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Ретроспективный анализ и современное состояние балобана (falco cherrug) в Дагестане

Ретроспективный анализ и современное состояние балобана (falco cherrug) в Дагестане

Abstract

Literature data for the last 134 years, personal observations of the author (1995-2013), and data of inquiries of local people and game managers regarding the occurrence of the saker falcon in Daghestan are summarized. It is revealed that within the territory of the region the saker falcon occupies not only planes and foothills but also intramountain and high mountain areas to the altitude of 2000-2700 m above sea level. The species breeding group constitutes at least 13-15 pairs. In autumn up to 25-30 individuals of the species migrate across the territory of the republic. During migrations, the Saker Falcon flies not only along the foothills and the coast of the Caspian Sea (the foothill-seaside migrating group) but also crosses mountains of the East Caucasus (the Transcaucasian migrating group). Th e wintering species irregularly met, usually in warm winters. The continuing depression in the abundance of the Daghestanian Saker Falcon population is connected with a combined impact of several factors: transformation of natural habitats, decrease in abundance of rodents, increase of bird disturbance on nesting, and direct illegal bird catching. Deterioration of habitats of the saker falcon in the plain Daghestan causes its redistribution to foothills and mountains. This redistribution is promoted by restoration of forests and their components (including aviafauna) due to the construction of natural gas network in mountain regions. Rehabilitation of natural communities of mountain ecosystems can lead to stabilization of the Dagestanian population of the saker falcon. Refs 38. Figs 1.

Обобщены сведения литературных источников за последние 134 года, а также личные наблюдения автора (1995-2013) и данные респондентов из числа местных жителей и охотоведов, касающиеся вопросов присутствия балобана в Дагестане. Установлено, что на территории региона балобан населяет не только равнинные и предгорные, но и внутригорно-высокогорные районы, поднимаясь до высоты 2000-2700 м над ур. м. Гнездовая группировка вида насчитывает не менее 13-15 пар. Через территорию республики в осеннее время мигрирует до 25-30 особей вида. В период миграций балобан летит не только вдоль предгорий и по побережью Каспийского моря (предгорно-приморская миграционная группа), но и через горы Восточного Кавказа (транскавказская миграционная группа). На зимовках встречается нерегулярно и, как правило, в теплые зимы. Продолжающаяся депрессия численности дагестанской популяции балобана связана с интегрированным воздействием комплекса регулирующих факторов: трансформацией природных местообитаний, снижением обилия грызунов, усилением беспокойства птиц на гнездовании и непосредственным их отловом. Ухудшение условий обитания балобана в равнинном Дагестане ведет к его перераспределению в горные районы, чему способствует восстановление лесов и сопутствующих им природных компонентов (включая орнитофауну) за счет проведения природного газа в горные районы. Реабилитация природных сообществ горных экосистем может привести к стабилизации дагестанской популяции балобана. Библиогр. 38 назв. Ил. 1.

Keywords

БАЛОБАН,ДАГЕСТАН,МИГРАЦИЯ,ГНЕЗДОВАЯ ЧИСЛЕННОСТЬ,SAKER FALCON,DAGHESTAN,MIGRATION,BREEDING NUMBER

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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
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