| Global COVID-19 lockdown highlights humans as both threats and custodians of the environment AE Bates, RB Primack, BS Biggar, TJ Bird, ME Clinton, RJ Command, ... Biological conservation 263, 109175, 2021 | 158 | 2021 |
| High juvenile mortality during migration in a declining population of a long‐distance migratory raptor S Oppel, V Dobrev, V Arkumarev, V Saravia, A Bounas, E Kret, M Velevski, ... Ibis 157 (3), 545-557, 2015 | 140 | 2015 |
| Spatial and temporal variability in migration of a soaring raptor across three continents WL Phipps, P López-López, ER Buechley, S Oppel, E Álvarez, ... Frontiers in Ecology and Evolution 7, 323, 2019 | 75 | 2019 |
| Population decline and range contraction of the Egyptian Vulture Neophron percnopterus in the Balkan Peninsula M Velevski, SC Nikolov, B Hallmann, V Dobrev, L Sidiropoulos, V Saravia, ... Bird Conservation International 24 (4), 11, 2014 | 66 | 2014 |
| Differential survival throughout the full annual cycle of a migratory bird presents a life‐history trade‐off ER Buechley, S Oppel, R Efrat, WL Phipps, I Carbonell Alanís, E Álvarez, ... Journal of Animal Ecology 90 (5), 1228-1238, 2021 | 62 | 2021 |
| Congregations of wintering Egyptian Vultures Neophron percnopterus in Afar, Ethiopia: present status and implications for conservation V Arkumarev, V Dobrev, YD Abebe, G Popgeorgiev, SC Nikolov Ostrich: Journal of African Ornithology 85 (2), 139–145, 2014 | 53 | 2014 |
| Identifying critical migratory bottlenecks and high‐use areas for an endangered migratory soaring bird across three continents ER Buechley, S Oppel, WS Beatty, SC Nikolov, V Dobrev, V Arkumarev, ... Journal of Avian Biology 49 (7), e01629, 2018 | 46 | 2018 |
| Assessing the effectiveness of intensive conservation actions: Does guarding and feeding increase productivity and survival of Egyptian Vultures in the Balkans? S Oppel, V Dobrev, V Arkumarev, V Saravia, A Bounas, E Kret, T Skartsi, ... Biological Conservation 198, 157-164, 2016 | 39 | 2016 |
| Major threats to a migratory raptor vary geographically along the eastern Mediterranean flyway S Oppel, V Arkumarev, S Bakari, V Dobrev, V Saravia-Mullin, S Adefolu, ... Biological Conservation 262, 109277, 2021 | 30 | 2021 |
| Diet is not related to productivity but to territory occupancy in a declining population of Egyptian Vultures Neophron percnopterus V Dobrev, Z Boev, V Arkumarev, D Dobrev, E Kret, V Saravia, A Bounas, ... Bird Conservation International 26 (3), 273-285, 2016 | 29 | 2016 |
| Effects of the Common Agricultural Policy on the coverage of grassland habitats in Besaparski ridove special protection area (Natura 2000), Southern Bulgaria V Dobrev, G Popgeorgiev, D Plachiyski Acta zoologica bulgarica, 147-155, 2014 | 28 | 2014 |
| Landscape factors affecting territory occupancy and breeding success of Egyptian Vultures on the Balkan Peninsula S Oppel, V Dobrev, V Arkumarev, V Saravia, A Bounas, A Manolopoulos, ... Journal of Ornithology 158, 443-457, 2017 | 26 | 2017 |
| Effects of habitat change on territory occupancy, breeding density and breeding success of Long-legged Buzzard (Buteo rufinus Cretzschmar, 1927) in Besaparski Ridove Special … D Demerdzhiev, V Dobrev, G Popgeorgiev Acta zoologica bulgarica 5, 191-200, 2014 | 22 | 2014 |
| Population reinforcement and demographic changes needed to stabilise the population of a migratory vulture S Oppel, V Saravia, A Bounas, V Arkumarev, E Kret, V Dobrev, D Dobrev, ... Journal of Applied Ecology 58 (12), 2711-2721, 2021 | 20 | 2021 |
| Long-term size and range changes of the Griffon Vulture Gyps fulvus population in the Balkans: a review D Dobrev, R Tsiakiris, T Skartsi, V Dobrev, V Arkumarev, K Stara, ... Bird Conservation International 32 (2), 206-221, 2022 | 17 | 2022 |
| Breeding performance and population trend of the Egyptian Vulture Neophron percnopterus in Bulgaria: conservation implications V Arkumarev, V Dobrev, S Stoychev, D Dobrev, D Demerdzhiev, ... Ornis Fennica 95 (3), 115–127-115–127, 2018 | 15 | 2018 |
| Assessment of mortality causes for the Egyptian Vulture (Neophron percnopterus) in Bulgaria and Greece (1997-2015) V Saravia, E Kret, V Dobrev, SC Nikolov Fact sheet under action A1 of the LIFE+ project “The Return of the Neophron …, 2016 | 15 | 2016 |
| Egyptian vulture Neophron percnopterus S Oppel, ER Buechley, P López-López, L Phipps, V Arkumarev, A Bounas, ... Migration strategies of birds of prey in Western palearctic, 22-34, 2021 | 13 | 2021 |
| Natal dispersal in Black Kites Milvus migrans migrans in Europe S Ovčiariková, J ©krábal, H Matuąík, K Makoň, J Mráz, V Arkumarev, ... Journal of Ornithology 161, 935-951, 2020 | 12 | 2020 |
| Assessment of the illegal use of poison in the Egyptian Vulture project sites in Greece and Bulgaria for the period 2003–2012 T Skartsi, V Dobrev, S Oppel, A Kafetzis, E Kret, R Karampatsa, V Saravia, ... WWF Greece, Athens 77, 2014 | 12 | 2014 |
Stoyan C. NikolovBSPB / BirdLife BulgariaE-mail megerősítve itt: bspb.org
