Abstract The aim of this study was to estimate reproductive effort and success in tropical trees and to examine the effect of pollen limitation on reproductive success. Pollen limitation was assessed through pollen supplementation experiment to contrast the open pollination treatment. The taxa selected were Bombax ceiba, Erythrina stricta (ornithophilous trees), Lagerstroemia speciosa, Mesua ferrea and Schima wallichii (entomophilous trees). Index of pollen limitation was highest in Bombax ceiba and Erythrina stricta (both self-incompatible species). The remaining three species were partially self-incompatible with favouring selfing in Lagerstroemia speciosa and Mesua ferrea and supporting outcrossing in Schima wallichii. Therefore, the high index of pollen limitation in Bombax ceiba and Erythrina stricta might be due to the effect of either lacking quality pollen or lacking bird pollinators. All five species produce a large amount of pollen at individual tree level in the order of 108 (Erythrina stricta) to 1010 (Mesua ferrea). Fruit and seed set following pollen supplementation were higher than the open pollination (as control) in all studied species. Pollen limitation in this study is likely associated with the effectiveness of pollinator and their frequency, as all the studied species had produced ample pollen at tree crown level which ultimately leads to pollinator resource limitation in tropical trees.
{"title":"Pollen limitation failing reproductive success in selected animal pollinated trees of tropical moist deciduous forest of north-eastern hill region, India","authors":"V. P. Khanduri","doi":"10.2478/hacq-2022-0014","DOIUrl":"https://doi.org/10.2478/hacq-2022-0014","url":null,"abstract":"Abstract The aim of this study was to estimate reproductive effort and success in tropical trees and to examine the effect of pollen limitation on reproductive success. Pollen limitation was assessed through pollen supplementation experiment to contrast the open pollination treatment. The taxa selected were Bombax ceiba, Erythrina stricta (ornithophilous trees), Lagerstroemia speciosa, Mesua ferrea and Schima wallichii (entomophilous trees). Index of pollen limitation was highest in Bombax ceiba and Erythrina stricta (both self-incompatible species). The remaining three species were partially self-incompatible with favouring selfing in Lagerstroemia speciosa and Mesua ferrea and supporting outcrossing in Schima wallichii. Therefore, the high index of pollen limitation in Bombax ceiba and Erythrina stricta might be due to the effect of either lacking quality pollen or lacking bird pollinators. All five species produce a large amount of pollen at individual tree level in the order of 108 (Erythrina stricta) to 1010 (Mesua ferrea). Fruit and seed set following pollen supplementation were higher than the open pollination (as control) in all studied species. Pollen limitation in this study is likely associated with the effectiveness of pollinator and their frequency, as all the studied species had produced ample pollen at tree crown level which ultimately leads to pollinator resource limitation in tropical trees.","PeriodicalId":39239,"journal":{"name":"Hacquetia","volume":"22 1","pages":"117 - 129"},"PeriodicalIF":0.5,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69209338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract There are 96 species of the genus Carex (Cyperaceae) known in the flora of Ukraine, but so far there are no data about its hybrids for the country yet. However, the first one, C. × takhtadjanii [C. diluta × C. distans], was discovered in Starobilsk town (Luhansk region) during a field investigation in 2021. Detailed information about this floristic finding with the description of morphological characters of this hybrid and its habitat is given. Also a map with known locations of C. × takhtadjanii around the world is compiled, as well as the main morphological differences between this hybrid and its parental species are reported.
{"title":"Carex × takhtadjanii (Carex diluta × C. distans; Cyperaceae), a new hybrid for the flora of Ukraine","authors":"M. Peregrym, Jacob Koopman","doi":"10.2478/hacq-2022-0011","DOIUrl":"https://doi.org/10.2478/hacq-2022-0011","url":null,"abstract":"Abstract There are 96 species of the genus Carex (Cyperaceae) known in the flora of Ukraine, but so far there are no data about its hybrids for the country yet. However, the first one, C. × takhtadjanii [C. diluta × C. distans], was discovered in Starobilsk town (Luhansk region) during a field investigation in 2021. Detailed information about this floristic finding with the description of morphological characters of this hybrid and its habitat is given. Also a map with known locations of C. × takhtadjanii around the world is compiled, as well as the main morphological differences between this hybrid and its parental species are reported.","PeriodicalId":39239,"journal":{"name":"Hacquetia","volume":"22 1","pages":"91 - 96"},"PeriodicalIF":0.5,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42261287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract In Govci under Mt. Poldanovec above the Trebuša Valley we found a new locality of southeastern-Alpine (Alpic) endemic Spiraea decumbens subsp. tomentosa, which is new to the flora of Slovenia and the Dinaric Alps. Its closest known localities are in the western Julian Prealps in Northeastern Italy. A small population of several ten shrublets occurs at elevations of about 570 m in shady, almost vertical dolomite rocks, in a stand of the endemic association Phyteumato columnae-Primuletum carniolicae. Despite a very small population we assume there are other localities in this area, where numerous gorges are very difficult to acces and have therefore not yet been sufficiently studied.
{"title":"Spiraea decumbens Koch subsp. tomentosa (Poech) Dostál, novelty for the flora of Slovenia and the Dinaric Alps","authors":"I. Dakskobler","doi":"10.2478/hacq-2022-0003","DOIUrl":"https://doi.org/10.2478/hacq-2022-0003","url":null,"abstract":"Abstract In Govci under Mt. Poldanovec above the Trebuša Valley we found a new locality of southeastern-Alpine (Alpic) endemic Spiraea decumbens subsp. tomentosa, which is new to the flora of Slovenia and the Dinaric Alps. Its closest known localities are in the western Julian Prealps in Northeastern Italy. A small population of several ten shrublets occurs at elevations of about 570 m in shady, almost vertical dolomite rocks, in a stand of the endemic association Phyteumato columnae-Primuletum carniolicae. Despite a very small population we assume there are other localities in this area, where numerous gorges are very difficult to acces and have therefore not yet been sufficiently studied.","PeriodicalId":39239,"journal":{"name":"Hacquetia","volume":"22 1","pages":"107 - 116"},"PeriodicalIF":0.5,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49568201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V. Minarchenko, U. Karpiuk, N. Kovalska, I. Tymchenko, T. Dvirna, Iryna Сholak
Abstract The leaves of different species of the genus Artemisia show considerable inner and external structural diversity. This paper presents a comparative study of the micromorphological features of leaf surface for seven species from different regions of Ukraine: A. absinthium L., A. annua L., A. dracunculus L., A. marschalliana Spreng., A. vulgaris L., A. argyi H.Lév. & Vaniot, and A. verlotiorum Lamotte. The vegetative organs of these plants have potentially significant value as medicinal raw materials. This study was carried out using both light and scanning electron microscopy. The main diagnostic characteristics for each species – in terms of form and structure of epidermal cells, stomata, and trichomes (glandular and non-glandular) – were described and illustrated. Using combinations of selected qualitative micromorphological characteristics of the investigated species of Artemisia, it is possible to detect the species identity of these raw materials.
摘要不同种类的蒿属植物叶片表现出相当大的内外结构多样性。本文对乌克兰不同地区7种苦艾草(a . absinthium L.)、黄花草(a . annua L.)、龙骨草(a . dracunculus L.)和marschalliana春(a . marschalliana春季)叶片表面微形态特征进行了比较研究。， A. vulgaris L.， A. argyi h .。& Vaniot和A. verlotiorum Lamotte。这些植物的营养器官作为药用原料具有潜在的重要价值。这项研究是用光学和扫描电子显微镜进行的。描述和说明了每个物种的主要诊断特征-根据表皮细胞，气孔和毛状体(腺和非腺)的形式和结构。利用所选的被调查蒿属植物的定性微形态特征组合，可以检测这些原料的物种身份。
{"title":"Diagnostic micromorphological features of leaf surface of selected species of the genus Artemisia L. (Asteraceae)","authors":"V. Minarchenko, U. Karpiuk, N. Kovalska, I. Tymchenko, T. Dvirna, Iryna Сholak","doi":"10.2478/hacq-2022-0012","DOIUrl":"https://doi.org/10.2478/hacq-2022-0012","url":null,"abstract":"Abstract The leaves of different species of the genus Artemisia show considerable inner and external structural diversity. This paper presents a comparative study of the micromorphological features of leaf surface for seven species from different regions of Ukraine: A. absinthium L., A. annua L., A. dracunculus L., A. marschalliana Spreng., A. vulgaris L., A. argyi H.Lév. & Vaniot, and A. verlotiorum Lamotte. The vegetative organs of these plants have potentially significant value as medicinal raw materials. This study was carried out using both light and scanning electron microscopy. The main diagnostic characteristics for each species – in terms of form and structure of epidermal cells, stomata, and trichomes (glandular and non-glandular) – were described and illustrated. Using combinations of selected qualitative micromorphological characteristics of the investigated species of Artemisia, it is possible to detect the species identity of these raw materials.","PeriodicalId":39239,"journal":{"name":"Hacquetia","volume":"22 1","pages":"131 - 141"},"PeriodicalIF":0.5,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46544277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract A population of Atriplex micrantha subsp. micrantha was found in Valle d’Aosta region representing the first north-western Italian record and the second one at national level. The newly found population (about 100 individuals) covers an area of about 200 m2, and grows on uncultivated and saline lands at 950 m. Despite the inland locality (the species naturally grows in saline places), its occurrence is probably linked to the use of salt-spreading vehicles. Concerning A. oblongifolia, only one Italian record was published up to now (in 1898 in Emilia-Romagna region) but neither any herbarium specimen was traced nor plants were discovered after field surveys. Finally, we studied in detail the types of A. micrantha subsp. micrantha, A. oblongifolia, and A. heterosperma. Lectotypes were designated for A. micrantha and A. oblongifolia (Ledebour’s and Waldstein & Kitaibel’s illustrations), whereas we correct Schwarz’s typification for A. heterosperma (Art. 9.10 ICN).
摘要:微甘菊亚属的一个居群。在Valle d 'Aosta地区发现了薇甘菊，这是意大利西北部的第一次记录，也是国家一级的第二次记录。新发现的种群(约100只)占地面积约200平方米，生长在海拔950米的未开垦和盐碱地上。尽管分布在内陆(该物种自然生长在盐碱地)，但其发生可能与使用撒盐工具有关。迄今为止，意大利只发表了一篇关于长叶黄杨的记录(1898年在艾米利亚-罗马涅地区)，但没有在植物标本馆找到标本，也没有在野外调查中发现植物。最后，对薇甘菊亚属植物的种类进行了详细的研究。薇甘菊、长叶菊和异精子菊。选择型被指定为A. micrantha和A. oblongifolia (Ledebour和Waldstein & Kitaibel的插图)，而我们纠正了Schwarz对A. heterosperma的分类(ICN第9.10条)。
{"title":"Studies on the genus Atriplex (Chenopodiaceae) in Italy VII. Atriplex micrantha and A. oblongifolia","authors":"D. Iamonico, M. Bovio","doi":"10.2478/hacq-2022-0010","DOIUrl":"https://doi.org/10.2478/hacq-2022-0010","url":null,"abstract":"Abstract A population of Atriplex micrantha subsp. micrantha was found in Valle d’Aosta region representing the first north-western Italian record and the second one at national level. The newly found population (about 100 individuals) covers an area of about 200 m2, and grows on uncultivated and saline lands at 950 m. Despite the inland locality (the species naturally grows in saline places), its occurrence is probably linked to the use of salt-spreading vehicles. Concerning A. oblongifolia, only one Italian record was published up to now (in 1898 in Emilia-Romagna region) but neither any herbarium specimen was traced nor plants were discovered after field surveys. Finally, we studied in detail the types of A. micrantha subsp. micrantha, A. oblongifolia, and A. heterosperma. Lectotypes were designated for A. micrantha and A. oblongifolia (Ledebour’s and Waldstein & Kitaibel’s illustrations), whereas we correct Schwarz’s typification for A. heterosperma (Art. 9.10 ICN).","PeriodicalId":39239,"journal":{"name":"Hacquetia","volume":"22 1","pages":"97 - 105"},"PeriodicalIF":0.5,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43215501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract We have analyzed structural and dynamic characteristics (production, morphometric parameters, phytocoenotic features and invasive behavior) of two locations with the alien species Pistia stratiotes L. in different types of water bodies, by origin, use and trophic status (a drainage canal and oxbow lake) in the outskirts of Kyiv. It is possible that in the case of increased anthropogenic eutrophication due to inorganic nitrogen, mother plants become smaller and more compact. The variability of morphological features increases. We also have distinguished growth of invasive potential of the species in the conditions of the water bodies of the region.
{"title":"Ecological features of the alien species Pistia stratiotes L. in different habitats of the secondary distribution range (Ukraine)","authors":"M. Prokopuk, L. Zub","doi":"10.2478/hacq-2022-0001","DOIUrl":"https://doi.org/10.2478/hacq-2022-0001","url":null,"abstract":"Abstract We have analyzed structural and dynamic characteristics (production, morphometric parameters, phytocoenotic features and invasive behavior) of two locations with the alien species Pistia stratiotes L. in different types of water bodies, by origin, use and trophic status (a drainage canal and oxbow lake) in the outskirts of Kyiv. It is possible that in the case of increased anthropogenic eutrophication due to inorganic nitrogen, mother plants become smaller and more compact. The variability of morphological features increases. We also have distinguished growth of invasive potential of the species in the conditions of the water bodies of the region.","PeriodicalId":39239,"journal":{"name":"Hacquetia","volume":"21 1","pages":"361 - 370"},"PeriodicalIF":0.5,"publicationDate":"2022-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47771760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract This study is a contribution to the knowledge of the floristic composition and syntaxonomical significance of Quercus suber woodlands of Tizi Ouzou province, which represent the last remnants of ancient forests. The field surveys were taken in several locations representative of cork oak woodlands, using the Braun-Blanquet method. A matrix of 96 phytosociological relevés and 160 plant taxa was treated with clustering analysis and correspondence analysis. These multivariate analyses showed congruent results and allowed the definition of four main clusters of cork oak woodlands, corresponding to four syntaxa according to synecological and syndynamic gradients. They belong to three associations, of which one is newly described, and two subassociations. They are: Sileno imbricatae-Quercetum suberis ass. nov., a mesophilous association newly described here, on siliceous soils and in the humid ombrotype; Cytiso villosi-Quercetum suberis, a mesophilous association, with two subassociations: quercetosum canariensis, and myrtetosum communis, this later reported for the first time in the study area, and both localized in the humid ombrotype and confined on markedly acid soils; Erico arboreae-Myrtetum communis, thermophilous secondary shrubland association developed in the subhumid ombrotype, on flysch substrates, also identified for the first time in this area. Syntaxonomic, synecological and syndynamic considerations are given for each syntaxon.
{"title":"Syntaxonomical survey of cork oak forests (Quercus suber L.) in the province of Tizi Ouzou, Kabylia, Northern Algeria","authors":"R. Meddour, O. Sahar, G. Bouxin","doi":"10.2478/hacq-2022-0007","DOIUrl":"https://doi.org/10.2478/hacq-2022-0007","url":null,"abstract":"Abstract This study is a contribution to the knowledge of the floristic composition and syntaxonomical significance of Quercus suber woodlands of Tizi Ouzou province, which represent the last remnants of ancient forests. The field surveys were taken in several locations representative of cork oak woodlands, using the Braun-Blanquet method. A matrix of 96 phytosociological relevés and 160 plant taxa was treated with clustering analysis and correspondence analysis. These multivariate analyses showed congruent results and allowed the definition of four main clusters of cork oak woodlands, corresponding to four syntaxa according to synecological and syndynamic gradients. They belong to three associations, of which one is newly described, and two subassociations. They are: Sileno imbricatae-Quercetum suberis ass. nov., a mesophilous association newly described here, on siliceous soils and in the humid ombrotype; Cytiso villosi-Quercetum suberis, a mesophilous association, with two subassociations: quercetosum canariensis, and myrtetosum communis, this later reported for the first time in the study area, and both localized in the humid ombrotype and confined on markedly acid soils; Erico arboreae-Myrtetum communis, thermophilous secondary shrubland association developed in the subhumid ombrotype, on flysch substrates, also identified for the first time in this area. Syntaxonomic, synecological and syndynamic considerations are given for each syntaxon.","PeriodicalId":39239,"journal":{"name":"Hacquetia","volume":"21 1","pages":"297 - 325"},"PeriodicalIF":0.5,"publicationDate":"2022-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45900773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Muscari baeticum, originating from western Europe, is here recorded as new from the central eastern part of Tunisia. So far, it was known only from Algeria and Morocco within the southern part of the Mediterranean basin. Description of the species as well as first data about its ecology in Tunisia together with geographical distribution and diagnostic features of closely related species are given. Photographic illustrations of the new reported taxon and an updated key to the Muscari species in North Africa are also provided.
{"title":"Muscari baeticum (Scilloideae, Asparagaceae), a new addition to the native flora of Tunisia and third report to Mediterranean Africa","authors":"R. Mokni","doi":"10.2478/hacq-2022-0002","DOIUrl":"https://doi.org/10.2478/hacq-2022-0002","url":null,"abstract":"Abstract Muscari baeticum, originating from western Europe, is here recorded as new from the central eastern part of Tunisia. So far, it was known only from Algeria and Morocco within the southern part of the Mediterranean basin. Description of the species as well as first data about its ecology in Tunisia together with geographical distribution and diagnostic features of closely related species are given. Photographic illustrations of the new reported taxon and an updated key to the Muscari species in North Africa are also provided.","PeriodicalId":39239,"journal":{"name":"Hacquetia","volume":"21 1","pages":"355 - 360"},"PeriodicalIF":0.5,"publicationDate":"2022-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47814334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract The escape from cultivation of Ficus microcarpa (Moraceae, Magnoliopsida) in Algeria is here reported. Several localities where the species reproduces from seeds have been discovered recently in northeastern Algeria. A map of its current distribution in the study area is provided. The species colonizes mainly urban habitats (walls, balconies and sidewalks) but its propagation in the natural environment is being facilitated by birds that disseminate the seeds over long distances. Ficus microcarpa can be considered as in the process of naturalization in Algeria. An updated key to species of the genus Ficus in Algeria is provided.
{"title":"First record of Ficus microcarpa L. f. (Moraceae) in Algeria","authors":"Nora Sakhraoui, F. Verloove, Azzedine Hadef","doi":"10.2478/hacq-2022-0008","DOIUrl":"https://doi.org/10.2478/hacq-2022-0008","url":null,"abstract":"Abstract The escape from cultivation of Ficus microcarpa (Moraceae, Magnoliopsida) in Algeria is here reported. Several localities where the species reproduces from seeds have been discovered recently in northeastern Algeria. A map of its current distribution in the study area is provided. The species colonizes mainly urban habitats (walls, balconies and sidewalks) but its propagation in the natural environment is being facilitated by birds that disseminate the seeds over long distances. Ficus microcarpa can be considered as in the process of naturalization in Algeria. An updated key to species of the genus Ficus in Algeria is provided.","PeriodicalId":39239,"journal":{"name":"Hacquetia","volume":"21 1","pages":"347 - 354"},"PeriodicalIF":0.5,"publicationDate":"2022-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45099586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract This article deals with phytosociological and ecological requirements of the vulnerable species Festuca pallens in Ukraine. Based on the analysis of 51 relevés, we have recognized the occurrence of Festuca pallens in three associations within the Festuco-Brometea class. Some communities where Festuca pallens occurs have transitional stages of succession to forest edge vegetation according to the expert system classification. In addition, we evaluated the ecological differences among occupied habitats using Didukh’s phytoindication scales and concluded that the most important ecological factors are soil humidity, nitrogen content, soil aeration, salt regime, carbonate content, thermoregime, and climate continentality. Finally, we evaluated the threats to the existence of these communities with the presence of Festuca pallens, taking into account climate change and other impacts of anthropogenic activities (illegal mining, recreation, afforestation).
{"title":"Phytosociological and ecological peculiarities of Festuca pallens Host in Ukraine","authors":"Y. Didukh, Iuliia Vasheniak, I. Bednarska","doi":"10.2478/hacq-2022-0004","DOIUrl":"https://doi.org/10.2478/hacq-2022-0004","url":null,"abstract":"Abstract This article deals with phytosociological and ecological requirements of the vulnerable species Festuca pallens in Ukraine. Based on the analysis of 51 relevés, we have recognized the occurrence of Festuca pallens in three associations within the Festuco-Brometea class. Some communities where Festuca pallens occurs have transitional stages of succession to forest edge vegetation according to the expert system classification. In addition, we evaluated the ecological differences among occupied habitats using Didukh’s phytoindication scales and concluded that the most important ecological factors are soil humidity, nitrogen content, soil aeration, salt regime, carbonate content, thermoregime, and climate continentality. Finally, we evaluated the threats to the existence of these communities with the presence of Festuca pallens, taking into account climate change and other impacts of anthropogenic activities (illegal mining, recreation, afforestation).","PeriodicalId":39239,"journal":{"name":"Hacquetia","volume":"48 6","pages":"235 - 252"},"PeriodicalIF":0.5,"publicationDate":"2022-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41305522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：