5 Works

Data from: House sparrows offset the physiological trade-off between immune response and feather growth by adjusting foraging behavior

Miriam Ben-Hamo, Cynthia Downs, Darren Burns, Berry Pinshow, Cynthia J. Downs & Darren J. Burns
Growing feathers and mounting immune responses are both energetically costly for birds. According to the life history trade-off hypothesis, it has been posited that the costs of feather growth lead to temporal isolation between molt and other expensive activities, reproduction for example. In contrast to life cycle events, the need to mount an immune response can occur at any time, including during feather growth. Thus, we hypothesized that mounting an immune response during feather growth...

Data from: Effects of plant and pollinator traits on the maintenance of a food deceptive species within a plant community

Hungchun Qu, Tal Seifan, Merav Seifan & Hongchun Qu
Model-mimic plant systems are well known. However, the conditions promoting the existence of such systems are still an enigma. We suggest that by focusing on floral similarity between model and mimic, reward levels offered by models, and pollinators' ability to adjust foraging accordingly, the conditions can be better understood. Using spatially-explicit modelling, we examined trait combinations that lead to the survival of deceptive species under a large range of mimic strategies, from Batesian mimicry to...

Data from: February precipitation in the wintering grounds of the lesser whitethroat, Sylvia curruca: is it a cue for migration onset?

Irith Aloni, Shai Markman & Yaron Ziv
Numerous studies report shifts in bird migration phenology, presumably owing to global warming. However, most studies focus on migration patterns in the Northern Hemisphere. In this study, we investigated associations between weather conditions in African wintering grounds of the lesser whitethroat, Sylvia curruca, and spring arrival time in Eilat, Israel. Using multivariate regression models, we analysed a 30-year dataset in order to examine correlations between median springtime arrival and 46 climate variables of the wintering...

Data from: Gene duplication and co-evolution of G1/S transcription factors specificity in fungi are essential for optimizing cell fitness

Adi Hendler, Edgar M. Medina, Anastasiya Kishkevich, Mehtap Abu-Qarn, Steffi Klier, Nicolas E. Buchler, Robertus A. M. De Bruin & Amir Aharoni
Transcriptional regulatory networks play a central role in optimizing cell survival. How DNA binding domains and cis-regulatory DNA binding sequences have co-evolved to allow the expansion of transcriptional networks and how this contributes to cellular fitness remains unclear. Here we experimentally explore how the complex G1/S transcriptional network evolved in the budding yeast Saccharomyces cerevisiae by examining different chimeric transcription factor (TF) complexes. Over 300 G1/S genes are regulated by either one of the two...

Data from: Crowding leads to fitness benefits and reduced dispersal in a colonial spider

Lior Ventura, Deborah Roan Smith & Yael Lubin
Density-dependent dispersal is a common dispersal strategy, mainly as a mechanism of escaping decreased fitness associated with high intra-specific competition. However, in group-living species, high density is expected to be beneficial for the individual, at least up to a certain threshold. A possible mechanism for maintaining an optimal density is negative density-dependent dispersal. In order to examine this hypothesis, we studied the effect of colony density on growth, dispersal and prey capture under different diets...

Registration Year

  • 2017
    5

Resource Types

  • Dataset
    5

Affiliations

  • Ben-Gurion University of the Negev
    5
  • University of Washington
    1
  • Duke University
    1
  • Chongqing University
    1
  • University of Haifa
    1
  • University College London
    1