scholarly journals The current state of the introduction coenopopulation of Gymnospermium odessanum on the botanical-geographical plot “Steppes of Ukraine” at the M. M. Gryshko National Botanical Garden of the NAS of Ukraine

2022 ◽  
Vol 93-94 ◽  
pp. 1-15
Author(s):  
Victoria Gritsenko
Keyword(s):  
Plant Species ◽  
Botanical Garden ◽  
Average Density ◽  
Ex Situ ◽  
Forest Steppe ◽  
Endemic Plant ◽  
National Academy Of Sciences ◽  
Natural Habitats ◽  
Northern Border ◽  
Endemic Plant Species

Gymnospermium odessanum is a rare relict endemic plant species. The research was carried out during G. odessanum flowering in 2019–2021 at the botanical-geographical plot “Steppes of Ukraine” of the M.M. Gryshko National Botanical Garden, National Academy of Sciences of Ukraine (NBG). Ecological and coenotic conditions of introduction at the NBG differ from natural habitats of the species and are not optimal for its vegetation. However, this species demonstrated ecological-coenotic plasticity and, over the decades, has formed a stable homeostatic introduction coenopopulation here. As of 2021, the area of introduction coenopopulation of G. odessanum at the NBG was 2,075 m2. It comprises 412 individuals of this species (including 40 seedlings, 241 juvenile, 45 immature, 40 virginal, 45 generative, and 1 sub-senile plants). Coenopopulation fragments with a high density of G. odessanum individuals are rare here, so the average density is low – only 0.2 individuals per 1 m2. In 2021, in the spectrum of age states, the total percentage of pregenerative individuals was very high and reached 88.8 %; the share of generative individuals was 10.9 %.In general, the age structure of the introduction coenopopulation of G. odessanum is characterized by long-term (2010–2021) stability. The spatial distribution of individuals in the introduction coenopopulation is of two kinds – random and in groups. This is due to combined myrmecochoric and barochoric propagation. Also due to myrmecochory, this coenopopulation tends to spread the area. Compared to natural coenopopulations, the introduction coenopopulation of G. odessanum at the NBG is characterized by a larger area, a much significant number, and, at the same time, a low average density of individuals. However, like in most of natural populations, its age spectrum is left-sided.The conducted research testifies the successful formation of the introduction coenopopulation of G. odessanum in the meadow-steppe cultural phytocoenosis of the NBG. This introduction coenopopulation is an example of a successful multi-year scientific experiment and effective ex situ protection and preservation of G. odessanum on the northern border of the Right Bank Forest-Steppe of Ukraine, far beyond the natural range of this endemic plant species.

scholarly journals Phytorarity of Chernihiv region in M. M. Gryshko National Botanical Garden of the NAS of Ukraine

2021 ◽  
Vol 4 ◽  
pp. 37-46
Author(s):  
Alla Gnatiuk ◽  
Rak Oleksandr ◽  
Viktoriia Gritsenko ◽  
Mykola Gaponenko
Keyword(s):  
Plant Species ◽  
Global Climate ◽  
Botanical Garden ◽  
Rare Plants ◽  
Ex Situ ◽  
Pteridium Aquilinum ◽  
Rare Plant ◽  
Anthropogenic Pressure ◽  
National Academy Of Sciences ◽  
Rare Plant Species

Increasing anthropogenic pressure, global climate change, and the lack of large introduction centers in the Chernihiv region makes it important to preserve rare species of flora ex situ outside this administrative region. The article presents the results of the study of taxonomic composition and evaluation of the success of the introduction of rare plant species of Chernihiv region in the M. M. Gryshko National Botanical Garden of National Academy of Sciences of Ukraine. The study of rare plant species and the development of methods for their effective reproduction was initiated in the NBG in 1970 in a separate section “Rare plants of the flora of Ukraine.” It is established that the collection grows and protects 57 phythorarites of Chernihiv region, of which 29 species are listed in the Red Book of Ukraine (III edition), and 28 species – in the “List of regionally rare plant species of Chernihiv region”. Most plants successfully recover ex situ with moderate care or without additional human intervention. The biomorphological spectrum of introduced plants is dominated by cryptophytes (50.88 %) and hemicryptophytes (42.11 %), the shares of phanerophytes, hamephytes and therophytes are insignificant. 17 species of phythorarites formed stable homeostatic populations. Of these: 5 species are listed in the Red Book of Ukraine (Allium ursinum, Crocus reticulatus, Epipactis helleborine, Galanthus nivalis, Pulsatilla pratensis) and 12 species – in the “List of regionally rare plant species of Chernihiv region” (Aster amellus, Corydalis intermedia, C. marschal, Daphne mesereum, Equisetum hyemale, Iris hungarica, Phlomis tuberosa, Primula veris, Pteridium aquilinum, Scilla bifolia, S. sibirica, Vinca minor). Thus, the cultivation of almost a third of the phythorarites of Chernihiv region in the M. M. Gryshko National Botanical Garden testifies to the effectiveness of their preservation ex situ.

scholarly journals Specialized edaphic niches of threatened copper endemic plant species in the D.R. Congo: implications for ex situ conservation

2016 ◽  
Vol 413 (1-2) ◽  
pp. 261-273 ◽  
Author(s):  
Sylvain Boisson ◽  
Michel-Pierre Faucon ◽  
Soizig Le Stradic ◽  
Bastien Lange ◽  
Nathalie Verbruggen ◽  
...  
Keyword(s):  
Plant Species ◽  
Ex Situ Conservation ◽  
Ex Situ ◽  
Endemic Plant ◽  
Endemic Plant Species

scholarly journals Review on Plant Diversity Status and Conservation Practices in Nepal

Patan Pragya ◽  
2020 ◽  
Vol 6 (1) ◽  
pp. 75-93
Author(s):  
Sudha Joshi Shrestha
Keyword(s):  
Plant Species ◽  
Plant Diversity ◽  
Global Climate ◽  
In Situ Conservation ◽  
Ex Situ ◽  
Conservation Practices ◽  
Infrastructure Development ◽  
Endemic Plant ◽  
Natural Habitats

Plant diversity plays the crucial role in maintaining the ecosystem and sustaining the life in the globe. Nepal lying in central Himalaya and at the crossroad of two phytogeographicregionsisbestowed with rich biodiversity. Though the country occupies about 0.1% of global land area but comprises 3.2% of world’s known flora. Biodiversity is eroding because of many factors such as habitat loss, deforestation, infrastructure development, over exploitation for human use, invasion by alien species, global climate change and natural calamities, thus threatening the existence in globe. Nepal has adopted both in-situ and ex-situ conservation practices to conserve the biodiversity and maintain the ecosystem in nature. A network of 20 protected areas is established and national forests under different categories are under protection to conserve the biodiversity in their natural habitats. Scientific forest management was initiated to enhance the forest productivity and conserve biodiversity. Botanical gardens in different localities are established for the conservation of rare, endangered, threatened and endemic plant species. Moreover, Government of Nepal has enlisted some plant species in Government protection list and CITES appendices to prevent them from degradation. Thirty three plant species with medicinal values are prioritized for research and economic development of the nation. Nepal’s approach in conservation of plant diversity is commendable and is at the forefront in in-situ conservation practice. However, a considerable number of plants species that are rare, threatened, endemic are also found outside the protected are as and need to be conserved.

scholarly journals Formation of the introduced coenopopulation of Crocus reticulatus on the botanical-geographical plot “Steppes of Ukraine” at the M. M. Gryshko National Botanical Garden of the NAS of Ukraine

2020 ◽  
Vol 87-88 ◽  
pp. 65-75
Author(s):  
Victoria Gritsenko
Keyword(s):  
Natural Populations ◽  
Botanical Garden ◽  
Average Density ◽  
Logistic Growth ◽  
National Academy Of Sciences ◽  
Natural Habitats ◽  
Normal Ranges ◽  
Covered Area ◽  
Academy Of Sciences ◽  
Number Of Individuals

The research was carried out during Crocus reticulatus flowering time in 2002–2020 at the botanical-geographical plot “Steppes of Ukraine” of the M.M. Gryshko National Botanical Garden, National Academy of Sciences of Ukraine (NBG). Crocus reticulatus was introduced to the NBG from the natural habitats in 2002–2003. Ten generative individuals were planted in an area of 2 m2. The area of coenopopulation and the number of individuals increased gradually until 2018. In 2019–2020, there was a rapid increase in the covered area and number of individuals. However, the average density of individuals decreased. The percentage of pregenerative plants (juvenile, immature, and virginal) increased, and the percentage of generative individuals decreased. As of 2020, the area of introduced coenopopulation of C. reticulatus at the NBG reached 195 m2. It consists of 175 individuals (38 juvenile, 21 immature, 23 virginal, and 93 generative). The average density is 0.9 individuals per 1 m2. The spatial distribution of individuals is characterized as random and in groups. This is due to the predominance of the myrmecochoric and barochoric propagation. Indicators of the area, number, and average density of the introduced coenopopulation are within the normal ranges of the natural populations; however, they are smaller than those in maternal populations. The number of individuals of different age states and the number of individuals with one and two or three flowers in the introduced coenopopulation is close to such parameters of the natural population from Kyiv Plateau. Flowers of different colors were observed both in the introduced coenopopulation and in natural populations of C. reticulatus. As of 2020, the introduced coenopopulation of C. reticulatus is in the phase of logistic growth.

scholarly journals California’s endemic Cornus sessilis in Ukraine

2021 ◽  
Vol 12 (1) ◽  
pp. 42-49
Author(s):  
S. V. Klymenko ◽  
A. P. Ilyinska ◽  
A. V. Kustovska ◽  
N. V. Melnychenko
Keyword(s):  
Climate Change ◽  
Endemic Species ◽  
Global Climate ◽  
Leaf Shape ◽  
Botanical Garden ◽  
Ex Situ ◽  
Seasonal Development ◽  
National Academy Of Sciences ◽  
Natural Habitats ◽  
Rare Endemic

Global climate change and increased land use lead to the loss of biodiversity at all levels of the organization of living organisms – ecosystems, species, landscape population, genetic, molecular biological levels, etc. The reaction of plants to anthropogenic impact, according to experts, may be even stronger than postglacial changes. A shift in the thermal isotherm will cause the plants to either move and adapt, or disappear. Endemic species that make up “biodiversity hotspots” require special attention. Cornus sessilis Torr. ex Durand, the object of our research, is part of one of these points – the California Floristic Province. Researchers are now focusing their efforts on developing a climate change – related biodiversity management strategy. In the case of the threat of extinction of the species in nature, there is a important method of preserving it in culture (ex situ). M. M. Gryshko National Botanical Garden at the National Academy of Sciences of Ukraine (the NBG) pays great attention to the introduction of rare endemic species from the different geographical and floristic regions of the world. The gene pool of Cornus L. s. l. in the NBG consists of more than 30 species and 40 cultivars including the insufficiently researched and little-known Californian endemic C. sessilis. In Europe, it has been grown since 2017 only in Chateau Perouse Botanic Gardens (Saint-Gilles, France) and in Ukraine only the NBG has it. In this article we evaluate the life cycle of the development C. sessilis under conditions of introduction different from the conditions of its natural area. To do this, we used the classic traditional methods of the research on the process of introduction, in particular, botanical plant identification, visual observation, phenology, comparative morphology and biometrics. Morphological descriptors (life form, colour and texture of bark, leaf shape, pubescence character, structure of generative and vegetative buds, inflorescences, flowers, fruits and endocarp) of C. sessilis genotypes introduced to the NBG are identical to those of plants from their natural habitats. The weight of fruits and endocarps were determined by us for the first time. The results of biometric analysis of the size of leaves and fruits showed that the plants of C. sessilis grown in the NBG had the larger leaf blades, but the smaller fruits as compared to those in the wild. In the NBG the plants underwent a full cycle of seasonal development (from the deployment of buds to the leaf fall, inclusive) for 229 days. In general, the phenological strategy of C. sessilis genotypes introduced in the NBG corresponds to that of other species of Cornus s. str., including C. mas L. Our results indicate that C. sessilis, California’s rare endemic species new to Ukraine, has adapted to the new conditions – the plants bear fruits and produce seeds. The experience of successful introduction makes it possible to cultivate a new species to expand the diversity of food, medicinal and reclamation plants of the family Cornaceae as well as the use in synthetic breeding to obtain new cultivars with valuable biological and economic properties. Cornus sessilis compatibility test as rootstocks for other species is important for clarifying the theoretical issues of family ties of species Cornaceae and practical – for widespread reproduction of the required cultivars C. mas breeding in the NBG on a potentially compatible rootstock C. sessilis.

scholarly journals Endemic Plant Species Conservation: Biotechnological Approaches

Plants ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 345 ◽  
Author(s):  
Natacha Coelho ◽  
Sandra Gonçalves ◽  
Anabela Romano
Keyword(s):  
Genetic Resources ◽  
Plant Species ◽  
Ex Situ Conservation ◽  
Species Conservation ◽  
Conservation Strategy ◽  
Ex Situ ◽  
Endemic Plant ◽  
Conservation Measures ◽  
Endemic Plant Species

Endemic plant species are usually more vulnerable to anthropogenic threats and natural changes and, therefore, hold a higher extinction risk. The preservation of these species is a major concern on a worldwide context and in situ protection alone will not guarantee their conservation. Ex situ conservation measures must be undertaken to support the conservation of these species, and seed banking is the more efficient and cost-effective method. However, when seed banking is not an option, alternative approaches should be considered. Biotechnological tools provide new and complementary options for plant conservation including short-, medium-, and long-term strategies, and their application for plant species conservation has increased considerably in the last years. This review provides information about the status of the use biotechnology-based techniques for the conservation of endemic plant species. Particular attention is given to cryopreservation, since is the only long-term ex situ conservation strategy that can complement and support the other conservation measures. The cryopreservation of plant genetic resources is, however, more focused on crop or economically important species and few studies are available for endemic plant species. The plant material used, the cryopreservation methods employed, and the assessment of cryogenic effects are reviewed. The reasons to explain the difficulties in cryopreserving these species are discussed and new strategies are proposed to facilitate and increase the interest on this matter. We expect that further studies on the conservation of endemic plant species will increase in a near future, thus contributing to maintain these valuable genetic resources.

scholarly journals Autochthonous vitamin-bearing plants of the Kiev Plateau

2021 ◽  
pp. 45-62
Author(s):  
Victoria Gritsenko
Keyword(s):  
Linear System ◽  
Research Methods ◽  
Plant Species ◽  
Classification Scheme ◽  
Botanical Garden ◽  
Ex Situ ◽  
Herbaceous Plants ◽  
National Academy Of Sciences ◽  
Annotated List ◽  
Academy Of Sciences

Aim. To compile and analyze an annotated list of autochthonous vitamin-bearing plant species of the Kiev Plateau, which according to ethnobotanical traditions are often used by the population of this region. Methods. The research was carried out in 2002–2021 in natural phytocoenoses of the Kyiv Plateau and artificial phytocoenoses of  M. M. Gryshko National Botanical Garden, National Academy of Sciences of Ukraine (NBG). Research methods are field and cameral. Dozens of locals were surveyed to find out which autochthonous vitamin-bearing plant species are most commonly used by the region's population. Latin names of plants are given according to the generally accepted taxonomy (Mosyakin & Fedoronchuk, 1999). A linear system (Golubev, 1972) was used for biomorphological analysis. The classification scheme of florocoenotypes (Kamelin, 1973) was used for ecologo-coenotic analysis. Results. An annotated list of autochthonous vitamin-bearing plant species of the Kyiv Plateau, which is frequently used by the population of the region, is given. The spectrum of families, biomorphological and ecologo-coenotic spectra, and priority of use of certain parts of plants are analyzed. Conclusions. The annotated list describes 43 species of plants belonging to 36 genera and 21 families. Rosaceae (26%) has the largest share in the spectrum of families. The biomorphological spectrum is dominated by herbaceous plants (61%), namely, herbaceous polycarpics (49%). In the ecologo-cenotic spectrum, the largest share is occupied by species of forest (42%) and meadow (33%) florocoenotypes. For practical use, the population of the region most often collects aboveground parts of plants, in particular, aboveground shoots (46%) or aboveground shoots and fruits (33%). All plant species listed in the annotated list are presented ex situ in the NBG. More than half of them (65.1%) are exhibited on the botanical-geographical plot “Steppes of Ukraine” of the NBG.

scholarly journals Peri-urban conservation in the Mondah forest of Libreville, Gabon: Red List assessments of endemic plant species, and avoiding protected area downsizing

Oryx ◽  
2015 ◽  
Vol 50 (3) ◽  
pp. 419-430 ◽  
Author(s):  
G. Walters ◽  
E. Ngagnia Ndjabounda ◽  
D. Ikabanga ◽  
J. P. Biteau ◽  
O. Hymas ◽  
...  
Keyword(s):  
Protected Areas ◽  
Plant Species ◽  
Threatened Species ◽  
Protected Area ◽  
Participant Observation ◽  
Field Work ◽  
Red List ◽  
Ex Situ ◽  
Endemic Plant ◽  
Endemic Plant Species

AbstractUrban development is an increasing threat to the integrity of formerly remote protected areas, in some cases resulting in their downgrading, downsizing or degazetting. One-quarter of previously remote protected areas are now within 17 km of a city and thus face the threat of urbanization. Here we describe a case of avoided downgrading, downsizing and degazetting of a protected area in the Mondah forest of Gabon, north of Libreville. Since its creation in 1934 the Forêt Classée de la Mondah has been downsized regularly, losing 40% of its area over 80 years. During this time the forest surrounding the Forêt Classée was subject to usage for urban and peri-urban needs, including agriculture, sand extraction, collection of medicinal plants, ceremonies, and housing construction. In 2010 the area was threatened with further downsizing. The presence of narrowly endemic plant species in the area was suspected, and mapping and evaluation of these species was proposed in an effort to maintain the protected area boundaries. Botanical field work, including ex situ conservation measures and participant observation in nearby forest communities, was conducted; 24 endemic species, all threatened by urbanization, were evaluated using the criteria for the IUCN Red List of Threatened Species. The borders of the protected area were maintained because of its role in maintaining irreplaceable habitat for threatened species. The area was renamed Raponda Walker Arboretum in 2012.

scholarly journals Mauritian coloured nectar no longer a mystery: a visual signal for lizard pollinators

2006 ◽  
Vol 2 (2) ◽  
pp. 165-168 ◽  
Author(s):  
Dennis M Hansen ◽  
Karin Beer ◽  
Christine B Müller
Keyword(s):  
Experimental Evidence ◽  
Plant Species ◽  
Flowering Plants ◽  
Visual Signal ◽  
Honest Signal ◽  
Endemic Plant ◽  
Floral Trait ◽  
Flower Visitation ◽  
Artificial Flowers ◽  
Endemic Plant Species

Most floral nectars are clear as water, and the enigmatic coloured nectar in three endemic plant species in Mauritius has puzzled scientists studying it. One hypothesis about the possible ecological function of coloured nectar is that it serves as a visual signal for pollinators. Recent studies have shown that at least two of the three Mauritian plant species with coloured nectar are visited and pollinated by endemic Phelsuma geckos. We here provide experimental evidence for the visual signal hypothesis by showing that Phelsuma ornata geckos prefer coloured over clear nectar in artificial flowers. In flowering plants, coloured nectar could additionally function as an honest signal that allows pollinators to assert the presence and judge the size of a reward prior to flower visitation, and to adjust their behaviour accordingly, leading to increased pollinator efficiency. Our study provides a first step in understanding this rare and intriguing floral trait.

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