A systematic review of trace elements in the tissues of bats (Chiroptera).

Autor: Giunta F; Department of Biology, Clarkson University, 8 Clarkson Avenue, 13699, otsdam, NY, USA., Hernout BV; Department of Biology, Clarkson University, 8 Clarkson Avenue, 13699, otsdam, NY, USA; Institute for a Sustainable Environment, Clarkson University, 8 Clarkson Avenue, 13699, Potsdam, NY, USA; Exponent Inc, 1075 Worcester St, Natick, MA, 01760, USA., Langen TA; Department of Biology, Clarkson University, 8 Clarkson Avenue, 13699, otsdam, NY, USA., Twiss MR; Department of Biology, Clarkson University, 8 Clarkson Avenue, 13699, otsdam, NY, USA; Faculty of Science, Algoma University, 1520 Queen Street East, Sault Ste. Marie, Ontario, P6A 2G4, Canada. Electronic address: michael.twiss@algomau.ca.
Jazyk: angličtina
Zdroj: Environmental pollution (Barking, Essex : 1987) [Environ Pollut] 2024 Sep 01; Vol. 356, pp. 124349. Date of Electronic Publication: 2024 Jun 10.
DOI: 10.1016/j.envpol.2024.124349
Abstrakt: Bats constitute about 22% of known mammal species; they have various ecological roles and provide many ecosystem services. Bats suffer from several threats caused by anthropization, including exposure to toxic metals and metalloids. We analyzed 75 papers in a systematic literature review to investigate how species, diet, and tissue type impact bioaccumulation. Most studies documented element accumulation in fur, liver, and kidney; at least 36 metals and metalloids have been measured in bat tissues, among the most studied were mercury and zinc. Comparisons with known toxicological thresholds for other mammals showed concerning values for mercury and zinc in bat hair, lead and some essential metals in liver, and iron and calcium in kidneys. Moreover, accumulation patterns in tissues differed depending on bat diet: insectivorous bats showed higher metal concentrations in fur than in liver and kidney while frugivorous species showed higher values in liver and kidney than in fur. Finally, among the bat species that have been studied in more than two papers, the big brown bat (Eptesicus fuscus) show values of mercury in hair and copper in liver that exceed the known thresholds; as does copper in the liver of the little brown bat (Myotis lucifugus). Most studies have been conducted in temperate North America and Eurasia, areas with the lowest bat species diversity; there is a paucity of data on tropical bat species. This review points out several information gaps in the understanding of metal contamination in bats, including a lack of measured toxicity thresholds specific for bat tissues. Data on trace element bioaccumulation and its associated health effects on bats is important for conservation of bat species, many of which are threatened.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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