scholarly journals Acanthodiaptomus tibetanus (Daday, 1908) (Calanoida, Diaptomidae) – a biogeographic relict in the water bodies of Baikal Rift Zone

2022 ◽  
Vol 962 (1) ◽  
pp. 012021
Author(s):  
I F Krivenkova ◽  
O G Pen’kova ◽  
N V Makarkina ◽  
N G Sheveleva
Keyword(s):  
Geographic Distribution ◽  
Rift Zone ◽  
Historical Analysis ◽  
Personal Data ◽  
Distribution Patterns ◽  
Baikal Rift Zone ◽  
Morphological Description ◽  
Irkutsk Region ◽  
Relief Formation ◽  
First Time

Abstract A detailed morphological description of the copepod Acanthodiaptomus tibetanus and its geographic distribution on the territory of Irkutsk Region, Buryat Republic, Zabaikalsky Region and Republic of Sakha (Yakutia) within the limits of Baikal Rift Zone is presented for the first time. The authors provided information on the paleogeographic conditions of the territory these crustaceans inhabited and characterized their habitats in brief. An overview of the personal data and available literature on the geographic distribution of A. tibetanus is given. One of the major results obtained under this study was elucidation of the distribution patterns of A. tibetanus. In order to understand current distribution patterns of organisms, A. tibetanus in particular, in different basins, we carried out a historical analysis of the relief formation taking into account climatic aspects involved in these transformations.

Comparative anatomy of the gut of the South American species of Amitermes, with description of two new species and an identification key based on soldiers and workers

Zootaxa ◽  
2020 ◽  
Vol 4751 (1) ◽  
pp. 75-104
Author(s):  
MAURICIO M. ROCHA ◽  
ELIANA M. CANCELLO
Keyword(s):  
New Species ◽  
South America ◽  
Geographic Distribution ◽  
Comparative Anatomy ◽  
Distribution Patterns ◽  
South American ◽  
The South ◽  
South American Species ◽  
Two New Species ◽  
First Time

In this contribution we present updates on the taxonomy and morphology of the South American species of Amitermes. Two new species are described: Amitermes bandeirai, sp. n., from Brazil, and Amitermes lilloi, sp. n., from Argentina. Amitermes nordestinus is a junior synonym of Amitermes aporema. The imago of A. aporema is described for the first time. Detailed comparative gut anatomy of the eight species is presented for the first time. The geographic distribution of Amitermes in South America is expanded and the distribution patterns of some species are discussed. 

New records of araneid spiders (Araneae: Araneidae) in the Colombian Amazon Region

Zootaxa ◽  
2010 ◽  
Vol 2626 (1) ◽  
pp. 46 ◽  
Author(s):  
JAIME PINZON ◽  
LIGIA BENAVIDES ◽  
ALEXANDER SABOGAL
Keyword(s):  
South America ◽  
Geographic Distribution ◽  
New Records ◽  
Distribution Patterns ◽  
Amazon Region ◽  
Museum Collections ◽  
Geographic Position ◽  
New Information ◽  
Colombian Amazon ◽  
First Time

We have revised all the specimens of Araneidae from the Colombian Amazon Region in the Arachnological Collection of the Instituto de Ciencias Naturales at the Universidad Nacional de Colombia (ICN), in addition to the specimens collected between 2000 and 2004 by the authors in the lower Caquetá and Apaporis rivers (Amazonas and Vaupés, Colombia). A total of 77 new records for Araneidae in the Colombian Amazon are reported; 26 of these species are new records for the country and the region in addition to 15 more species known for Colombia but newly recorded in the region, the distribution of the remaining 36 species is expanded within the region. The genera Encyosaccus Simon 1865 (E. sexmaculatus Simon 1895), Hingstepeira Levi 1995 (H. folisecens Hingston 1932) and Micrepeira Schenkel 1953 (M. fowleri Levi 1995 and M. tubulofasciens Hingston 1932) are recorded for the first time in Colombia. From this revision, it is evident the great amount of new information available in museum collections. Due to the strategic geographic position of Colombia, species inventories in different localities of the Colombian Amazon Region are important to fill distributional gaps of many species in South America. This work contributes to the knowledge of geographic distribution patterns of orb-weaving species in Colombia and in the entire Amazon Region.

scholarly journals Extended Genetic Diversity of Bovine Viral Diarrhea Virus and Frequency of Genotypes and Subtypes in Cattle in Italy between 1995 and 2013

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Camilla Luzzago ◽  
Stefania Lauzi ◽  
Erika Ebranati ◽  
Monica Giammarioli ◽  
Ana Moreno ◽  
...  
Keyword(s):  
Geographic Distribution ◽  
Bovine Viral Diarrhea Virus ◽  
Genetic Variant ◽  
Natural Infection ◽  
Distribution Patterns ◽  
Bovine Viral Diarrhea ◽  
Diarrhea Virus ◽  
Viral Diarrhea ◽  
Viral Diarrhea Virus ◽  
First Time

Genetic typing of bovine viral diarrhea virus (BVDV) has distinguished BVDV-1 and BVDV-2 species and an emerging putative third species (HoBi-like virus), recently detected in southern Italy, signaling the occurrence of natural infection in Europe. Recognizing the need to update the data on BVDV genetic variability in Italy for mounting local and European alerts, a wide collection of5′UTR sequences (n= 371) was selected to identify the frequency of genotypes and subtypes at the herd level. BVDV-1 had the highest frequency, followed by sporadic BVDV-2. No novel HoBi-like viruses were identified. Four distribution patterns of BVDV-1 subtypes were observed: highly prevalent subtypes with a wide temporal-spatial distribution (1b and 1e), low prevalent subtypes with a widespread geographic distribution (1a, 1d, 1g, 1h, and 1k) or a restricted geographic distribution (1f), and sporadic subtypes detected only in single herds (1c, 1j, and 1l). BVDV-1c, k, and l are reported for the first time in Italy. A unique genetic variant was detected in the majority of herds, but cocirculation of genetic variants was also observed. Northern Italy ranked first for BVDV introduction, prevalence, and dispersion. Nevertheless, the presence of sporadic variants in other restricted areas suggests the risk of different routes of BVDV introduction.

Filling a knowledge gap of two centuries: rediscovery of Eugenia subamplexicaulis (Myrtaceae) with notes on its morphology, distribution and conservation

Phytotaxa ◽  
2020 ◽  
Vol 428 (2) ◽  
pp. 139-145
Author(s):  
THIAGO FERNANDES ◽  
JAIR EUSTÁQUIO QUINTINO FARIA ◽  
CAROLYN ELINORE BARNES PROENÇA ◽  
JOÃO MARCELO ALVARENGA BRAGA
Keyword(s):  
Geographic Distribution ◽  
Protected Area ◽  
Rio De Janeiro ◽  
Conservation Status ◽  
Original Description ◽  
Morphological Description ◽  
Paulo State ◽  
First Time ◽  
Janeiro State ◽  
Made In

Eugenia subamplexicaulis belongs to Eugenia sect. Pilothecium and was described based on a collection made in São Paulo state by C.F.P. von Martius in 1817. After that, no other collection of this species was made until May 2018, over 200 years later, when this species was rediscovered in the rocky formation Monumento Natural da Pedra de Itaocaia, a protected area located in Rio de Janeiro state. This study provides an enhanced morphological description of the species, notes on its morphological affinities, geographic distribution and conservation status. The species can be recognized by its subsessile leaves, dichasial inflorescences and oblate fruits with up to three seeds. The fruits are described for the first time, since the original description was based only on a single flowering specimen. Additionally, the first photographic documentation of the live plant in its habitat is presented.

Vegetation of sandy coasts of Lake Baikal

2016 ◽  
pp. 46-66
Author(s):  
Тю Фю Dulepova
Keyword(s):  
Lake Baikal ◽  
Lake Basin ◽  
Floristic Diversity ◽  
Southern Siberia ◽  
Irkutsk Region ◽  
Relief Formation ◽  
The Republic ◽  
River Valleys ◽  
High Degree ◽  
Semiarid Conditions

The aeolian processes play an important role in the relief formation under the semiarid conditions of the intermountain basins of Southern Siberia. Ancient sand landforms occur in different regions of Siberia — the Ob, Chuya, Аley, Yenisei, Аngara, Selenga, Chikoy, Khilok and Chara river valleys and Lake Baikal coasts. The sandy coasts of Lake Baikal are of great interest in terms of floristic diversity determined by a high degree of endemism. Despite centuries of study of the lake basin, sand vegetation is poorly described in the literature. This study presents an analysis of 184 relevés of psammophytic vegetation from the Republic of Buryatia (Severobaikalsky, Barguzinsky, Pribaikalsky districts) and Irkutsk region (Olkhon Island) obtained in 2009–2014.

The first record of Jaapia ochroleuca (Basidiomycota) in the European part of Russia

2013 ◽  
Vol 47 ◽  
pp. 68-73
Author(s):  
S. V. Volobuev
Keyword(s):  
Nature Reserve ◽  
First Record ◽  
European Part ◽  
European Russia ◽  
Taxonomic Position ◽  
Morphological Description ◽  
Microscopic Structure ◽  
European Part Of Russia ◽  
Distribution And Ecology ◽  
First Time

The corticioid basidiomycete Jaapia ochroleuca (Bres.) Nannf. et J. Erikss. is recorded for the first time in the European Russia from the «Bryansky Les» Nature Reserve (Bryansk Region). The taxonomic position of the species is defined briefly. Its morphological description and data on distribution and ecology are provided. The details of microscopic structure of the collected specimen are illustrated.

Morphological description of the pupa and redescription of the adults and larva of Culex (Culex) apicinus Philippi (Diptera: Culicidae)

Zootaxa ◽  
2008 ◽  
Vol 1941 (1) ◽  
pp. 31-42 ◽  
Author(s):  
GUSTAVO CARLOS ROSSI ◽  
MAGDALENA LAURITO ◽  
WALTER RICARDO ALMIRÓN
Keyword(s):  
Species Distribution ◽  
Male Genitalia ◽  
Stage Larva ◽  
Morphological Description ◽  
Fourth Stage ◽  
Available Information ◽  
First Time ◽  
Fourth Stage Larva

The adult, fourth-stage larvae and the male genitalia of Culex (Culex) apicinus Philippi is redescribed. The pupa is described for the first time. The male genitalia, pupa and fourth-stage larva are illustrated. The available information on the taxonomy and distribution of the species is also included, extending the species distribution in Argentina. Bionomics and distributional data are provided for Culex apicinus.

Variations of the electromagnetic fields and ionospheric parameters in the Baikal Rift Zone

2012 ◽  
Vol 48 (4) ◽  
pp. 354-362 ◽  
Author(s):  
B. G. Gavrilov ◽  
Yu. I. Zetzer ◽  
V. I. Kurkin ◽  
I. E. Markovich ◽  
Yu. V. Poklad ◽  
...  
Keyword(s):  
Electromagnetic Fields ◽  
Rift Zone ◽  
Baikal Rift Zone
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