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X Demographics
Mendeley readers
| Title |
Mercury content in the fur of jaguars (Panthera onca) from two areas under different levels of gold mining impact in the Brazilian Pantanal
|
|---|---|
| Published in |
Anais da Academia Brasileira de Ciências, August 2018
|
| DOI | 10.1590/0001-3765201720170190 |
| Pubmed ID | |
| Authors |
Joares A May Júnior, Howard Quigley, Rafael Hoogesteijn, Fernando R Tortato, Allison Devlin, Rui M DE Carvalho Júnior, Ronaldo G Morato, Leonardo R Sartorello, Lilian E Rampim, Mario Haberfeld, Rogério C DE Paula, Jairo José Zocche |
| Abstract |
The Pantanal is the largest inland wetland in the world and is under increasing anthropogenic threats, including long-term regionally intensive gold mining practices. Gold mining activities are known to cause the release of harmful pollutants such as mercury (Hg) to the surrounding environment. Jaguars (Panthera onca (Linnaeus, 1758)) are apex predators, and therefore show great potential to accumulate Hg by biomagnification. We hypothesize that total Hg content in the fur of jaguars from two sites within the Brazilian Pantanal would be significantly different as a function of distance from active gold mining operations. The Hg content was determined by fluorescence spectrometry. The mean ± SD Hg content in jaguars from the study site influenced by gold mining (SB) was compared to jaguars sampled in the area free of gold mining activities (CA) using a one-way ANOVA. The mean Hg content in jaguars from SB (673.0 ± 916.8 µg g-1) is significantly different from jaguars sampled in CA (29.7 ± 23.3 µg g-1), p = 0.03. The maximum recorded content of Hg was 2,010.4 ± 150.5 µg g-1, highest level ever recorded in a wild animal. The data indicate that Hg is an important threat to jaguars within at-risk regions of the Pantanal. |
X Demographics
The data shown below were collected from the profiles of 15 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Brazil | 3 | 20% |
| Colombia | 2 | 13% |
| Paraguay | 1 | 7% |
| Spain | 1 | 7% |
| United States | 1 | 7% |
| United Kingdom | 1 | 7% |
| Portugal | 1 | 7% |
| Unknown | 5 | 33% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 10 | 67% |
| Scientists | 4 | 27% |
| Science communicators (journalists, bloggers, editors) | 1 | 7% |
Mendeley readers
The data shown below were compiled from readership statistics for 96 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 96 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Bachelor | 14 | 15% |
| Researcher | 11 | 11% |
| Student > Master | 10 | 10% |
| Student > Ph. D. Student | 10 | 10% |
| Student > Doctoral Student | 8 | 8% |
| Other | 17 | 18% |
| Unknown | 26 | 27% |
| Readers by discipline | Count | As % |
|---|---|---|
| Environmental Science | 23 | 24% |
| Agricultural and Biological Sciences | 22 | 23% |
| Veterinary Science and Veterinary Medicine | 6 | 6% |
| Computer Science | 3 | 3% |
| Biochemistry, Genetics and Molecular Biology | 3 | 3% |
| Other | 9 | 9% |
| Unknown | 30 | 31% |