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Копуляторное поведения самок сивуча (Eumetopias jubatus Shreber 1776) на лежбище мыса Козлова (п-ов Камчатка)

Копуляторное поведения самок сивуча (Eumetopias jubatus Shreber 1776) на лежбище мыса Козлова (п-ов Камчатка)

Abstract

Для каждого из наблюдавшихся спариваний были выявлены причинно-следственные связи. Было описано несколько фаз поведения, предшествующего копуляции и последующего за ней. Наиболее важным фактором, способствующим инициации форм прекопуляторного поведения у самцов, является активное, как правило, агонистическое поведение самок, которое, видимо, служит индикатором наступившего поведенческого эструса. Установлено, что высокий уровень активности самок на лежбище после спаривания может спровоцировать повторные копуляции с другими самцами. На основании анализа периода каждой из фаз активности самок перед спариванием и после него мы оценили продолжительность поведенческого эструса. У самок сивуча подтверждается возможность влиять на формирование репродуктивных связей даже во время наступившей рецептивности.

Cause-effect relationship has been identified for each of the observed mating event. There are a numbers of behavioral phases that occurring before and after a mating process. The most important factor that initializes precopulation behavior for males is an active aggressive behavior of females, indicating the behavioral manifestations of estrus. It was estimated that a high level of activity of females on a rookery after mating can cause other mating with another males. The duration of behavioral estrus was assessed based on the analysis of the duration of each activity event of females before and after mating. It has been confirmed that females of Steller sea lion can choose a partner even during the ensuing receptivity.

Keywords

СИВУЧ, КОПУЛЯТОРНОЕ ПОВЕДЕНИЕ, РЕПРОДУКТИВНОЕ ПОВЕДЕНИЯ, РЕПРОДУКТИВНЫЕ СТРАТЕГИИ, РАЗМНО-, ЖЕНИЕ

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average