Human impacts on global freshwater fish biodiversity.
Science
; 371(6531): 835-838, 2021 02 19.
Article
en En
| MEDLINE
| ID: mdl-33602854
ABSTRACT
Freshwater fish represent one-fourth of the world's vertebrates and provide irreplaceable goods and services but are increasingly affected by human activities. A new index, Cumulative Change in Biodiversity Facets, revealed marked changes in biodiversity in >50% of the world's rivers covering >40% of the world's continental surface and >37% of the world's river length, whereas <14% of the world's surface and river length remain least impacted. Present-day rivers are more similar to each other and have more fish species with more diverse morphologies and longer evolutionary legacies. In temperate rivers, where the impact has been greatest, biodiversity changes were primarily due to river fragmentation and introduction of non-native species.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Biodiversidad
/
Ríos
/
Peces
/
Actividades Humanas
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Science
Año:
2021
Tipo del documento:
Article
País de afiliación:
Francia