Bioaccumulation of metals and effects of a landfill in small mammals. Part II. The wood mouse, Apodemus sylvaticus.
We assess the bioaccumulation of metals (Pb, Hg, Cd, Fe, Mg, Zn, Cu, Mn, Mo, Cr) and effects of landfill leachates on morphological (RI, relative weights), plasma (GPT, GOT, creatinine), and genotoxic (MNT) parameters in wood mice, Apodemus sylvaticus, inhabiting close the Garraf landfill site (NE Spain). Due to the high age- and sex-dependent variation in wild populations, we also studied the effect of these biotic factors on the parameters studied. Wood mice from the landfill site, sited in a partially protected area, showed more Cd, Fe, Zn, Cu, Mn, Mo, and Cr than specimens from the reference site. Moreover, mice near the landfill registered low RI and high relative renal weight, GPT, and MN frequency, which indicate that the landfill affects the health of wild mice. In contrast to sympatric shrews from a previous study, wood mice showed lower bioaccumulation of metals and lower variation caused by biotic factors. Moreover, the morphological and physiological alterations demonstrated that they were also more sensitive at environmental pollution. Given the contribution of small mammals to ecosystem function and the scarce ecotoxicological data on the effects of landfill pollution on wild terrestrial mammals, we consider that our study can be used to improve the management of this protected area.
Servei de Microscopia, Facultat de Ciències, Edifici C, Campus de la Universitat Autònoma de Barcelona, Bellaterra, Spain. Alejandro.Sanchez.Chardi@uab.es
Alejandro
A
Sánchez-Chardi
Cristina
C
Peñarroja-Matutano
Ciro Alberto Oliveira
CA
Ribeiro
Jacint
J
Nadal
D000818:Animals; D015415:Biomarkers; D001835:Body Weight / Q000187:drug effects; D005260:Female; D008111:Liver Function Tests; D008297:Male; D019216:Metals, Heavy / Q000378:metabolism* / Q000633:toxicity; D015162:Micronucleus Tests; D051189:Murinae / Q000502:physiology*; D009152:Mutagenicity Tests; D009153:Mutagens / Q000378:metabolism / Q000633:toxicity; D009929:Organ Size / Q000187:drug effects; D012037:Refuse Disposal; D012788:Shrews; D013030:Spain; D014018:Tissue Distribution; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000378:metabolism*
D015415:Biomarkers; D019216:Metals, Heavy; D009153:Mutagens; D014874:Water Pollutants, Chemical