- Animal Vocal Communication and Behavior
- Animal Behavior and Reproduction
- Amphibian and Reptile Biology
- Marine animal studies overview
- Bat Biology and Ecology Studies
- Plant and animal studies
- Primate Behavior and Ecology
- Hearing Loss and Rehabilitation
- Wildlife Ecology and Conservation
- Neurobiology and Insect Physiology Research
- Animal and Plant Science Education
- Noise Effects and Management
- Species Distribution and Climate Change
- Neural dynamics and brain function
- Engineering Education and Pedagogy
- Neuroscience and Music Perception
- Plant and Biological Electrophysiology Studies
- Lepidoptera: Biology and Taxonomy
- Optical Coherence Tomography Applications
- Insect and Arachnid Ecology and Behavior
- Glaucoma and retinal disorders
- Drilling and Well Engineering
- Oil and Gas Production Techniques
- Action Observation and Synchronization
- Plant biochemistry and biosynthesis
University of Minnesota
2016-2025
Twin Cities Orthopedics
2020-2024
Minot State University
2021-2023
Ecologie & Evolution
2004-2013
University of Copenhagen
2013
Carl von Ossietzky Universität Oldenburg
2003-2007
Massachusetts Institute of Technology
2005
University of Missouri
1996-2003
Butler University
1996
In responses to broadcasts of conspecific advertisement calls, male green frogs (Rana clamitans) lower the dominant frequency their calls. Because is negatively correlated with body size in frogs, alteration provides a means potentially exaggerating during territorial contests. field playback experiments, we broadcast synthetic stimuli representing small, medium, or large intruders residents. We tested hypotheses that males use provide honest signals size-independent fighting ability,...
Individuals of many territorial species discriminate between familiar neighbors and unfamiliar strangers based on individual differences in acoustic signals. Many anuran amphibians are use primarily communication during social interactions, but evidence for acoustically mediated discrimination is available only one species. As a first step research designed to investigate second frog, we examined patterns within‐male among‐male variability 198 advertisement calls 20 male green frogs, Rana...
Auditory stream segregation refers to the perceptual grouping of sounds, form coherent representations objects in acoustic scene, and is a fundamental aspect hearing speech perception. The simple interleaved tone sequences has been studied humans European starlings ( Sturnus vulgaris) using 2 alternating tones differing frequency (ABA-ABA-ABA-…). A B into separate auditory streams believed be promoted by preattentive processes that increase separation excitation patterns along tonotopic...
Some territorial animals display low levels of aggression towards a familiar neighbour in its usual territory, but exhibit high neighbours novel locations and unfamiliar individuals. Here, we report results from field playback study that investigated whether males the North American bullfrog (Rana catesbeiana) could discriminate between acoustic signals simulated strangers absence contextual cues associated with specific location. Following repeated exposures to synthetic calls particular...
Vocal communication in crowded social environments is a difficult problem for both humans and nonhuman animals. Yet many important behaviors require listeners to detect, recognize, discriminate among signals complex acoustic milieu comprising the overlapping of multiple individuals, often species. Humans exploit relatively small number cues segregate voices (as well as other mixtures concurrent sounds, like polyphonic music). By comparison, we know little about how animals are adapted solve...
Abstract We investigated vocal communication between males in a central Indiana population of the green frog, Rana clamitans. Three playback experiments were conducted. In first test, we broadcasted single-note and multiple-note conspecific advertisement call control (Acris crepitans) to calling males. response stimuli, increased number calls made per minute, note duration, lowered dominant frequency call, often approached speaker platform. second designed examine changes sound pressure...
For both humans and other animals, the abilities to integrate separate sound elements over time into coherent perceptual representations, or ‘auditory streams’, segregate these auditory streams from interleaved sounds are critical for hearing vocal communication. In European starlings <i>(Sturnus vulgaris)</i> ability perceptually a simple tone sequence comprised of two alternating tones differing in frequency (ABA–ABA–ABA–...) A B is promoted at larger separations (ΔF) between...