scholarly journals ANALYSIS OF THE ALIEN FLORA OF DNIPROPETROVSK PROVINCE

2016 ◽  
Vol 6 (3) ◽  
pp. 419-429 ◽  
Author(s):  
B. Baranoski ◽  
N. Khromykh ◽  
L. Karmyzova ◽  
I. Ivanko ◽  
Y. Lykholat
Keyword(s):  
Life History ◽  
Alien Species ◽  
Plant Invasion ◽  
Species Number ◽  
Positive Trend ◽  
Species Status ◽  
Anthropogenic Transformation ◽  
Alien Flora ◽  
Invasive Status ◽  
Total Species

<p>Plant invasion in the Northern Steppe Dnieper has a long history complicated by excessive anthropogenic transformation of territory. Alien species status, origin areas, life history, and invasive tendency of alien species in Dnipropetrovsk region were investigated. The presence of 286 alien species of 61 families was registered. Some 7 families had the greatest species diversity (156 alien species that was 55% of total species number); 30 families were represented by 2–9 alien species, and 24 families contained only 1 alien species. So, the current proportion of the alien species was almost 17% in the regional flora. Archaeophytes consist of 40% of the total alien species, while neophytes had more than 60%. The proportion of naturalized species amounted 58% from alien species, whereas the share of casual species was 42%. The greatest abundance of alien species was typical for <em>Brassicaceae</em>, <em>Asterasea</em>, and <em>Poaceae </em>(14, 13, and 9% of the total species number). We proved invasive status of 28 species and positive trend regard alien species ratio for last years. </p>

Preliminary Data on Alien Flora from Oltenia – Romania

2013 ◽  
Vol 40 (1) ◽  
pp. 33-42
Author(s):  
Daniel Răduţoiu ◽  
Ion Stan
Keyword(s):  
Alien Species ◽  
Plant Species ◽  
Residence Time ◽  
Preliminary Data ◽  
Life Form ◽  
Alien Plant Species ◽  
Alien Plant ◽  
Vascular Flora ◽  
Alien Flora ◽  
Invasive Status

Abstract This paper presents the list of alien plant species from Oltenia (Romania). For each taxon we mentioned and analysed the life form, the invasive status and the residence time. The collected and presented data highlight the expansion of the area of some alien species not mentioned previously in this part of the country and also the presence of a new subspontaneous species in the vascular flora of Romania, namely Lagurus ovatus.

scholarly journals The alien flora of Sudan and South Sudan: taxonomic and biogeographical composition

2021 ◽  
Author(s):  
Ali Omer ◽  
Maha Kordofani ◽  
Haytham H. Gibreel ◽  
Petr Pyšek ◽  
Mark van Kleunen
Keyword(s):  
Alien Species ◽  
South Sudan ◽  
Plant Invasions ◽  
Life Forms ◽  
Alien Plants ◽  
African Countries ◽  
Alien Flora ◽  
Result Show ◽  
Perennial Herbs ◽  
Disturbed Habitats

AbstractStudies on plant invasions depend on local and regional checklists of the alien flora. However, global overview studies have shown that some regions, including many African countries, remain understudied in this regard. To contribute to filling this gap, here we present the first checklist of alien plants of Sudan and South Sudan (the Sudans). We analysed the taxonomic and geographical composition of the species on this list. Our result show that of the 113 alien species in Sudans (99 in Sudan and 59 in South Sudan), 92 (81.4%) are naturalized and 21 (18.6%) are just casual aliens. The number of naturalized species represent 2.2% of the total flora of the Sudans (4096). The alien species belong to 44 families and 85 genera, and many of them are native to Southern America and Northern America (85.8%). Annual and perennial herbs are the prevailing life forms in the alien flora of the Sudans (68.1%), and, among the casual species, perennial herbs are underrepresented whereas woody tree species are over-represented. Alien plants of the Sudans are mostly used for medicinal and environmental purposes globally. The naturalized plants predominantly occur in man-made disturbed habitats, such as agricultural and ruderal habitats. This first overview of the alien flora of the Sudans should stimulate further research and recording of the alien flora to better understand the drivers and consequences of alien plants in the Sudans.

scholarly journals Introducing the Global Register of Introduced and Invasive Species: challenges with classification

2018 ◽  
Vol 2 ◽  
pp. e25306
Author(s):  
Shyama Pagad
Keyword(s):  
Invasive Species ◽  
Alien Species ◽  
Alien Invasive Species ◽  
Validation And Verification ◽  
The World ◽  
Invasive Status

The Global Register of Introduced and Invasive Species (GRIIS) presents annotated country checklists of introduced and invasive species. Annotations include higher taxonomy of the species, synonyms, environment/system in which the species occurs, and its biological status in that country. Invasiveness is classified by evidenced impact in that country. Draft country checklists are subjected to a process of validation and verification by networks of country experts. Challenges encountered across the world include confusion with alien/invasive species terminology, classification of the ‘invasive’ status of an alien species and issues with taxonomic synonyms.

scholarly journals First report on phytoplankton communities of Barishal City, Bangladesh

2020 ◽  
pp. 142-147
Author(s):  
Shaswati Chakraborty ◽  
Dipalok Karmaker ◽  
Subroto Kumar Das ◽  
Riyad Hossen
Keyword(s):  
Aquatic Ecosystems ◽  
Species Number ◽  
Aquatic Environments ◽  
Primary Producers ◽  
First Report ◽  
Biodiversity Indices ◽  
Phytoplankton Communities ◽  
Living Organisms ◽  
The City ◽  
Total Species

Phytoplanktons, also called microalgae, are microscopic photosynthetic living organisms that generally found in aquatic environments. Although they are considered as the most important primary producers and bioindicators of aquatic ecosystems, there was no previous report found for Barishal City about these tiny organisms. Consequently, the present study selected 10 freshwater reservoirs from the city to investigate phytoplankton communities and listed 110 taxa under 4 phyla, 7 classes, 18 orders, 24 families and 49 genera. The distribution of Chlorophytes was abundant relatively in terms of species number (45 taxa) followed by Euglenophytes, Chlorophytes and Cyanophytes in this area. Only Euglenaceae possessed one-third of the total species of this report. Among all stations, the highest number of taxa was recorded from station 2 and according to nine biodiversity indices, the station 2 and 9 showed comparatively good results. All of the recorded taxa were previously mentioned by different authors from Bangladesh.

Detection of biodiversity local centers and gradients of change of Dolichopodidae (Diptera) in East Asia

2021 ◽  
Vol 28 (1) ◽  
Author(s):  
IGOR GRICHANOV ◽  
MARIYA CHURSINA ◽  
MENGQING WANG
Keyword(s):  
Cluster Analysis ◽  
East Asia ◽  
Mathematical Analysis ◽  
East Asian ◽  
Species Number ◽  
Russian Regions ◽  
Biodiversity Indices ◽  
Group A ◽  
Group B ◽  
Total Species

The dolichopodid fauna of continental Chinese and Russian regions belonging to the East Palaearctic have been selected for a comparative diversity investigation. We gathered information about 654 species of long-legged flies in the studied areas. Regarding the total species number, Primorsky Kray and Republic of Sakha in Russia, Henan and Shaanxi in China, as well as Mongolia are the top five regions, each with more than 100 species known. Cluster analysis of the dolichopodid genera composition allows us to divide all studied territories into two groups: Group A is mixed, since it includes both the Russian regions and the Chinese provinces; Group B includes only Russian regions. Generally, the mathematical analysis of the dolichopodid species supports the uniqueness of Primorsky Kray as the biodiversity center in East Asian Palaearctic. A decrease in the number of known species and biodiversity indices is observed northward, southward and westward of Primorsky Kray. One more possible center is located closely to the Oriental provinces of China (Henan and Shaanxi provinces).

scholarly journals Cladocera of the Lençóis Maranhenses (NE - Brazil): faunal composition and a reappraisal of Sars' Method

2010 ◽  
Vol 70 (3 suppl) ◽  
pp. 755-779 ◽  
Author(s):  
K. Van Damme ◽  
HJ. Dumont
Keyword(s):  
Invasive Species ◽  
Species Composition ◽  
Rare Species ◽  
Simple Technique ◽  
Species Number ◽  
Acid System ◽  
Faunal Composition ◽  
Hit And Run ◽  
Total Species

We studied the Cladocera of a group of ephemeral interdunal pools in the Lençóis Maranhenses, Maranhão State (NE - Brazil) and recorded 34 species. The fauna was overwhelmingly neotropical, with no evidence of invasive species. Species composition differed in Lagoa da Colher, an acid system. We provide notes on behaviour, morphology and taxonomy of some lesser-known anomopods, with emphasis on the Chydoridae. We figure male Oxyurella longicaudis, Chydorus eurynotus, Disparalona leptorhyncha, Alonella dadayi and A. clathratula. We provide notes on the "Sars' Method", hatching of freshwater crustaceans from dry mud, a simple technique that complements the information of hit-and-run surveys. About half of the total species number (44%) was revived through this method; 18% of species were additional to field-collected samples. The Sars' method also yielded abundant specimens of rare species, useful for identification and studies on behaviour.

Evidence for a shift in life-history strategy during the secondary phase of a plant invasion

2008 ◽  
Vol 11 (3) ◽  
pp. 625-634 ◽  
Author(s):  
Kirk A. Moloney ◽  
Florian Knaus ◽  
Hansjörg Dietz
Keyword(s):  
Life History ◽  
Plant Invasion ◽  
Life History Strategy ◽  
Secondary Phase

Review of the genus Argyresthia Hübner, [1825] (Lepidoptera: Yponomeutoidea: Argyresthiidae) from China, with descriptions of forty-three new species

Zootaxa ◽  
2017 ◽  
Vol 4292 (1) ◽  
pp. 1 ◽  
Author(s):  
TENGTENG LIU ◽  
SHUXIA WANG ◽  
HOUHUN LI
Keyword(s):  
New Species ◽  
Dna Barcode ◽  
Female Genitalia ◽  
Biological Information ◽  
Species Number ◽  
Male And Female ◽  
Chlorella Sp ◽  
Three New Species ◽  
First Time ◽  
Total Species

The Chinese fauna of Argyresthia Hübner, [1825] included by 14 described species prior to this study. In the present paper we describe 43 new species and record seven species new to China. We also recognized six known Chinese species based on the available specimens; eight species previously reported for the fauna, but without available specimens for examination, are systematically placed in their relevant positions. The total species number of Argyresthia in China is brought to 64. The new species include: A. (Blastotere) aureola, sp. nov., A. (B.) sporadolepis, sp. nov., A. (B.) cineretra, sp. nov., A. (B.) affinicineretra, sp. nov., A. (B.) albaureola, sp. nov., A. (B.) densa, sp. nov., A. (B.) punctireticulata, sp. nov., A. (B.) dolichocoremata, sp. nov., A. (B.) longipenella, sp. nov., A. (Argyresthia) biloba, sp. nov., A. (A.) minutilepidota, sp. nov., A. (A.) flavifusca, sp. nov., A. (A.) trigonophylla, sp. nov., A. (A.) chiotorna, sp. nov., A. (A.) hirsuta, sp. nov., A. (A.) papillata, sp. nov., A. (A.) acuminata, sp. nov., A. (A.) curvativa, sp. nov., A. (A.) atomata, sp. nov., A. (A.) orthocera, sp. nov., A. (A.) cardiopetala, sp. nov., A. (A.) mala, sp. nov., A. (A.) longa, sp. nov., A. (A.) decurtata, sp. nov., A. (A.) minutisocia, sp. nov., A. (A.) scalprata, sp. nov., A. (A.) grammosacca, sp. nov., A. (A.) campylotropa, sp. nov., A. (A.) punctuata, sp. nov., A. (A.) chlorella, sp. nov., A. (A.) triangulata, sp. nov., A. (A.) subzonata, sp. nov., A. (A.) basistriata, sp. nov., A. (A.) longalbella, sp. nov., A. (A.) umbrina, sp. nov., A. (A.) umbrinistrigata, sp. nov., A. (A.) surrecta, sp. nov., A. (A.) lanosa, sp. nov., A. (A.) lata, sp. nov., A. (A.) cuprea, sp. nov., A. (A.) aurilata, sp. nov., A. (A.) convexa, sp. nov., and A. (A.) ellipsoidea, sp. nov.        The newly record species include: A. (A.) pygmaeella ([Denis & Schiffermüller], 1775), A. (A.) retinella Zeller, 1839, A. (A.) angusta Moriuti, 1969, A. (A.) alpha Friese & Moriuti, 1968, A. (A.) beta Friese & Moriuti, 1968, A. (A.) kaoyaiensis Moriuti, 1982, and A. (A.) dislocata Meyrick, 1914. The male of A. (A.) trochaula Meyrick, 1938, and the male and female genitalia of A. (A.) aphoristis Meyrick, 1938 and A. (A.) dislocata are described for the first time. The misidentified species A. (A.) assimilis Moriuti, 1977 in China is described as A. (A.) mala, sp. nov. Argyresthia cryptomeriae Yang, nomen non rite publicatum, is validated as Argyresthia anthocephala Meyrick, 1936. Keys to the subgenera and to the Chinese species with available specimens are provided.        Photos of adults and male and female genitalia are provided for all the examined species except two from Taiwan. Field photographs and biological information are provided where available. Five DNA barcode sequences of the two new species, A. (A.) surrecta, sp. nov. and A. (A.) lanosa, sp. nov., are provided for association of the sexes. 

scholarly journals Improving Checklists of Alien Plants with Digitised Herbarium Collections: The Example of D.R. Congo (Africa)

2021 ◽  
Author(s):  
Farzaneh Bordbar ◽  
Pierre Meerts
Keyword(s):  
Alien Species ◽  
Plant Species ◽  
Field Work ◽  
Sampling Effort ◽  
Alien Plant Species ◽  
Alien Plant ◽  
Widespread Species ◽  
Native Flora ◽  
Alien Flora ◽  
Herbarium Collections

Abstract The Democratic Republic of the Congo (D.R. Congo) represents a striking gap of knowledge on alien plant species. In this paper, we use digitised herbarium collections to assemble a checklist of alien plant species in D.R. Congo and to examine patterns in the alien flora. The new checklist comprises 426 alien species i.e., 182 (42.5%) casuals, 244 (57.5%) naturalised of which 80 (19% of aliens) are invasive. Discrepancies with previous databases are discussed. For many species in previous databases, we failed to find evidence for occurrence outside cultivation. A total of 158 taxa were not included in previous lists, 44 of which are new to D.R. Congo. Considering the size of the country and its rich native flora, the alien flora of D.R. Congo does not appear to be species rich. The alien flora is particularly rich in Fabaceae (15%) and in annual species (36%). America is by far the most important source continent (65%) and the proportion of annuals of American origin is particularly large among the most widespread species. Invasive success is discussed in terms of residence time. The very low number of new species records after 1960 is most likely accounted for by decreasing sampling effort. The results illustrate how herbarium collections can be used to critically revise existing checklists of alien species in tropical Africa. Field work is urgently needed to improve coverage of recent introductions and to monitor the status of alien species, especially in protected areas and around botanic gardens.

scholarly journals Origins of Alien Species and Plant Invasion in India as Tapped from Kurma Purana

2021 ◽  
Vol 4 (3) ◽  
pp. 137-142
Author(s):  
Dinkarrao Amrutrao Patil
Keyword(s):  
Alien Species ◽  
Plant Species ◽  
Plant Invasion ◽  
Indian Territory ◽  
Alien Plant Species ◽  
Alien Plant ◽  
Plant Names ◽  
Literary Heritage

Ancient Sanskrit Puranas are literary heritage of India. They are studied from different perspectives but appeared largely neglected from the viewpoint of plant invasion in Indian territory. The present attempt dealt with the alien plant species as encoded in Sanskrit plant names in various verses of Kurma Purana. As many as 24 alien plant species belong to 23 genera of 16 families of angiosperms. They are analysed carefully floristically, habital categories and status regarding cultivation or naturalization. They are also studied for their nativity consulting relevant taxonomic literature. The data indirectly also indicated about utilities and awareness about classification of plants based on habits. Such investigations are warranted for better understanding of the development of natural wealth in past.

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