Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 1 de 1
Filtrar
Mais filtros

Base de dados
Ano de publicação
Tipo de documento
Revista
País de afiliação
Intervalo de ano de publicação
1.
Nature ; 572(7768): 194-198, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-31341281

RESUMO

Soil organisms are a crucial part of the terrestrial biosphere. Despite their importance for ecosystem functioning, few quantitative, spatially explicit models of the active belowground community currently exist. In particular, nematodes are the most abundant animals on Earth, filling all trophic levels in the soil food web. Here we use 6,759 georeferenced samples to generate a mechanistic understanding of the patterns of the global abundance of nematodes in the soil and the composition of their functional groups. The resulting maps show that 4.4 ± 0.64 × 1020 nematodes (with a total biomass of approximately 0.3 gigatonnes) inhabit surface soils across the world, with higher abundances in sub-Arctic regions (38% of total) than in temperate (24%) or tropical (21%) regions. Regional variations in these global trends also provide insights into local patterns of soil fertility and functioning. These high-resolution models provide the first steps towards representing soil ecological processes in global biogeochemical models and will enable the prediction of elemental cycling under current and future climate scenarios.


Assuntos
Mapeamento Geográfico , Nematoides/classificação , Nematoides/isolamento & purificação , Solo/parasitologia , Animais , Biomassa , Carbono/metabolismo , Nematoides/química , Filogeografia , Reprodutibilidade dos Testes , Incerteza
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA