- Avian ecology and behavior
- Wildlife Ecology and Conservation
- Animal Behavior and Reproduction
- Animal Vocal Communication and Behavior
- Species Distribution and Climate Change
- Bird parasitology and diseases
- Primate Behavior and Ecology
- Genetic diversity and population structure
- Animal Ecology and Behavior Studies
- Plant and animal studies
- Rangeland and Wildlife Management
- Ecology and Vegetation Dynamics Studies
- Insect and Arachnid Ecology and Behavior
- Animal Behavior and Welfare Studies
- Wildlife Conservation and Criminology Analyses
- Wildlife-Road Interactions and Conservation
- Evolutionary Game Theory and Cooperation
- Turtle Biology and Conservation
- Remote Sensing and LiDAR Applications
- Aerospace and Aviation Technology
- Animal and Plant Science Education
- Biomimetic flight and propulsion mechanisms
- Probiotics and Fermented Foods
- Aerodynamics and Fluid Dynamics Research
- Polar Research and Ecology
Waldrappteam
2014-2024
University of Vienna
1999-2024
University of Bern
2020
University of Veterinary Medicine Vienna
2020
Tirol Kliniken
2016
Universität Trier
2016
University of Applied Sciences Mainz
2016
Humboldt State University
2015
Konrad Lorenz Institute for Evolution and Cognition Research
1999-2002
Significance Cooperation in animals is an enigma because it contravenes the basic notion that evolution favors selfish genes promote only their own well-being. Bird migration organized V-shaped or echelon formations constitutes such a cooperation dilemma. We show juvenile Northern bald ibis ( Geronticus eremita ) cooperate by taking turns and precisely matching times they spend advantageous trailing position disadvantageous front position. This time done on pairwise level. Furthermore, we...
Abstract Wind turbines and power lines can cause bird mortality due to collision or electrocution. The biodiversity impacts of energy infrastructure (EI) be minimised through effective landscape‐scale planning mitigation. identification high‐vulnerability areas is urgently needed assess potential cumulative EI while supporting the transition zero carbon energy. We collected GPS location data from 1,454 birds 27 species susceptible within Europe North Africa identified where tracked are most...
Many migrating birds undertake extraordinary long flights. How are able to perform such endurance flights of over 100-hour durations is still poorly understood. We examined energy expenditure and physiological changes in Northern Bald Ibis Geronticus eremite during natural using trained follow an ultra-light aircraft. Because these were tame, with foster parents, we bleed them immediately prior after each flight. Flight duration was experimentally designed ranging between one almost four...
Abstract The advent of generative Artificial Intelligence (AI) has brought about a significant shift in the way works are created, with blurring boundaries between human and machine-driven creation processes becoming prominent challenge. This leads to question whether authorship such exists and, if so, whom it should be attributed to. article focusses on an analysis existing case law Court Justice European Union selected EU Member State courts, order find indications what consider when...
A considerable proportion of the world's bird species undertake seasonal long-distance migrations. These journeys are energetically demanding. Two major behavioural means to reduce energy expenditure have been suggested: use thermal uplifts for a soaring-gliding migration style and travelling in echelon or V-shaped formation. Both strategies immediate consequences social organization birds as they either cause large aggregations require small stable groups. Here, we first discuss those...
From the perspective of zoological institutions reintroduction projects offer many possibilities to link conservation and research programmes. An example multi‐layered diverse contributions that in general and, specifically, Vienna Zoo, Austria, can make is Northern bald ibis Geronticus eremita central Europe. The involvement ranges from provision eggs or birds for release trials, financial advocacy support, including with government agencies non‐governmental organizations. Through at a...
Abstract The poor survival rate of immature northern bald ibises Geronticus eremita during their first years spent outside the natal site is driving last known wild colony migratory eastern population to extinction. To inform emergency conservation action for this Critically Endangered species we investigated distribution range and behaviour birds in passage wintering areas, threats which they are subject. We integrated recent satellite telemetry data with visual observations spanning 130...
The investigation of the emergent collective behaviour in flying birds is a challenging task, yet it has always fascinated scientists from different disciplines. In attempt studying and modelling line formation, we collected high-precision position data 29 free-flying northern bald ibises (
Abstract Background The impact of biologging devices on the aerodynamics or hydrodynamics animals is still poorly understood. This stands in marked contrast to ever more extensive use such technologies wild-living animals. Recently, increasing concerns have been raised about impairing effects these concerned. In early days biotelemetry, attention was focused solely reducing weight, but now aerodynamic are also increasingly being considered. To investigate effects, we trained Northern Bald...
The critically endangered Northern bald ibis (Geronticus eremita) is a migratory bird that became extinct in Europe centuries ago. Since 2014, the subject to an intensive rehabilitation and conservation regime aiming reintroduce its original distribution range Central concurrently maintain health increase population size. Hitherto, virtually nothing known about microbial communities associated with species; information pivotal for veterinary management of these birds. Hence, present study...
Abstract Background In this paper, we present evidence that biologging is strongly correlated with eye irritation, sometimes severely impairing effects. A migratory population of the Northern Bald Ibis ( Geronticus eremita , NBI) reintroduced in Europe, course a LIFE + project. Since 2014, all individuals have been equipped GPS-devices. Remote monitoring allows implementation focussed measures against major mortality causes. Methods Initially birds carried battery-powered devices, fixed on...
For the past 20 years, reintroduction efforts have been underway to reestablish a migratory population of Northern Bald Ibises (Geronticus eremita) in Central Europe, which now consists more than 250 birds. They breed both north and south Alps migrate common wintering ground Tuscany. Recently, start autumn migration is increasingly delayed, correlates with extended warm periods autumn. Later year, however, birds no longer find sufficient thermals cross remain northern Alpine foothills. In...
The Northern Bald Ibis is one of the rarest bird species, extinct in Europe for 400 years and critically endangered worldwide. European Union-co-financed LIFE+ project "Reason Hope - Reintroduction Europe" aims to reintroduce species (Germany, Austria, Italy). In order obtain information on genetic diversity within zoo colonies reintroduced population, 15 polymorphic microsatellite markers, specific Ibis, Geronticus eremita (Linnaeus, 1785), have been isolated from next-generation sequencing...
Abstract The northern bald ibis Geronticus eremita was once widespread throughout the Middle East, Africa, and southern central Europe. Habitat destruction, persecution impacts of pesticides have led to its disappearance from most former range. It disappeared Europe > 400 years ago, but has persisted as a relict slowly growing breeding population in Morocco, where c. 700 wild birds all ages remain. In Algeria, last confirmed 1984; Turkey fully 1989, remains semi-wild conditions. Syria...
Abstract The northern bald ibis Geronticus eremita disappeared from Europe in the Middle Ages. Since 2003 a migratory population has been reintroduced Central Europe. We conducted demographic analyses of survival and reproduction 384 ibises over period 12 years (2008–2019). These data also formed basis for viability analysis simulating possible future development under different scenarios. analysed life stage-specific rates, rearing protocols colonies, influence stochastic catastrophic...
Abstract Migratory journeys represent an energetic challenge for many long-distance migrants. The choice of flight times, migration route, altitude, travelling speed, wingbeat patterns, soaring as well formation can all affect the energy expenditure journey. We monitored patterns two Northern Bald Ibises ( Geronticus eremita ) equipped with data loggers while crossing Alps during a human-led from southern Germany to Tuscany. observed that birds used intermittent flapping pattern, where...
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We trace the history of endangered Northern Bald Ibis through different epochs to present. A particular focus is placed on its life in and disappearance from ancient Egypt, where bird attained great cultural religious significance, modern endeavour re-wild species. Due characteristic appearance, behaviour habitat species as well need for open foraging areas, a close mutualistic relationship between humans birds was formed other cultures. clear benefit availability feeding habitats, which...