A5085747396- Wildlife Ecology and Conservation
- Animal Behavior and Reproduction
- Avian ecology and behavior
- Species Distribution and Climate Change
- Animal Vocal Communication and Behavior
- Plant and animal studies
- Primate Behavior and Ecology
- Bat Biology and Ecology Studies
- Wildlife-Road Interactions and Conservation
- Animal Behavior and Welfare Studies
- Insect and Arachnid Ecology and Behavior
- Remote Sensing in Agriculture
- Ecology and Vegetation Dynamics Studies
- Behavioral and Psychological Studies
- Circadian rhythm and melatonin
- Decision-Making and Behavioral Economics
- Genetic and phenotypic traits in livestock
- Impact of Light on Environment and Health
- Climate variability and models
- Isotope Analysis in Ecology
- Hemispheric Asymmetry in Neuroscience
- Land Use and Ecosystem Services
- Data Visualization and Analytics
- Physiological and biochemical adaptations
- Animal Ecology and Behavior Studies
Tel Aviv University
2010-2025
University of Cambridge
2020-2025
Kalahari Meerkat Project
2021-2025
American Museum of Natural History
2024
Hebrew University of Jerusalem
2014-2022
Linnaeus University
2022
Institute of Life Sciences
2019
Summary Migration conveys an immense challenge, especially for juvenile birds coping with enduring and risky journeys shortly after fledging. Accordingly, juveniles exhibit considerably lower survival rates compared to adults, particularly during migration. Juvenile white storks ( C iconia ciconia ), which are known rely on adults their first fall migration presumably navigational purposes, also display much annual than adults. Using detailed GPS body acceleration data, we examined the...
Researchers uncover a large variation in the lifetime migratory decisions of young white storks.
The study of animal movement is experiencing rapid progress in recent years, forcefully driven by technological advancement. Biologgers with Acceleration (ACC) recordings are becoming increasingly popular the fields behavior and ecology, for estimating energy expenditure identifying behavior, prospects other potential uses as well. Supervised learning behavioral modes from acceleration data has shown promising results many species, a diverse range behaviors. However, broad implementation...
Human-induced direct mortality affects huge numbers of birds each year, threatening hundreds species worldwide. Tracking technologies can be an important tool to investigate temporal and spatial patterns bird as well their drivers. We compiled 1704 records from tracking studies across the African-Eurasian flyway for 45 species, including raptors, storks, cranes, covering period 2003 2021. Our results show a higher frequency human-induced causes than natural taxonomic groups, geographical...
The social organization of Damaraland and naked mole-rats is often suggested to resemble the societies eusocial insects more closely than that any other vertebrate. Eusocial feature queens hardly contribute workforce, specialized worker castes. However, in mole-rats, which live family groups with a single breeding pair multiple non-breeding helpers, work division still unclear. Previous studies, largely confined laboratory settings, could not quantify their primary cooperative behaviour,...
We studied the effect of ecological light pollution on a rocky desert community, focusing 2 spiny mouse congeners, nocturnal Acomys cahirinus (common mouse) and diurnal russatus (golden mouse). hypothesized that in response to artificial illumination A. will decrease its activity increase activity, thus temporal overlap interspecific competition could increase. Our study took place 4 field enclosures: 1st 3rd months were controls with natural light, 2nd month illumination, simulating low...
Early arrival at breeding grounds is of prime importance for migrating birds as it known to enhance success. Adults, males and higher quality individuals typically arrive earlier, across years, early has been linked warmer spring temperatures. However, the mechanisms potential costs are not well understood. To deepen understanding date differences between we studied them in light preceding migration behaviour atmospheric conditions en route. GPS body acceleration (ACC) data were obtained 35...
Individual variation is increasingly recognized as a central component of ecological processes, but its role in structuring environmental niche associations remains largely unknown. Species' responses to conditions are ultimately determined by the niches single individuals, yet typically captured only at level species. Here, we develop scenarios for how individual may combine define compound populations, use extensive movement data document variation, test associated hypotheses...
Biotelemetry is increasingly used to study animal movement at high spatial and temporal resolution guide conservation resource management. Yet, limited sample sizes variation in space habitat use across regions life stages may compromise robustness of behavioral analyses subsequent plans. Here, we assessed (i) home range sizes, (ii) selection, (iii) fine-scale selection white storks breeding status test model transferability. Three areas were chosen within the Central German grounds ranging...
Early-life conditions have critical, long-lasting effects on the fate of individuals, yet early-life activity has rarely been linked to subsequent survival animals in wild. Using high-resolution GPS and body-acceleration data 93 juvenile white storks ( Ciconia ciconia ), we examined links between behaviour during both pre-fledging post-fledging (fledging-to-migration) periods first-year survival. Juvenile daily (based overall dynamic body acceleration) showed repeatable between-individual...
Abstract Studying the causes and consequences of route selection in animal migration is important for understanding evolution migratory systems how they may be affected by environmental factors at various spatial temporal scales. One key decision during whether to cross ‘high transport cost’ areas or circumvent them. Soaring birds face this choice when encountering waterbodies where convective updrafts are weak scarce. Crossing these requires flying using energetically costly flapping...
In cooperatively breeding species where rearing effort is shared among multiple group members, increases in size typically reduce average per capita contributions to offspring care by all members (load-lightening) but it not known how changes affect the distribution of workload members. The socioeconomic collective action theory suggests that, larger groups, incentives for free riding are stronger, leading greater inequalities work division Here, we use Gini index measure inequality at level...
Light masking has been studied almost exclusively in the laboratory. The authors populated four field enclosures with locally coexisting nocturnal Acomys cahirinus and diurnal A. russatus, monitored their body temperatures (Tb) using implanted temperature-sensitive radio transmitters. A 3-h light pulse was initiated at beginning of two consecutive nights; preceding nights were controls. Tb calculated activity levels decreased significantly during pulse, demonstrating a negative response...
Density regulation influences population dynamics through its effects on demographic rates and consequently constitutes a key mechanism explaining the response of organisms to environmental changes. Yet, it is difficult establish exact form density dependence from empirical data. Here, we developed an individual‐based model explore how resource limitation behavioural processes determine spatial structure white stork Ciconia ciconia populations regulate reproductive rates. We found that...
Abstract We studied the relationship between sequence of foraging, energy acquired and use torpor as an energy‐balancing strategy in diurnally active desert golden spiny mice. hypothesised that individuals arrive earlier to forage will get higher returns consequently spend less time torpid. If is case, then early foragers can be viewed more successful; if same repeatedly early, they are likely have fitness under conditions resource limitation. For first time, we show a foraging amount...
Abstract Although many birds are socially monogamous, most (>75%) studied species not strictly genetically especially under high breeding density. We used molecular tools to reevaluate the reproductive strategy of monogamous white stork ( Ciconia ciconia ) and examined local density effects. DNA samples nestlings (Germany, Spain) were genotyped assigned relationships using a two-program maximum likelihood classification. Relationships successfully classified in 79.2% German (n = 120)...
Seasonal animal migration is a widespread phenomenon. At the species level, it has been shown that many migratory track similar climatic conditions throughout year. However, remains unclear whether such niche tracking pattern direct consequence of individual behaviour or emerges at population level through behavioural variability. Here, we estimated seasonal overlap and central European white storks ( Ciconia ciconia ). We quantified for both weather climate to control different...
Abstract Context Remote sensing time series (hereafter called series) and telemetry data are widely used to study animal-environment relationships. However, both sources subject uncertainties that can cause erroneous conclusions. To date, only the uncertainty of be estimated, e.g. through movement modelling, while information on is often lacking. Consequently, it remains challenging assess if how results studies affected by cumulative data. Objectives address this gap, we proposed an...
Abstract Supervised learning of behavioural modes from body acceleration data has become a widely used research tool in Behavioural Ecology over the past decade. One primary usages this is to estimate time budgets distribution behaviours as predicted by model. These serve key parameters test predictions about variation animal behaviour. In paper we show that widespread computation biased, due ignoring classification model confusion probabilities. Next, introduce matrix correction for —a...
The field of Movement Ecology is experiencing a period rapid growth in availability data, and like many other fields turning to data science for tools methods cope with the new challenges opportunities that this presents. One rich interesting source bio-logger. These small electronic devices are attached animals free roam their natural habitats, report back readings from multiple sensors, including GPS accelerometer bursts. A common use supervised learning behavioral modes. However, there...
Abstract Studying the causes and consequences of route selection in animal migration is important for understanding evolution migratory systems how they may be affected by environmental factors at various spatial temporal scales. One key decision during whether to cross “high transport cost” areas, or circumvent them. Soaring birds face this choice when encountering waterbodies where convective updrafts are weak scarce. Crossing these requires flying using energetically costly flapping...
Abstract Sparring by male giraffes has been commonly reported since its first description in 1958 and is believed to play a role establishing dominance hierarchies. However, despite being often documented, quantitative investigations of sparring behaviour are currently lacking. Here, we investigate the factors affecting frequency, duration intensity bouts population Giraffa camelopardalis giraffa living on private fenced reserve Limpopo, South Africa. We show that were most frequently...