Judith Janisch
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View article: Protocol to record and analyze primate leaping in three dimensions in the wild
Protocol to record and analyze primate leaping in three dimensions in the wild Open
Several studies comparing primate locomotion under lab versus field conditions have shown the importance of implementing both types of studies, as each has their advantages and disadvantages. However, three‐dimensional (3D) motion capture …
View article: Pump and sway: Wild primates use compliant supports as a tool to augment leaping in the canopy
Pump and sway: Wild primates use compliant supports as a tool to augment leaping in the canopy Open
Objectives Despite qualitative observations of wild primates pumping branches before leaping across gaps in the canopy, most studies have suggested that support compliance increases the energetic cost of arboreal leaping, thus limiting lea…
View article: From such great heights: The effects of substrate height and the perception of risk on lemur locomotor mechanics
From such great heights: The effects of substrate height and the perception of risk on lemur locomotor mechanics Open
Objectives An accident during arboreal locomotion can lead to risky falls, but it remains unclear that the extent to which primates, as adept arborealists, change their locomotion in response to the perceived risk of moving on high support…
View article: Ecological and phylogenetic influences on limb joint kinematics in wild primates
Ecological and phylogenetic influences on limb joint kinematics in wild primates Open
Arboreal locomotion is precarious and places multiple challenges upon stability. Studies have shown that captive primates respond to narrower and steeper supports by flexing limb joints and adopting a compliant gait. We tested whether thes…
View article: From such great heights: lemur limb configurations increase stability on higher substrates
From such great heights: lemur limb configurations increase stability on higher substrates Open
An accident during arboreal locomotion can lead to risky falls, but little is known how primates, as adept arborealists, might change their locomotion to accommodate increased substrate height. By using more stable forms of locomotion on h…
View article: Dataset and R code for "Pump and sway: wild primates use compliant supports as a tool to augment leaping in the canopy"
Dataset and R code for "Pump and sway: wild primates use compliant supports as a tool to augment leaping in the canopy" Open
The arboreal environment is constructed of complex, discontinuous supports. The shortest distances between trees typically lie between compliant terminal branches, making crossing difficult. Despite qualitative observations of wild primate…
View article: Lemur kinematic and substrate morphology data
Lemur kinematic and substrate morphology data Open
An accident during arboreal locomotion can lead to risky falls, but little is known how primates, as adept arborealists, might change their locomotion to accommodate increased substrate height. By using more stable forms of locomotion on h…
View article: Additional dataset for "Pump and sway: wild primates use compliant supports as a tool to augment leaping in the canopy"
Additional dataset for "Pump and sway: wild primates use compliant supports as a tool to augment leaping in the canopy" Open
The arboreal environment is constructed of complex, discontinuous supports. The shortest distances between trees typically lie between compliant terminal branches, making crossing difficult. Despite qualitative observations of wild primate…
View article: Datasets and R code for "Ecological and phylogenetic influences on limb joint kinematics in wild primates"
Datasets and R code for "Ecological and phylogenetic influences on limb joint kinematics in wild primates" Open
R code and datasets relating to "Ecological and phylogenetic influences on limb joint kinematics in wild primates". Arboreal locomotion is precarious and places multiple challenges upon stability when animals are moving over narrow, compl…
View article: Video Recording and Analysis of Avian Movements and Behavior: Insights from Courtship Case Studies
Video Recording and Analysis of Avian Movements and Behavior: Insights from Courtship Case Studies Open
Video recordings are useful tools for advancing our understanding of animal movements and behavior. Over the past decades, a burgeoning area of behavioral research has put forward innovative methods to investigate animal movement using vid…
View article: Deciphering choreographies of elaborate courtship displays of golden‐collared manakins using markerless motion capture
Deciphering choreographies of elaborate courtship displays of golden‐collared manakins using markerless motion capture Open
Courtship displays are complex behaviours that evolve mainly through sexual selection. Males of golden‐collared manakins ( Manacus vitellinus ) gather in leks and perform very elaborate courtship displays in forest courts to attract female…
View article: Behavioural flexibility in the courtship dance of golden-collared manakins, Manacus vitellinus
Behavioural flexibility in the courtship dance of golden-collared manakins, Manacus vitellinus Open
Courtship displays have been traditionally considered stereotyped behaviours. Many elaborate courtships are displayed in specific locations or in courts prepared by the displaying individuals. Sudden environmental events may alter the spat…
View article: Territorial raven pairs are sensitive to structural changes in simulated acoustic displays of conspecifics
Territorial raven pairs are sensitive to structural changes in simulated acoustic displays of conspecifics Open
Human language involves combining items into meaningful, syntactically structured wholes. The evolutionary origin of syntactic abilities has been investigated by testing pattern perception capacities in nonhuman animals. New World primates…