scholarly journals Field explorations in the Novgorod province together with Tamara Nikolaevna Onipko (Smekalova)

VAVILOVIA ◽  
2020 ◽  
Vol 3 (1) ◽  
pp. 60-66
Author(s):  
L. I. Krupkina

The article describes field explorations carried out together with Tamara N. Onipko (Smekalova) in 1980 in the Pestovsky District of the Novgorod Province. The description of living conditions and floristic research is given. As a result of the research, 19 species of vascular plants were discovered, new for the entire Novgorod region at that time. These are aboriginal species Phleum phleoides (L.) Karst., Festuca brevipila R. Tracey, Epipogium aphyllum Sw., Salix daphnoides Vill., Eremogone saxatilis (L.) Ikonn., Scleranthus perennis L., Alchemilla subcrenata Bus., Lotus zhegulensis Klok., Euphrasia parviflora Schag., Ptarmica salicifolia (Bess.) Serg., Hieracium diaphanoides Lindeb., and also some invasive plants, quite rare at that time: Corispermum marschallii Stev., Lepidium latifolium L., Medicago romanica Prod., Securigera varia (L.) Lassen, Geranium sibiricum L., Impatiens glandulifera Royle, Cruciata laevipes Opiz, Echinocystis lobata (Michx.) Torr. et Gray. Almost 60 species were found to be new for the Mologa floristic region.

Author(s):  
A.L. Ebel ◽  
◽  
S.A. Sheremetova ◽  
I.A. Khrustaleva ◽  
T.O. Strelnikova ◽  
...  

As a result of the field studies, analysis of publications and herbarium materials, it has been established that by now the alien flora of the Republic of Khakassia includes about 140 species of vascular plants. Of this number, more than 30 species are invasive plants included in the “Black Book of Flora of Siberia” (2016). In recent years, there has been both a fairly rapid replenishment of the flora with alien plants and a noticeable dispersal of a number of invasive species across the territory of Khakassia. For the purpose of monitoring alien plant species, we use the capabilities of the international scientific network iNaturalist.org.


2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Dody Priosambodo ◽  
Khairul Amri ◽  
Mahatma Lanuru

Penelitian tentang inventarisasi spesies tumbuhan di pulau Barrangcaddi yang berpenduduk padat telah dilakukan. Tujuan penelitian ini adalah untuk mengetahui jenis-jenis tumbuhan asli, tumbuhan introduksi dan tumbuhan invasif di Pulau Barrangcaddi. Kegiatan sampling dilakukan dengan metode purposive sampling. Data diambil dengan mencatat semua spesies tumbuhan yang ditemukan selama penjelajahan di pulau Barrangcaddi. Seluruh sampel di foto. Sampel tumbuhan yang tidak diketahui namanya, di ambil bagian-bagiannya, kemudian dikoleksi dan diidentifikasi di laboratorium Ilmu Lingkungan dan Kelautan, Departemen Biologi, Fakultas MIPA, Universitas Hasanuddin. Identifikasi sampel menggunakan buku: An Annotated Check-List of The Vascular Plants of The South China Sea and Its Shores oleh Turner et al. (2000) dan Mangrove Guidebook for Southeast Asia oleh Wim Giesen et al. (2007) untuk spesies hutan pantai; Tropical flowering plants: a guide to identification and cultivation oleh Kirsten Albrecht Llamas (2003) untuk spesies tanaman hias dan tanaman budidaya/introduksi serta Nonnative Invasive Plants of Pacific Coast Forest. A Field Guide for Identification oleh Gray et al. (2011) dan Guide to The Naturalized and Invasive Plants of Southeast Asia oleh Arne Witt (2017) untuk spesies tumbuhan invasif. Dari hasil penelitian di pulau Barrangcaddi tercatat sebanyak 142 spesies tumbuhan dari 51 suku. Sebagian besar didominasi oleh tanaman hias dan budidaya (introduksi) dengan 103 spesies dari 42 suku diikuti spesies asli (native species) dengan jumlah 29 spesies dari 19 suku. Spesies invasif tercatat paling sedikit dengan jumlah 10 spesies dari 5 suku. Sebagian besar tutupan vegetasi dari spesies asli telah hilang akibat alih fungsi lahan menjadi permukiman.


2021 ◽  
Vol 1 (8) ◽  
pp. 18-29
Author(s):  
Lidiya Anishchenko ◽  

According to the results of the study of the flora of the natural monument of regional natural monument «Pe-trovskoe swamp» (Russia, Bryansk Region, Mglinsky district), carried out in 2018–2019, annotated lists of vas-cular plants and bryophytes were compiled. The flora of vascular plants includes 367 species from 80 families. The largest number of species is found in the families Asteraceae (40 species), Poaceae (34), Rosaceae (25), Fabaceae (19), Cyperaceae, Lamiaceae and Apiaceae (17), Caryophyllaceae (13), Ranunculaceae (15), Brassi-caceae and Scrophylariaceae (10). 5 of these species are listed in the regional Red Data Book (Krasnaia..., 2016): Diphasiastrum complanatum, Juniperus communis, Lathyrus pisiformis, Pulsatilla patens, Sanicula europaea. Alien species were recorded, including those spreading from cultivated coenoses in nearby settlements: Acer negundo, Amelanchier spicata, Echinocystis lobata, Helianthus tuberosus, Hemerocallis fulva, Hesperis pycnotricha, Levisticum officinalis, Oxalis stricta, Rudbeckia laciniata, Saponaria officinali, Sorbaria sorbifolia. Bryophytes belong to 107 species in 41 families. New localities of mosses listed in the regional Red Data Book were discovered: Homalia trichomanoides, Neckera pennata, Sphagnum jensenii. Indicator species of old-growth forests were noted: Anomodon longifolius, Homalia trichomanoides, Hypnum cupressiforme, Neckera pennata, Stereodon pallescens.


2020 ◽  
Vol 4 (7) ◽  
pp. 4-27
Author(s):  
Svetlana Gareeva ◽  
◽  
Yaroslav Golovanov ◽  
Airat Khusainov ◽  
◽  
...  

The work is based on the data of field studies carried out by the route method during 2017–2018 within the ad-ministrative boundaries of Yanaul city (Republic of Bashkortostan). According to research results, the flora of Yanaul includes 485 species of vascular plants from 286 genera and 81 families; 174 species are adventive, of which 38 can be classified as invasive and potentially invasive species. Among the most aggressive invasive species are Acer negundo, Echinocystis lobata, Elodea canadensis, Heracleum sosnowskyi, Hordeum jubatum, Lupinus polyphyllus, Xanthium album. Also, large areas within the city are occupied by an invasive species Soli-dago gigantea. 1 relict species (Campanula trachelium) was recorded, growing in the preserved areas with natu-ral vegetation. For each species, the attachment to certain habitats and the frequency of occurrence are given. For adventive species, information on the time, way of invasion and degree of naturalization are indicated. For inva-sive species, their status is indicated.


2015 ◽  
Vol 3 (2) ◽  
pp. 11-22
Author(s):  
Oksana O. Kucher

AbstractThe results of an investigation of the invasive species in the flora of the Starobilsk grass-meadow steppe are presented. Check-list of alien plant has over 386 species of vascular plants of which 28 species are invasive. We have identified 6 transformer species from the invasive plants. We aggregate data on the entry, distribution history, ecology, occurrence in different plant communities, degree of their naturalization and the habitats where they occur. The leading families of invasive species are: Asteraceae. The basis for this group is presented by origin from the North America and the Mediterranean. With respect to the time of immigration, most of them are kenophytes. By the method of introduction, ksenophytes are dominated; according to the degree of naturalization epoecophytes and agriophytes dominate in this group. With regard to the characteristics of life forms, half of invasive species are terophytes. The vast majority of plants are heliophytes and xeromesophytes. Most species are found in biotopes group I: Cultivated agricultural biotopes; least of all species found in biotopes group F: Biotopes dominated by chamephytes and nanophanerophytes. Only 3 species found in biotopes group F: Biotopes dominated by chamephytesand nanophanerophytes. The maps of distribution of 28 invasive species are provided. Most of the species marked dispersed in more than 30 squares.


Author(s):  
A. E. Hotchkiss ◽  
A. T. Hotchkiss ◽  
R. P. Apkarian

Multicellular green algae may be an ancestral form of the vascular plants. These algae exhibit cell wall structure, chlorophyll pigmentation, and physiological processes similar to those of higher plants. The presence of a vascular system which provides water, minerals, and nutrients to remote tissues in higher plants was believed unnecessary for the algae. Among the green algae, the Chaetophorales are complex highly branched forms that might require some means of nutrient transport. The Chaetophorales do possess apical meristematic groups of cells that have growth orientations suggestive of stem and root positions. Branches of Chaetophora incressata were examined by the scanning electron microscope (SEM) for ultrastructural evidence of pro-vascular transport.


2004 ◽  
Vol 20 (4) ◽  
pp. 227-236 ◽  
Author(s):  
Sara Holmberg ◽  
Anders Thelin ◽  
Eva-Lena Stiernström

Summary: The concept of “sense of coherence” (SOC) has been widely recognized since it was first introduced by Antonovsky. The originality and usefulness of the SOC scale and its relation to other psychosocial measures has been the subject of lively debate. The aim of this paper was to test for associations between SOC and work-related psychosocial factors (mainly the Job Demand-Control model), general living conditions, education, and social network factors. Cross-sectional data from a population-based sample of 1782 rural males from nine counties in Sweden were analyzed with a multiple regression technique. The subjects were occupationally active at inclusion and the mean age was 50 years (range 40-60). SOC was assessed with the original 29-item questionnaire. Psychosocial variables and lifestyle factors were assessed using questionnaires and structured interviews. The mean SOC among the subjects was 152.3 (standard deviation, 19.4). A strong negative correlation was found between SOC and job demand, whereas a positive correlation with job control was demonstrated. A positive correlation with general living conditions and with social support was also found. However, there was no correlation to education and occupation. Thus, SOC was shown to be strongly correlated to work-related psychosocial factors and social support, but independent of sociodemographic factors.


2010 ◽  
Vol 72 (08/09) ◽  
Author(s):  
D Penner ◽  
F Alaze ◽  
E Berens ◽  
A Ruhe ◽  
L Wolf ◽  
...  

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