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Does the Abundance of Voles Microtus spp. Still Determine a Number of Wintering Long-Eared Owls Asio Otus?

References Aars, J. & Ims R.A. (2002). Intrinsic and climatic determinants of population demography: the winter dynamics of tundra voles. Ecology , 83, 3449−3456. DOI: 10.1890/0012-9658(2002)083[3449:IACDOP]2.0.CO;2. Begon, M., Townsend, C.R. & Harper J.L. (2006). Ecology, individuals, populations and communities . Boston: Black-well. Brommer, J.E., Karell, P., Pihlaja, T., Painter, J.N., Primmer, C.R. & Pietiäinen H. (2003). Ural owl sex allocation and parental investment under poor food conditions., Oecologia , 137,140−147. DOI: 10.1007/s00442

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Some bioecological aspects of the rose aphid, Macrosiphum rosae (Hemiptera: Aphididae) and its natural enemies

atlas of pests of ornamental trees, shrubs and flower. Wolfe Publishing Ltd. [9] Behdad, E. (1988), Pests and diseases of forest trees and shrubs and ornamental plants of Iran, Neshat Publishers. [10] Rhomberg, L. R., Joseph, S., Singh, R. S. (1985), Seasonal variation and clonal selection in cyclically parthenogenetic rose aphids (Macrosiphum rosae), Canadian Journal of Genetics and Cytology 27(2), 224-232. [11] Tomiuk, J., Wohrmann, K. (1980), Population growth and population structure of natural populations of

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