7 results on '"TRANSFORMED ECOSYSTEMS"'
Search Results
2. Local communities’ perception and attitude towards dynamic ecosystem in a part of Kailash sacred landscape - India
- Author
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Arti Kala, Alka Chaudhary, B.S. Adhikari, and G.S. Rawat
- Subjects
Community perception ,Grassland ,Himkhola ,Livestock ,Rang-Shauka ,Transformed ecosystems ,Environmental sciences ,GE1-350 - Abstract
Most ecosystems are affected by various types of disturbances, which play an important role in shaping the structure of the individual population and the character of ecosystems as a whole. Perceptions and experiences of the local community about these disturbances play an important role in developing the various adaptation strategies and policies. The present study was conducted in the upper part of the Kailash Sacred Landscape (KSL) in India, situated in the Himkhola micro-watershed in the Chaundas valley of Dharchula block in the Pithoragarh district of Uttarakhand state. Survey methods were used to recognize the condition of major ecosystems from the past to the present. Based on the interview the opinion of locals on transformed ecosystems are: i) the ecosystems and natural resources were in much better conditions in the past, ii) locals have been able to protect their natural resources to an extent due to their efforts and interventions and ability to recognize the factors that have caused these changes, iii) community is suffering from transformation and adapting, which has a negative impact on human mythological and traditional values in nature, and iv) conservation practices and promoting green employment may be achieved by engaging the local community only through regular discussions among stakeholders and the local community.
- Published
- 2022
- Full Text
- View/download PDF
3. Predicting the Risk of Exotic Plant Invasions in the Orinoco Region: Importance of Distribution Models, Climatic Niche and Functional Richness
- Author
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Beatriz Salgado-Negret, Nicolás Urbina-Cardona, Elkin A. Noguera-Urbano, Cristian A. Cruz-Rodríguez, and María Piedad Baptiste
- Subjects
exotic species ,functional trait ,transformed ecosystems ,natural biomes ,biological invasion ,Environmental sciences ,GE1-350 - Abstract
The process of biological invasions resulting from the introduction of exotic species is one of the most critical components of global environmental change. Although many hypotheses try to explain the processes underlying biological invasions, changes in land use are essential drivers mediating the colonization of exotic species at the landscape level. We used potential species distribution models developed in Maxent and a database of nine functional traits associated with invasion success for 18 exotic species with a high risk of establishment and difficulty of control in the Orinoco region from Colombia. We found that 67% of the species differed from the centroid in the climatic niche when comparing native and invaded localities. Overall, the native distribution localities showed a more restricted dispersal in their climatic niche, and for most species, native distribution was found within the broad environmental gradients of the invaded localities. Additionally, we found high climatic suitability for all exotic species across all the biomes and ecosystems; however, transformed ecosystems showed exotic plant species’ higher potential functional richness. Our research allowed us to identify key geographical areas that are highly susceptible to invasions and prioritize species that need control in particular ecosystems and biomes. This work provides early warnings on the potential risks of invasion of exotic species, and it will improve the monitoring and management efforts in the Orinoco region of Colombia.
- Published
- 2022
- Full Text
- View/download PDF
4. Adaptive Morphophysiological Features of Neottia ovata (Orchidaceae) Contributing to Its Natural Colonization on Fly Ash Deposits.
- Author
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Maleva, Maria, Borisova, Galina, Chukina, Nadezhda, Sinenko, Olga, Filimonova, Elena, Lukina, Natalia, and Glazyrina, Margarita
- Subjects
ORCHIDS ,FLY ash ,CHLOROPHYLL ,CAROTENOIDS - Abstract
In previous decades, some species of the Orchidaceae family have been found growing in man-made habitats. Neottia ovata is one of the most widespread orchids in Europe, however it is quite rare in Russia and is included in several regional Red Data Books. The purpose of this study was to compare the chemical composition and morphophysiological parameters of N. ovata from two forest communities of the Middle Urals, Russia: natural and transformed (fly ash dump of Verkhnetagil’skaya Thermal Power Station) for determining orchid adaptive features. The content of most of the studied metals in the underground parts (rhizome + roots) of N. ovata was considerably higher than in the leaves, which diminished the harmful effect of toxic metals on the aboveground organs. The adaptive changes in the leaf mesostructure of N. ovata such as an increase in epidermis thickness, the number of chloroplasts in the cell, and the internal assimilating surface were found for the first time. The orchids from the fly ash deposits were characterized by a higher content of chlorophyll b and carotenoids than plants from the natural forest community that evidenced the compensatory response on the decrease in chlorophyll a. The ability of N. ovata from the transformed habitat to maintain a relatively favorable water balance and stable assimilation indexes further contribute to its high viability. The study of orchid adaptive responses to unfavorable factors is necessary for their successful naturalization and introduction into a new environment. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
5. Adaptive Morphophysiological Features of Neottia ovata (Orchidaceae) Contributing to Its Natural Colonization on Fly Ash Deposits
- Author
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Maria Maleva, Galina Borisova, Nadezhda Chukina, Olga Sinenko, Elena Filimonova, Natalia Lukina, and Margarita Glazyrina
- Subjects
orchid ,transformed ecosystems ,fly ash ,metals ,adaptive responses ,water exchange ,Plant culture ,SB1-1110 - Abstract
In previous decades, some species of the Orchidaceae family have been found growing in man-made habitats. Neottia ovata is one of the most widespread orchids in Europe, however it is quite rare in Russia and is included in several regional Red Data Books. The purpose of this study was to compare the chemical composition and morphophysiological parameters of N. ovata from two forest communities of the Middle Urals, Russia: natural and transformed (fly ash dump of Verkhnetagil’skaya Thermal Power Station) for determining orchid adaptive features. The content of most of the studied metals in the underground parts (rhizome + roots) of N. ovata was considerably higher than in the leaves, which diminished the harmful effect of toxic metals on the aboveground organs. The adaptive changes in the leaf mesostructure of N. ovata such as an increase in epidermis thickness, the number of chloroplasts in the cell, and the internal assimilating surface were found for the first time. The orchids from the fly ash deposits were characterized by a higher content of chlorophyll b and carotenoids than plants from the natural forest community that evidenced the compensatory response on the decrease in chlorophyll a. The ability of N. ovata from the transformed habitat to maintain a relatively favorable water balance and stable assimilation indexes further contribute to its high viability. The study of orchid adaptive responses to unfavorable factors is necessary for their successful naturalization and introduction into a new environment.
- Published
- 2021
- Full Text
- View/download PDF
6. Adaptive morphophysiological features of neottia ovata (Orchidaceae) contributing to its natural colonization on fly ash deposits
- Author
-
Maleva, M., Borisova, G., Chukina, N., Sinenko, O., Filimonova, E., Lukina, N., Glazyrina, M., Maleva, M., Borisova, G., Chukina, N., Sinenko, O., Filimonova, E., Lukina, N., and Glazyrina, M.
- Abstract
In previous decades, some species of the Orchidaceae family have been found growing in man-made habitats. Neottia ovata is one of the most widespread orchids in Europe, however it is quite rare in Russia and is included in several regional Red Data Books. The purpose of this study was to compare the chemical composition and morphophysiological parameters of N. ovata from two forest communities of the Middle Urals, Russia: natural and transformed (fly ash dump of Verkhnetagil’skaya Thermal Power Station) for determining orchid adaptive features. The content of most of the studied metals in the underground parts (rhizome + roots) of N. ovata was considerably higher than in the leaves, which diminished the harmful effect of toxic metals on the aboveground organs. The adaptive changes in the leaf mesostructure of N. ovata such as an increase in epidermis thickness, the number of chloroplasts in the cell, and the internal assimilating surface were found for the first time. The orchids from the fly ash deposits were characterized by a higher content of chlorophyll b and carotenoids than plants from the natural forest community that evidenced the compensatory response on the decrease in chlorophyll a. The ability of N. ovata from the transformed habitat to maintain a relatively favorable water balance and stable assimilation indexes further contribute to its high viability. The study of orchid adaptive responses to unfavorable factors is necessary for their successful naturalization and introduction into a new environment. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
- Published
- 2021
7. Adaptive Morphophysiological Features of Neottia ovata (Orchidaceae) Contributing to Its Natural Colonization on Fly Ash Deposits
- Author
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Nadezhda Chukina, M. A. Glazyrina, Galina Borisova, N. V. Lukina, Olga Sinenko, Maria Maleva, and E. I. Filimonova
- Subjects
leaf mesostructure ,0106 biological sciences ,LEAF MESOSTRUCTURE ,Pollination ,metals ,Plant Science ,Horticulture ,FLY ASH ,Photosynthesis ,WATER EXCHANGE ,010603 evolutionary biology ,01 natural sciences ,SB1-1110 ,plant introduction ,chemistry.chemical_compound ,Botany ,orchid ,photosynthetic pigments ,Orchidaceae ,adaptive responses ,photosynthesis ,biology ,ORCHID ,PHOTOSYNTHESIS ,Plant culture ,biology.organism_classification ,TRANSFORMED ECOSYSTEMS ,transformed ecosystems ,Rhizome ,water exchange ,Neottia ovata ,fly ash ,Habitat ,chemistry ,ADAPTIVE RESPONSES ,PLANT INTRODUCTION ,Chlorophyll ,Epipactis atrorubens ,PHOTOSYNTHETIC PIGMENTS ,METALS ,010606 plant biology & botany - Abstract
In previous decades, some species of the Orchidaceae family have been found growing in man-made habitats. Neottia ovata is one of the most widespread orchids in Europe, however it is quite rare in Russia and is included in several regional Red Data Books. The purpose of this study was to compare the chemical composition and morphophysiological parameters of N. ovata from two forest communities of the Middle Urals, Russia: natural and transformed (fly ash dump of Verkhnetagil’skaya Thermal Power Station) for determining orchid adaptive features. The content of most of the studied metals in the underground parts (rhizome + roots) of N. ovata was considerably higher than in the leaves, which diminished the harmful effect of toxic metals on the aboveground organs. The adaptive changes in the leaf mesostructure of N. ovata such as an increase in epidermis thickness, the number of chloroplasts in the cell, and the internal assimilating surface were found for the first time. The orchids from the fly ash deposits were characterized by a higher content of chlorophyll b and carotenoids than plants from the natural forest community that evidenced the compensatory response on the decrease in chlorophyll a. The ability of N. ovata from the transformed habitat to maintain a relatively favorable water balance and stable assimilation indexes further contribute to its high viability. The study of orchid adaptive responses to unfavorable factors is necessary for their successful naturalization and introduction into a new environment. © 2021 by the authors. Licensee MDPI, Basel, Switzerland. The reported study was partly funded by RFBR and the Government of Sverdlovsk region, project number 20-44-660011 and the Ministry of Science and Higher Education of the Russian Federation as part of state task of the Ural Federal University, FEUZ-2020-0057.
- Published
- 2021
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