Landscape as a factor of natural selection on reactivity for steppe marmot (Marmota bobak)

Marmots use a sound signal to inform their neighbours about the danger. Vocalization is the response of marmots to the visual perception of a potentially dangerous stimulus. For the first time at the intraspecific level the relationship between the rhythmic structure of the signal and the habitat el...

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Main Author: Nikol’skii Alexander
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/41/e3sconf_apeem2021_01005.pdf
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author Nikol’skii Alexander
author_facet Nikol’skii Alexander
author_sort Nikol’skii Alexander
collection DOAJ
description Marmots use a sound signal to inform their neighbours about the danger. Vocalization is the response of marmots to the visual perception of a potentially dangerous stimulus. For the first time at the intraspecific level the relationship between the rhythmic structure of the signal and the habitat elevation of populations is shown using the example of the steppe marmot (Marmota bobak). An increase in elevation is accompanied by an increase in the relative excess of positive forms over the nearest negative forms of relief. The dismembered relief reduces the visual detection range of danger. With an increase in the habitat elevation of populations, the repetition periods of sounds in the signal decrease. In the range of habitat elevations of the steppe marmot from 120 to 730 m, the median of the repetition periods decreases from 5.35 to 2.17 s. The increased rhythm is a consequence of the increased reactivity of marmots. It has been suggested that a complex of reactions to visual detection of danger controls the amygdale. The alarm call of marmots was recorded in the field.
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spelling doaj.art-68af2bc61e1f468985adc1df0edf4ecb2022-12-21T22:02:30ZengEDP SciencesE3S Web of Conferences2267-12422021-01-012650100510.1051/e3sconf/202126501005e3sconf_apeem2021_01005Landscape as a factor of natural selection on reactivity for steppe marmot (Marmota bobak)Nikol’skii AlexanderMarmots use a sound signal to inform their neighbours about the danger. Vocalization is the response of marmots to the visual perception of a potentially dangerous stimulus. For the first time at the intraspecific level the relationship between the rhythmic structure of the signal and the habitat elevation of populations is shown using the example of the steppe marmot (Marmota bobak). An increase in elevation is accompanied by an increase in the relative excess of positive forms over the nearest negative forms of relief. The dismembered relief reduces the visual detection range of danger. With an increase in the habitat elevation of populations, the repetition periods of sounds in the signal decrease. In the range of habitat elevations of the steppe marmot from 120 to 730 m, the median of the repetition periods decreases from 5.35 to 2.17 s. The increased rhythm is a consequence of the increased reactivity of marmots. It has been suggested that a complex of reactions to visual detection of danger controls the amygdale. The alarm call of marmots was recorded in the field.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/41/e3sconf_apeem2021_01005.pdf
spellingShingle Nikol’skii Alexander
Landscape as a factor of natural selection on reactivity for steppe marmot (Marmota bobak)
E3S Web of Conferences
title Landscape as a factor of natural selection on reactivity for steppe marmot (Marmota bobak)
title_full Landscape as a factor of natural selection on reactivity for steppe marmot (Marmota bobak)
title_fullStr Landscape as a factor of natural selection on reactivity for steppe marmot (Marmota bobak)
title_full_unstemmed Landscape as a factor of natural selection on reactivity for steppe marmot (Marmota bobak)
title_short Landscape as a factor of natural selection on reactivity for steppe marmot (Marmota bobak)
title_sort landscape as a factor of natural selection on reactivity for steppe marmot marmota bobak
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/41/e3sconf_apeem2021_01005.pdf
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