Data from: Temporal migration pattern and mating tactics influence size-assortative mating in Rana temporariaCarolin Dittrich, Ariel Rodríguez, Ori Segev, Sanja Drakulić, Heike Feldhaar, Miguel Vences & Mark-Oliver Rödel
Assortative mating is a common pattern in sexually reproducing species, but the mechanisms leading to assortment remain poorly understood. By using the European common frog (Rana temporaria) as a model, we aim to understand the mechanisms leading to size-assortative mating in amphibians. With data from natural populations collected over several years, we first show a consistent pattern of size-assortative mating across our two study populations. We subsequently ask if assortative mating may be explained by...
Data from: A glimpse of an ancient agricultural ecosystem based on remains of micromammals in the Byzantine Negev DesertTal Fried, Lior Weissbrod, Yotam Tepper & Guy Bar-Oz
It is widely believed that Byzantine agriculture in the Negev Desert (4th–7th cent. CE), with widespread construction of terraces and dams, altered local landscapes. However, no direct evidence in archaeological sites yet exists to test this assumption. We uncovered large amounts of small mammalian remains (rodents and insectivores) within agricultural installations built near fields, providing a new line of evidence for reconstructing anthropogenic impact on local habitats. Abandonment layers furnished high abundances of remains, whereas...
Adaptation for invasiveness should comprise the capability to exploit and prosper in a wide range of ecological conditions, and is therefore expected to be associated with a certain level of genetic diversity. Paradoxically, however, invasive populations are established by only a few founders, resulting in low genetic diversity. As a conceivable way of attaining high genetic diversity and high variance of gene expression even when a small number of founders is involved in invasiveness, I...
Data from: miR-9a modulates maintenance and ageing of Drosophila germline stem cells by limiting N-cadherin expressionYehonatan Epstein, Noam Perry, Marina Volin, Maayan Zohar-Fux, Rachel Braun, Lilach Porat-Kuperstein & Hila Toledano
Ageing is characterized by a decline in stem cell functionality leading to dampened tissue regeneration. While the expression of microRNAs across multiple species is markedly altered with age, the mechanism by which they govern stem cell-sustained tissue regeneration is unknown. We report that in the Drosophila testis, the conserved miR-9a is expressed in germline stem cells and its levels are significantly elevated during ageing. Transcriptome and functional analyses show that miR-9a directly regulates the expression...
The diverse hummingbird family (Trochilidae) has unique adaptations for nectarivory, among which is the ability to sustain hover-feeding. As hummingbirds mainly feed while hovering, it is crucial to maintain this ability throughout the annual cycle—especially during flight-feather moult, in which wing area is reduced. To quantify the aerodynamic characteristics and flow mechanisms of a hummingbird wing throughout the annual cycle, time-accurate aerodynamic loads and flow field measurements were correlated over a dynamically scaled wing model...
Data from: Acclimatization of symbiotic corals to mesophotic light environments through wavelength transformation by fluorescent protein pigmentsEdward G. Smith, Cecilia D'Angelo, Yoni Sharon, Dan Tchernov & Joerg Wiedenmann
The depth distribution of reef-building corals exposes their photosynthetic symbionts of the genus Symbiodinium to extreme gradients in the intensity and spectral quality of the ambient light environment. Characterizing the mechanisms used by the coral holobiont to respond to the low intensity and reduced spectral composition of the light environment in deeper reefs (greater than 20 m) is fundamental to our understanding of the functioning and structure of reefs across depth gradients. Here, we demonstrate...
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...
University of Haifa7
Interuniversity Institute for Marine Sciences in Eilat1
Technische Universität Braunschweig1
University of Veterinary Medicine Hanover1
New York University1
University of Southampton1
University of Bayreuth1
Berlin Brandenburg Institute of Advanced Biodiversity Research1
Technion – Israel Institute of Technology1
Museum für Naturkunde1