Affiliation:
1. Department of Veterinary Public Health, Agricultural University of Tirana, Albania
2. Department of Biology, Faculty of Natural Sciences, University of Tirana, Albani
3. AOS Albania (Albanian Ornithology Society)
4. Balkan Anti-poisoning Project, Serbia
5. Vultures Conservation Foundation, Switzerland
Abstract
Raptors are large carnivorous birds, most well known for their scavenging nature. This study evaluates the level of exposure to toxins in raptors and vultures in Albania to assess whether existing legislation and regulations are effectively protecting vultures and other wildlife in Albania. During 2014-2018, at the Wildlife Animals Laboratory, Agriculture University of Tirana, Albania, 35 birds (Circaetus gallicus, Gyps fulvus, Gypaetus barbatus) were tested for exposure to toxins. The results indicated elevated blood lead levels in 65.7% of sampled raptors, while in 17.1% there was evidence of exposure to the non-steroidal anti-inflammatory drug (NSAID) diclofenac, based on visceral gout and the presence of cases with high serum uric acid concentration. Other injuries were found in 17.1% of raptors, with the most frequent being physical damage, traumatic injuries, or fractures caused by farmers, shooting, electric burn injuries from electrocution, injuries from collisions, etc. The results suggest that lead poisoning in raptors could be one of the main reasons for the observed declines in vulture populations in Albania. Furthermore, the apparent evidence for exposure to NSAIDs is concerning and requires further investigation.
Reference33 articles.
1. Anonymous, 2016. Continuous violation of the Hunting Moratorium in Albania https://mio-ecsde.org/continuous-violation-of-the-hunting-moratorium-in-albania (18 October 2021 date last accessed).
2. Arrondo E., J. M. N. J. Perez-García, R. Mateo, P. R. Camarero, R. C. R. Martin-Doimeadios, M. Jiménez-Moreno, A. Cortés-Avizanda, I. Navash, A. J. García-Fernández, J. A. Sánchez-Zapata & J. Antonio Donázar, 2020. Stable isotopes and GPS tracking disentangle lead sources for a large avian scavenger. Environmental Pollution, 266, part 3, 115022.
3. Bates, F. Y., D. M. Barnes & J. M. Higbee, 1968. Lead toxicosis in mallard ducks. Journal of Wildlife Diseases, 4, 116–125.
4. Bennett, J. R., C. A. Kaufman, I. Koch, J. Sova & K. J. Reimer, 2007. Ecological risk assessment of lead contamination at rifle and pistol ranges using techniques to account for site characteristics. Science of the Total Environment, 374, 91–101.
5. Buechley, H. & H. C. Şekercioğlu, 2016. The avian scavenger crisis: Looming extinctions, trophic cascades, and loss of critical ecosystem functions. Biological Conservation, 198, 220–228.