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Long-term size and range changes of the Griffon Vulture Gyps fulvus population in the Balkans: a review

Published online by Cambridge University Press:  07 July 2021

DOBROMIR DOBREV Open the ORCID record for DOBROMIR DOBREV [Opens in a new window] ,
RIGAS TSIAKIRIS ,
THEODORA SKARTSI ,
VLADIMIR DOBREV ,
VOLEN ARKUMAREV ,
KALLIOPI STARA Open the ORCID record for KALLIOPI STARA [Opens in a new window] ,
ANTON STAMENOV ,
NIKOS PROBONAS ,
THEODOROS KOMINOS  and
ANTONIA GALANAKI
...Show all authors
DOBROMIR DOBREV*
Affiliation:
Bulgarian Society for the Protection of Birds, Sofia 1111, 71 ‘Yavorov’, etr.4, ap.1; E-mail: dobromir.dobrev@bspb.org.
RIGAS TSIAKIRIS
Affiliation:
Forestry Service of Ioannina, M. Kotopouli 62, Ioannina, 45445 Greece.
THEODORA SKARTSI
Affiliation:
WWF Greece, 21 Lembesi, 11743 Athens, Greece.
VLADIMIR DOBREV
Affiliation:
Bulgarian Society for the Protection of Birds, Sofia 1111, 71 ‘Yavorov’, etr.4, ap.1; E-mail: dobromir.dobrev@bspb.org.
VOLEN ARKUMAREV
Affiliation:
Bulgarian Society for the Protection of Birds, Sofia 1111, 71 ‘Yavorov’, etr.4, ap.1; E-mail: dobromir.dobrev@bspb.org.
KALLIOPI STARA
Affiliation:
University of Ioannina, Department of Biological Applications and Technology, Laboratory of Ecology, University campus. 45110, Ioannina, Greece.
ANTON STAMENOV
Affiliation:
Bulgarian Society for the Protection of Birds, Sofia 1111, 71 ‘Yavorov’, etr.4, ap.1; E-mail: dobromir.dobrev@bspb.org.
NIKOS PROBONAS
Affiliation:
Hellenic Ornithological Society, Themistokleous 80, 10681, Athens, Greece.
THEODOROS KOMINOS
Affiliation:
Department of Zoology, School of Biology, Aristotle University of Thessaloniki, GR-54124, Thessaloniki, Greece.
ANTONIA GALANAKI
Affiliation:
Department of Zoology, School of Biology, Aristotle University of Thessaloniki, GR-54124, Thessaloniki, Greece.
ELZBIETA KRET
Affiliation:
WWF Greece, 21 Lembesi, 11743 Athens, Greece.
BEN HALLMANN
Affiliation:
40008 Rapsani, Greece.
BRATISLAV GRUBAČ
Affiliation:
Nemanjina I/14, 35250 Paraćin, Serbia.
GORAN SUŠIĆ
Affiliation:
Grifon - Birds of Prey Conservation Society, Ornithological station Rijeka CASA, Ružićeva 5/2, HR-51000 Rijeka, Croatia.
SAŠA MARINKOVIĆ
Affiliation:
Institute for Biological Research “Siniša Stanković”, National Institute of Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11060 Belgrade, Serbia.
IRENA HRIBŠEK
Affiliation:
Birds of Prey Protection Foundation, Bulevar Despota Stefana 142, 11060 Belgrade, Serbia.
STEFAN SKORIĆ
Affiliation:
Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1, 11030 Belgrade, Serbia.
HANS JERRENTRUP
Affiliation:
A-2273 Hohenau an der March, Rathausplatz 1, Germany.
VEDRAN LUCIĆ
Affiliation:
HR-10000 Zagreb, Croatia.
SVEN KAPELJ
Affiliation:
Association BIOM/BirdLife Croatia, Preradovićeva 34, HR-10000 Zagreb, Croatia.
GEORGI STOYANOV
Affiliation:
Birds of Prey Protection Society, 23 Golyam Bratan Str., 1618 Sofia, Bulgaria.
SYLVIA ZAKKAK
Affiliation:
Management Body of Dadia-Lefkimi-Soufli Forest National Park Dadia, 68400, P.O. 1413 Dadia, Greece.
HRISTO HRISTOV
Affiliation:
Rewilding Rhodopes Foundation, Haskovo 6300, 41 Bulgaria blvd.
STOYCHO STOYCHEV
Affiliation:
Bulgarian Society for the Protection of Birds, Sofia 1111, 71 ‘Yavorov’, etr.4, ap.1; E-mail: dobromir.dobrev@bspb.org.
LAVRENTIS SIDIROPOULOS
Affiliation:
Kanari 1 st, 57010, Asvestochori, Greece.
TAULANT BINO
Affiliation:
Albanian Ornithological Society, “Ymer Kurti” Street, Olympia Center, 2nd Floor, No. 24, 1001, Tirana, Albania.
DIMITAR DEMERDZHIEV
Affiliation:
Bulgarian Society for the Protection of Birds, Sofia 1111, 71 ‘Yavorov’, etr.4, ap.1; E-mail: dobromir.dobrev@bspb.org.
*
*Author for correspondence; email: dobromir.dobrev@bspb.org
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Summary

The Eurasian Griffon Vulture Gyps fulvus is a large Palearctic, Indohimalayan and Afrotropical Old-World vulture. The species’ range is vast, encompassing territories from the Pyrenees to the Himalayas. We reviewed and analysed a long-term data set for Griffon Vulture in the Balkans to estimate the change in its population size and range between 1980 and 2019. After a large historical decline, the Griffon Vulture population slightly increased in the last 39 years (λ = 1.02) and reached 445–565 pairs in 2019. We recorded a gradual increase of Griffon Vulture subpopulations in Serbia (λ = 1.08 ± 0.003), Bulgaria (λ = 1.08 ± 0.003) and Croatia (λ = 1.05 ± 0.005) and steep to a moderate decline of the species subpopulations in Greece (λ = 0.88 ± 0.005) and North Macedonia (λ = 0.94 ± 0.01). However, species range contracted to half of its former range in the same period. It occurred in 42 UTM squares in the 1980–1990 period and only 20 UTM squares between 2011 and 2019 and concentrated into three source subpopulations in Bulgaria, Serbia, and Croatia. Following reintroductions of the Griffon Vulture in Bulgaria, new colonies were formed at three novel localities after 2010. Regular movements of individuals between the different subpopulations exist nowadays. Therefore, preservation of both current and former core areas used for breeding and roosting is essential for species conservation in the region. However, the Griffon Vulture still faces severe threats and risk of local extinction. Various hazards such as poisoning, collision with energy infrastructure, disturbance and habitat alteration are depleting the status of the Balkan population and its full recovery. Further studies should analyse age-specific survival and mortality, recruitment, genetic relatedness, spatial use to inform the viability of this population in the future.

Keywords

demographyscavengerEuropestatusmonitoring

Information

Type
Review Article
Information
Bird Conservation International , Volume 32 , Issue 2 , June 2022 , pp. 206 - 221
Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of BirdLife International

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Footnotes

The online version of this article has been updated since original publication. A notice detailing the changes has also been published at https://doi.org/10.1017/S0959270921000320.

References

Akcakaya, H. R., Ferson, S., Burgman, M., Keith, D. and Todd, C. (2000) Making consistent IUCN classifications under uncertainty. Conserv. Biol. 14: 1001–1013.CrossRefGoogle Scholar
Andevski, J., ed. (2013) Vulture conservation in the Balkan Peninsula and adjacent regions. 10 years of vulture research and conservation. Action plan for the recovery and conservation of vultures on the Balkan Peninsula and adjacent regions. Skopje, North Macedonia: Vulture Conservation Foundation & Frankfurt Zoological Society.Google Scholar
Angelov, I., Demerdzhiev, D. and Stoychev, S. (2006) Use of carcasses from wolf kills by Griffon Vultures (Gyps fulvus) in Eastern Rhodopes, Bulgaria. Pp. 160 in Houston, D. C. and Piper, S. E., eds. Proceedings of the International Conference on Conservation and Management of Vulture Populations. Thessaloniki, Greece: Natural History Museum of Crete & WWF Greece.Google Scholar
Arkumarev, V., Dobrev, D. and Stamenov, A. (2019) First record of Eurasian Griffon Vulture Gyps fulvus from the Balkans migrating to South Sudan revealed by GPS tracking. Scopus 39: 27–35.Google Scholar
Azmanis, P., Tsiakiris, R. and Alivizatos, H. (2009) Supplementary feeding for vultures in Greece, Cyprus and Balkan Peninsula. Pp. 344–365 in Donazar, J.A., Margalida, A. and Campión, D., eds. Buitres, muladares y legislation sanitaria: perspectives de un conflicto y sus consecuencias desde la biologia de la conservation. Donsotia, Spain: Aranzadi.Google Scholar
Balmford, A., Green, R. and Jenkins, M. (2003) Measuring the changing state in Nature. Trends Ecol. Evol. 18: 326–330.CrossRefGoogle Scholar
Baumgart, W. (1974) Wie steht es um Europas Geier? Der Falke 8: 258–267.Google Scholar
Bijleveld, M. (1974) Birds of prey in Europe. London, UK: Macmillan Press.CrossRefGoogle Scholar
BirdLife International (2017) Gyps fulvus The IUCN Red List of threatened species 2017: http://www.birdlife.org/. Accessed on 10 September 2020.Google Scholar
Borello, W. and Borello, R. (2002) The breeding status and colony dynamics of Cape Vulture Gyps coprotheres in Botswana. Bird Conserv. Internatn. 12: 79–97.CrossRefGoogle Scholar
Botha, A. J., Andevski, J., Bowden, C. G. R., Gudka, M., Safford, R. J., Tavares, J. and Williams, N. P. (2017) CMS Multi-species Action Plan to conserve African-Eurasian Vultures. Abu Dhabi, United Arab Emirates: Coordinating Unit of the CMS Raptors MOU. (CMS Raptors MOU Technical Publication No. 5. CMS Technical Series No. 35).Google Scholar
Bourdakis, S. (2019) Preliminary mapping of historical and active Griffon Vulture colonies Annex VI. Pp. 13–19 in Xirouchakis, S., ed. Action Plan for three scavengers (vultures): Bearded vulture (Gypaetus barbatus), Griffon vulture (Gyps fulvus), Cinereous vulture (Aegypius monachus). Athens, Greece: Hellenic Ornithological Society. (In Greek).Google Scholar
Buechley, E., Mcgrady, M., Coban, E. and Sekercioglu, C. (2018) Satellite tracking a wide-ranging endangered vulture species to target conservation actions in the Middle East and East Africa. Biodivers. Conserv. 27: 2293–2310.CrossRefGoogle Scholar
Buechley, E. R. and Şekercioğlu, Ç. H. (2016) The avian scavenger crisis: looming extinctions, trophic cascades, and loss of critical ecosystem functions. Biol. Conserv. 198: 220–228.CrossRefGoogle Scholar
Cano, C., de la Bodega, D., Ayerza, P. and Minguez, E. (2016) El veneno en Espaсa . Evolución del envenenamiento de faunasilvestre (1992–2013). Madrid, Spain: WWF y SEO/BirdLife.Google Scholar
Carcamo, B., Kret, E., Zografou, C. and Vasilakis, D. (2011) Assessing the impact on nine established wind farms on birds of prey in Thrace, Greece. Technical report. Athens, Greece: WWF.Google Scholar
Carrete, M., Sanchez-Zapata, J. A., Benitez, J. R., Lobonc, M., Montoya, F. and Donazar, J. A. (2012) Mortality at wind-farms is positively related to large-scale distribution and aggregation in Griffon Vultures. Biol. Conserv. 145: 102–108.CrossRefGoogle Scholar
Cramp, S. and Simmons, K., eds. (1980) The birds of the Western Palearctic . Vol. 2. Oxford– London–New York: Oxford University Press.Google Scholar
Davidović, S., Jelić, M., Marinković, S., Mihajlović, M., Tasić, V., Hribšek, I., Sušić, G. and Stamenković-Radeka, M. (2020) Genetic diversity of the Griffon Vulture (Gyps fulvus) population in Serbia and its importance for conservation efforts in the Balkans. Sci. Rep. 10: 20394.CrossRefGoogle Scholar
Del Moral, J. C. and Molina, B., eds. (2018) El buitre Leonado en Espana, poblacion reproductora en 2008 y metodo de censo. Madrid: SEO/BirdLife.Google Scholar
Demerdzhiev, D., Hristov, H., Dobrev, D., Angelov, I. and Kurtev, M. (2014a) Long–term population status, breeding parameters and limiting factors of the Griffon Vulture (Gyps fulvus) population in Eastern Rhodopes, Bulgaria. Acta Zool. Bulg. 66: 373–384.Google Scholar
Demerdzhiev, D., Stoychev, S., Dobrev, D., Spasov, S. and Oppel, S. (2015) Studying the demographic drivers of an increasing Imperial Eagle population to inform conservation management. Biodivers. Conserv. 24: 627–639.CrossRefGoogle Scholar
Demerdzhiev, D., Stoychev, S., Dobrev, D., Spasov, S. and Terziev, N. (2014b) Conservation measures undertaken to improve the population status of eastern imperial eagle (Aquila heliaca) in Bulgaria. Slovak Raptor J. 8: 27–39.CrossRefGoogle Scholar
Dobrev, D., Arkumarev, V., Skartsi, T., Stamenov, A. and Kret, E. (2019) Griffon Vulture population trend and size in the Eastern Rhodopes at the crossroads to Asia. European vulture conference October 2019 poster. Algarve, Portugal.Google Scholar
Dobrev, D. and Stoychev, S. (2013) Vulture conservation in Bulgaria. Pp. 38-51 in Proceedings of the Griffon Vulture Conference, 6–8 March 2013, Limassol, Cyprus.Google Scholar
Donázar, J. A. (1987) Apparent increase in a Griffon Vulture (Gyps fulvus) population in Spain. J. Raptor Res. 21: 112–115.Google Scholar
Donázar, J. A. and Genero, F. (1997) Griffon Vulture Gyps fulvus. P. 141 in Hagemeijer, E. J. M. and Blair, M. J., eds. The EBCC Atlas of European breeding birds: Their distribution and abundance. London, UK: T & AD Poyser.Google Scholar
Donázar, J. A., Avizanda, A., Fargallo, J., Margalida, A., Moleón, M., Morales-Reyes, Z., Moreno-Opo, R., Perez-Garcia, J., Sánchez-Zapata, J., Zuberogoitia, I. and Serrano, D. (2016) Roles of raptors in a changing world: from flagships to providers of key ecosystem services. Ardeola 63: 181–234.CrossRefGoogle Scholar
Donázar, J., Margalida, A., Carrete, M. and Sánchez-Zapata, J. (2009) Too sanitary for vultures. Science 326: 664.CrossRefGoogle ScholarPubMed
Douteau, B., Kafkaletou-Diez, A., Cárcamo, B., Vasilakis, D. and Kret, E. (2011) Impact assessment of wind farms on birds of prey in Thrace – Annual Report August 2009–August 2010. Technical Report. Athens, Greece: WWF Greece.Google Scholar
Ferrer, M. (2012) Birds and powerlines. From conflict to solution. Sevilla, Spain: Endesa S.A. and Fundacion Migres.Google Scholar
Genero, F., Franchini, M., Fanin, Y. and Filacorda, S. (2020) Spatial ecology of non-breeding Eurasian Griffon Vultures Gyps fulvus in relation to natural and artificial food availability. Bird Study 67: 53–70.CrossRefGoogle Scholar
Griesinger, J. (1998) Juvenile dispersion and migration among Griffon Vultures Gyps fulvus in Spain. Pp. 613–621 in Chancellor, R. D., Meyburg, B. U. and Ferrero, J. J., eds. Holarctic birds of prey. Merida, Spain: ADENEX and World Working Group on Birds of Prey and Owls.Google Scholar
Gregory, R., Gibbons, D., and Donald, P. (2004) Bird census and survey techniques. Pp. 17- 55 in Sutherland, W., Newton, I. and Green, R., eds. Bird ecology and conservation: A handbook of techniques. New York: Oxford University Press.CrossRefGoogle Scholar
Grubach, B. (2005) Artificial feeding places and conservation of vultures and other scavenging birds in Serbia. Vulture News 52.Google Scholar
Grubach, B. (2014) The Griffon Vulture Gyps fulvus. Belgrade, Serbia: Nature Conservation Institute Serbia.Google Scholar
Grubach, B., Radakovic, M. and Vasic, V. (2018) Gyps fulvus. Pp. 119–122 in Radishic, D., Vasic, V., Puzovic, S., Ruzic, M., Sciban, M., Grubac, B. and Vujic, A., eds. Redbook of Fauna III – Birds. Belgrade: Institute for Nature Conservation of Serbia, University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology and Bird Protection and Study Society of Serbia.Google Scholar
Hagemeijer, E. J. M. and Blair, M. J. (eds). (1997) The EBCC atlas of European breeding birds: Their distribution and abundance. London, UK: T & AD Poyser.Google Scholar
Handrinos, G. I. (1985) The status of vultures in Greece. Pp. 103–115 in Newton, I. and Chancellor, R. D., eds. Conservation studies on raptors. Cambridge, UK: International Council for Bird Preservation.Google Scholar
Handrinos, G. and Akriotis, T. (1997) The birds of Greece. London, UK: Christopher Helm.Google Scholar
IUCN Bangladesh (2016) Vultures and Vulture Safe Zones of Bangladesh. Dhaka, Bangladesh: International Union for Conservation of Nature, Bangladesh Country Office.Google Scholar
Kafetzis, A., Kret, E., Skartsi, T., Vasilakis, D. and Christopoulou, I. (2017) Wind farms in areas of high ornithological value-conflicts, solutions, challenges: The case of Thrace, Greece. Pp. 191–205 in Köppel, J., ed. Wind energy and wildlife interactions. Presentations from the CWW 2015 Conference. Springer.Google Scholar
Kapelj, S. and Modric, M. (2017) Monitoring of Griffon Vulture Gyps fulvus population of Kvarner area in 2017. Larus 52: 74–75.Google Scholar
Keller, V. (2017) Atlases as a tool to document changes in distribution and abundance of birds. Vogelwelt 137: 43–52.Google Scholar
Knape, J. (2016) Decomposing trends in Swedish bird populations using generalized additive mixed models. J. Appl. Ecol. 53: 1852–1861.CrossRefGoogle Scholar
Kret, E., Saravia, V. and Vavylis, D. (2019) Sniffing dogs at the service of vultures - results from the operation of the first anti-poison dog units in the Balkans. Algarve, Portugal: European vulture conference October 2019 poster.Google Scholar
Le Gouar, P., Robert, A., Choisy, J.P., Henriquet, S., Lecuyer, P., Tessier, C. and Sarrazin, F. (2008) Roles of survival and dispersal in reintroduction success of Griffon Vulture (Gyps fulvus). Ecol. Applic. 18: 859–872.CrossRefGoogle Scholar
Lieury, N., Besnard, A., Ponchon, C., Ravayrol, A. and Millon, A. (2016) Geographically isolated but demographically connected: Immigration supports efficient conservation actions in the recovery of a range-margin population of the Bonelli’s eagle in France. Biol. Conserv. 195: 272–278.CrossRefGoogle Scholar
Margalida, A. and Colomer, M. (2012) Modelling the effects of sanitary policies on European vulture conservation. Sci. Rep. 2(753): 10.1038/srep00753.CrossRefGoogle ScholarPubMed
Margalida, A. and Mateo, R. (2019) Illegal killing of birds in Europe continues. Science 363: 1161.CrossRefGoogle ScholarPubMed
Margalida, A., Donázar, J., Carrete, M. and Sánchez-Zapata, J. (2010) Sanitary versus environmental policies: Fitting together two pieces of the puzzle of European vulture conservation. J. Appl. Ecol. 47: 931–935.CrossRefGoogle Scholar
Margalida, A., Jimenez, J., Martínez, J., Sesé, J., García-Ferré, D., Llamas, A., Razin, M., Colomer, M. and Arroyo, B. (2020) An assessment of population size and demographic drivers of the Bearded Vulture using integrated population models. Ecol. Monogr. 90: e01414.CrossRefGoogle Scholar
Margalida, A., Oliva-Vidal, P., Llamas, A. and Colomer, M. (2018) Bioinspired models for assessing the importance of transhumance and transboundary management in the conservation of European avian scavengers. Biol. Conserv. 228: 321–330.CrossRefGoogle Scholar
Marinković, S. (1999) Ekološke osnove zaštite i održavanja beloglavog supa Gyps fulvus (Hablizl, 1783) na Balkanskom poluostrvu. PhD thesis. Biološki fakultet, University of Belgrade, Serbia. (In Serbian).Google Scholar
Marinković, S. and Karadzic, R. (1999) The role of nomadic farming in the distribution of the Griffon Vulture (Gyps fulvus) in the Balkan peninsula. Contributions to the zoogeography and ecology of the Eastern Mediterranean Region. Pp. 141-152 in the 7th International Congress of the Zoogeography and Ecology of Greece and Adjacent Regions.Google Scholar
Marinković, S. and Orlandic, L. (1994) Status of the Griffon Vulture Gyps fulvus in Serbia. Pp. 163–172 in Meyburg, B. U. and Chancellor, R. D., eds. Raptor Conservation Today. Berlin, Germany: The Pica Press.Google Scholar
Marinković, S., Orlandic, L. and Karadzic, B. (2006) The census of Vultures (Aegypiinae) in Herzegovina before the Balkan civil conflict. Pp. 165 in Houston, D. C. and Piper, S. E., eds. Proceedings of the International Conference on Conservation and Management of Vulture Populations. Thessaloniki, Greece: Natural History Museum of Crete & WWF Greece.Google Scholar
Marinković, S., Orlandić, Lj., Skorić, S. and Karadžić, B. (2012) Nest-site preference of Griffon Vulture (Gyps fulvus) in Herzegovina. Arch. Biol. Sci. 64: 385–392.CrossRefGoogle Scholar
Marinković, S., Sušić, G., Grubač, B., Soti, P. and Simonov, N. (1985) The Griffon Vulture in Yugoslavia. Pp. 131–135 in Conservation studies in raptors. Cambridge, UK: International Council for Bird Preservation. (ICBP Technical Publication No. 5).Google Scholar
Marinković, S. (2019) Monitoring of Griffon Vulture in Serbia. Annual report 2019. Belgrade, Serbia: Institute for Biological Research “Siniša Stanković”, University of Belgrade.Google Scholar
Martinez, F., Rodriguez, R. and Blanco, G. (1997) Effects of monitoring frequency on estimates of abundance, age distribution, and productivity of colonial Griffon Vultures. J. Field Ornithol. 68: 392–399.Google Scholar
Mateo-Tomas, P. and Olea, P. P. (2010) Anticipating knowledge to inform species management: Predicting spatially explicit habitat suitability of a colonial vulture spreading its range. PLoS ONE 5: e12374.CrossRefGoogle ScholarPubMed
Mateo-Tomas, P. and Olea, P. P. (2011) The importance of social information in breeding site selection increases with population size in the Eurasian Griffon Vulture Gyps fulvus. Ibis 153: 832–845.CrossRefGoogle Scholar
May, R., Nygård, T., Falkdalen, U., Åström, J., Hamre, Ø. and Stokke, B. (2020) Paint it black: Efficacy of increased wind turbine rotor blade visibility to reduce avian fatalities. Ecol. Evol. 10: 1002/ece3.6592.CrossRefGoogle ScholarPubMed
McClure, Ch. J. W., Westrip, J. R. S., Johnson, J. A., Schulwitz, S. E., Virani, M. Z., Davies, R., Symes, A., Wheatley, H., Thorstrom, R., Amar, A., Buij, R., Jones, V. R., Williams, N. P., Buechley, E. R. and Butchart, S. H. M. (2018) State of the world’s raptors: Distributions, threats, and conservation recommendations. Biol. Conserv. 227: 390–402.CrossRefGoogle Scholar
Mihelič, T and Genero, F. (2005) Occurrence of Griffon Vulture Gyps fulvus in Slovenia in the period from 1980 to 2005. Acrocephalus 26: 73–79.Google Scholar
Morales-Reyes, Z., Pérez-García, J. M., Moleón, M., Botella, F., Carrete, M., Lazcano, C., Moreno-Opo, R., Margalida, A., Donázar, J. A. and Sánchez-Zapata, J. A. (2015) Supplanting ecosystem services provided by scavengers raises greenhouse gas emissions. Sci. Rep. 5: 1–6.CrossRefGoogle ScholarPubMed
Moreno-Opo, R., Trujillano, A., Margalida, A. (2015) Optimization of supplementary feeding programs for European vultures depends on environmental and management factors. Ecosphere 6: 127.CrossRefGoogle Scholar
Newton, I. (2008) The migration ecology of birds. London, UK: Academic Press.Google Scholar
Ntemiri, K., Saravia, V., Angelidis, C., Baxevani, K., Probonas, M., Kret, E., Mertzanis, Y., Iliopoulos, Y., Georgiadis, L., Skartsi, D., Vavylis, D., Manolopoulos, A., Michalopoulou, P. and Xirouchakis, S. (2018) Animal mortality and illegal poison bait use in Greece. Environ. Monit. Assess. 190: 488.CrossRefGoogle Scholar
Ogada, D., Shaw, Ph., Beyers, R., Buij, R., Murn, C., Thiollay, J.M., Beale, C., Holdo, R., Pomeroy, D., Baker, N., Krueger, S., Botha, A., Virani, M., Monadjem, A. and Sinclair, A. (2015) Another Continental Vulture Crisis: Africa’s Vultures Collapsing toward Extinction. Conserv. Lett. 9: 89–97.CrossRefGoogle Scholar
Olea, P. P. and Mateo-Tomas, P. (2009) The role of traditional farming practices in ecosystem conservation: The case of transhumance and vultures. Biol. Conserv. 142: 1844–1853.CrossRefGoogle Scholar
Pannekoek, J. and Van Strien, A. (2005) TRIM 3 manual (TRends and Indices for Monitoring data). The Hague, The Netherlands: Statistics Netherlands.Google Scholar
Pannekoek, J., Bogaart, P. and van der Loo, M. (2018) Models and statistical methods in rtrim. The Hague/Heerlen/Bonaire: Statistics Netherlands.Google Scholar
Pantovic, U. and Andevski, J. (2018) Review of the problem of poison use and vulture poisoning in the Balkan Peninsula. The Netherlands: Vulture Conservation Foundation.Google Scholar
Parra, J. and Telleria, J. L. (2004) The increase in the Spanish population of Griffon Vulture Gyps fulvus during 1989–1999: effects of food and nest site availability. Bird Conserv. Internatn. 14: 33–41.CrossRefGoogle Scholar
Perco, F., Toso, S., Sušić, G., Apollonio, M. (1983) Initial data for a study on the status, distribution and ecology of the Griffon Vulture, Gyps fulvus fulvus (Hablizl, 1783) in the Kvarner Archipelago. Larus 33–35: 99–134.Google Scholar
Peshev, H., Stoynov, E., Grozdanov, A. and Vangelova, N. (2015) Reintroduction of the Griffon Vulture Gyps fulvus in Kresna Gorge, Southwestern Bulgaria 2010–2015. Blagoevgrad, Bulgaria: Fund for Wild Flora and Fauna. (Conservation science Series, Book 3).Google Scholar
Peshev, H., Stoynov, E., Vangelova, N., Georgiev, G., Stoyanov, N. and Grozdanov, A. (2018) Reintroduction of the Griffon Vulture Gyps fulvus in Kresna Gorge of Struma River, Bulgaria, Annual Report 2017. Blagoevgrad, Bulgaria: Fund for Wild Flora and Fauna.Google Scholar
R Core Team (2013) R: A language and environment for statistical computing. Vienna, Austria: R Foundation for Statistical Computing.Google Scholar
Razin, M., Eliotout, B., Orabi, P. and Terrasse, M. (2008) Distribution, population, breeding and conservation of the vulture populations in France. Pp. 136–159 in Donázar, J. A., Margalida, A. and Campion, D., eds. Buitres, muladares y legislacion sanitaria – perspectivas de un conflicto y sus consecuencias desde la biologia de la conservacion. Donostia, Spain: Aranzadi Zientzia Elkartea = Sociedad de Ciencias Aranzadi.Google Scholar
Robertson, M., Cumming, G. and Erasmus, B. (2010) Getting the most out of atlas data: Atlas projects. Divers. Distrib. 16: 363–375.CrossRefGoogle Scholar
Rodrigues, A., Pilgrim, J., Lamoreux, J., Hoffmann, M. and Brooks, T. (2006) The value of the IUCN Red List for conservation. Trends Ecol. Evol. 21: 71–76.CrossRefGoogle ScholarPubMed
Sarrazin, F. and Barbault, R. (1996) Reintroduction: Challenges and lessons for basic ecology. Trends Ecol. Evol. 11: 474–478.CrossRefGoogle ScholarPubMed
Schaub, M., Jakober, H. and Stauber, W. (2013) Strong contribution of immigration to local population regulation: evidence from a migratory passerine. Ecology 94: 1828–1838.CrossRefGoogle ScholarPubMed
Sergio, F. and Newton, I. (2003) Occupancy as a measure of territory quality. J. Anim. Ecol. 72: 857–865.CrossRefGoogle Scholar
Serrano, D., Margalida, A., Pérez-García, J., Juste, J., Traba, J., Varela, F., Carrete, M., Aihartza, J., Real, J., Mañosa, S., Flaquer, C., Garin, I., Morales, M., Alcalde, J., Arroyo, B., Sánchez-Zapata, J., Blanco, G., Negro, J., Tella, J. and Donázar, J. (2020) Renewables in Spain threaten biodiversity. Science 370: 1282–1283.CrossRefGoogle ScholarPubMed
Sidiropoulos, L., Tsiakiris, R., Azmanis, P., Galanaki, A., Stara, K., Kastritis, T., Konstantinou, P., Kret, E., Skartsi, T., Jerrentrup, H., Xirouchakis, S. and Kominos, T. (2013) Status of vultures in Greece. Pp. 20–23 in Andevski, J., ed. Vulture Conservation in the Balkan Peninsula and Adjacent Regions. 10 Years of Vulture Research and Conservation. Action Plan for the Recovery and Conservation of Vultures on the Balkan Peninsula and Adjacent Regions. Skopje, North Macedonia: Vulture Conservation Foundation & Frankfurt Zoological Society.Google Scholar
Skartsi, T. (2019) Vulture status in Evros and Rhodopes, Past, present, and future. P. 14 in Tsiakiris, R. and Pergantis, F., eds. Book of abstracts of the International Workshop on “The Future of Vultures in Balkans: Tackling Threats and Building Network Opportunities”. Messolonghi, Greece.Google Scholar
Skartsi, T., Vasilakis, D. and Elorriaga, J. (2009) Population trends and conservation of vultures in the National Park of Dadia – Lefkimi – Soufli forest. Pp. 183–193 in Catsadorakis, G., ed. The Dadia – Lefkimi – Soufli National Park, Greece: Biodiversity, management and conservation. Athens, Greece: WWF–Hellas.Google Scholar
Slotta-Bachmayr, L., Bogel, R. and Cardenal, A. (2005) The Eurasian Griffon Vulture (Gyps fulvus spp.) in Europe and the Mediterranean. Status report and action plan. Salzburg, Austria: EGVWG.Google Scholar
Stanković, D., Paunović, M. and Rakočević, M. (2019) Atlas migratornih ptica i slepih miševa Srbije . Belgrade, Sebia: Prirodnjački muzej. (In Serbian).Google Scholar
Stara, K, Sidiropoulos, L and Tsiakiris, R. (2016) Bound eagles, evil vultures and cuckoo horses. Preserving the bio-cultural diversity of carrion eating birds. Hum. Ecol. 44: 751-64.CrossRefGoogle Scholar
Steenhof, K. and Newton, I. (2007) Assessing nesting success and productivity. Pp. 181–192 in Bird, D. M and Bildstein, K. L., eds. Raptor research and management techniques. Surrey, Canada: Hancock House.Google Scholar
Stoyanov, G. (2010) Fruhere und jetzige Verbreitung des Gansegeiers Gyps fulvus in West–Bulgarien. Teil.1. Ornithol. Mitt. 7: 235–239.Google Scholar
Stoyanov, G., Peshev, H., Kmetova-Biro, E., Opramolla, G., Casado, C., Posillico, M., Licheva, V. and Stoynov, E. (2020) Observation in Bulgaria of a Griffon Vulture Gyps fulvus tagged in Spain. Ringing Migr. 34: 1–3.Google Scholar
Stoynov, E., Grozdanov, A., Stanchev, S., Peshev, H., Vangelova, N. and Peshev, D. (2014) How to avoid depredation on livestock by wolf – theories and tests. Bulg. J. Agric. Sci. 20 (Supplement 1): 129–134.Google Scholar
Stoynov, E., Kmetova-Biro, E., Stoyanov, G., Peshev, H., Ivanov, I., Stoev, I., Bonchev, L., Vangelova, N., Nikolova, Z., Yankov, L., Parvanov, D. and Grozdanov, A. (2018a) Population boost of the Griffon Vulture Gyps fulvus (Hablizl, 1783) (Accipitridae) in Bulgaria based on reintroductions. Acta Zool. Bulg. Suppl. 12: 59–65.Google Scholar
Stoynov, E., Peshev, H. and Grozdanov, A. (2018b) Early warning system for wildlife poisoning, using intensive GPS tracked vultures as detectives. Blagoevgrad, Bulgaria: Fund for Wild Flora and Fauna.Google Scholar
Stoynov, E., Vangelova, N., Zlatanova, D., Peshev, H., Grozdanov, A., Wilpstra, H., Parvanov, D. and Delov, V. (2015) Is the wolf presence beneficial for vultures in Europe? DOI: 10.13140/RG.2.1.2184.3685.CrossRefGoogle Scholar
Stoynov, E. (2019) Reintroduction of the Griffon Vulture (Gyps fulvus) in model territories in Bulgaria (in Bulgarian). PhD thesis Emilian Stoynov, Sofia University, Bulgaria. DOI 10.13140/RG.2.2.18269.67043. (In Bulgarian with English summary)Google Scholar
Sušić, G. (2000) Regular long-distance migration of Eurasian Griffon Gyps fulvus. Pp. 225–230 in Chancellor, R. D. and Meyburg, B.-U., eds. Raptors at risk. Berlin, Germany: WWGBP/Hancock House.Google Scholar
Sušić, G. (2013) Eurasian Griffon, Gyps fulvus. Pp. 70–72 in Kralj, J., Barišić, S., Tutiš, V., and Čiković, D., eds. Croatian Bird Migration Atlas. Zagreb, Croatia: HAZU.Google Scholar
Sutherland, W. (2000) The conservation handbook: research, management and policy. Oxford, UK: Blackwell Science.CrossRefGoogle Scholar
Sutherland, W. (2006) Ecological census techniques. A handbook. 2nd edition. New York: Cambridge University Press.CrossRefGoogle Scholar
Tsiakiris, R. and Pergantis, F. (eds) (2019) Book of abstracts of the International Workshop on “The Future of Vultures in Balkans: Tackling threats and building network opportunities”, Messolonghi, Greece.Google Scholar
Tsiakiris, R., Sidiropoulos, L., Vasilakis, D., Stara, K., Peshev, H. and Stoynov, E. (2018) Greek and Yemens cultural landscapes through the eyes of a Griffon Vulture. Herakleo, Greece: Helekos congress, Book of Abstracts.Google Scholar
Van Beest, F., Van Den Bremer, L., De Boer, W., Heitkönig, I. and Monteiro, A. (2008) Population dynamics and spatial distribution of Griffon Vultures (Gyps fulvus) in Portugal. Bird Conserv. Internatn. 18: 102–117.CrossRefGoogle Scholar
Vasilakis, D., Whitfield, P., Schindler, S., Poirazidis, K. and Kati, V. (2016) Reconciling endangered species conservation with wind farm development: Cinereous vultures (Aegypius monachus) in south-eastern Europe. Biol. Conserv. 196: 10–17.CrossRefGoogle Scholar
Vasilakis, D. P., Whitfield, D. P. and Kati, V. (2017) A balanced solution to the cumulative threat of industrialized wind farm development on Cinereous Vultures (Aegypius monachus) in south-eastern Europe. Plos One 12: e0172685.CrossRefGoogle Scholar
Xirouchakis, S. and Tsiakiris, R. (2009) Situacion y tendencias poblacionales de los buitres en Grecia/Status and population trends of vultures in Greece. Pp. 155–165 in Donázar, J. A., Margalida, A. and Campión, D., eds. Buitres, muladares y legislacion sanitaria – perspectivas de un conflicto y sus consecuencias desde la biologia de la conservacion. Donostia, Spain: Aranzadi Zientzia Elkartea = Sociedad de Ciencias Aranzadi.Google Scholar
Xirouchakis, S. (2019) The Cretan vulture Paradise: an overview. P. 18 in Tsiakiris, R. and Pergantis, F., eds. Book of Abstracts of the International Workshop on “The Future of Vultures in Balkans: Tackling Threats and Building Network Opportunities”. Messolonghi, Greece.Google Scholar
Zakkak, S., Babakas, P., Chalivelentzios, A., Tziambazis, I. and Basianioti, E. (2015) Annual report of the monitoring of species and habitat types of European conservation concern- Period 2015. Dadia, Greece: Management Body of Dadia-Lefkimi-Soufli Forest National Park.Google Scholar
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