Resource limitation and food quality for zooplankton in freshwater lakes

• Processo: 01/04444-3
• Modalidade de apoio: Bolsas no Exterior - Pesquisa
• Data de Início da vigência: 21 de julho de 2001
• Data de Término da vigência: 20 de dezembro de 2001
• Área de conhecimento: Ciências Biológicas - Ecologia - Ecologia de Ecossistemas
• Pesquisador responsável: Aloysio da Silva Ferrão Filho
• Beneficiário: Aloysio da Silva Ferrão Filho
• Pesquisador Anfitrião: William Roland DeMott
• Instituição Sede: Pessoa Física
• Instituição Anfitriã: Michigan State University (MSU), Estados Unidos
• Assunto(s): Fitoplâncton Zooplâncton Isótopos Fósforo
• Palavra(s)-Chave do Pesquisador: Crescimento | Fitoplancton | Fosforo | Isitopos | Limitacao | Zooplancton

Resumo

The objectives of this research are: 1) to study the mechanisms of food limitation in cladocerans from temperate and tropical lakes and 2) to measure food quantity and to test alternative hypotheses of food quality simultaneously. In the first part, growth biossays and assimilation experiments with isotopes (C and P) will be conducted during summer at KBS with Dr. Alan Tessier. The second part of the study will examine the performances of common zooplankton species along gradients of food quality using laboratory foods. These experiments, to be conducted in Dr. DeMott's laboratory in Fort Wayne, will test for tradeoffs in exploitation ability and will provide insights into the underlying physiological mechanisms. (AU)