A5002522367- Primate Behavior and Ecology
- Animal Vocal Communication and Behavior
- Animal Behavior and Reproduction
- Livestock and Poultry Management
- Wildlife Ecology and Conservation
- Human-Animal Interaction Studies
- Marine animal studies overview
- Bat Biology and Ecology Studies
- Advanced Chemical Sensor Technologies
- Agriculture and Rural Development Research
- Avian ecology and behavior
- Child and Animal Learning Development
- Cell Image Analysis Techniques
- Gene expression and cancer classification
- IoT Networks and Protocols
- Evolution and Paleontology Studies
- Indoor and Outdoor Localization Technologies
- Insect and Arachnid Ecology and Behavior
- Animal and Plant Science Education
- Language and cultural evolution
- Fish Ecology and Management Studies
- Speech and Audio Processing
- Evolutionary Psychology and Human Behavior
- Pleistocene-Era Hominins and Archaeology
- Music and Audio Processing
Max Planck Institute of Animal Behavior
2019-2024
University of Vienna
2023-2024
Complexity Science Hub Vienna
2024
Wienerberger (Czechia)
2023
University of St Andrews
2015-2021
Google (United States)
2016
Darmstadt University of Applied Sciences
1988
Birds in the bin It is by now well accepted that humans are not only animal to have complex culture, and we also found ecological novelty can lead cultural innovation. Klump et al. documented emergence of an evolving set behaviors response human-generated resources, specifically garbage bins, sulphur-crested cockatoos. This finding both documents existence spread foraging culture among parrots, a lineage known for high-level cognitive function, illuminates how innovation regional distinct...
Abstract Biologging devices are deployed on animals to collect ultra‐fine‐scale movement data that reveal subsecond patterns in locomotion or long‐term motion and space use. Often these two types, although complementary, rarely collected within the same study, given limiting factors of memory space, power requirements need retrieve stored from animals. requires a revolutionary advancement networking overcome restrictions constrain big collection; for continuous recording remote download...
Human-modified environments offer novel resources, but their exploitation can be a source of human-wildlife conflict. Residents Sydney have reported increasing cases bin-opening behavior by sulphur-crested cockatoos (Cacatua galerita), with evidence this is socially learned between birds. Households protected bins, yet to defeat these defences. In response, residents increase defence-level, setting the stage for behavioral "arms race". Here, we investigate arms race combining field...
‘Betty’ the New Caledonian crow astonished world when she ‘spontaneously’ bent straight pieces of garden wire into hooked foraging tools. Recent field experiments have revealed that tool bending is part species' natural behavioural repertoire, providing important context for interpreting Betty's iconic wire-bending feat. More generally, this discovery provides a compelling illustration how history observations can inform laboratory-based research cognitive capacities non-human animals.
New Caledonian crows use a range of foraging tools, and are the only non-human species known to craft hooks. Based on small number observations, their manufacture hooked stick tools has previously been described as complex, multi-stage process. Tool behaviour is shaped by genetic predispositions, individual social learning, and/or ecological influences, but disentangling relative contributions these factors remains major research challenge. The properties raw materials an obvious, largely...
Functional tool use requires the selection of appropriate raw materials. New Caledonian crows Corvus moneduloides are known for their extraordinary tool-making behaviour, including crafting hooked stick tools from branched vegetation. We describe a surprisingly strong between-site difference in plant materials used by wild to manufacture these tools: at one study site branches non-native shrub Desmanthus virgatus, whereas only approximately 7 km away, birds apparently ignore this material...
Abstract Bioacoustic research spans a wide range of biological questions and applications, relying on identification target species or smaller acoustic units, such as distinct call types. However, manually identifying the signal interest is time-intensive, error-prone, becomes unfeasible with large data volumes. Therefore, machine-driven algorithms are increasingly applied to various bioacoustic challenges. Nevertheless, biologists still have major difficulties trying transfer existing...
Several animal species use tools for foraging, such as sticks to extract embedded arthropods and honey, or stones crack open nuts eggs. While providing access nutritious foods, these behaviours may incur significant costs, the time energy spent searching for, manufacturing transporting tools. These costs can be reduced by re-using tools, keeping them safe when not needed. We experimentally investigated what New Caledonian crows do with their between successive prey extractions, whether they...
Animals that manufacture foraging tools face the challenge of identifying suitable raw materials among a multitude options. New Caledonian crows exhibit strong population-specific material preferences for hooked stick tools, but it is unknown how they identify their favourite plants. We investigated experimentally whether pay attention to stems plants (from which are made) and/or leaves (which usually discarded during may enable rapid and reliable species identification at distance)....
Abstract A preference to associate with kin facilitates inclusive fitness benefits, and increased tolerance or cooperation between may be an added benefit of group living. Many species exhibit preferred associations kin; however, it is often hard disentangle active preferences from passive overlap, for example caused by limited dispersal inheritance social position. parrots systems consisting pair‐bonded individuals foraging in variably sized fission‐fusion flocks within larger communal...
Very few animal species habitually make and use foraging tools. We recently discovered that the Hawaiian crow is a highly skilled, natural tool user. Most captive adults in our experiment spontaneously used sticks to access out-of-reach food from range of extraction tasks, exhibiting surprising degree dexterity. Moreover, many birds modified tools before or during deployment, some even manufactured raw materials. In this invited addendum article, we describe discuss these observations more...
Ballistic predation is a rare foraging adaptation: in fishes, most attention has focused on single genus, the archerfish, known to manipulate water shoot down prey above surface. However, several gourami species also exhibit apparently similar 'shooting' behaviour, spitting up 5 cm In series of experiments, we explored shooting behaviour and aspects its significance as ability dwarf (Trichogaster lalius). We investigated sex differences abilities determine whether related sex-specific bubble...
Some animals fashion tools or constructions out of plant materials to aid foraging, reproduction, self-maintenance, protection. Their choice raw can affect the structure and properties resulting artifacts, with considerable fitness consequences. Documenting animals’ material preferences is challenging, however, as manufacture behavior often difficult observe directly, may be processed so heavily that they lack identifying features. Here, we use DNA barcoding identify, from just a few...
The temporary storage and re-use of tools can significantly enhance foraging efficiency. New Caledonian crows in one our study populations use two types stick - hooked non-hooked which differ raw material, manufacture costs, performance. Using a large sample wild-caught, temporarily captive crows, we investigated experimentally whether individuals prefer tool type over the other when given choice they take better care their preferred between successive episodes use, safely storing them...
Summary To better understand how vocalisations are used during interactions of multiple individuals, studies increasingly deploying on-board devices with a microphone on each animal. The resulting recordings extremely challenging to analyse, since clocks drift non-linearly and record the non-focal individuals as well noise. Here we address this issue callsync , an R package designed align recordings, detect assign caller, trace fundamental frequency, filter out noise perform basic analysis...
Abstract To better understand how vocalisations are used during interactions of multiple individuals, studies increasingly deploying on‐board devices with a microphone on each animal. The resulting recordings extremely challenging to analyse, since clocks drift non‐linearly and record the non‐focal individuals as well noise. Here we address this issue callsync , an R package designed align recordings, detect assign caller, trace fundamental frequency, filter out noise perform basic analysis...
Abstract A preference to associate with kin facilitates inclusive fitness benefits, and increased tolerance or cooperation between may be an added benefit of group living. Many species exhibit preferred associations kin, however it is often hard disentangle active preferences from passive overlap, for example caused by limited dispersal inheritance social position. parrots systems consisting pair-bonded individuals foraging in variably sized fission-fusion flocks within larger communal...
Tool-using crows, culture, and what it means to be human