Roland Frey
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Explore the profile of Roland Frey including associated specialties, affiliations and a list of published articles.
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23
Citations
213
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Recent Articles
1.
Frey R, Wyman M, Johnston M, Schofield M, Locatelli Y, Reby D
J Anat
. 2021 Aug;
239(6):1336-1369.
PMID: 34342877
Eurasian deer are characterized by the extraordinary diversity of their vocal repertoires. Male sexual calls range from roars with relatively low fundamental frequency (hereafter f ) in red deer Cervus...
2.
Volodin I, Volodina E, Frey R
Front Zool
. 2021 Jan;
18(1):2.
PMID: 33413460
Background: The rutting vocal display of male impala Aepyceros melampus is unique for its complexity among ruminants. This study investigates bouts of rutting calls produced towards potential mates and rival...
3.
Frey R, Volodin I, Volodina E, Efremova K, Menges V, Portas R, et al.
J Anat
. 2019 Nov;
236(3):398-424.
PMID: 31777085
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...
4.
Volodin I, Matrosova V, Frey R, Kozhevnikova J, Isaeva I, Volodina E
Naturwissenschaften
. 2018 Jun;
105(7-8):40.
PMID: 29892847
Non-hibernating pikas collect winter food reserves and store them in hay piles. Individualization of alarm calls might allow discrimination between colony members and conspecifics trying to steal food items from...
5.
Frey R, Reby D, Fritsch G, Charlton B
J Anat
. 2018 Feb;
232(4):575-595.
PMID: 29460389
Koalas are characterised by a highly unusual vocal anatomy, with a descended larynx and velar vocal folds, allowing them to produce calls at disproportionately low frequencies. Here we use advanced...
6.
Volodina E, Volodin I, Chelysheva E, Frey R
BMC Res Notes
. 2018 Jan;
11(1):12.
PMID: 29316966
Objectives: Vocalization as part of vigilance behaviour is widespread across animal taxa, including ruminants. Calls of wild-living giraffes have never been recorded and spectrographically investigated. This study reports the acoustic...
7.
Volodin I, Volodina E, Frey R, Kirilyuk V, Naidenko S
Naturwissenschaften
. 2017 Jun;
104(5-6):50.
PMID: 28578533
In neonate ruminants, the acoustic structure of vocalizations may depend on sex, vocal anatomy, hormonal profiles and body mass and on environmental factors. In neonate wild-living Mongolian gazelles Procapra gutturosa,...
8.
Sibiryakova O, Volodin I, Frey R, Zuther S, Kisebaev T, Salemgareev A, et al.
Naturwissenschaften
. 2017 Mar;
104(3-4):11.
PMID: 28243711
Saiga antelopes Saiga tatarica tatarica give birth in large aggregations, and offspring follow the herd soon after birth. Herding is advantageous as anti-predator strategy; however, communication between mothers and neonates...
9.
Volodin I, Efremova K, Frey R, Soldatova N, Volodina E
Zoology (Jena)
. 2016 Nov;
120:31-41.
PMID: 27876268
The pronouncedly enlarged and descended larynx in male goitred gazelles (Gazella subgutturosa), Mongolian gazelles (Procapra gutturosa) and fallow deer (Dama dama) represents an interesting parallel to the 'Adam's apple' of...
10.
Efremova K, Frey R, Volodin I, Fritsch G, Soldatova N, Volodina E
J Morphol
. 2016 Mar;
277(6):826-44.
PMID: 26997608
This study quantitatively documents the progressive development of sexual dimorphism of the vocal organs along the ontogeny of the goitred gazelle (Gazella subgutturosa). The major, male-specific secondary sexual features, of...