TY - JOUR
T1 - A multidisciplinary approach to the evaluation of the effects of foraging on landfills on white stork nestlings
AU - Pineda-Pampliega, Javier
AU - Ramiro, Yolanda
AU - Herrera-Dueñas, Amparo
AU - Martinez-Haro, Monica
AU - Hernández, José Manuel
AU - Aguirre, José I.
AU - Höfle, Ursula
N1 - Funding Information:
This work was partly supported by grant RTA2011-00111_C03-02 financed by the Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA). We thank Pablo Camarero for his help during laboratory analysis with the HPLC. J.P.P was funded by a grant from the Complutense University of Madrid ( CT45/15-CT46/15 ). MMH is currently funded by Junta de Comunidades de Castilla-La Mancha and the European Regional Development Fund ( SBPLY/17/180501/000514 ). This paper is a contribution of J.I.A to project CGL2017-85637-P of the Spanish Ministry of Economy and Competitiveness .
Funding Information:
This work was partly supported by grant RTA2011-00111_C03-02 financed by the Instituto Nacional de Investigaci?n y Tecnolog?a Agraria y Alimentaria (INIA). We thank Pablo Camarero for his help during laboratory analysis with the HPLC. J.P.P was funded by a grant from the Complutense University of Madrid (CT45/15-CT46/15). MMH is currently funded by Junta de Comunidades de Castilla-La Mancha and the European Regional Development Fund (SBPLY/17/180501/000514). This paper is a contribution of J.I.A to project CGL2017-85637-P of the Spanish Ministry of Economy and Competitiveness.
Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021/6/25
Y1 - 2021/6/25
N2 - The use of landfills as foraging areas by white storks (Ciconia ciconia) is a recent well-known behaviour. While several studies have highlighted positive effects at a populational level others suggest that the presence of pollutants, pathogens and the lower presence of antioxidants in the food could pose a health risk for individuals. The objective of this study was to evaluate potential effects of the use of landfills as a food resource on the physiology and health of white stork nestlings, by a multidisciplinary approach based on the analysis of nutritional status, body condition, blood parameters, oxidative stress balance and the presence of pathogens. Results showed better body condition in individuals associated with landfills compared to the ones feeding on natural resources, as well as better nutritional status, as indicated by higher levels of albumin, cholesterol, and triglycerides in plasma. As many pollutants have a pro-oxidant effect, we evaluated oxidative stress balance, with no differences in the indicators of damage except for methaemoglobin (metHb), significantly higher in nestlings associated with landfill-origin food. Regarding antioxidants, GSH was higher in nestlings associated with landfills, which may suggest a hormetic response induced potentially by the presence of pollutants in waste. Nestlings fed food from landfills also had a higher presence of Escherichia coli with a multiresistant phenotype to antibiotics. In conclusion, our results show that nestlings fed with a higher proportion of food from landfills present a better nutritional status and body condition than those fed with a higher proportion of natural diet, being the only indicators of negative effects of the use of this food resource the higher percentage of metHb in the peripheral blood and the presence of antibiotic-resistant E. coli.
AB - The use of landfills as foraging areas by white storks (Ciconia ciconia) is a recent well-known behaviour. While several studies have highlighted positive effects at a populational level others suggest that the presence of pollutants, pathogens and the lower presence of antioxidants in the food could pose a health risk for individuals. The objective of this study was to evaluate potential effects of the use of landfills as a food resource on the physiology and health of white stork nestlings, by a multidisciplinary approach based on the analysis of nutritional status, body condition, blood parameters, oxidative stress balance and the presence of pathogens. Results showed better body condition in individuals associated with landfills compared to the ones feeding on natural resources, as well as better nutritional status, as indicated by higher levels of albumin, cholesterol, and triglycerides in plasma. As many pollutants have a pro-oxidant effect, we evaluated oxidative stress balance, with no differences in the indicators of damage except for methaemoglobin (metHb), significantly higher in nestlings associated with landfill-origin food. Regarding antioxidants, GSH was higher in nestlings associated with landfills, which may suggest a hormetic response induced potentially by the presence of pollutants in waste. Nestlings fed food from landfills also had a higher presence of Escherichia coli with a multiresistant phenotype to antibiotics. In conclusion, our results show that nestlings fed with a higher proportion of food from landfills present a better nutritional status and body condition than those fed with a higher proportion of natural diet, being the only indicators of negative effects of the use of this food resource the higher percentage of metHb in the peripheral blood and the presence of antibiotic-resistant E. coli.
KW - Blood chemistry
KW - Landfills
KW - Methaemoglobin
KW - Multiresistant to antibiotics
KW - Nutritional status
KW - Oxidative stress balance
UR - https://www.scopus.com/pages/publications/85101157068
U2 - 10.1016/j.scitotenv.2021.145197
DO - 10.1016/j.scitotenv.2021.145197
M3 - Article
C2 - 33631567
AN - SCOPUS:85101157068
SN - 0048-9697
VL - 775
JO - Science of the Total Environment
JF - Science of the Total Environment
M1 - 145197
ER -