7 Works

Data from: High male density favors maintenance over reproduction in a butterfly

Rina Geiger, Michaël Beaulieu, Kristin Franke & Klaus Fischer
Environmental factors exert strong effects on phenotypic expression. A particularly intriguing factor capable of inducing such plastic responses is the social environment experienced by a specific individual. Such social effects may alter the fitness of focal individuals if they affect the expression of reproductive traits and thus life-history strategies. To examine this question, we investigated the effects of individual density on morphology, reproduction, and behavior of male Bicyclus anynana butterflies. Increasing density significantly increased male...

Data from: Bat overpasses: an insufficient solution to restore habitat connectivity across roads

Fabien Claireau, Yves Bas, Sébastien J. Puechmaille, Jean-François Julien, Benjamin Allegrini & Christian Kerbiriou
1. Roads have many negative effects on wildlife, including their role in habitat fragmentation. Habitat fragmentation affects bats during their daily movements between roosts and foraging areas. As bats are protected in Europe, developers must implement specific mitigation measures that are hierarchically structured to achieve a null net impact. However, very few specific mitigation measures have been undertaken specifically for bats. Bat overpasses are among proposed improvements intended to reduce the impact of roads, but...

Data from: Modelling landscape connectivity for greater horseshoe bat using an empirical quantification of resistance

David Pinaud, Fabien Claireau, Maxime Leuchtmann & Christian Kerbiriou
1. Habitat fragmentation and isolation as a result of human activities have been recognized as great threats to population viability. Evaluating landscape connectivity in order to identify and protect linkages has therefore become a key challenge in applied ecology and conservation. 2. One useful approach to evaluate connectivity is Least-Cost Path (LCP) analysis. However, several studies have highlighted importance of parameterization with empirical, biologically-relevant proxies of factors affecting movements, as well as the need to...

Data from: Successful despite poor flight performance: range expansion is associated with enhanced exploratory behaviour and fast development

Elisabeth Reim, Simone Blesinger, Lisa Förster & Klaus Fischer
Anthropogenic interference forces species to respond to changing environmental conditions. One possible response is dispersal and concomitant range shifts, allowing individuals to escape unfavourable conditions or to track the shifting climate niche. Range expansions depend on both dispersal capacity and the ability to establish populations beyond the former range. We here compare well-established core populations with recently established edge populations in the currently northward expanding butterfly Lycaena tityrus. Edge populations were characterized by shorter development...

Data from: Adaptive phenotypic plasticity in a clonal invader

Gerlien Verhaegen, Kyle E. McElroy, Laura Bankers, Maurine Neiman & Martin Haase
Organisms featuring wide trait variability and occurring in a wide range of habitats, such as the ovoviviparous freshwater New Zealand snail Potamopyrgus antipodarum, are ideal models to study adaptation. Since the mid-19th century, P. antipodarum, characterized by extremely variable shell morphology, has successfully invaded aquatic areas on four continents. Because these obligately and wholy asexual invasive populations harbor low genetic diversity compared to mixed sexual/asexual populations in the native range, we hypothesized that 1) this...

Data from: Light availability impacts structure and function of phototrophic stream biofilms across domains and trophic levels

Mia M. Bengtsson, Karoline Wagner, Clarissa Schwab, Tim Urich & Tom J. Battin
Phototrophic biofilms are ubiquitous in freshwater and marine environments where they are critical for biogeochemical cycling, food webs and in industrial applications. In streams, phototrophic biofilms dominate benthic microbial life and harbor an immense prokaryotic and eukaryotic microbial biodiversity with biotic interactions across domains and trophic levels. Here, we examine how community structure and function of these biofilms respond to varying light availability, as the crucial energy source for phototrophic biofilms. Using metatranscriptomics, we found...

Data from: White matter lesions: spatial heterogeneity, links to risk factors, cognition, genetics, atrophy

Mohamad Habes, Sotiras Aristeidis, Erus Guray, Jon B. Toledo, Janowitz Deborah, Wolk David A., Shou Haochang, Bryan Nick R, Doshi Jimit, Völzke Henry, Schminke Ulf, Hoffmann Wolfgang, Resnick Susan M., Grabe Hans J. & Davatzikos Christos
Objectives: To investigate spatial heterogeneity of white matter lesions or hyperintensities (WMH). Methods: MRI scans of 1836 participants (median age 52.2±13.16) encompassing a wide age range (22–84 years) from the cross-sectional Study of Health in Pomerania (SHIP, Germany) were included as discovery set identifying spatially distinct components of WMH using a structural covariance approach. Scans of 307 participants (median age 73.8±10.2, with 747 observations) from the Baltimore Longitudinal Study of Aging (BLSA, USA) were included...

Registration Year

  • 2018

Resource Types

  • Dataset


  • University of Greifswald
  • French National Centre for Scientific Research
  • National Museum of Natural History
  • University of Pennsylvania
  • Université Paul-Valéry Montpellier
  • Houston Methodist
  • Sorbonne University
  • École Polytechnique Fédérale de Lausanne
  • University of Iowa
  • University of Vienna