Ilya A. Volodin
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View article: Acoustic complexity of pup isolation calls in Mongolian hamsters: 3-frequency phenomena and chaos
Acoustic complexity of pup isolation calls in Mongolian hamsters: 3-frequency phenomena and chaos Open
Studying pup isolation calls of wild rodents provides background for developing new early-life animal models for biomedical research and drug testing. This study discovered a highly complex acoustic phenotype of pup isolation calls in 4–5-…
View article: Cross-fostering effects on ultrasonic calls in two gerbil species
Cross-fostering effects on ultrasonic calls in two gerbil species Open
Mammals not experiencing vocal learning may slightly modify their voice calls (produced by vibration of the vocal folds) towards a higher similarity with conspecific groupmates.This pilot study is the first focused on interspecies social e…
View article: Roaring dynamics in rutting male red deer Cervus elaphus from five Russian populations
Roaring dynamics in rutting male red deer Cervus elaphus from five Russian populations Open
In Russia, current populations of Cervus elaphus sensu lato represent a mix of fragmented remnants of ancestral red deer naturally radiated from their center of origin in Middle Asia and populations, either re-stored by people at places wh…
View article: Pup ultrasonic isolation calls of six gerbil species and the relationship between acoustic traits and body size
Pup ultrasonic isolation calls of six gerbil species and the relationship between acoustic traits and body size Open
Among Gerbillinae rodents, ultrasonic calls of adults of small-sized species are typically higher frequency than those of adults of large-sized species. This study investigates whether a similar relationship can be found in pups of six ger…
View article: Ultrasound from underground: cryptic communication in subterranean wild-living and captive northern mole voles (<i>Ellobius talpinus</i>)
Ultrasound from underground: cryptic communication in subterranean wild-living and captive northern mole voles (<i>Ellobius talpinus</i>) Open
This study provides the first evidence of ultrasonic vocalisations (USVs) in a truly subterranean rodent, the northern mole vole Ellobius talpinus. Calls were recorded by attracting callers with a bait to burrow entrances, where they were …
View article: Additional file 1 of Ontogeny of audible squeaks in yellow steppe lemming Eolagurus luteus: trend towards shorter and low-frequency calls is reminiscent of those in ultrasonic vocalization
Additional file 1 of Ontogeny of audible squeaks in yellow steppe lemming Eolagurus luteus: trend towards shorter and low-frequency calls is reminiscent of those in ultrasonic vocalization Open
Additional file 1: Table S1. Mean values for acoustic variables of AUD calls, body weight, body length, head length, foot length, tail length and body size index for 120 individual pup and adult yellow steppe lemmings.
View article: S1 Table from Pup ultrasonic isolation calls of six gerbil species and the relationship between acoustic traits and body size
S1 Table from Pup ultrasonic isolation calls of six gerbil species and the relationship between acoustic traits and body size Open
Mean values for acoustic variables of USV calls, body weight, body length, head length, foot length, tail length and body size index for 60 individual pup gerbils of six species.
View article: Camel whistling vocalisations: male and female call structure and context in <i>Camelus bactrianus</i> and <i>Camelus dromedarius</i>
Camel whistling vocalisations: male and female call structure and context in <i>Camelus bactrianus</i> and <i>Camelus dromedarius</i> Open
Among ruminants, some species of cervids, bovids and camelids are capable of producing very high-frequency (HF) calls potentially produced by the aerodynamic whistle mechanism. We analysed the HF calls of six individual adult captive camel…
View article: Polyphony of domestic dog whines and vocal cues to body size
Polyphony of domestic dog whines and vocal cues to body size Open
In domestic dogs Canis familiaris, vocal traits have been investigated for barks and growls, and the relationship between individual body size and vocal traits investigated for growls, with less corresponding information for whines. In thi…
View article: Rapid development of mature vocal patterns of ultrasonic calls in a fast-growing rodent, the yellow steppe lemming (Eolagurus luteus)
Rapid development of mature vocal patterns of ultrasonic calls in a fast-growing rodent, the yellow steppe lemming (Eolagurus luteus) Open
Ultrasonic vocalizations (USV) of laboratory rodents may serve as age-dependent indicators of emotional arousal and anxiety. Fast-growing Arvicolinae rodent species might be advantageous wild-type animal models for behavioural and medical …
View article: Savannah roars: The vocal anatomy and the impressive rutting calls of male impala (<i>Aepyceros melampus</i>) – highlighting the acoustic correlates of a mobile larynx
Savannah roars: The vocal anatomy and the impressive rutting calls of male impala (<i>Aepyceros melampus</i>) – highlighting the acoustic correlates of a mobile larynx Open
A retractable larynx and adaptations of the vocal folds in the males of several polygynous ruminants serve for the production of rutting calls that acoustically announce larger than actual body size to both rival males and potential female…
View article: Ultrasonic vocalization of pup and adult fat-tailed gerbils (Pachyuromys duprasi)
Ultrasonic vocalization of pup and adult fat-tailed gerbils (Pachyuromys duprasi) Open
Ultrasonic vocalizations (USVs) of laboratory rodents indicate animal emotional arousal and may serve as models of human disorders. We analysed spectrographically USV calls of pup and adult fat-tailed gerbils Pachyuromys duprasi during 420…
View article: Phylogenetic relationship and variation of alarm call traits of populations of red‐cheeked ground squirrels (<i>Spermophilus erythrogenys</i> sensu lato) suggest taxonomic delineation
Phylogenetic relationship and variation of alarm call traits of populations of red‐cheeked ground squirrels (<i>Spermophilus erythrogenys</i> sensu lato) suggest taxonomic delineation Open
Distribution area and taxonomic borders within the species complex Spermophilus erythrogenys sensu lato remain questionable. Early evidence suggests that red‐cheeked ground squirrels of Southeast Kazakhstan are remarkably different in term…
View article: Passive acoustic monitoring of roaring activity in male Wapiti Cervus elaphus xanthopygus in Far East of Russia: effects of recording site, temperature and time of day
Passive acoustic monitoring of roaring activity in male Wapiti Cervus elaphus xanthopygus in Far East of Russia: effects of recording site, temperature and time of day Open
Passive acoustic monitoring is an actual tool for population monitoring at conservation and tourist areas. This study provides detailed knowledge of roaring activity of male Far-East wapiti (Cervus elaphus xanthopygus) in the rut period of…
View article: MOESM1 of High frequency audible calls in northern birch mice Sicista betulina in response to handling: effects of individuality, sex and body mass on the acoustics
MOESM1 of High frequency audible calls in northern birch mice Sicista betulina in response to handling: effects of individuality, sex and body mass on the acoustics Open
Additional file 1: Table S1. Data table with body mass and acoustic measurements of discomfort-related sonic calls of the study northern birch mice.
View article: Ultrasonic bouts of a blind climbing rodent (<i>Typhlomys chapensis</i>): acoustic analysis
Ultrasonic bouts of a blind climbing rodent (<i>Typhlomys chapensis</i>): acoustic analysis Open
The peculiar acoustic structure of ultrasonic bouts of blind climbing rodents Typhlomys might provide insight on their potential function. We examined 1481 bouts consisting of 1-6 pulses; 49.7% of them were single-pulse bouts. Bout duratio…
View article: Hiss and snort call types of wild-living giraffes Giraffa camelopardalis: acoustic structure and context
Hiss and snort call types of wild-living giraffes Giraffa camelopardalis: acoustic structure and context Open
The hiss and snort calls were emitted during five recording sessions produced by nine individual giraffes (8 adults and 1 subadult) in their natural environment in Namibia (3 individuals) and Kenya (6 individuals). These calls attended vig…
View article: Ultrasonic bouts of a blind climbing rodent (<i>Typhlomys chapensis</i>): acoustic analysis
Ultrasonic bouts of a blind climbing rodent (<i>Typhlomys chapensis</i>): acoustic analysis Open
The peculiar acoustic structure of ultrasonic bouts of blind climbing rodents Typhlomys might provide insight on their potential function. We examined 1481 bouts consisting of 1-6 pulses; 49.7% of them were single-pulse bouts. Bout duratio…
View article: MOESM2 of Hiss and snort call types of wild-living giraffes Giraffa camelopardalis: acoustic structure and context
MOESM2 of Hiss and snort call types of wild-living giraffes Giraffa camelopardalis: acoustic structure and context Open
Additional file 2: Table S1. Table with acoustic measurements of giraffe hisses and snorts for describing the acoustic features of these two call types.
View article: MOESM1 of Between-year vocal aging in female red deer (Cervus elaphus)
MOESM1 of Between-year vocal aging in female red deer (Cervus elaphus) Open
Additional file 1. Table presenting age, weight, discomfort score and condition score of particular Iberian red deer hinds and mean acoustic measurements of their oral and nasal contact calls in 2011 and 2012.
View article: Humans identify negative (but not positive) arousal in silver fox vocalizations: implications for the adaptive value of interspecific eavesdropping
Humans identify negative (but not positive) arousal in silver fox vocalizations: implications for the adaptive value of interspecific eavesdropping Open
The ability to identify emotional arousal in heterospecific vocalizations may facilitate behaviors that increase survival opportunities. Crucially, this ability may orient inter-species interactions, particularly between humans and other s…