Ivory poaching and the rapid evolution of tusklessness in African elephants
Autor: | Brian J. Arnold, Robert M. Pringle, Joyce H. Poole, Petter Granli, Dominique D. Gonçalves, Ryan A. Long, Shane C. Campbell-Staton |
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Rok vydání: | 2021 |
Předmět: | |
Zdroj: | Science. 374:483-487 |
ISSN: | 1095-9203 0036-8075 |
Popis: | Lose the tusks Harvest and poaching of wildlife have increased as the human population and our technology have grown. These pressures now occur on such a scale that they can be considered selective drivers. Campbell-Staton et al . show that this phenomenon has occurred in African elephants, which are poached for their ivory, during the 20-year Mozambican civil war (see the Perspective by Darimont and Pelletier). In response to heavy poaching by armed forces, African elephant populations in Gorongosa National Park declined by 90%. As the population recovered after the war, a relatively large proportion of females were born tuskless. Further exploration revealed this trait to be sex linked and related to specific genes that generated a tuskless phenotype more likely to survive in the face of poaching. —SNV |
Databáze: | OpenAIRE |
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