Data/hora: 03/06/2024 11:21:25

Provedor de dados: | 39
País: | Brazil
Título: | More is not always better: responses of the endemic plant Vellozia nanuzae to additional nutrients
Autores: | Cunha-Blum,Jessica; Oki,Yumi; Solar,Ricardo; Fernandes,Geraldo Wilson.
Data: | 2020-09-01
Ano: | 2020
Palavras-chave: | Campo rupestre; Plant nutrition; Rupestrian grasslands; Soil nutrients; Velloziaceae.
Resumo: | ABSTRACT Soil nutrients are one of the main drivers of plant species composition and distribution, mainly due to the role they play in plant survival and reproductive success. However, the nutritional requirements of plants inhabiting their native ecosystems are still poorly known. This is the case for most species of campo rupestre vegetation, which are found on infertile soils of quartzitic and ferruginous origin. The present study evaluated the effects of macronutrients and substrates on survival and growth of the micro-endemic Vellozia nanuzae (Velloziaceae). Plant mortality was about 95 % higher in soil enriched with macronutrients and almost 100 % in soils with added manure in the first 30 days. Individual plants from treatments with added nutrients had lower growth (53 % less) compared to individuals on natural substrates. In conclusion, Vellozia nanuzaesurvived and developed better on soil of its original habitat even though it is acidic and poor in nutrients. Our results show that more nutrients are not always better for the survival and development of native species that inhabit harsh ecosystems.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000300487
Editor: | Sociedade Botânica do Brasil
Relação: | 10.1590/0102-33062020abb0041
Formato: | text/html
Fonte: | Acta Botanica Brasilica  v.34 n.3 2020
Fonte: | info:eu-repo/semantics/openAccess