scholarly journals The modern species composition of the family Chenopodiaceae Vent. (Amaranthaceae Juss.) of the flora of the desert part of the Syrdarya river valley

2021 ◽  
Vol 20 (1) ◽  
pp. 336-340
Author(s):  
B. B Osmonali ◽  
P. V Vesselova ◽  
G. M. Kudabayeva
Keyword(s):  
Species Composition ◽  
Plant Communities ◽  
Research Process ◽  
River Valley ◽  
Number Of Species ◽  
The North ◽  
Modern Species ◽  
The Family ◽  
River Valleys ◽  
Current Species

Representatives of the Chenopodiaceae Vent. family are the hallmark of the flora of the desert regionsof Kazakhstan, as they far outnumber other leading families. Moreover, this applies not only to the flora of the mountainousterritories, but also to the flora of the river valleys, in particular, the flora of the wide valley of the Syrdarya river. Thepredominance of Chenopodiaceae is due to the excellent adaptability of its species to desert conditions. Quite a few speciesof Chenopodiaceae are dominant plant communities, especially in the middle deserts of the North Turan province. Amongthem there are many species that have useful properties (forage, landscape, medicinal, etc.). The aim of the work was toidentify the current species composition of the Chenopodiaceae family (Amaranthaceae Juss.) of the flora of the desertpart of the Syrdarya river valley. Classical botanical methods were used in the research process. As a result of the conductedstudies, the modern species composition of the Chenopodiaceae family of the studied territory, consisting of 112 speciesfrom 38 genera, was revealed. The three largest genera include genera: Salsola–17 species, Atriplex–15 species, Suaeda–11species. The remaining genera contain from 6 to 1 species. Genera represented by a small number of species predominate(26 genera of 1–2 species each).

scholarly journals Pleistocene horses (genus Equus) in the central Balkans

2003 ◽  
pp. 55-75 ◽  
Author(s):  
Ann Forsten ◽  
Vesna Dimitrijevic
Keyword(s):  
Late Pleistocene ◽  
River Valley ◽  
Middle Pleistocene ◽  
Mountainous Area ◽  
Migration Routes ◽  
Northern Greece ◽  
The North ◽  
Time Period ◽  
Morava River ◽  
River Valleys

A review of the fossil horses of the genus Equus from the central Balkans, a mountainous area comprising Serbia and Montenegro, is presented in this paper. The time period covered by the finds is from the late Early to and including the Late Pleistocene, but the record is not complete: the dated finds are Late Pleistocene in age, while Early and Middle Pleistocene are poorly represented. The horses found resemble those from neighbouring countries from the same time period, probably showing the importance of river valleys as migration routes. The Morava River valley runs in a roughly south-to-north direction, connecting, via the Danube and Tisa River valleys the Hungarian Pannonian Plain in the north with northern Greece in the south, via the Vardar River valley in Macedonia. In Pleistocene, large mammals, including horses, probably used this route for dispersal.

Eocene paleo-physiography and drainage directions, southern Interior Plateau, British Columbia

2005 ◽  
Vol 42 (2) ◽  
pp. 215-230 ◽  
Author(s):  
Selina Tribe
Keyword(s):  
British Columbia ◽  
Middle Eocene ◽  
Regional Scale ◽  
River Valley ◽  
Coast Mountains ◽  
Base Level ◽  
The North ◽  
Bedrock Geology ◽  
River Valleys ◽  
Early Cenozoic

A map of reconstructed Eocene physiography and drainage directions is presented for the southern Interior Plateau region, British Columbia south of 53°N. Eocene landforms are inferred from the distribution and depositional paleoenvironment of Eocene rocks and from crosscutting relationships between regional-scale geomorphology and bedrock geology of known age. Eocene drainage directions are inferred from physiography, relief, and base level elevations of the sub-Eocene unconformity and the documented distribution, provenance, and paleocurrents of early Cenozoic fluvial sediments. The Eocene landscape of the southern Interior Plateau resembled its modern counterpart, with highlands, plains, and deeply incised drainages, except regional drainage was to the north. An anabranching valley system trending west and northwest from Quesnel and Shuswap Highlands, across the Cariboo Plateau to the Fraser River valley, contained north-flowing streams from Eocene to early Quaternary time. Other valleys dating back at least to Middle Eocene time include the North Thompson valley south of Clearwater, Thompson valley from Kamloops to Spences Bridge, the valley containing Nicola Lake, Bridge River valley, and Okanagan Lake valley. During the early Cenozoic, highlands existed where the Coast Mountains are today. Southward drainage along the modern Fraser, Chilcotin, and Thompson River valleys was established after the Late Miocene.

The Archaeological Delineation of a Cultural Boundary in Papagueria

1955 ◽  
Vol 20 (4Part1) ◽  
pp. 367-374 ◽  
Author(s):  
Paul H. Ezell
Keyword(s):  
Gulf Of California ◽  
Colorado River ◽  
River Valley ◽  
Historical Sources ◽  
Gila River ◽  
The North ◽  
Ethnic Boundary ◽  
Cultural Boundary ◽  
Imaginary Line ◽  
River Valleys

The area dealt with in this report is that portion of northwestern Sonora and southwestern Arizona bounded on the southwest by the Gulf of California, on the west by the Colorado River valley below the junction of the Gila River, on the north by the Gila River valley, and on the east by an imaginary line from the vicinity of Gila Bend south along the western edge of the Papago Reservation and thence southwest to the mouth of the Sonoyta River on the Gulf of California (Fig. 106). Within this area Sauer has suggested a boundary between the Piman-speaking people of southern Arizona and northern Sonora, and the Yuman-speaking tribes of the lower Colorado and Gila River valleys, based on linguistic affiliations described in early historical sources (Sauer 1934, map). On archaeological evidence Gifford has suggested that the locality between Punta La Cholla and the mouth of the Sonoyta River represented a point on an ethnic boundary (Gifford 1946: 221).

scholarly journals BIODIVERSITY OF HEMIPTERA (HETEROPTERA) OF THE INFRAORDER PENTATOMOMORPHA I OF THE ILE-ALATAU STATE NATIONAL NATURE PARK

REPORTS ◽  
2021 ◽  
Vol 2 (336) ◽  
pp. 105-111
Author(s):  
P. A. Esenbekova ◽  
◽  
A. N. Iskakova ◽  
G. D. Anarbekova
Keyword(s):  
Species Composition ◽  
Field Research ◽  
Trophic Specialization ◽  
Stages Of Development ◽  
Predominant Species ◽  
Number Of Species ◽  
Natural Park ◽  
The Family ◽  
Two Generations ◽  
Nature Park

The article presents the results of field research conducted in 2020 on the territory of the Ile-Alatau State National Natural Park. As a result of the conducted research, 32 species belonging to 2 families of hemiptera of the infraorder Pentatomomorpha I were identified. Among them, the predominant species composition of the family Lygaeidae is 21 species (66%), and 11 species are known from the family Aradidae (34%). On trophic specialization, they are divided into mycetophagy (11 species), phytophages (21 species, of which politicology – 16 types, wide oligotherapy – 3, narrow oligotherapy – 2). According to the type of food, both taking into account the number and number of species in the complex of hemiptera, phytophages clearly predominate. According to the number of generations per year, the hemiptera of the Ile-Alatau SNNP are divided into 4 groups: acyclic (different stages of development can be found simultaneously throughout the year) – 11 species, monovoltine (one generation per year) - 15 species, bivoltine (two generations per year) – 5 species, polyvoltine (several generations per year) - 1 species. There are 30 species with mesophilic ecology in the study area, only 1 species is hygromesophilus. Among the hemiptera of the Ile-Alatau GNPP, 19 species (61%) overwinter in the imago stage, 11 species (35%) in the imago and larvae stage, and 1 species (4%) in the egg stage.

scholarly journals Diptera, Drosophilidae: historical occurrence in Brazil

Check List ◽  
2008 ◽  
Vol 4 (4) ◽  
pp. 485 ◽  
Author(s):  
Marco S. Gottschalk ◽  
Paulo R. P. Hofmann ◽  
Vera L. S. Valente
Keyword(s):  
Literature Review ◽  
Species Distribution ◽  
Species Occurrence ◽  
Number Of Species ◽  
The North ◽  
The Family ◽  
Collection Methods

This study presents a literature review of Drosophilidae (Diptera) species occurrence in Brazil. The number of species recorded is 304, with Drosophila being the genus with the greatest number of species, followed by Zygothrica, Hirtodrosophila and Diathoneura, which belong to the Drosophilinae subfamily. Drosophila was shown to be the most investigated taxon in the family, with the best resolved species distribution. The low number of records of species from other genera indicates the paucity of studies specifically designed to investigate these species. Records of species for some regions of the country like the north and northeast, as well as for some biomes like Caatinga, Pantanal and the Pampas, are likewise rare. Apart from the banana bait, different collection methods may be necessary, like the collection at other oviposition resources, the use of baits other than fermenting fruit, and the adoption of sampling approaches that do not use baits.  

scholarly journals Taxonomic analysis of the family Boraginaceae in the “Flora of Uzbekistan”

2021 ◽  
Vol 38 ◽  
pp. 00095
Author(s):  
Svetlana Ovchinnikova ◽  
Dilorom Tajetdinova ◽  
Komiljon Tojibaev
Keyword(s):  
Species Composition ◽  
Taxonomic Analysis ◽  
Number Of Species ◽  
The Family

As a result of the studies, it was revealed that on the territory of Uzbekistan Heliotropiaceae family is represented by 2 genera and 15 species and Boraginaceae family is represented by 31 genera and 118 species, distributed in 10 tribes. The largest number of species is represented by the genera from the tribes Eritirchieae (31) and Cynoglosseae (25). Tribe Lithospermeae (21) is distinguished by specificity of the species composition. The most ancient tribes Boragineae (8), Echieae (3), Trichdesmeae (3) are represented by a small number of taxa.

scholarly journals Thirty years of ecological research at the Gran Sasso d’Italia LTER site: climate change in action

2019 ◽  
Vol 34 ◽  
pp. 9-39 ◽  
Author(s):  
Bruno Petriccione ◽  
Alessandro Bricca
Keyword(s):  
Climate Change ◽  
Species Composition ◽  
Snow Cover ◽  
Plant Communities ◽  
High Mountain ◽  
Mesic Grassland ◽  
Number Of Species ◽  
Drought Tolerant ◽  
Tolerant Species ◽  
Competitive Species

Since 1986, vegetation monitoring of alpine plant communities has been performed at the Gran Sasso d’Italia LTER site (https://deims.org/c0738b00-854c-418f-8d4f-69b03486e9fd) in the Central Apennines, through phytosociological relevés and abundance and coverage estimation of the vascular flora at fine scale. The monitoring activities for abiotic parameters regard air and soil temperatures, rainfall, snowfall and snow cover persistence. A comparative analysis of changes in species composition, life forms, life strategies and morpho-functional types allowed recognition of dynamical processes (fluctuation and degeneration) and an increase in stress- and drought-tolerant and ruderal species, probably linked to a general process of climate change. A trend of variation forced by increasing drought was recorded in high-mountain plant communities, normally within a dynamic fluctuation process. There has been a 50–80% change in species composition with respect to the total number of species observed over the years. Whereas the total number of species has increased in all communities, in high-mountain mesic grassland 20% of sensitive species have completely disappeared. Early signs of a degeneration process were already discernible after seven years: such signs are more evident in snow-dependent communities, with a quantitative increase in more thermophilic and drought-tolerant species and a parallel decrease in more mesic, cryophilic and competitive species. In particular, the following phenomena have been recorded in high-mountain mesic grassland, in agreement with predicted or observed phenomena in other Alpine or Arctic areas: (a) coverage increase (or appearance) of ruderal and stress- and drought-tolerant species; (b) coverage decrease (or disappearance) of cryophilic, mesic and competitive species. These short-term changes could lead, in the medium- or long-term, to a disgregation process affecting the high elevation plant communities of the Apennines (including the local extinction of most of the cold-adapted species), due to their very low resilience. The phenomena described may be linked to the observed climate change which occurred during the last century (in particular in the last 50 years) in the Apennines, consisting mainly, in the mountains, of a strong reduction in the duration of snow-cover and an increase in mean and minimum annual temperatures.

scholarly journals The lichens of the plant communities in the middle reaches of the Uty River Valley

2019 ◽  
Vol 16 ◽  
pp. 00027
Author(s):  
Alena Sagalakova ◽  
Olga Zyryanova ◽  
Mariya Larina
Keyword(s):  
Plant Communities ◽  
Life Form ◽  
River Valley ◽  
Number Of Species

The article presents the data on the species communities situated in the middle reaches of the Uty river valley (Beisky District, Republic of Khakassia). The taxonomic list of lichens is represented by 51 taxa of a species rank belonging to 24 genera and 11 families. The largest number of species is characterized by the crustose life form. Mesophytes and epiphytes are predominant in the terms of ecological substrate.

Lentibulariaceae from the Viruá National Park in the northern Amazon, Roraima, Brazil

Phytotaxa ◽  
2016 ◽  
Vol 258 (1) ◽  
pp. 1 ◽  
Author(s):  
Suzana Maria Costa ◽  
Volker Bittrich ◽  
Maria do Carmo Estanislau Do Amaral
Keyword(s):  
Species Composition ◽  
Geographic Distribution ◽  
National Park ◽  
Close Similarity ◽  
Guiana Shield ◽  
Floristic Survey ◽  
Number Of Species ◽  
The Family ◽  
Species Descriptions ◽  
New Occurrences

Lentibulariaceae is the family with the second highest number of species in the Viruá National Park (VNP) according to a recent floristic survey of the aquatic and palustrine angiosperms there. The aim of the present study is to provide identification material and information on those species of Lentibulariaceae. Species descriptions were based on recent vouchers collected by the authors and previous collections deposited in various herbaria. We present keys, brief descriptions and images, comments on morphology and the geographic distribution of three species of Genlisea and 22 species of Utricularia. The eight new occurrences raise the number of known species for the family in Roraima to 39. The species composition of the Lentibulariaceae in VNP shows a close similarity with that one of the family on the Guiana Shield.

When Villages Do Not Form

2018 ◽  
pp. 73-88 ◽  
Author(s):  
Eric E. Jones
Keyword(s):  
North Carolina ◽  
Late Woodland ◽  
River Valley ◽  
Woodland Period ◽  
Spatial Patterning ◽  
Cultural Patterns ◽  
Late Woodland Period ◽  
The North ◽  
Regional Settlement ◽  
River Valleys

From AD 800 to 1300, Piedmont Village Tradition (PVT) settlements were characterized by small numbers of loosely arranged households. In the Late Woodland period (after AD 1300) in the Dan, Eno, and Haw River valleys, these households coalesced into villages with planned layouts and cooperatively built structures. However, in the upper Yadkin River Valley, the pattern of loosely arranged households appears to have continued until out-migration from the valley in the 1600s. Through the examination of regional settlement ecology and site-level spatial patterning, this chapter explores how the environment and the sociopolitical and economic landscapes that resulted from the formation of PVT and Mississippian villages influenced the distinctive cultural patterns in the upper Yadkin River valley and the North Carolina peidmont.

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