Michael J. Ryan
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View article: Cadences of the collective: conspecific stimulation patterns interact with endogenous rhythms to cue socially mediated response shifts
Cadences of the collective: conspecific stimulation patterns interact with endogenous rhythms to cue socially mediated response shifts Open
Many animals form behavioral collectives, and optimal interaction strategies often differ across social contexts. Sensory scenes generated by many interacting conspecifics are complex. Thus, maintaining socially-calibrated responses requir…
View article: Physics-informed machine learning surrogate for scalable simulation of thermal histories during wire-arc directed energy deposition
Physics-informed machine learning surrogate for scalable simulation of thermal histories during wire-arc directed energy deposition Open
View article: AudioJudge: Understanding What Works in Large Audio Model Based Speech Evaluation
AudioJudge: Understanding What Works in Large Audio Model Based Speech Evaluation Open
Current speech evaluation suffers from two critical limitations: the need and difficulty of designing specialized systems targeting individual audio characteristics, and poor correlation between automatic evaluation methods and human prefe…
View article: Physics-informed machine learning surrogate for scalable simulation of thermal histories during wire-arc directed energy deposition
Physics-informed machine learning surrogate for scalable simulation of thermal histories during wire-arc directed energy deposition Open
Wire-arc directed energy deposition (DED) has emerged as a promising additive manufacturing (AM) technology for large-scale structural engineering applications. However, the complex thermal dynamics inherent to the process present challeng…
View article: Humans share acoustic preferences with other animals
Humans share acoustic preferences with other animals Open
Many animals produce sounds during courtship and receivers prefer some sounds over others. Shared ancestry and convergent evolution may generate similarities in preference across species and could underlie Darwin’s conjecture that some ani…
View article: If memory serves: Multisensory male display improves female memory during mate sampling
If memory serves: Multisensory male display improves female memory during mate sampling Open
Across many taxa, males gather in leks to perform multisensory courtship displays for females. At a lek, changes in the sensory scene over the course of mate evaluation are inevitable. This dynamic nature makes a female’s ability to recall…
View article: Cadences of the Collective: Conspecific Stimulation Patterns Interact with Endogenous Rhythms to Cue Socially Mediated Response Shifts
Cadences of the Collective: Conspecific Stimulation Patterns Interact with Endogenous Rhythms to Cue Socially Mediated Response Shifts Open
Many animals form behavioral collectives, and optimal interaction patterns often differ across social contexts. Sensory scenes generated by many interacting conspecifics are complex. Thus, maintaining socially-calibrated interaction patter…
View article: Mind the Gap: Static and Interactive Evaluations of Large Audio Models
Mind the Gap: Static and Interactive Evaluations of Large Audio Models Open
View article: Rapid cross-generational changes in morphology and mate choice following an extreme climatic event
Rapid cross-generational changes in morphology and mate choice following an extreme climatic event Open
View article: Sensory-motor tuning allows generic features of conspecific acoustic scenes to guide rapid, adaptive, call-timing responses in túngara frogs
Sensory-motor tuning allows generic features of conspecific acoustic scenes to guide rapid, adaptive, call-timing responses in túngara frogs Open
Male frogs court females from within crowded choruses, selecting for mechanisms allowing them to call at favourable times relative to the calls of rivals and background chorus noise. To accomplish this, males must continuously evaluate the…
View article: Female Túngara Frogs Discriminate against the Call of Males Infected by Chytridiomycosis
Female Túngara Frogs Discriminate against the Call of Males Infected by Chytridiomycosis Open
Species worldwide are disappearing in the most devastating mass extinction in human history and one of the six most profound extinctions in the history of life. Amphibians are greatly affected, approximately one third of living species are…
View article: Time and place affect the acoustic structure of frog advertisement calls
Time and place affect the acoustic structure of frog advertisement calls Open
Acoustic communication signals are important for species recognition and mate attraction across numerous taxa. For instance, most of the thousands of species of frogs have a species-specific advertisement call that females use to localize …
View article: Condition dependence in the sexual communication system of the túngara frog
Condition dependence in the sexual communication system of the túngara frog Open
Sexual selection can result in the evolution of extreme armaments and ornaments, and the development and maintenance of these traits can come at a considerable cost. These costs have been implicated in enforcing an upper limit on trait div…
View article: Túngara frog call-timing decisions arise as internal rhythms interact with fluctuating chorus noise
Túngara frog call-timing decisions arise as internal rhythms interact with fluctuating chorus noise Open
For chorusing males, optimally timing their calls relative to nearby rivals’ calls and fluctuations in background chorus noise is crucial for reproductive success. A caller’s acoustic environment will vary by chorus density and the propert…
View article: Conserved chromatin and repetitive patterns reveal slow genome evolution in frogs
Conserved chromatin and repetitive patterns reveal slow genome evolution in frogs Open
Frogs are an ecologically diverse and phylogenetically ancient group of anuran amphibians that include important vertebrate cell and developmental model systems, notably the genus Xenopus . Here we report a high-quality reference genome se…
View article: Condition dependence in the sexual communication system of the túngara frog
Condition dependence in the sexual communication system of the túngara frog Open
Sexual selection can result in the evolution of extreme armaments and ornaments, and the development and maintenance of these traits can come at a considerable cost. These costs have been implicated in enforcing an upper limit on trait div…
View article: Female Preferences for More Elaborate Signals Are an Emergent Outcome of Male Chorusing Interactions in Túngara Frogs
Female Preferences for More Elaborate Signals Are an Emergent Outcome of Male Chorusing Interactions in Túngara Frogs Open
In chorusing species, conspecific acoustic interference exerts strong selection on signal form and timing to maximize conspicuousness and attractiveness within the signaling milieu. We investigated how túngara frog calling strategies were …
View article: Spatial learning overshadows learning novel odors and sounds in both a predatory and a frugivorous bat
Spatial learning overshadows learning novel odors and sounds in both a predatory and a frugivorous bat Open
A bstract To be efficient while foraging, animals should be selective about attending to and remembering the cues of food that best predict future meals. One hypothesis is that animals with different foraging strategies should vary in thei…
View article: Cross-modal facilitation of auditory discrimination in a frog
Cross-modal facilitation of auditory discrimination in a frog Open
Stimulation in one sensory modality can affect perception in a separate modality, resulting in diverse effects including illusions in humans. This can also result in cross-modal facilitation, a process where sensory performance in one moda…
View article: Tuned in to communication sounds: Neuronal sensitivity in the túngara frog midbrain to frequency modulated signals
Tuned in to communication sounds: Neuronal sensitivity in the túngara frog midbrain to frequency modulated signals Open
For complex communication signals, it is often difficult to identify the information-bearing elements and their parameters necessary to elicit functional behavior. Consequently, it may be difficult to design stimuli that test how neurons c…
View article: Long-term memory in frog-eating bats
Long-term memory in frog-eating bats Open
Long-term memory has clear advantages but also has neurological and behavioral costs 1–3 . Given these opposing selection pressures, understanding how long memories last can shed light on how memory enhances or constrains animals’ abilitie…
View article: Dixon.et.al.Comparative_cue_use_in_bats.Rmd
Dixon.et.al.Comparative_cue_use_in_bats.Rmd Open
R code for statistics and figures and access to dataset
View article: Data from Cross-modal facilitation of auditory discrimination in a frog
Data from Cross-modal facilitation of auditory discrimination in a frog Open
Raw preference and latency data used for analysis
View article: Conserved chromatin and repetitive patterns reveal slow genome evolution in frogs
Conserved chromatin and repetitive patterns reveal slow genome evolution in frogs Open
Frogs are an ecologically diverse and phylogenetically ancient group of living amphibians that include important vertebrate cell and developmental model systems, notably the genus Xenopus . Here we report a high-quality reference genome se…
View article: The Use of Evoked Vocal Responses to Detect Cryptic, Low-Density Frogs in the Field
The Use of Evoked Vocal Responses to Detect Cryptic, Low-Density Frogs in the Field Open
The protection of rare amphibians depends upon accurate information about their distributions, yet cryptic, low-density populations are easily missed during field surveys. We used sites with known populations of the U.S. federally threaten…
View article: Covariation among multimodal components in the courtship display of the túngara frog
Covariation among multimodal components in the courtship display of the túngara frog Open
Communication systems often include a variety of components, including those that span modalities, which may facilitate detection and decision-making. For example, female túngara frogs and fringe-lipped bats generally rely on acoustic mati…
View article: Estrogenic Modulation of Retinal Sensitivity in Reproductive Female Túngara Frogs
Estrogenic Modulation of Retinal Sensitivity in Reproductive Female Túngara Frogs Open
Although mate searching behavior in female túngara frogs (Physalaemus pustulosus) is nocturnal and largely mediated by acoustic cues, male signaling includes visual cues produced by the vocal sac. To compensate for these low light conditio…
View article: Darwin, sexual selection, and the brain
Darwin, sexual selection, and the brain Open
One hundred fifty years ago Darwin published The Descent of Man, and Selection in Relation to Sex , in which he presented his theory of sexual selection with its emphasis on sexual beauty. However, it was not until 50 y ago that there was …
View article: Phenotypic Variation in an Asexual-Sexual Fish System: Visual Lateralization
Phenotypic Variation in an Asexual-Sexual Fish System: Visual Lateralization Open
Sexual reproduction is nearly ubiquitous in the vertebrate world, yet its evolution and maintenance remain a conundrum due to the cost of males. Conversely, asexually reproducing species should enjoy a twofold population increase and thus …
View article: Floating frogs sound larger: environmental constraints on signal production drives call frequency changes
Floating frogs sound larger: environmental constraints on signal production drives call frequency changes Open