7 Works

Data from: Acoustic identification of Mexican bats based on taxonomic and ecological constraints on call design

Veronica Zamora-Gutierrez, Celia Lopez-Gonzalez, M. Cristina MacSwiney Gonzalez, Brock Fenton, Gareth Jones, Elisabeth K. V. Kalko, Sebastien J. Puechmaille, Vassilios Stathopoulos & Kate E. Jones
Monitoring global biodiversity is critical for understanding responses to anthropogenic change, but biodiversity monitoring is often biased away from tropical, megadiverse areas that are experiencing more rapid environmental change. Acoustic surveys are increasingly used to monitor biodiversity change, especially for bats as they are important indicator species and most use sound to detect, localise and classify objects. However, using bat acoustic surveys for monitoring poses several challenges, particularly in megadiverse regions. Many species lack reference...

Data from: Meta-analysis reveals that hydraulic traits explain cross-species patterns of drought-induced tree mortality across the globe

William R. L. Anderegg, Tamir Klein, Megan Bartlett, Lawren Sack, Adam F. A. Pellegrini, Brendan Choat & Steven Jansen
Drought-induced tree mortality has been observed globally and is expected to increase under climate change scenarios, with large potential consequences for the terrestrial carbon sink. Predicting mortality across species is crucial for assessing the effects of climate extremes on forest community biodiversity, composition, and carbon sequestration. However, the physiological traits associated with elevated risk of mortality in diverse ecosystems remain unknown, although these traits could greatly improve understanding and prediction of tree mortality in forests....

Data from: Assessing environmental pollution in birds: a new methodological approach for interpreting bioaccumulation of trace elements in feather shafts using geochemical sediment data

Fabrizio Borghesi, Enrico Dinelli, Francesca Migani, Arnaud Béchet, Maunel Rendón-Martos, Juan A. Amat, Simone Sommer & Mark A. F. Gillingham
Environmental trace element composition can have an important impact on ecosystem and population health as well individual fitness. Therefore, carefully assessing bioaccumulation of trace elements is central to studies investigating the ecological impact of pollution. Colonial birds are important bioindicators since non-invasive sampling can easily be achieved through sampling of chick feathers, which controls for some confounding factors of variability (age and environmental heterogeneity). However, an additional confounding factor, external contamination (ExCo), which remains even...

Data from: Optic flow odometry operates independently of stride integration in carried ants

Sarah E. Pfeffer & Matthias Wittlinger
Cataglyphis desert ants are impressive navigators. When the foragers roam the desert, they employ path integration. For these ants, distance estimation is one key challenge. Distance information was thought to be provided by optic flow (OF)—that is, image motion experienced during travel—but this idea was abandoned when stride integration was discovered as an odometer mechanism in ants. We show that ants transported by nest mates are capable of measuring travel distance exclusively by the use...

Data from: How to find home backwards? Navigation during rearward homing of Cataglyphis fortis desert ants

Sarah Elisabeth Pfeffer & Matthias Wittlinger
Cataglyphis ants are renowned for their impressive navigation skills, which have been studied in numerous experiments during forward locomotion. However, the ants' navigational performance during backward homing when dragging large food loads has not been investigated until now. During backward locomotion, the odometer has to deal with unsteady motion and irregularities in inter-leg coordination. The legs' sensory feedback during backward walking is not just a simple reversal of the forward stepping movements: compared with forward...

Data from: Metabolic characterization of intact cells reveals intracellular amyloid beta but not its precursor protein to reduce mitochondrial respiration

Patrick M. Schaefer, Bjoern Von Einem, Paul Walther, Enrico Calzia & Christine A.F. Von Arnim
One hallmark of Alzheimer´s disease are senile plaques consisting of amyloid beta (Aβ), which derives from the processing of the amyloid precursor protein (APP). Mitochondrial dysfunction has been linked to the pathogenesis of Alzheimer´s disease and both Aβ and APP have been reported to affect mitochondrial function in isolated systems. However, in intact cells, considering a physiological localization of APP and Aβ, it is pending what triggers the mitochondrial defect. Thus, the aim of this...

Data from: How to find home backwards? Locomotion and inter-leg coordination during rearward walking of Cataglyphis fortis desert ants

Sarah Elisabeth Pfeffer, Verena Luisa Wahl & Matthias Wittlinger
For insects, flexibility in the performance of terrestrial locomotion is a vital part of facing the challenges of their often unpredictable environment. Arthropods such as scorpions and crustaceans can switch readily from forward to backward locomotion, but in insects this behaviour seems to be less common and, therefore, is only poorly understood. Here we present an example of spontaneous and persistent backward walking in Cataglyphis desert ants that allows us to investigate rearward locomotion within...

Registration Year

  • 2016
    7

Resource Types

  • Dataset
    7

Affiliations

  • University of Ulm
    7
  • Princeton University
    1
  • University of Bologna
    1
  • University of Cambridge
    1
  • University of Warwick
    1
  • Consejería de Medio Ambiente y Ordenación del Territorio
    1
  • Western University
    1
  • University College London
    1
  • Smithsonian Tropical Research Institute
    1
  • Universidad Veracruzana
    1