Tadpole Dance: estratégias alimentares em girinos

• Ano de defesa: 2022
• Autor(a) principal: Jéssica Stephanie Kloh
• Orientador(a): Paula Cabral Eterovick
• Banca de defesa: Denise de Cerqueira Rossa-Feres, Fausto Nomura, Paulo Enrique Cardoso Peixoto, Grabiela Von Ruckert Heleno
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: eng
• Instituição de defesa: Universidade Federal de Minas Gerais
• Programa de Pós-Graduação: Programa de Pós-Graduação em Ecologia, Conservacao e Manejo da Vida Silvestre
• País: Brasil
• Palavras-chave em Português: Tadpoles; Amphibia; Anura; Hylidae
• Link de acesso: http://hdl.handle.net/1843/51547

Tadpoles are considered important components of food webs in aquatic ecosystems, however, their trophic roles remain poorly studied compared to other groups of aquatic vertebrates. The morphology of the larvae indicates general aspects of the diets, but few studies so far have actually explored the food composition of tadpoles, especially in the Neotropics. Throughout the development of this thesis, we sought to explore these gaps, developing a series of experiments focusing on the different feeding strategies used by tadpoles, mainly in relation to the consumption of pollen grains. We developed 4 chapters, entitled, Chapter 1: Tadpole dance: the gymnastics of Scinax machadoi larvae to feed on pollen, where we seek to evaluate and describe changes in the foraging behavior of Scinax machadoi tadpoles in favor of pollen grains on the water surface. Chapter 2: No choice is not a choice: food selectivity occurs in different ontogenetic stages of Phasmahyla jandaia (Anura, Phyllomedusidae), in which we studied the diet of three developmental stages of Phasmahyla jandaia larvae and evaluated the main items consumed by each stage, thus comparing the items available in the environment with the items ingested by each stage. Chapter 3: Pollen as food: Effects of consumption on tadpole growth, development, and mobility, in which we tested the influence of pollen grain consumption on the growth, development and mobility of Scinax machadoi larvae. Chapter 4: Taste for pollen comes in different shapes: consumption by tadpoles from three divergent ecomorphotypes, in which we finally evaluated the ability to ingest and break pollen grains by three ecomorphological types of anuran larvae.