Animal Vocal Communication and Behavior

This study analyzes the vocal behavior and breeding phenology of Nilgiri Flycatchers using automated recording and detection, finding seasonal singing peaks and diurnal patterns.

This study uses machine learning to analyze Lark Sparrow songs and finds that ecoregion and state explain variation in their songs.

This study investigates nocturnal vocal responses of diurnal birds to conspecific song playback, finding that three species respond vocally, suggesting nocturnal social communication functions.

The paper shows that vocal call categorization in Danionella is distributed across multiple brain regions rather than localized to a single area.

The paper uses song analysis to identify four species within the Ruddy Foliage-gleaner complex, revealing paraphyly and taxonomic splits.

This study examines how wolf packs respond to synchronous vs. asynchronous chorus howls from unfamiliar packs, finding that synchronous howls led to greater spatial withdrawal, while asynchronous howls prompted more investigative behavior.

This paper shows that zebra finches produce rhythmic head gestures synchronized with their songs, providing a model for studying multimodal communication and rhythmic synchronization in vocal-learning species.

The paper shows that social behaviors, not vocal features, predict vocal turn-taking in marmosets, highlighting multimodal coordination in primate communication.

This paper develops a deep learning framework for Neotropical birdsong classification and analyzes factors affecting classification performance using phylogenetic models.

The paper quantifies song complexity in 4,940 bird species and finds a latitudinal gradient linked to ecological and evolutionary factors rather than traditional explanations.

This study shows marmosets adjust their vocalizations to match partners, indicating normative expectations in social communication.

This study shows that the songbird brain can adjust individual neurons with millisecond precision using dopamine signals, challenging the idea that reinforcement learning is slow and imprecise.

This study identifies vocal biomarkers of aging and Parkinson's disease in zebra finches using acoustic analysis of song, revealing distinct patterns in spectral and intensity features between aging and disease states.

In three singing canaries, sliding-window cross-correlation with surrogate testing shows HVC multi-unit activity and song envelope couple at a few preferred lags (positive, near-zero, negative), correlated or anticorrelated.

The paper compares synaptic and current input properties of aromatase and nonaromatase neurons in zebra finch auditory forebrain and finds no significant differences in their electrophysiological characteristics.

The paper examines the structure and functions of duets in Galapagos Yellow Warblers, finding that females predominantly initiate and coordinate call answers, while male replies are less frequent and less coordinated.

This study shows marmoset phee calls encode external events like food context beyond emotional arousal and valence, even without an immediate stimulus.

The paper shows that dopamine transients at song motif onset are needed to maintain accurate adult zebra finch song, a naturally learned skilled behavior.

The study finds that song sparrows do not distinguish between current and historical songs despite detectable changes in song structure over 27-29 years.

The paper tests the causal role of the auditory forebrain and ERK/mTOR signaling in female sensory song learning in zebra finches, finding mTOR signaling is sex-specific.

This study shows that Western Australian magpies comprehend complex call sequences before they can produce them, suggesting rapid learning or innate understanding of sequence meaning.

The paper investigates whether vocal building blocks in magpies are innate or learned, finding no acoustic development over time and supporting innate elements underpinning call sequences.

The paper develops a lightweight acoustic classifier for detecting rare vocalisations of the invasive small Indian mongoose using sparse data, but finds limited utility due to small training datasets.

The paper shows Western Australian magpies use multi-level structured ordering rules in their call sequences, indicating learned syntactic structure.

The paper examines context-dependent vocal behavior in Emerald glass frogs, finding that males adjust call characteristics based on social context.

The paper compares acoustic space use in human and primate vocalizations, finding speech and song occupy less acoustic space than non-linguistic human vocalizations and are not distinct from non-human primates.

The paper reviews evidence for the acoustic space partitioning hypothesis, finding strong support but highlighting methodological gaps and alternative explanations for signal differentiation.

The paper examines volubility and vocal coordination in common marmosets under different experimental conditions, finding call-type-specific patterns of vocal contagion and recruitment.

This study optimizes CNNs for bird identification in urban tropical ecosystems and compares their performance to traditional methods, finding higher species richness estimates from CNNs.

The paper investigates how pair bonding in songbirds alters neural responses to familiar songs in specific auditory and integrative circuits, with a potential role for dopamine.