1. Plēsīgo putnu monitorings, izpēte, aizsardzība

Publikācijas:

Bergmanis, U. 1989: How to identify the Spotted Eagle Aquila clanga Pallas and the Lesser Spotted Eagle Aquila pomarina C. L. Brehm. Birds in nature 2:113-122. (In Latvian, summary in English)

Bergmanis, U. 1993: The Montagu’s Harrier (Circus pygargus) in Latvia. Proceedings of the International Montagu’s Harrier Conference. Kiel-Raisdorf

Bergmanis, U. 1996: Identification of optimal ringing age of juvenile Common Buzzards Buteo buteo (L.) and Goshawks Accipiter gentilis (L.) using the egg incubation water test. Populationsökologie Greifvogel- und Eulenarten 3:231-234

Bergmanis, U. 1996: On the Taxonomy of the Lesser Spotted Eagle Aquila pomarina and Greater Spotted Eagle A. clanga. In: Meyburg, B.-U. & R. D. Chancellor eds. Eagle Studies. World Working Group on Birds of Prey (WWGBP). Berlin, London & Paris: 199-207

Bergmanis, U. 1999: Taxonomy, distribution, number and ecology of the Lesser Spotted Eagle Aquila pomarina C. L. Brehm in Latvia. Summary of a promotion paper for the degree of doctor biology. Riga

Bergmanis, U. 2000: Return of the Golden Eagle Aquila chrysaetos to Teici bog. Putni daba 10.4: 6-11

Bergmanis, U. 2000: Return of the Golden Eagle Aquila chrysaetos to Teici bog. Putni daba 10.4: 6-11

Bergmanis, U. 2006: Identifying of Lesser Spotted Eagles by wing markers in Latvia. In: Stubbe, M., Stubb, A. (Hrsg): Populationsökologie Greifvogel- und Eulenarten 5:116. – Halle/S.

Bergmanis, U., Cīrulis, V. 2001: Confirmed breeding of Short – eared Owl in Latvia (In Latvian, summary in English). Putni daba 11.2: 4-5

Bergmanis, U., Drobelis, E., Karaska, D. 1997: Lesser Spotted Eagle Aquila pomarina. In: Hagemeijer, W. J. M., Blair, M. J. (eds.): The EBCC Atlas of European Breeding Birds: Their Distribution and Abudance. T & A D Poyser. London: 164-165

Bergmanis, U., Kreilis, M., Kemlers, A., Lipsbergs, J., Petrins, A. 1990: First Results of Raptor Monitoring in Latvia. Putni dabā 3: 148-153 (In Latvian, summary in English)

Bergmanis, U., Lipsbergs, J. 1993: Number, distribution and some data of breeding biology of the Golden Eagle (Aquila chrysaetos) in Latvia. In: Baltic Birds VI. Proceedings of the Sixth Conference on the Study and Conservation of Migratory Birds of the Baltic Basin. Sonderausgabe von Bucephala: 138-140. (In German, summary in English)

Bergmanis, U., Petrins, A., Kemlers, A. 1993: Density and breeding success of some diurnal raptors in Latvia. In: Baltic Birds VI. Proceedings of the Sixth Conference on the Study and Conservation of Migratory Birds of the Baltic Basin. Sonderausgabe von Bucephala: 56-60. (In German, summary in English)

Bergmanis, U., Petrins, A., Strazds, M. 1990: Lesser Spotted Eagle in Latvia - Numbers, Distribution and Ecology. In: Viksne, J. & Vilks, I. (eds.): Baltic Birds 5. Ecology, Migration and Protection of Baltic Birds. „Zinatne“ Publ. Riga. Vol. 1: 35-38

Bergmanis, U., Petrins, A., Strazds, M. 2001: The number, distribution and breeding results of the Lesser Spotted Eagle Aquila pomarina in Latvia. Acta ornithoecol., Jena 4.2-4:305 – 319

Bergmanis, U., Petrins, A., Strazds, M., Krams, I. 2001: Probable case of hybridization of Spotted eagle Aquila clanga and Lesser Spotted eagle A. pomarina in Eastern Latvia. Acta ornithoecol., Jena 4.2-4:297-304

Bergmanis, U., Strazds, M. 2001: Another possible hybridization case of Lesser and Greater Spotted Eagle in Latvia (In Latvian, summary in English). Putni daba 11.2: 6-7

Bergmanis, U.; Petrins, A.; Cirulis, V.; Matusiak, J.; Kuze, J. 2006: Lesser Spotted Eagle Aquila pomarina in Latvia – current status, endangerment and perspectives. In: Stubbe, M., Stubb, A. (Hrsg): Populationsökologie Greifvogel- und Eulenarten 5:95-115. – Halle/S.

Bergmanis, U.2004: Analysis of breeding habitats of the Lesser Spotted Eagle Aquila pomarina in Latvia. In: Chancellor, R. D. & B.-U. Meyburg eds. Raptors Worldwide. WWGBP/MME. Penti Kft. Budapest: 537-550

Dravecký M, Sellis U, Bergmanis U, Dombrovski V, Lontkowski J, Maciorowski G, Maderič B, Meyburg B-U, Mizera T, Stój M, Treinys R & Wójciak J 2008: Colour ringing of the Spotted Eagles (Aquila pomarina, Aquila clanga and their hybrids) in Europe – a review. Slovak Rapt J, 2: 37-52

Helbig, A. J., Seibold, I., Kocum, A., Liebers, D., Irvin, J., Bergmanis, U., Meiburg, B. U., Scheller, W., Stubbe, M., Bensch, S. 2005: Genetic differentation and hybridization between greater and lesser spotted eagles (Accipitriformes: Aquila clanga, A. pomarina). J Ornithol 146:226-234

Ķuze, J., Lipsbergs, J., Bergmanis, U. 2010: Jaunumi jūras ērgļu izpētē un ligzdvietu aizsardzībā Latvijā. Putni dabā 2010/1-2: 10-19

Langgemach, T., Sömmer, P., Graszynski, K., Meyburg, B.-U. & Bergmanis, U. 2010: Analyse schlechter Reproduktionsergebnisse beim Schreiadler (Aquila pomarina) in Brandenburg im Jahr 2009. Otis 18:51-64.

Lipsbergs, J., Bergmanis, U. 2000: Recent Population Status and Conservation Measures for the White – tailed Eagle in Latvia. Sea Eagle Conference 2000. Swedish Society for Nature Conservation. Abstracts

Meyburg B-U, Graszynski K, Langgemach T, Sommer P & Bergmanis U 2008: Cainism, nestling management in Germany in 2004-2007 and satellite tracking of juveniles in the Lesser Spotted Eagle (Aquila pomarina). Slovak Rapt J, 2: 53-72

Meyburg, Bernd-U., Scheller, W. & Bergmanis, U. 2004: Home range size, Habitat utilisation, Hunting and Time budgets of Lesser Spotted Eagles Aquila pomarina with regard to Disturbance and Landscape Fragmentation. In: Chancellor, R. D. & B.-U. Meyburg eds. Raptors Worldwide. WWGBP/MME. Penti Kft. Budapest: 615-635

Petrins, A., Strazds, M., Bergmanis, U. 1997: The Greater Spotted Eagle in Latvia – a historical reviev. Putni daba 6.3: 7-14 (In Latvian, summary in English)

Petriņš, A., Bergmanis, U. 1986: The Short-toed Eagle (Circaetus gallicus Gm.) in Latvia. Ohrana, ekologia i etologia zivotnih. Riga: 52-72 (In Latvian, summary in English)

Scheller, W., Bergmanis, U., Meyburg, B.-U., Furkert, B., Knack, A., Röper, S. 2001: Raum – Zeit – Verhalten des Schreiadlers (Aquila pomarina). Acta ornithoecol., Jena 4.2-4:75-236.

Strazds, M., Bergmanis, U., Petrins, A. 1997: Number and Distribution of the Lesser Spotted Eagle in Latvia. Putni daba 6.3: 19-24 (In Latvian, summary in English)

VÄLI, Ü., DOMBROVSKI, V., TREINYS, R., BERGMANIS, U., DARÓCZI, S.J., DRAVECKY, M., IVANOVSKI, V., LONTKOWSKI, J., MACIOROWSKI, G., MEYBURG, B.-U., MIZERA, T., ZEITZ, R. and ELLEGREN, H. 2010: Widespread hybridization between the Greater Spotted Eagle Aquila clanga and the Lesser Spotted Eagle Aquila pomarina (Aves: Accipitriformes) in Europe. Biological Journal of the Linnean Society, 2010, 100, 725–736.

Meyburg B-U, Bergmanis U., Langgemach T., Graszynski K, Hintz A., Börner I., Sommer P & Meyburg C. 2011: EXPERIENCE WITH THE HACKING METHOD FOR SUPPORT OF THE LESSER SPOTTED EAGLE (AQUILA POMARINA) POPULATION IN GERMANY. 8^th Conference of the European Ornitololists’ Union. Abstracts. Riga

http://www.pomarina.lv/

Forums par mazo ērgli.

Intervija par mazo ēgli.

Tā dzimst mazā ērgļa ola.

2. Mitrāju biotopu (purvi, pārplūstošie zālāji, saldūdeņi), Īpaši aizsargājamo dabas teritoriju aizsardzība, apsaimniekošanas plānošana

Publikācijas:

Bergmanis, U. 1996: The Teici Reserve, Latvia. In: Hails, A. J. (eds.). Wetlands, Biodiversity and the Ramsar Convention. Ramsar Convention Bureau. Ministry of Environment and Forests, India: 99-98

Bergmanis, U. 2005: Towards the Restoration of the Natural Water Balance in Raised and Transitional Bogs in the Eastern Part of Latvia. “W3M Conference for Wetlands: Monitoring, Modelling and Management”, Abstracts, Poland, 22-25 September 2005

Bergmanis, U. 2008: Klānu pļavu hidroloģijas un veģetācijas atjaunošanas pieredze Lubāna mitrājā. Grām.: Aktuālā savvaļas sugu un biotopu apsaimniekošanas problemātika Latvijā (Red. Auniņš, A.). Rīga, 73-80 lpp.

Bergmanis, U., Brehm, K., Matthes, J. 2002: Restoration of natural hydrological regime in raised bogs and transitional mires. Grām.: Aktuāli savvaļas sugu un biotopu apsaimniekošanas piemēri Latvijā (Red. Opermanis, O.). Rīga, 49-56 lpp.

3. Zīdītājdzīvnieku populāciju novērtēšana, apsaimniekošanas plānošana

Publikācijas:

Dambenieks, G., Bergmanis, U. 1996: Population dynamics of the elk (Alces alces) and wild boar (Sus scrofa) in „Teici“ nature reserve and neighbouring regions – principles of game population density regulation through hunting. Beitraege zur Jagd- und Wildforschung, Bd. 21: 171-178 (In German, summary in English)

Pupila, A., Bergmanis, U. 2005: Species diversity and population dynamics of small mammals in the area of Teici nature reserve. 6th Baltic Theriological Conference

A. Stepanova¹, U. Bergmanis². 2011:Biometric characteristics of the wild boar (Sus scrofa L.) in the Teiči and Krustkalni nature reserves, Eastern Latvia. 8-th Baltic Theriological Conference, Lithuania, 7–9 October 2011

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