

Bulakhov, V.L., & Chegorka, P.T. (2007). History of ornithological research in steppe part of Dnieper area: Birds of steppe Dnieper area: past, modern, and future (Proc. of First Valkhiv Reading). Dniepropetrovsk.

Vovk, M. V. (2007). Analysis of research methods of activity of birds. Bulletin of Dniepropetrovsk State University. Biology, Ecology, 3(1), 20-24.

Vovk, M.V. (2004). Role of colonial settlements of herons for the formation of soil NPK complexes in Dnieprovsko-Orelskiy Nature Reserve. Problems of Ecology and Nature Protection of Technogen Region: The Interdepartmental Collction of Scientific Works, Donetsk: DonnNU.

Gavrilenko, V. S., & Gubkin, A. A. (1979). Towards the biology of distribution of grey heron in steppe Dnieper area. Studying of Breeding Ecology of Birds: Proc. All-Soviet Union Conf, of Young Scientists, Samarkand.

Danilov, N.N. (1949). Influnce of flooding on birds in Volga Delta. Scientific Transactions of Leningrad University, 1(117), 34-50.

Zadorozhnev, M.I. (1969). Distribution of breeding colonies and abundance of grey heron in Zeysko-Bureinskaya Valley. Ornithology in the USSR, Part II. Proc.V All-Soviet Union Ornithological Conf., Ashhabad.

Kishchinskiy, A.A. (1983). Structire and dynamics of bird breeding areals in the north. Transcations of Zoological Institute of USSR Academy of Sc., 116(47-57).

Lack, D. (1957). Number of animals and its regulation in nature. In translated by B.N. Sidorova. Moscow.

Matsyura, O.V., & Matsyrua, M.V. (2011). Non-linear pattern of structure of species diversity. Issues of Bioindication and Ecology, 16(2), 3–8.

Melnikov, Yu. I. (1981). Dynamics of spatial structure of colonial birds in unstable environment. Proc. Х Ornith. Conf. Of Baltic Countries. Riga, Latvian Academy of Sc.

Roslyakov, G. Ye. (1981). Brief data about some rare birds of low Amur area. In Rare birds of Far East. Vladivostok.

Howard, H.E. (1920). Territory in bird life. Atheneum.




DOI: http://dx.doi.org/10.15421/20122_18

Article Metrics

Metrics Loading ...

Metrics powered by PLOS ALM

Refbacks

  • There are currently no refbacks.




Since April 2018 Journal changed the editorial policy and starts to be published exclusively in English, and changed its main site into www.ujecology.com

 

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

© 2017 Ukrainian Journal of Ecology. ISSN 2520-2138