scholarly journals Diversity of ectomycorrhizal fungi associated with Quercus petraea in the national park Fruška gora in the Republic of Serbia

2021 ◽  
Vol 145 (11-12) ◽  
pp. 547-556
Author(s):  
Marina Milović ◽  
Saša Orlović ◽  
Zoran Galić ◽  
Saša Pekeč ◽  
Branislav Kovačević ◽  
...  

Although sessile oak is one of the most important deciduous forest tree species in Europe, data on the diversity of ectomycorrhizal (ECM) fungi on sessile oaks in the Republic of Serbia are scarce. The aim of this study was to provide the first insight into the diversity of ECM fungi on sessile oak in Serbia. Two sites Info center and Brankovac, located in National Park Fruška gora were chosen. ECM fungi were identified combining morphological and anatomical characterization with molecular analysis of nuclear rDNA internal transcribed spacer (ITS) region. All vital ECM root tips were counted, diversity indices were calculated, and ECM fungi were classified into the exploration types. The granulometric and chemical composition of soil were analyzed as well. At both sites, 26 different ECM fungal taxa were recorded in total, 17 taxa were observed at the site Info center and 12 taxa at Brankovac. ECM communities consisted of a few abundant taxa and a larger number of rare taxa. Lactarius quietus, Cenococcum geophilum, and Tomentella sublilacina were recorded at both sites. High abundance of contact and short-distance exploration types recorded in studied stands suggests that soils are sufficiently rich in total nitrogen and organic matter. Values of diversity indices recorded in studied sessile oak stands from Fruška gora were lower in comparison to those obtained in stands of different oak species across Europe which is likely induced by drought. To get a more thorough insight into the diversity of ECM fungi on sessile oak, research should be continued at more sites and seasonal dynamics should be included.

2021 ◽  
Vol 12 ◽  
Author(s):  
Sara Marañón-Jiménez ◽  
Dajana Radujković ◽  
Erik Verbruggen ◽  
Oriol Grau ◽  
Matthias Cuntz ◽  
...  

Ectomycorrhizal (EcM) and saprotrophic fungi interact in the breakdown of organic matter, but the mechanisms underlying the EcM role on organic matter decomposition are not totally clear. We hypothesized that the ecological relations between EcM and saprotroph fungi are modulated by resources availability and accessibility, determining decomposition rates. We manipulated the amount of leaf litter inputs (No-Litter, Control Litter, Doubled Litter) on Trenched (root exclusion) and Non-Trenched plots (with roots) in a temperate deciduous forest of EcM-associated trees. Resultant shifts in soil fungal communities were determined by phospholipid fatty acids and DNA sequencing after 3 years, and CO2 fluxes were measured throughout this period. Different levels of leaf litter inputs generated a gradient of organic substrate availability and accessibility, altering the composition and ecological relations between EcM and saprotroph fungal communities. EcM fungi dominated at low levels of fresh organic substrates and lower organic matter quality, where short-distances exploration types seem to be better competitors, whereas saprotrophs and longer exploration types of EcM fungi tended to dominate at high levels of leaf litter inputs, where labile organic substrates were easily accessible. We were, however, not able to detect unequivocal signs of competition between these fungal groups for common resources. These results point to the relevance of substrate quality and availability as key factors determining the role of EcM and saprotroph fungi on litter and soil organic matter decay and represent a path forward on the capacity of organic matter decomposition of different exploration types of EcM fungi.


2019 ◽  
Vol 53 (2) ◽  
pp. 337-348
Author(s):  
V. N. Tarasova ◽  
T. Ahti ◽  
O. Vitikainen ◽  
A. V. Sonina ◽  
L. Myllys

This is a report of a revision of 565 herbarium specimens of lichens, lichenicolous or non-lichenized fungi and additional locality records of common species produced from a visit of the Russian-Finnish expedition to Vodlozersky National Park right after its foundation in 1991. The analyzed collection and field records represent the earliest information about the lichen flora of the territory of the park. In total, 177 species are listed including 173 lichens, 3 non-lichenized and 1 lichenicolous fungi. Xylographa rubescens is new to the Republic of Karelia. Twenty two species are reported for the first time for biogeographic province Karelia transonegensis; 47 species for the Karelian part of Vodlozersky National Park; and 17 species for the whole territory of the park.


Author(s):  
Hannah Cornwell

This book examines the two generations that spanned the collapse of the Republic and the Augustan period to understand how the concept of pax Romana, as a central ideology of Roman imperialism, evolved. The author argues for the integral nature of pax in understanding the changing dynamics of the Roman state through civil war to the creation of a new political system and world-rule. The period of the late Republic to the early Principate involved changes in the notion of imperialism. This is the story of how peace acquired a central role within imperial discourse over the course of the collapse of the Republican framework to become deployed in the legitimization of the Augustan regime. It is an examination of the movement from the debates over the content of the concept, in the dying Republic, to the creation of an authorized version controlled by the princeps, through an examination of a series of conceptions about peace, culminating with the pax augusta as the first crystallization of an imperial concept of peace. Just as there existed not one but a series of ideas concerning Roman imperialism, so too were there numerous different meanings, applications, and contexts within which Romans talked about ‘peace’. Examining these different nuances allows us insight into the ways they understood power dynamics, and how these were contingent on the political structures of the day. Roman discourses on peace were part of the wider discussion on the way in which Rome conceptualized her Empire and ideas of imperialism.


2021 ◽  
Vol 42 (1) ◽  
pp. 111-126
Author(s):  
Cleves Nkie Mongo

This article provides insight into the “brown envelope journalism” in the Republic of the Congo (Brazzaville). Through in-depth interviews with journalists from four major Congolese news outlets, this research reveals how financial difficulties result in reporters justifying their violations of journalism ethics and standards. While two news outlets accept bribes to compensate for their precarious financial situation, two other news organizations pretend that they oppose envelope journalism although this research shows that their reporters also secretly accept bribes.


2021 ◽  
Vol 13 (15) ◽  
pp. 8398
Author(s):  
Sreten Simović ◽  
Tijana Ivanišević ◽  
Bojana Bradić ◽  
Svetlana Čičević ◽  
Aleksandar Trifunović

The appearance of the COVID-19 virus in Europe, at the beginning of 2020, brought many challenges and changes to society. These changes affected the behavior, desires, and needs of passengers in vehicles. The change in passenger behavior has contributed to the more difficult organization of passenger transport and traffic management. For these reasons, in the countries of South-East Europe (Serbia, Montenegro, Slovenia, Bosnia and Herzegovina, Greece, the Republic of Northern Macedonia and Croatia), this survey was conducted in order to examine which demographic characteristics of respondents (age, gender, residence, education, and health) influence choice of transport, with the aim to optimize the transport system in times of crisis in this region. 786 respondents participated in the research. The results showed that the acceptability of vehicle occupancy most often differs with respect to age, education, and health conditions of the respondents. The obtained results will greatly help the organizers of public transport and the transport system in the region, since based on these results they can have an insight into the demographic factors that influence the choice of transport mode during a crisis.


Mammalia ◽  
2006 ◽  
Vol 70 (1-2) ◽  
Author(s):  
David Brugière ◽  
Bakary Magassouba ◽  
Amidou Sylla ◽  
Halimou Diallo ◽  
Mamadou Sow

AbstractThe Republic of Guinea is thought to contain the largest population of common hippopotamus in West Africa. However, no systematic field survey has been carried out recently and the information available is limited to informal observations. To clarify the status of the common hippopotamus in Guinea, we carried out a biannual population survey along the section of the Niger River (the largest river in Guinea) within the Haut Niger National Park. We counted 93 hippopotamuses in 28 groups in the dry season and 77 hippopotamuses in 23 groups in the wet season. Mean group size and number of neonates did not change between the seasons. Hippopotomuses were more numerous along the river sections bordering uncultivated floodplains. This underlines the significance of this habitat (which is used as a grazing area) for conservation of this species. Haut Niger National Park is the most important protected area in Guinea for conservation of the common hippopotamus. Hippopotamus-human and -cattle conflicts in terms of floodplain use in the park's buffer zone should be closely monitored. Floodplain conversion to rice fields represents one of the most important threats to the long-term conservation of hippopotamus populations in Guinea.


Author(s):  
Przemysław Wilczyński

The rule of law, as stipulated in article 7 of the Constitution of the Republic of Poland, is one of the fundamental principles shaping the functioning of public administration in the Republic of Poland. Legality of the functioning of public administration is also accepted as the basic criterion of judicial and administrative review of the actions taken by the administration. However, judgments of administrative courts often go outside the boundaries of findings that could be made based on linguistic interpretation of legislative provisions, by referring to the rules of the legal system, including in cases where no doubts exist with regards to the interpretation of provisions. The aim of this paper is to offer insight into the basis and nature of doubts encountered with regards to the admissibility of the use of non-linguistic interpretation by administrative courts where the use of such interpretation does not appear to be required.


2021 ◽  
pp. 1-5
Author(s):  
Emanuela Martino ◽  
Mirko U. Granata ◽  
Rosangela Catoni ◽  
Valeria Cavalloro ◽  
Francesco Bracco

2018 ◽  
Vol 23 (11) ◽  
pp. 2214 ◽  
Author(s):  
Sung-Tae Chong ◽  
Heung Chul Kim ◽  
Jong-Gil Park ◽  
Chang-Yong Choi ◽  
Chang-Uk Park ◽  
...  

Migratory birds were captured, examined, banded and then released in accordance with a bird banding protocol of the Bird Research Center, National Park Research Institute, Korea National Park Service, from January-December 2010–2011 on Hong and Heuksan Islands, Jeollanam (Jeonnam) Province, in the Republic of Korea (ROK). Concurrently, ticks were collected from captured birds as part of a tick-borne disease surveillance program. A total of 381 ticks belonging to three genera and eight species – Ixodes turdus (297 ticks), Ixodes nipponensis (16), Haemaphysalis flava (46), Haemaphysalis longicornis (9), Haemaphysalis formosensis (5), Haemaphysalis ornithophila (6), Haemaphysalis concinna (1), and Amblyomma testudinarium (1)—were collected from 32 bird species belonging to 3 families. This is the first host report of A. testudinarium (1 nymph) collected from White’s Thrush, Zoothera aurea (Aves: Passeriformes: Turdidae), in the ROK. Most ticks were collected from birds during the months of April (44.1%) and November (54.2%).


Koedoe ◽  
1980 ◽  
Vol 23 (1) ◽  
Author(s):  
A. C Kemp

One hundred and two species of birds that are thought to be vulnerable in South Africa have been reported from or are likely to occur within the Kruger National Park. These species are considered in relation to their distribution and status in South Africa and the neigbouring countries. The following are suggested as conservation priorities for birds in the Park: 1. Re-establish the extinct Yellow-billed Oxpecker. 2. Investigate the suite of large carnivorous and scavenging birds that have declined over much of their range elsewhere in South Africa. 3. Investigate the species associated with riparian and wetland habitats in the Park. 4. Investigate the tropical species that are confined to the Park within South Africa.


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