3 Works

Data from: Testing main Amazonian rivers as barriers across time and space within widespread taxa

Renata Pirani, Fernanda Werneck, Andréa Thomaz, Mariah Kenney, Marcelo Sturaro, Teresa Cristina Avila-Pires, Pedro Peloso, Miguel Rodrigues & L. Lacey Knowles
Aim: Present Amazonian diversity patterns can result from many different mechanisms and, consequently, the factors contributing to divergence across regions and/or taxa may differ. Nevertheless, the river-barrier hypothesis (RBH) is still widely invoked as a causal process in divergence of Amazonian species. Here we use model-based phylogeographic analyses to test the extent to which major Amazonian rivers act similarly as barriers across time and space in two broadly distributed Amazonian taxa. Local: Amazon rainforest. Taxon:...

Data from: Sequestration and biosynthesis of cyanogenic glucosides in passion vine butterflies and consequences for the diversification of their host plants

Érika C. Pinheiro De Castro, Mika Zagrobelny, Juan Pablo Zurano, Márcio Zikan Cardoso, René Feyereisen & Søren Bak
The colorful heliconiine butterflies are distasteful to predators due to their content of defense compounds called cyanogenic glucosides (CNglcs), which they biosynthesize from aliphatic amino acids. Heliconiine larvae feed exclusively on Passiflora plants where ~30 kinds of CNglcs have been reported. Among them, some CNglcs derived from cyclopentenyl glycine can be sequestered by some Heliconius species. In order to understand the evolution of biosynthesis and sequestration of CNglcs in these butterflies and its consequences for...

Vellozioid roots allow for habitat specialisation among rock- and soil-dwelling Velloziaceae in campos rupestres

Anna Abrahão, Patrícia De Britto Costa, Grazielle Sales Teodoro, Hans Lambers, Diego L. Nascimento, Sara A. L. De Andrade, Megan H. Ryan & Rafael S. Oliveira
1. Plant growth on harsh substrates (habitat specialisation) requires specific traits to cope with stressful conditions. 2. We tested whether traits related to nutrient acquisition (root colonisation by fungal symbionts, and plant morphological and physiological specialisations), and nutrient use (leaf nitrogen (N) and phosphorus (P) concentrations and N- and P-remobilisation efficiency), were related to habitat specialisation for 27 species of Velloziaceae growing either in soil or on rocks in extremely P-impoverished campos rupestres habitats. If...

Registration Year

  • 2019
    3

Resource Types

  • Dataset
    3

Affiliations

  • Federal University of Para
    3
  • University of Hohenheim
    1
  • University of Michigan–Ann Arbor
    1
  • Museu Paraense Emílio Goeldi
    1
  • National Institute of Amazonian Research
    1
  • University of Copenhagen
    1
  • University of Sao Paulo
    1
  • University of Western Australia
    1
  • State University of Campinas
    1
  • Federal University of Rio Grande do Norte
    1