scholarly journals The occurence of rare and protected plant species on the peat bog near Lake Bikcze (Łęczyńsko-Włodawskie Lakeland)

2012 ◽  
Vol 61 (2) ◽  
pp. 113-120 ◽  
Author(s):  
Magdalena Pogorzelec ◽  
Barbara Banach
Keyword(s):  
Plant Species ◽  
Abiotic Factors ◽  
Habitat Preferences ◽  
Peat Bog ◽  
Habitat Conditions ◽  
Drosera Rotundifolia ◽  
Western Shore ◽  
Betula Humilis ◽  
Menyanthes Trifoliata

This paper presents the results of a pilot field study, conducted in July 2007, designed to make floristic evaluation of the peat bog area adjacent to the western shore of Lake Bikcze (Łęczyńsko-Włodawskie Lakeland). The main aim of the study was to confirm the occurrence of populations of rare and legally protected plant species in this area and to identify, on a preliminary basis, habitat conditions in their stands. The occurrence of populations of the following strictly protected plant species: <i>Betula humilis</i>, <i>Salix lapponum</i>, <i>Salix myrtilloides</i>, <i>Carex limosa</i>, <i>Drosera intermedia</i>, <i>Drosera rotundifolia</i>, <i>Dactylorhiza incarnata</i>; and partially protected species: <i>Menyanthes trifoliata</i>, has been confirmed in the studied peat bog. Both an investigation of abiotic factors, conducted <i>in situ</i>, and an analysis of the species composition of the flora in terms of habitat preferences of particular groups of taxa have shown that the described rare plant species find suitable conditions for their growth and development in the studied peat bog.

scholarly journals The prospects for the survival of the population of a boreal relict species, Betula humilis Schrk., in a small isolated peat bog in the Łęczna - Włodawa Lakeland

2012 ◽  
Vol 64 (3) ◽  
pp. 39-46 ◽  
Author(s):  
Magdalena Pogorzelec ◽  
Joanna Wojciechowska
Keyword(s):  
Secondary Succession ◽  
Betula Pendula ◽  
Common Species ◽  
Peat Bog ◽  
Habitat Conditions ◽  
Relict Species ◽  
Study Population ◽  
Salix Cinerea ◽  
Betula Humilis ◽  
Biometric Features

An attempt was made to identify the major risks to the population of <i>Betula humilis</i> Schrk. existing in a small isolated transitional peat bog near Lake Bikcze, in the Łęczna-Włodawa Lakeland. The biometric features of 40 <i>Betula humilis</i> individuals were measured as well as the growth of shoots, flowering and fruiting were observed. Habitat conditions were characterized by making measurements of selected abiotic and biocenotic environmental factors. The obtained results allowed us to identify two main threats to the proper functioning of the study population. The first one is the possible loss of genetic identity of the species as a result of probable ongoing introgression by the potential crossing of <i>Betula humilis</i> with other species of the genus <i>Betula</i>, which are numerous in the flora of the studied area. Another threat is a change in habitat conditions (mainly light and water conditions), which is due to the accelerated secondary succession manifested by the expansion of common species such as <i>Salix cinerea</i>, <i>Betula pendula</i>, and <i>Phragmites australis</i>.

scholarly journals Protected plant species of forest, lakes and peatbogs in the Western Part of the Drawskie Lakeland

2009 ◽  
Vol 13 (1) ◽  
pp. 61-66
Author(s):  
Marta Umiastowska ◽  
Marian Ciaciura
Keyword(s):  
Plant Species ◽  
Viburnum Opulus ◽  
Partial Protection ◽  
Blechnum Spicant ◽  
Floristic Study ◽  
Drosera Rotundifolia ◽  
Lycopodium Annotinum ◽  
Forest Lakes ◽  
Protected Plants ◽  
Menyanthes Trifoliata

Protected plant species of forest, lakes and peatbogs in the Western Part of the Drawskie Lakeland A floristic study of forest communities, lakes, and peatbogs of the western part of the Drawskie Lakeland was carried out in 2006-2008. The study revealed the presence of numerous valuable plant species. More than 400 floristic lists were compiled. Plant surveys were conducted with the aid of the ATPOL square grid system. To increase the accuracy of the surveys, the basic ATPOL squares (10x10 km) were additionally subdivided into smaller ones of 1x1 km. The area of study was found to support 416 plant species, including protected ones: 17 species strictly protected (e.g., Blechnum spicant, Dactylorhiza incarnata, Drosera rotundifolia, Lycopodium annotinum, Utricularia intermedia) and 12 under partial protection (e.g., Frangula alnus, Menyanthes trifoliata, Ononis spinosa, Ribes nigrum, Viburnum opulus). The list of protected plants contains one species (Lobelia dortmanna) included in the Polish Red Book of Plants.

scholarly journals Photosynthetic parameters of a sedge-grass marsh as a big-leaf: effect of plant species composition

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Markéta Mejdová ◽  
Jiří Dušek ◽  
Lenka Foltýnová ◽  
Lenka Macálková ◽  
Hana Čížková
Keyword(s):  
Species Composition ◽  
Plant Species ◽  
Photosynthetic Parameters ◽  
Acorus Calamus ◽  
Dominant Plant Species ◽  
Local Plant ◽  
Rate Of Photosynthesis ◽  
Carex Acuta ◽  
Leaf P

AbstractThe study estimates the parameters of the photosynthesis–irradiance relationship (PN/I) of a sedge-grass marsh (Czech Republic, Europe), represented as an active “green” surface—a hypothetical “big-leaf”. Photosynthetic parameters of the “big-leaf” are based on in situ measurements of the leaf PN/I curves of the dominant plant species. The non-rectangular hyperbola was selected as the best model for fitting the PN/I relationships. The plant species had different parameters of this relationship. The highest light-saturated rate of photosynthesis (Asat) was recorded for Glyceria maxima and Acorus calamus followed by Carex acuta and Phalaris arundinacea. The lowest Asat was recorded for Calamagrostis canescens. The parameters of the PN/I relationship were calculated also for different growth periods. The highest Asat was calculated for the spring period followed by the summer and autumn periods. The effect of the species composition of the local plant community on the photosynthetic parameters of the “big-leaf” was addressed by introducing both real (recorded) and hypothetical species compositions corresponding to “wet” and “dry” hydrological conditions. We can conclude that the species composition (or diversity) is essential for reaching a high Asat of the “big-leaf ”representing the sedge-grass marsh in different growth periods.

Photosynthetic and anatomical responses of three plant species at two altitudinal levels in the Neotropical savannah

2016 ◽  
Vol 64 (8) ◽  
pp. 696 ◽  
Author(s):  
Vinícius Coelho Kuster ◽  
Silvana Aparecida Barbosa de Castro ◽  
Fernando Henrique Aguiar Vale
Keyword(s):  
Quantum Yield ◽  
Photosystem Ii ◽  
Plant Species ◽  
Photosynthetic Pigments ◽  
Abiotic Factors ◽  
Palisade Parenchyma ◽  
Structural Modifications ◽  
Physiological Alterations ◽  
Roupala Montana ◽  
Plastic Responses

The phytophysiognomies of the Neotropical savannah occur at different altitudes, which can determine distinctions in the levels of light and shade that plants are exposed. The focus of the study is analysing the functional traits of the leaves of Byrsonima verbascifolia (L.) Rich., Roupala montana Aubl. and Solanum lycocarpum A. St.-Hil. growing in phytophysiognomies at two distinct altitudes. We evaluated leaf anatomy, the quantum yield of photosystem II, and the photosynthetic pigments in plants occurring at two areas of Campo sujo, which are separated by 700 m of altitude, during the rainy season. The three plant species occurring at higher altitudes had thicker adaxial epidermis. B. verbascifolia and S. lycocarpum occurring at higher altitudes had thicker palisade parenchyma, whereas only B. verbascifolia had thicker spongy parenchyma at the same site. The quantum yield of photosystem II, and photosynthetic pigments had little differences between plants occurring at higher and lower altitudes. The results analysed show high structural modifications and low physiological alterations from altitudinal conditions. Thus, the influence of the abiotic factors appears to modulate the plastic responses of plants across altitude.

Competition between native and non-native plants.

2020 ◽  
pp. 291-307
Author(s):  
Elizabeth M. Wandrag ◽  
◽  
Jane A. Catford ◽  
◽  
◽  
...  
Keyword(s):  
Plant Species ◽  
Plant Communities ◽  
Native Species ◽  
Abiotic Factors ◽  
Invasion Biology ◽  
Competitive Interactions ◽  
Native Plant ◽  
Native Plant Species ◽  
New Locations ◽  
Strength Of Competition

The introduction of species to new locations leads to novel competitive interactions between resident native and newly-arriving non-native species. The nature of these competitive interactions can influence the suitability of the environment for the survival, reproduction and spread of non-native plant species, and the impact those species have on native plant communities. Indeed, the large literature on competition among plants reflects its importance in shaping the composition of plant communities, including the invasion success of non-native species. While competition and invasion theory have historically developed in parallel, the increasing recognition of the synergism between the two themes has led to new insights into how non-native plant species invade native plant communities, and the impacts they have on those plant communities. This chapter provides an entry point into the aspects of competition theory that can help explain the success, dominance and impacts of invasive species. It focuses on resource competition, which arises wherever the resources necessary for establishment, survival, reproduction and spread are in limited supply. It highlights key hypotheses developed in invasion biology that relate to ideas of competition, outlines biotic and abiotic factors that influence the strength of competition and species' relative competitive abilities, and describes when and how competition between non-native and native plant species can influence invasion outcomes. Understanding the processes that influence the strength of competition between non-native and native plant species is a necessary step towards understanding the causes and consequences of biological invasions.

scholarly journals Propagation of Threatened Nepenthes khasiana: Methods and Precautions

2015 ◽  
Vol 7 (3) ◽  
pp. 313-315
Author(s):  
Jibankumar S. KHURAIJAM ◽  
Rup K. ROY
Keyword(s):  
Plant Species ◽  
Threatened Species ◽  
Ex Situ Conservation ◽  
Ex Situ ◽  
In The Wild ◽  
Propagation Technique ◽  
Subsequent Propagation ◽  
Nepenthes Khasiana

Ex-situ conservation is an important key in the management of rare, endangered and threatened (RET) plant species and its effectiveness depends on several factors. Maintenance of viable germplasm and its subsequent propagation plays an important role in long term conservation of many RET species. Nepenthes khasiana is a rare and gravely threatened species in the wild due to over-collection and other threats. The species needs urgent in-situ and ex-situ conservation. Development of easy to propagate techniques would pave faster multiplication for its use of educational, medicinal and horticultural purpose. In the present paper, successful propagation technique of Nepenthes khasiana through seeds is demonstrated along with detailed information on precautions to be taken during the adoption of the techniques.

scholarly journals Diversitas Serangga Hutan Tanah Gambut Di Palangkaraya Kalimantan Tengah

2019 ◽  
Vol 6 (2) ◽  
pp. 156
Author(s):  
Julian Tambunan ◽  
I Ketut Ginantra ◽  
Ni Luh Watiniasih
Keyword(s):  
Plant Species ◽  
Similarity Index ◽  
Pitfall Traps ◽  
Light Traps ◽  
Central Kalimantan ◽  
Plant Samples ◽  
The Family ◽  
Number Of Plant Species ◽  
Burned Forest

This study aims to determine the diversity of insects and plants used as a habitat in unburned and previously burned peat land forests in Palangkaraya, Central Kalimantan. Insects were collected by beating the branches of plants, aerial sweeping, pitfall traps and light traps. Plants were identified in situ or plant samples were collected and identified later in the Lab. The diversity of insects were compared between unburned and previously burned peat forests by analyzing its index diversity (H’) and index of similarity (IS). In total, the insects collected from unburned peat forest were 551 individual, belongs to 12 order and 51 families, and 431 individual insects were collected from previously burned peat forest which belongs to 10 order and 38 families. The family of insects that most frequently found at both areas was Formicidae (Hymenoptera). The insects diversity of both forests were still high, that is H' = 3,45 of unburned peat forest and H '= 3,11 of previously burned peat forest, with the similarity index IS > 50% of both peat forests. The number of plant species found was higher in unburned peat forest (38 species) than in previously burned peat forest (9 species).  The previously burned forest was dominated by Acacia plants, while in unburned peat forest the plants seem to evenly spread.

scholarly journals “A herder’s duty is to think”: landscape partitioning and folk habitats of Mongolian herders in a mountain forest steppe (Khuvsugul-Murun region)

2019 ◽  
Vol 15 (1) ◽  
Author(s):  
B. Gantuya ◽  
Á. Avar ◽  
D. Babai ◽  
Á. Molnár ◽  
Zs Molnár
Keyword(s):  
Plant Species ◽  
Northern Hemisphere ◽  
Habitat Preferences ◽  
Mountain Forest ◽  
Forest Steppe ◽  
Ecological Knowledge ◽  
Structured Interviews ◽  
Habitat Classification ◽  
Macro Scale ◽  
Conducting Research

Abstract Background Traditional habitat knowledge, like the classification of folk habitats and how people partition their landscape into habitats, is an emerging but still understudied part of traditional ecological knowledge. Our objectives were to reconstruct the folk habitats and the partitioning of the landscape into these folk habitats by Mongolian herders in Northern Mongolia and to compare it with other Northern Hemisphere boreal-temperate classifications. Methods The study area is located in Seruun Gilad (Khuvsugul province) and belongs to the mountain forest steppe of the Khangai region (dominated by meadow steppes and larch forests). Most herder families use the area for summer pasturing. Data collection was based on indoor and outdoor, structured and semi-structured interviews and interviews during landscape walks and participatory fieldwork. We interviewed 20 people using 76+ photos of plant species and 25+ photos of habitats and asked them to name and describe the habitats and describe the habitat preferences of the species. Results Mongolian herders distinguished at least 88 folk habitat categories and knew well the habitat preferences of the 76 plant species. They argued that a herder has to be observant of nature. The habitat classification was moderately lexicalized, with many descriptive expressions. Most habitats (77%) belonged to the meso-scale, while macro-scale habitats (like taiga, Gobi) and micro-scale habitats (like marmot burrow, top of the tussock) were few. Habitat names did not reflect directly the usefulness of the habitat. Classification was multidimensional; key dimensions were geomorphological and edaphic. There were some species (e.g., botyuul, hyag, shireg) and species groups (hot plants, leafy plants) that were often used to describe habitat types. Conclusions Landscape partitionings in the Northern Hemisphere differed considerably in the importance of various dimensions used, with edaphic, geomorphological, hydrological, and dominant species-based dimensions having higher importance, while land use, successional, and zoological dimensions having lower importance. We argue that conducting research on folk habitats will contribute to a deeper understanding of how nature is perceived by locals and to a more efficient management of the Mongolian pastures.

scholarly journals Distribution and conservation status of the Critically Endangered Scrophularia takesimensis, a plant endemic to Ulleung Island, Republic of Korea

Oryx ◽  
2012 ◽  
Vol 46 (3) ◽  
pp. 399-402 ◽  
Author(s):  
Hyeok Jae Choi ◽  
Hyun Do Jang ◽  
Yuji Isagi ◽  
Byoung Un Oh
Keyword(s):  
Plant Species ◽  
Conservation Status ◽  
In Situ Conservation ◽  
Critically Endangered ◽  
Republic Of Korea ◽  
Endangered Plant ◽  
Seaward Side ◽  
Ulleung Island ◽  
Special Protection

AbstractScrophularia takesimensis Nakai is a Critically Endangered plant species endemic to Ulleung Island, Republic of Korea. We provide updated information on the distribution and conservation status of this species. We located 39 subpopulations and counted a total of 443 individuals, including some reintroduced. Observations of dried and broken branches, with fruits, of S. takesimensis along the coast may indicate dispersal by sea. The construction of coastal roads is the main threat to the species. To conserve this species more effectively we recommend that: (1) the two habitats identified as a priority for conservation should be afforded special protection, (2) habitats to the seaward side of coastal roads are more suitable than habitat on the landward side for in situ conservation, and (3) the presently known subpopulations require continuous protection and monitoring.

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