5 Works

Uninterrupted growth in a non-polar hadrosaur explains the gigantism among duck-billed dinosaurs

Tomasz Szczygielski, Justyna Słowiak, Łucja Fostowicz-Frelik & Michał Ginter
Duck-billed dinosaurs (Hadrosauridae) were the most common ornithopods of the Late Cretaceous. Second only to sauropods and in many cases exceeding the sizes of the largest land mammals (such as indricotheres or proboscideans), they represent the largest terrestrial herbivores that walked the Earth. Despite their gigantic sizes, diversity, and abundance, their growth strategies remain poorly understood. Herein, we examine the bone microstructure of several Mongolian hadrosauroids of varied adult sizes. The small and middle-sized species...

Multigene phylogenetics of euglenids based on single-cell transcriptomics of diverse phagotrophs

Gordon Lax, Martin Kolisko, Yana Eglit, Won Je Lee, Naoji Yubuki, Anna Karnkowska, Leander Brian, Gertraud Burger, Patrick Keeling & Alastair Simpson
Euglenids are a well-known group of single-celled eukaryotes, with phototrophic, osmotrophic and phagotrophic members. Phagotrophs represent most of the phylogenetic diversity of euglenids, and gave rise to the phototrophs and osmotrophs, but their evolutionary relationships are poorly understood. Symbiontids, in contrast, are anaerobes that are alternatively inferred to be derived euglenids, or a separate euglenozoan group. Most phylogenetic studies of euglenids have examined the SSU rDNA gene only, which is often highly divergent. Also, many...

Disentangling effects of disturbance severity and frequency: does bioindication really work?

Remigiusz Pielech & Patryk Czortek
Ecological disturbances are recognized as a crucial factor influencing the attributes of ecological communities. Depending on the specific adaptation or life cycle, plant species show different responses to disturbances of different magnitudes. Herben et al. (2016) proposed disturbance indicator values (DIVs) that describe the niche of each Central-European plant species along gradients of disturbance frequency and severity. Here we ask if the DIVs can be used in community ecology for bioindication of disturbance regime? We...

Global gradients in intraspecific variation in vegetative and floral traits are partially associated with climate and species richness

Jonas Kuppler, Cécile H. Albert, Gregory M. Ames, W. Scott Armbruster, Gerhard Boenisch, Florian C. Boucher, Diane R. Campbell, Liedson T. Carneiro, Eduardo Chacón-Madrigal, Brian J. Enquist, Carlos R. Fonseca, José M. Gómez, Antoine Guisan, Pedro Higuchi, Dirk N. Karger, Jens Kattge, Michael Kleyer, Nathan J. B. Kraft, Anne-Amélie C. Larue-Kontić, Amparo Lázaro, Martin Lechleitner, Deirdre Loughnan, Vanessa Minden, Ülo Niinemets, Gerhard E. Overbeck … & Robert R. Junker
Aim Intraspecific trait variation (ITV) within natural plant communities can be large, influencing local ecological processes and dynamics. Here, we shed light on how ITV in vegetative and floral traits responds to large-scale abiotic and biotic gradients (i.e. climate and species richness). Specifically, we tested if associations of ITV with temperature, precipitation and species richness were consistent with any of from four hypotheses relating to stress-tolerance and competition. Furthermore, we estimated the degree of correlation...

Growing in the city: urban evolutionary ecology of avian growth rates.

Michela Corsini, Eva Maria Schöll & Marta Szulkin
Rapid environmental change driven by urbanisation offers a unique insight into the adaptive potential of wildlife as it can induce distinct selective pressures on urban dwelling organisms. Despite mounting evidence for urban-driven phenotypic differentiation across taxa, knowledge of the impact of urbanisation on vertebrate developmental rates and subsequent survival is very limited. Importantly, the role of selection on urban-driven body mass divergence in juvenile organisms remains poorly understood. We studied nestling development in a gradient...

Registration Year

  • 2020
    5

Resource Types

  • Dataset
    5

Affiliations

  • University of Warsaw
    5
  • University of British Columbia
    2
  • University of Avignon
    1
  • Duke University
    1
  • Estonian University of Life Sciences
    1
  • University of Lausanne
    1
  • Polish Academy of Sciences
    1
  • Dalhousie University
    1
  • Estacion Experimental de Zonas Aridas
    1
  • University of Alaska Fairbanks
    1