Pub Date : 2022-03-28DOI: 10.34078/1814-0998-2022-1-3-13
A. A. Cherepanov, N. V. Berdnikov
One deposit and 217 occurrences of fluorite, grouped in the fluorite, the rare-metal-fluorite, and the polymetal-fluorite mineral formations, are known in RussiaТs North-East. Occurrences of fluorite formations are most widespread, while the stratiform occurrences in the Urultun-Taskan zone at the Omulevskoye uplift are especially rich in resources. Fluorite occurrences themselves are widespread within the Okhotsk-Chukotka volcanogenic belt. Fluorite-bearing belts, areas, and zones are distinguished. Fluorite minerogenic resources of RussiaТs North-East are estimated.
{"title":"Флюоритоносность Северо-Востока России","authors":"A. A. Cherepanov, N. V. Berdnikov","doi":"10.34078/1814-0998-2022-1-3-13","DOIUrl":"https://doi.org/10.34078/1814-0998-2022-1-3-13","url":null,"abstract":"One deposit and 217 occurrences of fluorite, grouped in the fluorite, the rare-metal-fluorite, and the polymetal-fluorite mineral formations, are known in RussiaТs North-East. Occurrences of fluorite formations are most widespread, while the stratiform occurrences in the Urultun-Taskan zone at the Omulevskoye uplift are especially rich in resources. Fluorite occurrences themselves are widespread within the Okhotsk-Chukotka volcanogenic belt. Fluorite-bearing belts, areas, and zones are distinguished. Fluorite minerogenic resources of RussiaТs North-East are estimated.","PeriodicalId":341033,"journal":{"name":"Bulletin of the North-East Science Center","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121241137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-03-28DOI: 10.34078/1814-0998-2022-1-40-48
V. S. Shkodzinskiy
The obtained numerous proofs of hot heterogeneous accretion of the Earth and the calculated quantitative models of magmas lead to a fundamentally new solution for the genetic problems of magmatic petrology. They indicate the formation of geospheres and the initial substance of magmas resulted from fractionation of the global magmatic ocean, which arose as a result of a huge impact heat release during mantle accretion. Due to the increase in temperature as accretion progressed, a reverse geothermal gradient first existed in the mantle, and on the early Earth there were no modern geodynamic conditions. The gradual warming of the mantle by the initially very hot core led to the formation of a direct geothermal gradient and convection as well as oceanic and subduction regions in the Neoproterozoic. In the oceans, magmas are formed as a result of decompression melting during the surfacing of eclogite lenses, which emerged by way of filling impact craters with melts of the synaccretionary magmatic ocean. Magmas of subduction regions are the result of frictional melting of the magmatic ocean differentiates. Volcanic explosions occur under the influence of high pressure of the gas phase preserved by decompressional solidification of magmas at the shallow stage of ascent.
{"title":"Происхождение магм и вулканических взрывов в океанических и субдукционных областях с учетом данных о горячей гетерогенной аккреции Земли","authors":"V. S. Shkodzinskiy","doi":"10.34078/1814-0998-2022-1-40-48","DOIUrl":"https://doi.org/10.34078/1814-0998-2022-1-40-48","url":null,"abstract":"The obtained numerous proofs of hot heterogeneous accretion of the Earth and the calculated quantitative models of magmas lead to a fundamentally new solution for the genetic problems of magmatic petrology. They indicate the formation of geospheres and the initial substance of magmas resulted from fractionation of the global magmatic ocean, which arose as a result of a huge impact heat release during mantle accretion. Due to the increase in temperature as accretion progressed, a reverse geothermal gradient first existed in the mantle, and on the early Earth there were no modern geodynamic conditions. The gradual warming of the mantle by the initially very hot core led to the formation of a direct geothermal gradient and convection as well as oceanic and subduction regions in the Neoproterozoic. In the oceans, magmas are formed as a result of decompression melting during the surfacing of eclogite lenses, which emerged by way of filling impact craters with melts of the synaccretionary magmatic ocean. Magmas of subduction regions are the result of frictional melting of the magmatic ocean differentiates. Volcanic explosions occur under the influence of high pressure of the gas phase preserved by decompressional solidification of magmas at the shallow stage of ascent.","PeriodicalId":341033,"journal":{"name":"Bulletin of the North-East Science Center","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131692176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-29DOI: 10.34078/1814-0998-2021-4-81-88
K. B. Klokov, Y. N. Gerasimov, E. E. Syroechkovskiy
The first in Russia large-scale study on the impact of hunting on wader populations was carried out in Kamchatka in 2019. The main research method was anonymous hunters questioning. In Kamchatka Krai, about 3.400 hunters take part in the wader hunt. Of the 402 hunters, who participated in the anonymous questioning, 55 % were hunting Whimbrels in the current season; 9 %, other large and medium-size wader species; 14 %, smaller waders. The total of about 45.000 waders are shot annually in Kamchatka, including 37.000 Whimbrels 1.600 waders of other large species, and 6 thousand waders of smaller species. From the species listed in the Red Data Book of the Russian Federation, up to 20 Oystercatchers, 100 Far Eastern Curlews, 200 Bar-tailed Godwits, 300 Grater Knots, and 100 Red Knots are shot. Hunting smaller waders is not popular, but it causes the death of up to 12.000 thousand smaller waders, with Spoon-billed Sandpiper also occasionally killed. Special educational activities for hunters and hunting officers are required for conservation of wader populations included in the Red Data Books of the Russian Federation; first, a special field guide of waders in the Far East should be published. It is also necessary to restore the Moroshechnaya River sanctuary reserve, liquidated in 2009 yet included in the official list of areas of international importance for waders on the East Asian-Australasian Flyway.
{"title":"Охота на куликов на Камчатке и ее влияние на популяции видов, внесенных в Красную книгу России.","authors":"K. B. Klokov, Y. N. Gerasimov, E. E. Syroechkovskiy","doi":"10.34078/1814-0998-2021-4-81-88","DOIUrl":"https://doi.org/10.34078/1814-0998-2021-4-81-88","url":null,"abstract":"The first in Russia large-scale study on the impact of hunting on wader populations was carried out in Kamchatka in 2019. The main research method was anonymous hunters questioning. In Kamchatka Krai, about 3.400 hunters take part in the wader hunt. Of the 402 hunters, who participated in the anonymous questioning, 55 % were hunting Whimbrels in the current season; 9 %, other large and medium-size wader species; 14 %, smaller waders. The total of about 45.000 waders are shot annually in Kamchatka, including 37.000 Whimbrels 1.600 waders of other large species, and 6 thousand waders of smaller species. From the species listed in the Red Data Book of the Russian Federation, up to 20 Oystercatchers, 100 Far Eastern Curlews, 200 Bar-tailed Godwits, 300 Grater Knots, and 100 Red Knots are shot. Hunting smaller waders is not popular, but it causes the death of up to 12.000 thousand smaller waders, with Spoon-billed Sandpiper also occasionally killed. Special educational activities for hunters and hunting officers are required for conservation of wader populations included in the Red Data Books of the Russian Federation; first, a special field guide of waders in the Far East should be published. It is also necessary to restore the Moroshechnaya River sanctuary reserve, liquidated in 2009 yet included in the official list of areas of international importance for waders on the East Asian-Australasian Flyway.","PeriodicalId":341033,"journal":{"name":"Bulletin of the North-East Science Center","volume":"366 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122921564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-29DOI: 10.34078/1814-0998-2020-4-73-80
V. A. Zubakin, E. V. Zubakina, A. V. Klenova, D. S. Vodolazova
The crested auklet is a medium-sized planktivorous seabird of the Alcidae family with complex social behavior, one of the interesting forms of which is the formation of club pairs in addition to existing breeding pairs. The occurrence of club pairs in this species was studied on the Talan Island (Sea of Okhotsk) in 1988-1989, when the colony was in a good condition, and in 2008-2015, when its population decreased several times. The research showed that the proportion of individuals with club partners is higher in a high-population period (35 %) and lower in a low-population period (18 %); the differences, however, are not significant. In both study periods, from 73% (1988-1989) to 80 % (2008-2015) individuals were consistent in following the chosen strategy of forming or not forming club pairs for at least two seasons. The presence of club pairs seems to facilitate the change of mate in the next breeding season, but club mates then become partners relatively seldom.
{"title":"Частота встречаемости клубных пар большой конюги (Aethia cristatella) при высокой и резко снизившейся численности птиц в колонии.","authors":"V. A. Zubakin, E. V. Zubakina, A. V. Klenova, D. S. Vodolazova","doi":"10.34078/1814-0998-2020-4-73-80","DOIUrl":"https://doi.org/10.34078/1814-0998-2020-4-73-80","url":null,"abstract":"The crested auklet is a medium-sized planktivorous seabird of the Alcidae family with complex social behavior, one of the interesting forms of which is the formation of club pairs in addition to existing breeding pairs. The occurrence of club pairs in this species was studied on the Talan Island (Sea of Okhotsk) in 1988-1989, when the colony was in a good condition, and in 2008-2015, when its population decreased several times. The research showed that the proportion of individuals with club partners is higher in a high-population period (35 %) and lower in a low-population period (18 %); the differences, however, are not significant. In both study periods, from 73% (1988-1989) to 80 % (2008-2015) individuals were consistent in following the chosen strategy of forming or not forming club pairs for at least two seasons. The presence of club pairs seems to facilitate the change of mate in the next breeding season, but club mates then become partners relatively seldom.","PeriodicalId":341033,"journal":{"name":"Bulletin of the North-East Science Center","volume":"C-33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126489065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-29DOI: 10.34078/1814-0998-2021-4-5-22
А. V. Kondratyev, E. V. Khamenkova
The authors analyze the scientific and organizational activities of A. V. Andreev as a leader of ornithological research in Russia's North-East as well as his personal contribution in organization and development of nature conservation. The article is illustrated with previously unpublished photographs and presents the reference list of A. V. Andreev major scientific publications since 1971.
{"title":"Научно-организационная роль и наследие А. В. Андреева в развитии орнитологических исследований и охране природы Северо-Востока Азии.","authors":"А. V. Kondratyev, E. V. Khamenkova","doi":"10.34078/1814-0998-2021-4-5-22","DOIUrl":"https://doi.org/10.34078/1814-0998-2021-4-5-22","url":null,"abstract":"The authors analyze the scientific and organizational activities of A. V. Andreev as a leader of ornithological research in Russia's North-East as well as his personal contribution in organization and development of nature conservation. The article is illustrated with previously unpublished photographs and presents the reference list of A. V. Andreev major scientific publications since 1971.","PeriodicalId":341033,"journal":{"name":"Bulletin of the North-East Science Center","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124319080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-29DOI: 10.34078/1814-0998-2021-4-89-108
V. V. Pospekhov, G. I. Atrashkevich, O. M. Orlovskaya, E. I. Mikhaĭlova
The first data on the parasite fauna of fish from the mountain lakes Bolshoy and Maly Darpir at the southern spurs of the Chersky Ridge (Momsky District, Yakutia) are presented. 7 species of fish have been studied, in which 34 species of parasites have been found: 33 species of helminths and 1 species of parasitic copepods, belonging to 22 genera, 16 families, 12 orders, 7 classes of 4 types of the animal kingdom. Trematodes completely dominate by the number of species among helminths (16 species); cestodes are half as many (8 species); these are followed by nematodes and spiny-headed worms (5 and 4 species, respectively). The greatest variety of parasites was found in the East Siberian grayling (22 species) and the Arctic char (19 species). Next to the latter in terms of the number of parasite species, there went the Kolyma sculpin (13 species), round whitefish (10 species each), sucker (9 species), eelpout, and common minnow (7 species each). Only one parasite species, the Neoechinorhynchus salmonis Ching, 1984 spiny-headed worm, is common for all studied fish. The second species of spiny-headed worms, Pseudoechinorhynchus borealis (Linstow, 1901), not found only in the round whitefish, was first recorded in fish of the Okhotsk-Kolyma area and in the sucker as a new definitive host.
{"title":"Паразиты рыб горных озер бассейна Верхней Колымы. 1. Озера большой и малый Дарпир.","authors":"V. V. Pospekhov, G. I. Atrashkevich, O. M. Orlovskaya, E. I. Mikhaĭlova","doi":"10.34078/1814-0998-2021-4-89-108","DOIUrl":"https://doi.org/10.34078/1814-0998-2021-4-89-108","url":null,"abstract":"The first data on the parasite fauna of fish from the mountain lakes Bolshoy and Maly Darpir at the southern spurs of the Chersky Ridge (Momsky District, Yakutia) are presented. 7 species of fish have been studied, in which 34 species of parasites have been found: 33 species of helminths and 1 species of parasitic copepods, belonging to 22 genera, 16 families, 12 orders, 7 classes of 4 types of the animal kingdom. Trematodes completely dominate by the number of species among helminths (16 species); cestodes are half as many (8 species); these are followed by nematodes and spiny-headed worms (5 and 4 species, respectively). The greatest variety of parasites was found in the East Siberian grayling (22 species) and the Arctic char (19 species). Next to the latter in terms of the number of parasite species, there went the Kolyma sculpin (13 species), round whitefish (10 species each), sucker (9 species), eelpout, and common minnow (7 species each). Only one parasite species, the Neoechinorhynchus salmonis Ching, 1984 spiny-headed worm, is common for all studied fish. The second species of spiny-headed worms, Pseudoechinorhynchus borealis (Linstow, 1901), not found only in the round whitefish, was first recorded in fish of the Okhotsk-Kolyma area and in the sucker as a new definitive host.","PeriodicalId":341033,"journal":{"name":"Bulletin of the North-East Science Center","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133106733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-29DOI: 10.34078/1814-0998-2021-4-61-72
D. V. Pilipenko, E. G. Mamaev
New data and analysis of changes in the number of wintering Anseriformes on the Commander Islands, the northernmost wintering site in the Far East, are presented. The surveys were carried out in March 2015-2019, mainly overland and covering 61 % of the coast of Bering Island, with 100 % of the coast in 2015 as an exception. Boat surveys of A. canagicus were carried out separately in the southwestern part of the island in April. In total, 17 species were encountered, including 12 recorded regularly, and 5 not annually. On Medny Island, the survey was carried out once, on April 3-4, 2017, by boat, and covered the entire coast. There, 7 species were taken into account. The total number of wintering Anseriformes of the Commander Islands is about 21 thousand birds, including 18.5 thousand on Bering Island and 2.5 thousand on Medny Island. The majority is concentrated in the northern and central part of Bering Island; in the south, the number is much lower. The dominant species is H. histrionicus: 65-72 % on Bering Island and 63 % on Medny Island. Subdominant is P. stelleri (16-20 % on Bering Island) as well as S. mollissima (30 % on Medny Island). The density of birds in the northern and central parts of Bering Island is 90-111.5 individuals per km of the coastline; in the south of the island, there are about 12 individuals; and on Medny Island, 14.9 individuals per km of the coastline. Over the past 25 years, the numbers of A. canagicus, A. platyrhynchos, A. acuta, B. clangula, and M. serrator have increased. P. stelleri and C. hyemalis have decreased. A. penelope, M. americana, and B. albeola began to regularly occur at the wintering, and B. bernicla, A. crecca, and A. marila have been observed more often than before. M. deglandi and M. merganser are now more common during migration, and practically are not observed at the wintering.
本文介绍了远东最北端越冬地点Commander群岛上雁形动物越冬数量变化的新数据和分析。这些调查是在2015年至2019年3月进行的，主要是在陆地上进行的，覆盖了白令岛61%的海岸，2015年的100%海岸是例外。4月在岛西南部单独进行了canagicus船调查。共录得17种，其中定期录得12种，非每年录得5种。2017年4月3日至4日，在梅迪尼岛，通过船只进行了一次调查，覆盖了整个海岸。在那里，有7个物种被考虑在内。指挥官群岛的越冬雁形目鸟类总数约为21000只，其中白令海岛上有185000只，梅德尼岛上有2500只。大部分集中在白令海岛的北部和中部;在南方，这个数字要低得多。白令岛和梅德尼岛的优势种分别为65 ~ 72%和63%。次优势种为stelleri P.(在白令海岛占16- 20%)和s.m ollissima(在Medny岛占30%)。白令岛北部和中部的鸟类密度为每公里海岸线90-111.5只;在岛的南部，大约有12只;在麦德尼岛，每公里海岸线上有14.9只。在过去的25年中，canagicus、platyrhynchos、acuta、B. clangula和M. serrator的数量有所增加。stelleri和C. hyemalis减少。A. penelope, M. americana和B. albeola在越冬开始有规律地出现，B. bernicla, A. crecca和A. marila比以前更常被观察到。deglandi和M. merganser现在在迁徙期间更常见，在冬季几乎看不到。
{"title":"Зимовка гусеобразных Anseriformes на Командорских островах: современное состояние и исторический обзор.","authors":"D. V. Pilipenko, E. G. Mamaev","doi":"10.34078/1814-0998-2021-4-61-72","DOIUrl":"https://doi.org/10.34078/1814-0998-2021-4-61-72","url":null,"abstract":"New data and analysis of changes in the number of wintering Anseriformes on the Commander Islands, the northernmost wintering site in the Far East, are presented. The surveys were carried out in March 2015-2019, mainly overland and covering 61 % of the coast of Bering Island, with 100 % of the coast in 2015 as an exception. Boat surveys of A. canagicus were carried out separately in the southwestern part of the island in April. In total, 17 species were encountered, including 12 recorded regularly, and 5 not annually. On Medny Island, the survey was carried out once, on April 3-4, 2017, by boat, and covered the entire coast. There, 7 species were taken into account. The total number of wintering Anseriformes of the Commander Islands is about 21 thousand birds, including 18.5 thousand on Bering Island and 2.5 thousand on Medny Island. The majority is concentrated in the northern and central part of Bering Island; in the south, the number is much lower. The dominant species is H. histrionicus: 65-72 % on Bering Island and 63 % on Medny Island. Subdominant is P. stelleri (16-20 % on Bering Island) as well as S. mollissima (30 % on Medny Island). The density of birds in the northern and central parts of Bering Island is 90-111.5 individuals per km of the coastline; in the south of the island, there are about 12 individuals; and on Medny Island, 14.9 individuals per km of the coastline. Over the past 25 years, the numbers of A. canagicus, A. platyrhynchos, A. acuta, B. clangula, and M. serrator have increased. P. stelleri and C. hyemalis have decreased. A. penelope, M. americana, and B. albeola began to regularly occur at the wintering, and B. bernicla, A. crecca, and A. marila have been observed more often than before. M. deglandi and M. merganser are now more common during migration, and practically are not observed at the wintering.","PeriodicalId":341033,"journal":{"name":"Bulletin of the North-East Science Center","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125875256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-29DOI: 10.34078/1814-0998-2021-4-23-38
A. V. Kondratyev, A. Andreev
New data and analysis of the avifauna and bird species abundance are given for the lake systems of the southern part of the Chersky mountain ridge. In August - October of 2018 and in June and August of 2021, bird studies of lake basins of Ui, Momontay, Malyk, Darpir and Urultun lakes, situated at altitudes of 818-1234 meters above the sea level, were performed. 81 bird species were registered, of which 69 were recorded during breeding season, including 56 species referred to breeding and 13, to summering species. In comparison to the bird fauna of neighboring mountain areas, the avifauna of the studied lake systems is characterized by low species diversity, low percentage of widely-distributed species, and high percentage of boreal-hypoartcic and hypoarctic types of zonal- landscape distribution with clearly dominating species of the Siberian origin. Species content of the studied area is similar to that of the subalpine belt of Yakutia's northern mountains in the presence of Long-toed Stint, Red-throated Pipit and Pallas' Reed Bunting as well as, contrary to the subalpine belt of the Kolyma Highland, in the absence such species as Pine Grosbeak, Siberian Rubythroat, Pallas' Leaf Warbler, and Arctic Warbler on these elevations. On the other hand, the presence of such species as Ringed Plover and Dusky Warbler and the absence of Bluethroat is similar to the bird fauna of the Kolyma Highland subalpine belt. High abundance of both Beringian and Green-headed Yellow Wagtails sharing their habitats appeared to be a unique feature of the studied area. Confirmed breeding of Fieldfare on the elevations over 1000 m above the sea level significantly increases the knowledge on the distribution and ecology of this species.
{"title":"Птицы озерных котловин южной части хребта Черского.","authors":"A. V. Kondratyev, A. Andreev","doi":"10.34078/1814-0998-2021-4-23-38","DOIUrl":"https://doi.org/10.34078/1814-0998-2021-4-23-38","url":null,"abstract":"New data and analysis of the avifauna and bird species abundance are given for the lake systems of the southern part of the Chersky mountain ridge. In August - October of 2018 and in June and August of 2021, bird studies of lake basins of Ui, Momontay, Malyk, Darpir and Urultun lakes, situated at altitudes of 818-1234 meters above the sea level, were performed. 81 bird species were registered, of which 69 were recorded during breeding season, including 56 species referred to breeding and 13, to summering species. In comparison to the bird fauna of neighboring mountain areas, the avifauna of the studied lake systems is characterized by low species diversity, low percentage of widely-distributed species, and high percentage of boreal-hypoartcic and hypoarctic types of zonal- landscape distribution with clearly dominating species of the Siberian origin. Species content of the studied area is similar to that of the subalpine belt of Yakutia's northern mountains in the presence of Long-toed Stint, Red-throated Pipit and Pallas' Reed Bunting as well as, contrary to the subalpine belt of the Kolyma Highland, in the absence such species as Pine Grosbeak, Siberian Rubythroat, Pallas' Leaf Warbler, and Arctic Warbler on these elevations. On the other hand, the presence of such species as Ringed Plover and Dusky Warbler and the absence of Bluethroat is similar to the bird fauna of the Kolyma Highland subalpine belt. High abundance of both Beringian and Green-headed Yellow Wagtails sharing their habitats appeared to be a unique feature of the studied area. Confirmed breeding of Fieldfare on the elevations over 1000 m above the sea level significantly increases the knowledge on the distribution and ecology of this species.","PeriodicalId":341033,"journal":{"name":"Bulletin of the North-East Science Center","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123964123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-29DOI: 10.34078/1814-0998-2021-4-39-50
E. V. Shemyakin, L. G. Vartapetov, A. G. Larionov
The results of bird route censuses, conducted on the territory of the Aldan Highland in the first half of summer and generally covering the period from 2000 to 2019, were analyzed. The total length of the routes was about 2815 km. A total of 116 initial variants of the bird population were used. Based on the results of multivariate factor analysis for 160 species registered in these censuses, a hierarchical classification of their preference for habitats was drawn up. The classification showed that 45 % of birds prefer forests, woodlands and burned areas, 26.2 % - water bodies and their banks, 13.8 % - bogs and meadows, 9.4 % - villages and cities, 5.6 % - mountain tundra. A comparative analysis with a similar classification for the Altai Highland has been performed. The main differences in the territorial distribution of bird species in the Aldan Highland and Altai lie in a smaller number of identified types of preferences in our region. Due to the homogeneity of forest biotopes and the absence of the steppe, forest-steppe, subnival, and nival zones in the Aldan Highland, the corresponding landscapes are not represented here, which determines the absence of the steppe, forest-meadow-steppe, meadow-bog, and subnival types. Similarly to Altai, the forest, tundra and synanthropic types of preference are distinguished in the Aldan Highland.
{"title":"Пространственное распределение птиц Алданского нагорья.","authors":"E. V. Shemyakin, L. G. Vartapetov, A. G. Larionov","doi":"10.34078/1814-0998-2021-4-39-50","DOIUrl":"https://doi.org/10.34078/1814-0998-2021-4-39-50","url":null,"abstract":"The results of bird route censuses, conducted on the territory of the Aldan Highland in the first half of summer and generally covering the period from 2000 to 2019, were analyzed. The total length of the routes was about 2815 km. A total of 116 initial variants of the bird population were used. Based on the results of multivariate factor analysis for 160 species registered in these censuses, a hierarchical classification of their preference for habitats was drawn up. The classification showed that 45 % of birds prefer forests, woodlands and burned areas, 26.2 % - water bodies and their banks, 13.8 % - bogs and meadows, 9.4 % - villages and cities, 5.6 % - mountain tundra. A comparative analysis with a similar classification for the Altai Highland has been performed. The main differences in the territorial distribution of bird species in the Aldan Highland and Altai lie in a smaller number of identified types of preferences in our region. Due to the homogeneity of forest biotopes and the absence of the steppe, forest-steppe, subnival, and nival zones in the Aldan Highland, the corresponding landscapes are not represented here, which determines the absence of the steppe, forest-meadow-steppe, meadow-bog, and subnival types. Similarly to Altai, the forest, tundra and synanthropic types of preference are distinguished in the Aldan Highland.","PeriodicalId":341033,"journal":{"name":"Bulletin of the North-East Science Center","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132574862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-29DOI: 10.34078/1814-0998-2021-4-109-116
O. M. Orlovskaya, N. Dokuchaev
Data on trematodes (Trematoda) of the Siberian Cipmunk (Tamias sibiricus) in Magadan Oblast are presented. Four trematode species of the two families (Plagiorchiidae Lühe, 1901 (Plagiorchis vespertilionis (Müller, 1780); Pl. elegans (Rudolphi, 1802), Pl. eutamiatis (Schulz, 1932), and Brachylaimidae Goyeux et Folay, 1930 (Brachylaima recurva (Dujardin, 1845)) are identified. An illustrated description of all the four species of trematodes, first noted in the Chipmunk in the North-East of Russia, is given.
{"title":"Трематоды (Trematoda, Plathelminthes) азиатского бурундука (Tamias sibiricus) Магаданской области.","authors":"O. M. Orlovskaya, N. Dokuchaev","doi":"10.34078/1814-0998-2021-4-109-116","DOIUrl":"https://doi.org/10.34078/1814-0998-2021-4-109-116","url":null,"abstract":"Data on trematodes (Trematoda) of the Siberian Cipmunk (Tamias sibiricus) in Magadan Oblast are presented. Four trematode species of the two families (Plagiorchiidae Lühe, 1901 (Plagiorchis vespertilionis (Müller, 1780); Pl. elegans (Rudolphi, 1802), Pl. eutamiatis (Schulz, 1932), and Brachylaimidae Goyeux et Folay, 1930 (Brachylaima recurva (Dujardin, 1845)) are identified. An illustrated description of all the four species of trematodes, first noted in the Chipmunk in the North-East of Russia, is given.","PeriodicalId":341033,"journal":{"name":"Bulletin of the North-East Science Center","volume":"50 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131956843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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