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

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.

Author(s):  
Grzegorz Łazarski

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.


2016 ◽  
Vol 27 (3-4) ◽  
pp. 16-26
Author(s):  
B. A. Baranovski

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.


2012 ◽  
Vol 64 (2) ◽  
pp. 77-92 ◽  
Author(s):  
Aneta Czarna ◽  
Renata Nowińska

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.


2021 ◽  
Vol 9 ◽  
Author(s):  
Alexey P. Seregin

The dataset covers wild tracheophytes (native species, naturalised aliens and casuals) of Vladimir Oblast, Russia. It includes only one occurrence per species per grid square, thereby recently confirmed earlier records are not duplicated. Georeferences are based on the WGS84 grid scheme with 342 squares with areas ranging from 94.7 km2 in the northernmost part to 98.2 km2 on the southern boundary (5′ lat. × 10′ long.). Each occurrence is linked to the corresponding grid square centroid, therefore actual coordinates, habitat details and voucher information are unavailable. In late 2011, the earlier version of the dataset was used for the production of grid maps in the standard "Flora of Vladimir Oblast: checklist and atlas". Additional records, obtained during field excursions of 2012 and 2013, were fully included in the "Flora of Vladimir Oblast: grid data analysis". The stable version of the dataset with 123,054 grid records (as of 1867–2013) was published in GBIF in 2017. Data obtained in the field during 2014–2020, as well as those extracted from recently published sources, were digitised, structured and finally published in GBIF in April 2021. The last update added 7,000 new grid records. Currently, "Flora of Vladimir Oblast, Russia: an updated grid dataset (1867–2020)" contains 130,054 unique occurrences of 1,465 vascular plant taxa (species, hybrids, species aggregates) from Vladimir Oblast and tiny parts of the adjacent areas. The average number of grid records has grown over the seven years from 363 to 380 species. The grid occurrences are largely based on the field studies by the author, performed during 1999–2020 (121,737 records), as well as on data extracted from the relevant literature, unpublished sources, herbarium collections and citizen science projects (8,317 records). The taxonomic backbone of the occurrence grid dataset follows the accompanying checklist dataset to ensure correct cross-linking of the names. As of April 2021, the dataset on the Vladimir Oblast flora represents the fourth largest dataset on vascular plants of Russia published in GBIF.


PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e1559 ◽  
Author(s):  
Pawel Wasowicz

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.


2014 ◽  
Vol 62 (5) ◽  
pp. 379
Author(s):  
Jian Wang

There have been significant increases in the richness of exotic vascular plant species over the past century on Moreton Island, Australia. In total, 120 exotic species (including eight declared plants) in 90 genera and 42 families were collected and collated through field surveys during 2008–2010 and from the Queensland Herbarium collections. One-hundred years ago, no exotic vascular plant species were recorded. Sixteen years later, 14 exotic species in 14 genera from 11 families were collected. A half century later (1973–1975), a detailed vegetation survey recorded 66 exotic species (including five declared plants) belonging to 57 genera from 30 families. This increase coincides with a history of increasingly frequent wild fires, increasing human activities and greater presence of feral animals. The most significant increase occurred after the 1973–1975 surveys, namely an increase of 54 more species, equivalent to an 81.8% increase. These latter species included 17 (31.5%) woody species, 11 (20.4%) graminoid species and 26 (48.1%) forb species. The Sorensen similarity index (ISS) of total exotic species between the surveys of 1973–1975 and 2008–2010 was intermediate (ISS = 0.62). Index for woody species (ISS = 0.60) was also intermediate. Indices for annual graminoids (ISS = 0.53) and perennial forbs (ISS = 0.40) were all relatively low between the studies. Perennial graminoids and annual forbs had high similarity indices, namely, 0.75 and 0.72, respectively. The invasiveness of these plants was also assessed and it was shown that the ‘highly invasive’ and ‘generally invasive’ species were relatively few in number. The findings highlight the rapid increase and change in exotic vascular plant species on Moreton Island and the need for a more robust understanding of the exotic species’ dynamics of the island in order to inform weed management and native vegetation protection services.


Author(s):  
М Ургамал ◽  
О Энхтуяа ◽  
Н Хэрлэнчимэг ◽  
Э Энхжаргал ◽  
Ц Бөхчулуун ◽  
...  

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.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Shourav Dutta ◽  
Trapa Biswas ◽  
Md. Akhter Hossain ◽  
Md. Rayhanur Rahman ◽  
Saddam Hossen ◽  
...  

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.


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