A5068091619- Animal Behavior and Reproduction
- Animal Vocal Communication and Behavior
- Marine animal studies overview
- Avian ecology and behavior
- Amphibian and Reptile Biology
- Plant and animal studies
- Neural dynamics and brain function
- Wildlife Ecology and Conservation
- Neurobiology and Insect Physiology Research
- Signaling Pathways in Disease
- Memory and Neural Mechanisms
- Fish biology, ecology, and behavior
- Visual perception and processing mechanisms
- Zebrafish Biomedical Research Applications
- Peptidase Inhibition and Analysis
- Stress Responses and Cortisol
- Receptor Mechanisms and Signaling
- Ubiquitin and proteasome pathways
- Protease and Inhibitor Mechanisms
- Multisensory perception and integration
- Fish Ecology and Management Studies
- Cancer-related gene regulation
Vassar College
2014-2025
Purdue University West Lafayette
2009-2015
Georgia State University
2012-2014
State Street (United States)
2014
University of California, Irvine
2010-2011
California State University, Long Beach
2008-2009
In birds, differences in the extent and position of binocular visual field reflect adaptations to varying foraging strategies, lateral portion may anti‐predator strategies. The goal this study was describe compare fields two ground‐foraging passerines, House Finch Carpodacus mexicanus Sparrow Passer domesticus . We found that both species have a type is associated with accurate control bill when pecking. Both eye movements relatively large amplitude, which can produce substantial variations...
Generalization allows previous experience to adaptively guide behavior when conditions change. The infralimbic (IL) subregion of the ventromedial prefrontal cortex plays a known role in generalization processes, although mechanisms remain unclear. A basic physical unit memory storage and expression brain is sparse, distributed group neurons as an engram. Here, we set out determine whether engram established during learning contributes generalized responses IL. was tested male female mice by...
Animals have evolved complex auditory systems to extract acoustic information from natural environmental noise, yet they are challenged by rising levels of novel anthropogenic noise. Songbirds adjust their vocal production in response increasing but processing signals noise remains understudied. Auditory characteristics, including filter bandwidth, efficiency, and critical ratios (level-independent signal-to-noise at threshold) likely influence behavioral responses Here, we investigated the...
Abstract Mutations in the Drosophila variable nurse cells ( vnc ) gene result female sterility and oogenesis defects, including egg chambers with too many or few cells. We show that corresponds to Arrest Defective1 Ard1 encodes catalytic subunit of NatA, major N‐terminal acetyl‐transferase complex. While acetylation is one most prevalent covalent protein modifications eukaryotes, analysis its role development has been challenging since mutants compromise NatA activity have not described any...
Many species of songbirds exhibit dramatic seasonal variation in song output. Recent evidence suggests that changes auditory processing are coincident with vocal Here, we show, for the first time, frequency selectivity and temporal resolution songbird periphery change seasonally a sex-specific manner. Male female house sparrows (Passer domesticus) did not differ their sensitivity during non-breeding season, nor they resolution. By contrast, showed enhanced breeding which was matched by...
Summary The evolution of vocal signals can be constrained by a host factors including habitat effects on sound propagation, morphology sound‐producing structures and phylogenetic relationships among species. Here, we asked whether auditory sensitivity over broad range frequencies correlates with the spectral content conspecific vocalizations, or it is overall structure propagation relatedness We studied nine New World sparrows (Passeriformes: Emberizidae) three open‐habitat species,...
For sit-and-wait predators, a key factor influencing foraging decisions is the ability to detect and track prey, which expected vary with physical light properties of environment. We assessed how changes in visual prey availability altered perch selection search activity (head-movement rate bout length) Black Phoebe (Sayornis nigricans), flycatcher. used an observational approach by studying individuals areas that varied ecological factors interest across urbanized landscape. Phoebes...
The ability of a receiver to detect signal is product the characteristics at sender, habitat-specific degradation signal, and properties receiver's sensory system. Active space describes maximum distance which with given system can in habitat. Here effect habitat structure urbanization on brown-headed cowbird (Molothrus ater) perched song active was explored. affected by both type level urbanization. High frequency (4 6 kHz) portions resulted space. Surprisingly, largest open urban...
We investigated whether hearing advertisement calls over several nights, as happens in natural frog choruses, modified the responses of peripheral auditory system green treefrog, Hyla cinerea . Using evoked potentials (AEP), we found that exposure to 10 nights a simulated male chorus lowered thresholds males and females, while random tones had no effect males, but did result lower females. The threshold change was larger at frequencies stimulating amphibian papilla than higher basilar...
There is a long history in neuroethology of investigating how communication signals influence the brain and behavior. It has become increasingly clear that areas associated with sensory processing are plastic adults this plasticity related to reproductive condition. However, role signal reception adult auditory received relatively little attention. Here, we investigated whether (a frog chorus) could enhance responsiveness system future single male call). We found animals had been exposed 10...
Successful communication between a sender and receiver is critical for coordinating behaviors organisms. This coordination can be disturbed by anthropogenic noise, which has been shown to alter vocal signal production in many species of birds. In addition affecting senders, noise may also reception behavioral response. Here we investigated the effects on response acoustic signals mixed-species flocks songbirds. We used playbacks Tufted Titmouse (Baeolophus bicolor) chick-a-dee calls local...
The sender-receiver matching hypothesis predicts that species-specific features of vocalizations will be reflected in auditory processing. This has most often been invoked to explain correlations between vocal frequency ranges and the range sensitivity; however, it could apply other structural features, such as rise time stimuli. We explored this five songbird species vary times their vocalizations. recorded evoked potentials (AEPs) onset sustained portions stimuli varied both time. AEPs are...