Relationship of insect biomass and richness with land use along a climate gradient.
Nat Commun
; 12(1): 5946, 2021 10 12.
Article
em En
| MEDLINE
| ID: mdl-34642336
ABSTRACT
Recently reported insect declines have raised both political and social concern. Although the declines have been attributed to land use and climate change, supporting evidence suffers from low taxonomic resolution, short time series, a focus on local scales, and the collinearity of the identified drivers. In this study, we conducted a systematic assessment of insect populations in southern Germany, which showed that differences in insect biomass and richness are highly context dependent. We found the largest difference in biomass between semi-natural and urban environments (-42%), whereas differences in total richness (-29%) and the richness of threatened species (-56%) were largest from semi-natural to agricultural environments. These results point to urbanization and agriculture as major drivers of decline. We also found that richness and biomass increase monotonously with increasing temperature, independent of habitat. The contrasting patterns of insect biomass and richness question the use of these indicators as mutual surrogates. Our study provides support for the implementation of more comprehensive measures aimed at habitat restoration in order to halt insect declines.
Texto completo:
1
Coleções:
01-internacional
Contexto em Saúde:
2_ODS3
Base de dados:
MEDLINE
Assunto principal:
Urbanização
/
Espécies em Perigo de Extinção
/
Conservação dos Recursos Naturais
/
Agricultura
/
Insetos
Limite:
Animals
País/Região como assunto:
Europa
Idioma:
En
Revista:
Nat Commun
Ano de publicação:
2021
Tipo de documento:
Article