| In situ assessment of health status and heavy metal bioaccumulation of adult Pelophylax ridibundus (Anura: Ranidae) individuals inhabiting polluted area in southern Bulgaria ZM Zhelev, DN Arnaudova, GS Popgeorgiev, SV Tsonev Ecological Indicators 115, 106413, 2020 | 40 | 2020 |
| Investigating the changes in the morphological content of the blood of Pelophylax ridibundus (Amphibia: Ranidae) as a result of anthropogenic pollution and its use as an … ZM Zhelev, GS Popgeorgiev, MV Angelov Acta Zoologica Bulgarica 65 (2), 187-196, 2013 | 39 | 2013 |
| COLOUR POLYMORPHISM, SEX RATIO AND AGE STRUCTURE IN THE POPULATIONS OF PELOPHYLAX RIDIBUNDUS AND PSEUDEPIDALEA VIRIDIS (AMPHIBIA: ANURA) FROM ANTHROPOGENICALLY POLLUTED … Z Zhelev, A Arnaudov, P Boyadzhiev Trakia Journal of Sciences 12 (1), 1-12, 2014 | 32 | 2014 |
| Changes in the Hepatosomatic Index and Condition Factor in the populations of Pelophylax ridibundus (Amphibia: Ranidae) from anthropogenically polluted biotopes in southern … ZM Zhelev, GS Popgeorgiev, NH Mehterov Bulgarian Journal of Agricultural Science 21 (3), 534-539, 2015 | 30 | 2015 |
| Fluctuating asymmetry in Pelophylax ridibundus (Amphibia: Ranidae) as a response to anthropogenic pollution in South Bulgaria ZM Zhelev, GS Popgeorgiev, AD Arnaudov, KN Georgieva, NH Mehterov Archives of Biological Sciences 67 (3), 1009-1023, 2015 | 26 | 2015 |
| A study of some metric parameters of the erythrocytes in Rana ridibunda (Amphibia: Anura) derived from an area of highly developed chemical industry ZM Zhelev, MV Angelov, IA Mollov Acta zoologica bulgarica 58 (2), 235-244, 2006 | 26 | 2006 |
| Health status of Pelophylax ridibundus (Amphibia: Ranidae) in a rice paddy ecosystem in Southern Bulgaria and its importance in assessing environmental state … Z Zhelev, S Tsonev, K Georgieva, D Arnaudova Environmental Science and Pollution Research 25, 7884-7895, 2018 | 25 | 2018 |
| Health Status of Pelophylax ridibundus (Pallas, 1771) (Amphibia: Ranidae) in a Rice Paddy Ecosystem in Southern Bulgaria: Body Condition Factor and Fluctuating Asymmetry Zhelev Zhivko M, Tsonev Stefan V ACTA ZOOLOGICA BULGARICA 69 (2 (Suplementum 8)), 169-176, 2017 | 25* | 2017 |
| Fluctuating asymmetry in Pelophylax ridibundus meristic morphological traits and their importance in assessing environmental health ZM Zhelev, SV Tsonev, MV Angelov Ecological indicators 107, 105589, 2019 | 24 | 2019 |
| Fluctuating asymmetry in the populations of Pelophylax ridibundus and Pseudepidalea viridis (Amphibia: Anura) in the region of the lead and zinc plant “Kardzhali”(South Bulgaria) ZM Zhelev, GS Popgeorgiev, ZK Georgieva Acta Zoologica Bulgarica 66 (1), 83-87, 2014 | 21 | 2014 |
| MORPHOLOGICAL AND HEMATOLOGICAL PARAMETERS OF CARASSIUS GIBELIO (PISCES: GYPRINIDAE) IN CONDITIONS OF ANTHROPOGENIC POLLUTION IN SOUTHERN BULGARIA. USE OF HEMATOLOGICAL … ZM Zhelev, DG Mollova, PS Boyadziev Trakia Journal of Sciences 14 (1), 1-15, 2016 | 18 | 2016 |
| Haematological parameters of Pelophylax ridibundus (Amphibia: Ranidae) from the region of the lead and zinc plant “Kardzhali”(south Bulgaria) and their use in the environmental … ZM Zhelev, GS Popgeorgiev, NH Mehterov Acta zoologica bulgarica 67 (2), 271-282, 2015 | 16 | 2015 |
| Assessment of ecological status of two rivers with different types of anthropogenic pollution in Southern Bulgaria based on the level of fluctuating asymmetry in the … ZM Zhelev, AD Arnaudov, GS Popgeorgiev, HA Dimitrov Acta Zoologica Bulgarica 4, 225-231, 2012 | 16 | 2012 |
| Changes of erythrocyte-metric parameters in Pelophylax ridibundus (Amphibia: Anura: Ranidae) inhabiting water bodies with different types of anthropogenic … Z Zhelev, G Popgeorgiev, I Ivanov, P Boyadzhiev Environmental Science and Pollution Research 24, 17920-17934, 2017 | 14 | 2017 |
| Seasonal changes of basic erythrocyte-metric parameters in Pelophylaxridibundus (Amphibia: Ranidae) from anthropogenically polluted biotopes in Southern Bulgaria and their role … ZM Zhelev, NH Mehterov, GS Popgeorgiev Ecotoxicology and environmental safety 124, 406-417, 2016 | 14 | 2016 |
| Биоиндикационная оценка состояния двух биотопов в Южной Болгарии на основании флуктуирующей асимметрии и фенетического состава популяций озерной лягушки Rana ridibunda и … ЖМ Желев Перспективы науки 7 (22), 7-18, 2011 | 14 | 2011 |
| Ecological status of the river Sazliyka and its tributaries (Southern Bulgaria) as indicated by developmental stability of Pelophylax ridibundus (Amphibia: Ranidae) ZM Zhelev, GS Popgeorgiev, ZK Georgieva Acta Zool. Bulg 65 (3), 371-380, 2013 | 13 | 2013 |
| Investigation on the blood differential formula in Rana ridibunda (Anura, Amphibia) from the Area of the Maritsa–Iztok 1 Steam Power Plant ZM Zhelev Acta Zool. Bulg 59 (2), 181-190, 2007 | 13 | 2007 |
| Changes in the basic morphophysiological parameters in the populations of Pelophylax ridibundus (Amphibia: Ranidae) from anthropogenically polluted biotopes in southern … ZM Zhelev, GS Popgeorgiev, N Mehterov Bulgarian Journal of Agricultural Science 20 (5), 1202-1210, 2014 | 11 | 2014 |
| Using of fluctuating asymmetry in adult Pelophylax ridibundus (Amphibia: Anura: Ranidae) meristic traits as a method for assessing developmental stability of populationand … Z Zhelev, S Tsonev, P Boyadzhiev Turkish Journal of Zoology 46 (2), 220-227, 2022 | 9 | 2022 |
