Metal Concentrations in Eurasian Eagle Owl Pellets as a Function of Reproductive Variables in Korea

• Published in: Archives of environmental contamination and toxicology Vol. 74; no. 2; pp. 298 - 304
• Main Authors: Shin, Dong-Man, Oh, Jong-Min, Kim, Jungsoo
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.02.2018; Springer Nature B.V
• Subjects: Aluminum; Animals; Birds; Breeding; Breeding success; Cadmium; Clutch Size; Earth and Environmental Science; Ecotoxicology; Environment; Environmental Chemistry; Environmental Exposure - analysis; Environmental Health; Environmental Pollutants - analysis; Feces - chemistry; Food contamination; Food supply; Heavy metals; Juveniles; Lead; Lead - analysis; Lead content; Mathematical analysis; Metal concentrations; Metals; Metals - analysis; Monitoring/Environmental Analysis; Nesting; Pellets; Pollution; Reproduction; Reptiles & amphibians; Republic of Korea; Soil Science & Conservation; Strigiformes - physiology; Success; Variance analysis
• ISSN: 0090-4341; 1432-0703
• DOI: 10.1007/s00244-017-0457-y

Eight metals were analyzed in the pellet of Eurasian eagle owls ( Bubo bubo ) breeding in Korea: Paju, Ganghwa, Gimpo, and Sihwa, Gyeonggi-do ( N  = 15, respectively). Except for cadmium (Cd), concentrations of all metals differed among sites (ANOVA, p  < 0.001); Sihwa had relatively higher metal concentrations compared with other sites. Clutch size did not differ among the four sites. However, Sihwa had the greatest nesting success and number of fledglings (per hatchlings and laid egg) and highest mean weight of diet. Lead concentrations in the pellets were generally lower than the excrements of various birds worldwide. We suggest that all metal concentrations in pellets do not negatively affect the reproduction of Eurasian eagle owls, and food supply at Sihwa seems likely more important to breeding success than metal contamination.