scholarly journals Floral diversity in the central part of Chattogram city, Bangladesh

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Shourav Dutta ◽  
Trapa Biswas ◽  
Md. Akhter Hossain ◽  
Md. Rayhanur Rahman ◽  
Saddam Hossen ◽  
...  
Keyword(s):  
Plant Species ◽  
Native Species ◽  
Vascular Plant ◽  
Well Being ◽  
Green Spaces ◽  
Floral Resources ◽  
Survey Method ◽  
Infrastructure Development ◽  
Content Type ◽  
Vascular Plant Species

Purpose This study/paper aims to evaluate the floral richness of the central part of Chattogram city, Bangladesh. Chattogram is recognized as the largest port city and the commercial capital of Bangladesh, which confronts faster urbanization and swift infrastructure development. Green spaces in and around Chattogram city are shrinking sharply, which resulted in rapid loss of floral and faunal resources in this area. The present study was carried out from February 2018 to January 2019 to enumerate the vascular plant species of the Sulakbahar ward located in the central part of Chattogram City, Bangladesh. Design/methodology/approach The study area was categorized into 10 habitats to assess the variation of floral composition. The extensive whole area survey method was applied to record the flora from all sorts of plant habitats of the research area. Findings The study enumerated 418 vascular plant species under 315 genera and 120 families including natural, planted and cultivated from the study area. The habit form of the recorded plant composition indicated that herbs (35%) constitute the major plant category followed by trees (34%), shrubs (17%), climbers (12%), ferns (1%) and orchids (1%). The study also indicated that exotic species (50.3%) became dominant than native species (49.7%) in Chattogram city because of their scenic beauty, easy propagation and ornamental value to the city planners and inhabitants. Originality/value It appeared that floral resources of the Chattogram city area are in great threat due to aggressive and unplanned infrastructure development for housing, offices and institutions by replacing the green spaces. The study recommended that urgent protection measures should be taken to conserve and protect the existing floral resources for the well-being of the urban people.

Chronione, rzadkie i zagrożone gatunki roślin naczyniowych we florze Wzgórz Chęcińskich i Pasma Dymińskiego (Wyżyna Małopolska) – cz. I. Gatunki muraw oraz ciepłolubnych okrajków

2019 ◽  
pp. 49-73
Author(s):  
Grzegorz Łazarski
Keyword(s):  
Plant Species ◽  
Native Species ◽  
Vascular Plant ◽  
Vascular Plant Species ◽  
Rare And Endangered ◽  
S Poland

The paper is the first part of a series of articles on protected, rare and endangered vascular plant species recorded in the Chęciny Hills and Dyminy Range (Małopolska Upland, S Poland), including 85 native species which in the study area occur mainly in xerothermic and psammophilous grassland or thermophilous fringe vegetation. Among them there are 24 species protected in Poland, 42 species endangered in Poland, and 60 endangered regionally. The paper is based on phytogeographical studies done during the vegetative seasons of 2010–2015 and supplemented in 2016–2019.

Non-native species in the vascular flora of the national park «Samarsky Bir»

2016 ◽  
Vol 27 (3-4) ◽  
pp. 16-26
Author(s):  
B. A. Baranovski
Keyword(s):  
Plant Species ◽  
Native Species ◽  
National Park ◽  
Vascular Plant ◽  
National Level ◽  
Anthropogenic Transformation ◽  
Vascular Flora ◽  
Native Flora ◽  
Adventitious Species ◽  
Vascular Plant Species

Results of non-native flora surveys on Samara Dniprovska River valley within the designed National Park «Samarsky Bir» were analyzed in the paper. Scientific justification on first stage creation of the national-level National Park «Samarsky Bir» was prepared in 2012. Its area included the main park area with floodplain, arena and gully landscapes of the rivers Samara and Oril interstream. List of vascular plant species on floodplain, arena and gully habitats of Prisamar'ya counted 887 species. They are classified as 5 divisions, 6 classes, 108 families, 429 genera. This article presents a list of non-native flora fraction with bioecological characteristic of the plant species. The surveys were conducted by conventional methods on vascular flora studying. Analysis of the main plant ecomorphs was carried out by A. L. Belgard ecomorph system (1950). Invasion of plant species in the steppe zone of Ukraine has a long history complicated by significant anthropogenic transformation of the territory. We investigated the status of non-native plants, their ecomorphs, and tendency to invasiveness on the territory of National Park «Samarsky Bir» designed. Presence of 195 adventitious vascular plant species belonging to 48 families was determined. Of them, 7 families with the greatest abundance of non-native species contained 113 taxa (58 % of the total); 20 families were represented with 2–7 advents, and 20 families contained only 1 non-native species. Thus, today the share of non-native species in the vascular flora of the region accounted for nearly 22 %. Most of adventitious species are mesoxerophytes and xeromesophytes. In a cenomorphic relationship, vegetation being ruderal on the territory of Ukraine is dominated in composition of non-native flora. Within the total number of adventitious species, archaeophytes amount up 44 %, whereas neophytes come up to 56 %. The greatest abundance of adventitious species has been found in Brassicaceae, Asterasea and Poaceae families (15 %, 12 %, and 11 % of the total, respectively). 119 non-native vascular plant species were found in the steppe cenoses, 79 species in the gully and watershed forests, 90 species in floodplain forests, and 52 species on the territory of the sandy terrace. Among all the non-native species, 28 species have been identified as invasive, and there was a trend to increased invasiveness of some species in recent years. Among heterogenous species 12 of them were identified as invasive, and there was a tendency to increase theinvasiveness of some species in recent years. The analysis provided on non-native flora in the National Park evidences significant anthropogenic transformation of the territory; that requires establishment of appropriate regime on protection of this important ecological object.

scholarly journals Vascular flora in cemeteries of the Roztocze region and surrounding areas (south-east Poland)

2012 ◽  
Vol 64 (2) ◽  
pp. 77-92 ◽  
Author(s):  
Aneta Czarna ◽  
Renata Nowińska
Keyword(s):  
Plant Species ◽  
Native Species ◽  
Vascular Plant ◽  
Vascular Flora ◽  
Vascular Plant Species ◽  
Systematic List ◽  
Surrounding Areas

The paper presents a systematic list of vascular plant species recorded at 78 cemeteries in the Roztocze region and surrounding areas. 543 species belonging to 75 families were recorded. Of these, 99 foreign and 43 native species were cultivated. 41 species introduced by humans to cemeteries can be regarded as the so-called established cemetery species. These species, once planted on graves, continue to grow or even spread after people stopped cultivating them.

scholarly journals Non-native species in the vascular flora of highlands and mountains of Iceland

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e1559 ◽  
Author(s):  
Pawel Wasowicz
Keyword(s):  
Alien Species ◽  
Plant Species ◽  
Hot Spots ◽  
Native Species ◽  
Vascular Plant ◽  
Temporal Trends ◽  
Plant Colonization ◽  
Native Plant ◽  
Alien Plant ◽  
Vascular Plant Species

The highlands and mountains of Iceland are one of the largest remaining wilderness areas in Europe. This study aimed to provide comprehensive and up-to-date data on non-native plant species in these areas and to answer the following questions: (1) How many non-native vascular plant species inhabit highland and mountainous environments in Iceland? (2) Do temporal trends in the immigration of alien species to Iceland differ between highland and lowland areas? (3) Does the incidence of alien species in the disturbed and undisturbed areas within Icelandic highlands differ? (4) Does the spread of non-native species in Iceland proceed from lowlands to highlands? and (5) Can we detect hot-spots in the distribution of non-native taxa within the highlands? Overall, 16 non-native vascular plant species were detected, including 11 casuals and 5 naturalized taxa (1 invasive). Results showed that temporal trends in alien species immigration to highland and lowland areas are similar, but it is clear that the process of colonization of highland areas is still in its initial phase. Non-native plants tended to occur close to man-made infrastructure and buildings including huts, shelters, roads etc. Analysis of spatio-temporal patterns showed that the spread within highland areas is a second step in non-native plant colonization in Iceland. Several statically significant hot spots of alien plant occurrences were identified using the Getis-Ord Gi* statistic and these were linked to human disturbance. This research suggests that human-mediated dispersal is the main driving force increasing the risk of invasion in Iceland’s highlands and mountain areas.

scholarly journals Vascular plants occurrences in Dokdo Islands, Korea, based on herbarium collections and legacy botanical literature

2021 ◽  
Vol 9 ◽  
Author(s):  
Chin-Sung Chang ◽  
Shin Young Kwon ◽  
Hyun Tak Shin ◽  
Su-Young Jung ◽  
Hui Kim
Keyword(s):  
Plant Species ◽  
Native Species ◽  
Vascular Plant ◽  
Field Studies ◽  
Invasive Grass ◽  
The Past ◽  
Vascular Plant Species ◽  
Volcanic Islands ◽  
Herbarium Collections ◽  
Made In

The vascular flora of the Dokdo Islands has been reported, based on primary collections made in 2012 and 2013 and legacy botanical literature. The Dokdo Islands are the remotest islands of Korea, located in the East Sea approximately 87 km from Ulleungdo Islands. They comprise two main volcanic islands, Dongdo (east islands) and Seodo (west islands) and minor islets surrounding the two main islands. This research was conducted to document vascular plant species inhabiting Korea's most inaccessible islands. We present a georeferenced dataset of vascular plant species collected during field studies on the Dokdo Islands over the past seven decades. In the present inventory of the flora of Dokdo, there are listed 108 species belonging to 78 genera and 39 families, including 93 native species and 15 newly human-induced naturalised species for these Islands' flora. The Poaceae and Asteraceae families are the most diverse, with 22 and 15 taxa, respectively. Some of the previously-listed taxa were not found on Dokdo probably because they are rare and the limited time did not allow collectors to find rare species. The spread of introduced species, especially the invasive grass Bromus catharticus Vahl., affects several native species of Dokdo flora.

scholarly journals ӨНӨӨГИЙН МОНГОЛ ОРНЫ УРГАМЛЫН АЙМГИЙН ЗҮЙЛИЙН БҮРДЭЛ, ОЛОН ЯНЗ БАЙДАЛ

2016 ◽  
pp. 86-94
Author(s):  
М Ургамал ◽  
О Энхтуяа ◽  
Н Хэрлэнчимэг ◽  
Э Энхжаргал ◽  
Ц Бөхчулуун ◽  
...  
Keyword(s):  
Plant Species ◽  
Plant Diversity ◽  
Aquatic Plants ◽  
Native Species ◽  
Vascular Plant ◽  
Red List ◽  
Alien Plants ◽  
Mushroom Species ◽  
Vascular Plant Species ◽  
Infraspecific Taxa

According to an overview of plant diversity in Mongolia, has 7,315 native species and infraspecific taxa of plants belonging to 1,522 genera, 392 families, 116 orders 39 classes and 19 phyla. Among them, there are 574 mushroom species in 156 genera and 56 families, 2003 algae species in 268 genera and 87 families, 1,031 lichens species in 207 genera and 63 families, 580 bryophytes species in 208 genera and 74 families, and 3127 vascular plant species in 683 genera and 112 families. Currently according to the data, Mongolian vascular plant has 153 species (4.89%) of endemic palnts, 458 species (14.64%) of subendemic, 133 species (4.25%) of very rare, 356 species (11.38%) of rare, 35 species (1.11%) of alien plants, 438 species (14.0%) of antropophilus plants, 143 species (4.57%) of aquatic plants, 70 species (2.23%) of relict plants, 47 species (1.50%) of wilding crops, 135 species (4.31%) in Red Book, 148 species (4.73%) of Red List, and 8 species (0.25%) of in II annex of CITES.

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