2 Works

Data from: Architectural constraints, male fertility variation and biased floral morph ratios in tristylous populations

Nicolay L. Da Cunha & Spencer C. H. Barrett
Tristyly is a genetic polymorphism in which populations are comprised of three floral morphs (mating types) differing reciprocally in sex-organ height. Intermorph (disassortative) mating governed by a trimorphic incompatibility system should result in 1:1:1 morph ratio at equilibrium, but both deterministic and stochastic processes can cause skewed morph ratios in tristylous populations. Here, we investigate mechanisms causing morph-ratio bias in Pontederia parviflora, an emergent aquatic native to tropical America. We compared reproductive traits among morphs...

Data from: Climate effects on fish body size-trophic position relationship depend on ecosystem type

Danyhelton D.F. Dantas, Adriano Caliman, Rafael D. Guariento, Ronaldo Angelini, Luciana S. Carneiro, Sergio M.Q. Lima, Pablo A. Martinez & José L. Attayde
The energetic demand of consumers increases with body size and temperature. This implies that energetic constraints may limit the trophic position of larger consumers, which is expected to be lower in tropical than in temperate regions to compensate for energy limitation. Using a global dataset of 3,635 marine and freshwater ray-finned fish species, we addressed if and how climate affects the fish body size-trophic position relationship in both freshwater and marine ecosystems, while controlling for...

Registration Year

  • 2019

Resource Types

  • Dataset


  • Federal University of Mato Grosso do Sul
  • University of Toronto
  • Federal University of Rio Grande do Norte