scholarly journals Ecological-coenotic features of rare flora species of pine-oak stands of Volyn Polissya

2020 ◽  
Vol 10 (1) ◽  
pp. 55-61
Author(s):  
S. O. Glinska ◽  
S. S. Shtokalo ◽  
D. V. Lyko ◽  
Ya. V. Stepaniuk ◽  
L. K. Savchuk

Anthropogenic influence on the natural vegetation of Volyn Polissya threatens the existence of habitats of rare and endangered species of flora. Therefore, the region, unique in botanical and geographical terms, is gradually losing its specific vegetation characteristics. Having analyzed the literature data, herbarium data and materials of our own field studies in 2016-2019, we have compiled a list of rare and endangered species of pine-oak stands. In the habitat of pine-oak stands 89 rare species were found, 29 of which are listed in the Red Data Book of Ukraine, while Silene lithuanica is included in the European Red List. 3 species (Cypripedium calceolus, Trapa natans та Caldesia parnassifolia) are included into appendices of “The Convention on International Trade in Endangered Species of Wild Fauna and Flora”. 10 species are subject to protection according to the appendix of “Convention on the Conservation of European Wildlife and Natural Habitats” 56 species are regionally rare species for the flora of the Volyn region, 4 species are rare species of pine-oak stands. In our research we have analyzed the age range, density and recovery index for the species studied. The study found that for 63 rare species the dynamics of species abundance and distribution are satisfactory. The area of distribution and the number of 7 species is increasing: Allium ursinum, Galanthus nivalis, Platanthera chlorantha, Anemone sylvestris, Campanula persicifolia, Corydalis cava, Isopyrum thalictroides In the study area 14 species grow sporadically: Juniperus communis, Potentilla alba, Digitalis grandiflora, Gymnocarpium dryoptheris, Daphne mezereum, Neottia nidus-avis, Epipactis helleborine, Scorzonera purpurea, Asparagus officinalis, Iris sibirica, Adonis vernalis, Cephalanthera damasonium, Gentiana cruciate, Gentiana pneumonanthe. Dissemination information for Caldesia parnassifolia, Succisella inflexa, Genistella sagittalis, Salix myrtilloides, Ophioglossum vulgatum is insufficient for establishing species dynamics and needs further investigation. The conservation of pine-oak stands in Volyn Polissya will help to create the conditions for the growth of rare and endangered species of flora.

1970 ◽  
Vol 20 (2) ◽  
pp. 3-13 ◽  
Author(s):  
PN Koirala ◽  
D Pyakurel ◽  
K Gurung

Orchids are perennial, epiphytic, terrestrial or lithophytic herbs with roots having multilayered spongy tissues. In Nepal, 363 species of orchids are organized into 97 genera. Orchids fall under the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) Appendix II but do not fall under the legal protection of any existing national legislation. Habitat loss, forest destruction and degradation and over-exploitation have posed threats to the conservation of orchids in Nepal. The current study aims to document the orchids and estimate the stock of Dendrobium denudans and Dendrobium eriiflorum in a few potential locations of Rolpa district. A total of 36 species were documented in the surveyed 17 Village Development Committees (VDCs). Among them, 31 species were identified up to species level, two species up to generic level and the remaining three were unidentifed. The total stock of D. denudans was highest in Uwa VDC with 11018.08 kg followed by Seram VDC with the stock of 9982.57 kg. Similarly, D. eriiflorum stock in Seram, Siuri and Jaimakasala VDCs were 22750.01 kg, 7039.67 kg and 4933.46 kg, respectively. This study recommends a systematic research on the propagation technique; complete indexing of orchids; and inclusion of orchids in the Red Data Book on the threatened and endangered species. Orchid reserves in orchid hotspots should be established for the preservation and promotion of regeneration activities. The rare and endangered species should be preserved in botanic gardens. In addition to scientific attempts, the country should launch and implement a very firm regulation for their protection. Key words: Orchids; Dendrobium denudans; Dendrobium eriiflorum; distribution; conservation; Rolpa district DOI: 10.3126/banko.v20i2.4796 Banko Janakari Vol.20(2) 2010 pp.3-13


2021 ◽  
Vol 3 (1) ◽  
pp. 25
Author(s):  
Małgorzata Haliniarz ◽  
Sylwia Chojnacka ◽  
Ewa Kwiecińska-Poppe

As a result of human activity, the rate of extinction of species is now 100 to 1000 times faster than under natural conditions [1]. According to the FAO, 75% of the genetic diversity of agricultural crops worldwide has been lost since 1990. In Poland, about 100 species of field weeds are in danger of extinction. Archaeophytes growing on heavy calcareous soils, which are characteristic of the Lathyro-Melandrietum noctiflori, Caucalido-Scandicetum, Kicxietum spuriae communities, and weeds associated with the cultivation of flax, are particularly endangered. Halting the loss of rural biodiversity is a priority for the EU’s environmental protection strategy. Research aimed at assessing the infestation status of the weed agrophytocoenoses, located on rendzinas in the Lublin Province (Poland), has been conducted since 1997. The research was carried out using the Braun-Blanquet phytosociological method. Lublin Province is located in the south-eastern part of Poland. Here, there are good conditions for agricultural production. Agricultural land covers 57.9% of the total area of the voivodeship, of which 99.3% is agricultural land suitable for a good standard of farming. In such favorable environmental conditions, agriculture in the Lublin Province is characterized by an unfavorable structure of farms: 55.6% of more than 180,000 farms are those with an area under 5 ha. Such a large fragmentation of farms results in a low profitability of the agricultural sector, which results from extensive farming. Research has shown that low-input agriculture is conducive to the preservation of rare and endangered species of segetal flora [2]. Muscari comosum—a critically endangered (ER) species under strict protection—were found on several sites in the study area. Several sites of Caucalis platycarpos and Galium tricornutum, also recognized as ER species, were found in heavy rendzinas. Moreover, numerous sites of such rare species as Adonis aestivalis, Anthemis tinctoria, Thymelaea passerina, Lysimachia arvensis, Chaenorhinum minus and Euphorbia exigua were also identified. Research on the state of the population of rare species is a key challenge for scientists, because only knowledge about this will provide a basis for future relevant actions aimed at maintaining biodiversity and restoring degraded ecosystems [The poster presentation].


2020 ◽  
Vol 10 (2) ◽  
pp. 121-132
Author(s):  
Vladimir V. Bobrov

Based on the information provided in the 2nd and 3rd editions of the Red Book of Mongolia, the current state of the rare and endangered species of mollusks, crustaceans and insects of Mongolia and the threat to their existence are analyzed: water pollution and accidental catch during fishing (for aquatic species); degradation of habitats (haying, draining of swamps); overgrazing; collecting. The effectiveness of protection measures has been identified: the habitats of some species are included in the boundaries of specially protected natural territories; some species are listed in Appendix II of the Convention on International Trade in Endangered Species of Wild Fauna and Flora which will establish strict control over the international trade of rare and endangered species of invertebrates in Mongolia. It is indicated that the conservation of certain species of mollusks, crustaceans and insects requires additional and more specific measures: prevention of habitat degradation, including overgrazing and pollution of water bodies; a ban on collecting; conducting research to identify the concentration of populations, as well as assess the resources of food plants.


2014 ◽  
Vol 21 (5) ◽  
pp. 601-609
Author(s):  
Wang Deyun ◽  
Peng Jie ◽  
Chen Yajing ◽  
Lü Guosheng ◽  
Zhang Xiaoping ◽  
...  

2020 ◽  
Vol 957 (3) ◽  
pp. 47-53
Author(s):  
E.A. Kravets

The author offers mapping and geoecological analysis of the Russian Federation regions presence in the state program “Environmental Protection”. The unequal distribution of the program’s targets and activities in different regions is revealed. A considerable number of relevant environmental problems for several mentioned regions have not been reflected in the program. It is important to increase the area of specially protected natural areas for a significant number of subjects of the Russian Federation. The status “part of the territory occupied by specially protected natural territories of Federal value in the total area of the subject of the Russian Federation” is recommended to be assigned all regions of Russia. Identification and elimination of objects of accumulated environmental damage that threat to the Volga river is relevant, at least for all the regions in which the Volga flows. Not all regions with a high level of air pollution and/or large masses of air pollutants have the indicator “reduction of total emissions for the reporting year”. It is necessary to increase the Program of measures for the protection of rare and endangered species of plants and to expand the list of regions in which it is planned to protect rare and endangered species of animals.


2021 ◽  
Vol 13 (6) ◽  
pp. 3007
Author(s):  
Xiaojiong Zhao ◽  
Jian Wang ◽  
Junde Su ◽  
Wei Sun ◽  
Haoxian Meng

Quantitative assessment and evaluation of ecological parameters and biodiversity conservation are prime concerns for long-term conservation of rare and endangered species and their associated habitats in any ecological region. In this study, Gansu Province, a biodiversity hotspot, was chosen as the research area. We predicted the distribution patterns of suitable habitats for rare and endangered species. The replacement cost method was adopted to calculate the conservation value of rare and endangered species. The suitable habitat distribution area of rare and endangered wild animals reached 351,607.76 km2 (without overlapping area), while that of plants reached 72,988.12 km2 (without overlapping area). The conservation value of rare and endangered wildlife is US $1670.00 million. The high-value areas are mostly concentrated in the south and north of Gansu Province. The conservation value of rare and endangered wild plants is US $56,920.00 million. The high-value areas are mostly concentrated south of Gansu Province. The conservation value is US $58,590.00 million a year, and its distribution trend is gradually decreasing from northeast to southwest, with the highest in the forest area south of Gansu Province, followed by the Qilian Mountain area in the north. These results are of great significance for future improvement of the evaluation index system of ecosystem services and the development of ecosystem services and management strategies.


2021 ◽  
Vol 8 (1) ◽  
pp. 29-34
Author(s):  
Vincenzo Ferri ◽  
Paolo Crescia ◽  
Christiana Soccini ◽  
Alessio Olini ◽  
Stefano Celletti

[The spring presence of two individuals of the Sea lamprey, Petromyzon marinus, in the River Mignone near Tarquinia (Northern Lazio) could highlight a new Italian reproductive site of this rare and endangered species. This exceptional possibility could certainly be favored by the good quality of both the waters of the Mignone, and the environmental context of the record, but would require the urgent equipment of the barrier of Le Mole with a fish ladder in order to allow the sea lamprey’s upstream migration towards the areas of the upper course, even more suitable for their reproduction].   [Article in Italian]


2014 ◽  
Vol 12 (1) ◽  
pp. 418-427
Author(s):  
Mansi Mansi ◽  
Rakesh Pandey ◽  
Carolyn Stringer

The purpose of this study is to explore the biodiversity reporting practices inside Indian companies. Biodiversity reporting studies across Indian companies are important because India has a wealth of biodiversity assets, that is, wildlife, flora, fauna, natural habitats, rare and endangered species and biological resources, and accounts for 7.8% of the global recorded species (Biological Diversity Act, the Biodiversity Rules, Andhra Pradesh Biodiversity Board, 2009). There are approximately 45,500 species of plants, 91,200 species of animals and 5,550 microbial species documented in India (National Biodiversity Authority, 2014). The International Union for the Conservation of Nature (IUCN) has listed 132 species of animals and plants in the Critically Endangered Category (Sudhi, 2012). To date, the literature omits to explore the biodiversity reporting practices inside Indian companies. Another important reason to conduct is this study is that India has alarming population levels; thus there is a huge demand for land, energy, and resources, which leads to massive biodiversity loss, deforestation, and habitat destruction. It is very likely that with the limited land mass and increasing population in India, several ecosystems, wildlife, flora and fauna will be/have been exploited, disturbed, and endangered. Given the high potential impact on biodiversity by industries, we are concerned that there is a dearth of biodiversity reporting studies within the Indian subcontinent. We concentrate on the largest companies (based on market capitalisation) because similar to Van Liempd and Busch (2013), we also expect that the largest companies have the greatest impact on biodiversity; therefore, they are expected to show more accountability to their stakeholders. Therefore it is worth exploring how Indian companies are engaging in biodiversity reporting practices (e.g. biodiversity conservation, biodiversity protection, habitat and ecosystem conservation); and whether these organisations are disclosing their impact(s) (both in quantity and quality) on biodiversity (such as wildlife, flora and fauna). Moreover, India has also been classified as one of 17 mega-diversity countries by The World Conservation Monitoring Centre which account for more than 70% of the planet’s species (Williams, 2001). All these reasons make this study timely and important.


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