6 Works

Data from: Competition-driven niche segregation on a landscape scale: evidence for escaping from syntopy toward allotopy in two coexisting sibling passerine species

Jiří Reif, Radka Reifova, Anna Skoracka & Lechosław Kuczyński
1. The role of interspecific competition for generating patterns in species’ distribution is hotly debated and studies taking into account processes occurring at both large and small spatial scales are almost missing. Theoretically, competition between species with overlapping niches should result in divergence of their niches in sympatry to reduce the costs of competition. Many species show a mosaic distribution within sympatric zones, with the syntopic sites occupied by both species, and allotopic sites where...

Data from: A nocturnal rail with a simple territorial call eavesdrops on interactions between rivals

Lucyna Ewa Wojas, Paweł Wojciech Podkowa & Tomasz Stanislaw Osiejuk
The behaviour of most animals has evolved in a communication network environment, in which signals produced by senders are perceived by many intended and unintended receivers. In this study, we tested whether the corncrake (Crex crex), a nocturnal rail species with innate (non-learned) calls, is able to eavesdrop on the interactions of conspecific males and how this eavesdropping affects subsequent responses by the eavesdropper to territorial intrusion. In the first step, simulated aggressive or neutral...

Data from: Relative costs and benefits of alternative reproductive phenotypes at different temperatures - genotype-by-environment interactions in a sexually selected trait

Agata Plesnar-Bielak, Anna Maria Skwierzyńska, Kasper Hlebowicz & Jacek Radwan
Background: The maintenance of considerable genetic variation in sexually selected traits (SSTs) is puzzling given directional selection expected to act on these traits. A possible explanation is the existence of a genotype-by-environment (GxE) interaction for fitness, by which elaborate SSTs are favored in some environments but selected against in others. In the current study, we look for such interactions for fitness-related traits in the bulb mite, a male-dimorphic species with discontinuous expression of a heritable...

Data from: Pseudo-enantiomeric chiral components and formation of the helical micro- and nanostructures in charge-transfer complexes

Jerzy J. Langer & Grzegorz Hreczycho
Helical organic micro- and nanostructures are formed by a charge-transfer complex, cinchonidine-TCNQ. These unusual forms result from the chirality, the steric structure and specific interactions of cinchonidine molecules . The material is semi-conducting (10-4 S/cm), with the typical absorption spectra in IR and UV-VIS, but also a characteristic CD spectrum. Surprisingly, conductive micro- and nano helices are not formed in the case of pseudo- enantiomeric cinchonine, i.e. the complex of cinchonine and TCNQ.

Data from: Interspecific competition promotes habitat and morphological divergence in a secondary contact zone between two hybridizing songbirds

Camille Sottas, Jiri Reif, Lechoslaw Kuczynski, Radka Reifova & Lechosław Kuczyński
Interspecific competition is assumed to play an important role in the ecological differentiation of species and speciation. However, empirical evidence for competition’s role in speciation remains surprisingly scarce. Here we studied the role of interspecific competition in the ecological differentiation and speciation of two closely related songbird species, the Common Nightingale (Luscinia megarhynchos) and the Thrush Nightingale (L. luscinia). Both species are insectivorous and ecologically very similar. They hybridize in a secondary contact zone, which...

Data from: Genetic diversity loss and homogenization in urban trees: the case of Tilia × europaea in Belgium and the Netherlands

An Vanden Broeck, Karen Cox, Iwona Melosik, Bert Maes & Koen Smets
Urban trees form a vital component of sustainable cities but the use of a restricted range of species and genotypes may pose a risk to global biodiversity. Despite several studies investigating tree species diversity, intraspecific genetic diversity of urban trees remains largely unexplored. Here, we characterized the genetic diversity of Tilia × europaea, one of the most widely planted urban tree species in Northwest Europe. We compared the genotypic diversity of historical plantings of Tilia...

Registration Year

  • 2018

Resource Types

  • Dataset


  • Adam Mickiewicz University in Poznań
  • Charles University
  • Research Institute for Nature and Forest
  • Jagiellonian University
  • Palacký University, Olomouc