5 Works

Data from: Pollinator shifts between Ophrys sphegodes populations: might adaptation to different pollinators drive population divergence?

Hendrik Breitkopf, Philipp M. Schlüter, Shuqing Xu, Florian P. Schiestl, Salvatore Cozzolino & Giovanni Scopece
Local adaptation to different pollinators is considered one of the possible initial stages of ecological speciation as reproductive isolation is a by-product of the divergence in pollination systems. However, pollinator-mediated divergent selection will not necessarily result in complete reproductive isolation, because incipient speciation is often overcome by gene flow. We investigated the potential of pollinator shift in the sexually deceptive orchids Ophrys sphegodes and Ophrys exaltata and compared the levels of floral isolation vs. genetic...

Libri elettronici. Pratiche della didattica e della ricerca

Roberto Delle Donne, Antonella De Robbio, Maria Guercio, Giuseppe Vitiello, Gino Roncaglia, Maurella Della Seta & Rodolfo Figari
This proceedings e-book contains papers presented at the national Symposium on “Electronic Books and the practices of scholarly research”, held in Naples, Italy, on 20 June 2003. The advent of new technologies, tools, and digital resources is changing how scholars conduct their work, keep updated in their field or fields of study, and think about research. Moving from the reconstruction of the market of scientific communication, copyright policies, and management of long-term conservation strategies, the...

Data from: Components of reproductive isolation between Orchis mascula and O. pauciflora

Giovanni Scopece, Antonio Croce, Christian Lexer & Salvatore Cozzolino
Studies of the strength and nature of reproductive isolation (RI) between species can greatly contribute to our understanding of speciation. Although the role of RI in speciation is well recognized, there is a dearth of information on the contributions of different barriers between related plant species. Here, we estimated multiple components of RI between two Mediterranean orchid sister species (Orchis mascula and Orchis pauciflora), disentangling the strength and absolute contributions of seven different isolating mechanisms....

Data from: Bite of the cats: relationships between functional integration and mechanical performance as revealed by mandible geometry

Paolo Piras, Leonardo Maiorino, Luciano Teresi, Carlo Meloro, Federico Lucci, Tassos Kotsakis & Pasquale Raia
Cat-like carnivorous mammals represent a relatively homogeneous group of species whose morphology appears constrained by exclusive adaptations for meat eating. We present the most comprehensive dataset of extant and extinct cat-like species to test for evolutionary transformations in size, shape and mechanical performance, i.e. von Mises stress and surface traction, of the mandible. Size and shape were both quantified by means of Geometric Morphometrics while mechanical performance was assessed applying Finite Element Models to two...

Data from: Phylogeographic structure and outbreeding depression reveal early stages of reproductive isolation in the Neotropical orchid Epidendrum denticulatum

Fábio Pinheiro, Salvatore Cozzolino, Fábio De Barros, Tiago M. Z. M. Gouveia, Rogério Mamoru Suzuki, Michael F. Fay & Clarisse Palma-Silva
Phylogeographic studies provide an important framework for investigating the mechanisms operating during the earliest stages of speciation, as reproductive barriers can be examined among divergent lineages in a geographic context. We investigated the evolution of early stages of intrinsic postmating isolation among different populations and lineages of Epidendrum denticulatum, a Neotropical orchid distributed across different biomes in South America. We estimated genetic diversity and structure for both nuclear and plastid markers, using a haplotype network,...

Registration Year

  • 2013
    5

Resource Types

  • Dataset
    4
  • Text
    1

Affiliations

  • University of Naples Federico II
    5
  • Royal Botanic Gardens
    1
  • Instituto de Botânica
    1
  • University of Fribourg
    1
  • University of Zurich
    1
  • Second University of Naples
    1
  • Max Planck Institute for Chemical Ecology
    1
  • University of Potsdam
    1
  • Roma Tre University
    1