scholarly journals Checklist and red list of hornworts (Anthocerotophyta) and liverworts (Marchantiophyta) of Slovakia

Biologia ◽  
2021 ◽  
Author(s):  
Katarína Mišíková ◽  
Katarína Godovičová ◽  
Pavel Širka ◽  
Rudolf Šoltés
Keyword(s):  
Climatic Changes ◽  
Red List ◽  
Traffic Pollution ◽  
Natural Conditions ◽  
Anthropogenic Changes ◽  
Main Factors

AbstractThe presented checklist and red list include 231 liverwort (Marchantiophyta) and two hornwort species (Anthocerotophyta). Overall, 22.9% of liverworts are evaluated as threatened (CR – 4.3%, EN – 7.8%, VU – 10.8%), while 17 of species (7.4%) are categorized as NT, 11.6% as DD and 3.0% as RE. A total of 128 species (55.4% of the liverwort flora of Slovakia) were assessed as LC. For the liverwort Lunularia cruciata the criteria were not applicable (NA), since this species is not native to Slovakia. Currently, only two hornworts are known in Slovakia, of which Anthoceros agrestis is assessed as LC and Phaeoceros carolinianus as NT. The main factors of the liverwort and hornwort endangerment and retreat are anthropogenic changes in natural conditions and degradation of the ecosystems caused by agriculture, forestry, aquaculture, climatic changes, industry, and traffic pollution.

Incubation of eggs of three species of Chelid tortoises, and notes on their embryological development

1968 ◽  
Vol 16 (5) ◽  
pp. 749 ◽  
Author(s):  
J Goode ◽  
J Russell
Keyword(s):  
Individual Differences ◽  
The Other ◽  
Large Individual ◽  
Embryological Development ◽  
Natural Conditions ◽  
Early Embryos ◽  
Incubation Periods ◽  
The Mean ◽  
Main Factors ◽  
Chelodina Longicollis

Incubation periods and nest contents of three species of chelid tortoises in northern Victoria were recorded. Mean incubation period for eggs of Emydura macquari (Cuvier) was 75 days and average number of eggs per nest was 15.7; for Chelodina longicollis (Shaw), 138 days and 10.7 eggs per nest; for Chelodina expansa Gray, normally exceeding 324 days and 15.4 eggs per nest. In abnormal seasons C. expansa hatchlings may emerge from the nest in less than 193 days or more than 522 days after eggs were deposited. Eggs artificially incubated at 30�C consistently develop more quickly than those at lower temperatures under natural conditions. In the field nest temperatures closely approximate the mean daily air temperature. Embryos of C. expansa are tolerant to nest temperatures ranging from 4.9�C minimum to 29.6�C maximum. The other species are subject to variations of about 15 degC with up to 8.5 degC variation being recorded in 1 day. Development of early embryos approximated that recorded for cryptodire tortoises. However, there are large individual differences in the period of incubation needed for specific stages to be reached, especially between embryos of the short-necked and long-necked species of these pleurodire tortoises. It is suggested that differences in the anatomy of their eggs are the main factors in the different incubation periods between short-necked and long-necked species.

scholarly journals Principles of construction of single classification natural and the anthropogenic changed landscape complexes of Ukraine

2013 ◽  
pp. 339-347
Author(s):  
L. Sorokina
Keyword(s):  
Key Words ◽  
Complex Analysis ◽  
Anthropogenic Changes ◽  
Natural Properties ◽  
Main Factors ◽  
Landscape Map

Principles of classification of natural and anthropogenic changed landscape complexes of Ukraine are grounded on the basis of single criteria. The complex analysis of main factors of forming of natural properties of landscape complexes and character of anthropogenic changes of their components is conducted. He is founding for the construction of classification in that the natural and the anthropogenic changed landscape complexes of different grades are presented. The offered classification will be used for forming of structure of legend of middle-scale landscape map of Ukraine. Key words: landscape complexes, anthropogenic changes, classification.

scholarly journals NATURAL FEATURES OF THE ORCHID REFUGIUM ON THE TERRITORY OF THE NATURAL PARK "SAMAROVSKY CHUGAS"

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Petr Vladimirovich Bolshanik ◽  
Svetlana Borisovna Kusnezova ◽  
Diana Dmitrievna Karaseva
Keyword(s):  
Economic Activity ◽  
Surface Runoff ◽  
Natural Area ◽  
Natural Conditions ◽  
Anthropogenic Changes ◽  
Biological Resources ◽  
Natural Park ◽  
Protected Natural Area ◽  
Main Components ◽  
The City

The article discusses the natural conditions and biological resources, landscape features of the key territory of the natural Park "Samarovsky Chugas", located in the city of Khanty-Mansiysk. An overview of geographical studies of this region is given. The main components that influence the formation of natural complexes of a specially protected natural area are characterized. Special attention is paid to the characteristics of vegetation and the processes of anthropogenic changes in the landscapes of this key area. The main ways of vegetation transformation caused by economic activity and changes in the nature of surface runoff are highlighted. The ecological and geographical conditions of the Orchid refugium are characterized. The article substantiates the need to allocate the studied area as a zone with a protected regime within the territory of a natural Park.

Interconnection between the dynamics of natural conditions and populating of the Qarabag plain of Central Azerbaijan in the 4th millennium BC

2021 ◽  
pp. 7-20
Author(s):  
Khagani I. Almammadov ◽  
◽  
Elena N. Tagieva ◽  
Keyword(s):  
Construction Material ◽  
Economic Structure ◽  
Climatic Changes ◽  
Natural Conditions ◽  
Palynological Data ◽  
Atlantic Period

Climatic changes that took place in the 4th millennium BC (the second half of the Atlantic period, 6–5 thousand years ago) as revealed with the palynological data from the settlements of the Qarabag (Karabakh) plain of Central Azerbaijan caused direct changes in the lifestyle and economic structure of the Leylatepe culture carriers. Three consecutive changes in humidity were recorded, each of which coincides with a certain type of settlements, differing in their topography, quality of the construction material used, area and density of settlement.

Experimental chronic dermatophilosis

1980 ◽  
Vol 79 (1-3) ◽  
pp. 47-53
Author(s):  
D. Davis ◽  
M. Philpott
Keyword(s):  
Hypersensitivity Reaction ◽  
Immune Reaction ◽  
Climatic Changes ◽  
Delayed Hypersensitivity ◽  
Primary Role ◽  
Natural Conditions ◽  
Delayed Hypersensitivity Reaction

SynopsisThe effect of artificially induced climatic changes or arthropod bites on the development of experimental dermatophilosis lesions was examined. The lesions were produced following application ofDermatophilus congolensiszoospores to the skin of goats.When zoospores were applied to skin which had been treated with methanol, the resulting lesion healed rapidly. This observation contrasts with the disease under natural conditions, where lesions become chronic. There was no increase in the time for lesions to heal if the goats were sprayed with water to simulate rainfall. However, if a delayed hypersensitivity reaction to chlorodinitrobenzene was induced at the site of zoospore application (to simulate the host's response to an arthropod bite), the resulting lesion was morphologically similar to natural lesions and failed to heal so long as applications of the chemical were repeated.It is suggested that arthropods play a primary role in producing chronic lesions by inducing an immune reaction at the site of infection withD. congolensis.

The PFC2DSimulation of the Slope Stability

2014 ◽  
Vol 1065-1069 ◽  
pp. 240-243
Author(s):  
Zhi Qiang Lv ◽  
Bin Sheng Wang ◽  
Xiao Xue Zhang
Keyword(s):  
Risk Assessment ◽  
Scientific Method ◽  
Geological Structure ◽  
Particle Flow ◽  
Sliding Surface ◽  
Natural Conditions ◽  
Landslide Prediction ◽  
Factors Affecting ◽  
Landslide Stability ◽  
Main Factors

The main factors affecting landslide instability are landslides lithologic ,geological structure, topography, climate, hydrological conditions, earthquakes ,human and so on .The risk assessment of landslide is an effective method for analysis landslide stability ,but there has been little research for prediction of landslide in China .In this paper, particle flow procedures is used to analyze the landslide stability under natural conditions and forecast a possible landslide sliding surface ,and a scientific method will be provided for landslide prediction.

scholarly journals Benteng Kolonial Eropa di Pulau Makian dan Pulau Moti: Kajian atas Pola Sebaran Benteng di Wilayah Maluku Utara

2016 ◽  
Vol 11 (2) ◽  
pp. 97
Author(s):  
Syahruddin Mansyur
Keyword(s):  
Distribution Pattern ◽  
Early Period ◽  
Colonial Power ◽  
Natural Conditions ◽  
Geographical Factors ◽  
Main Factors ◽  
Spice Trade ◽  
The Relationship ◽  
Main Factor

In the early period of the spice trade, Makian Island Moti Island are the main source in the production of cloves. This condition is the main factor that attaracted tthe presence of Europeans that its influences still  can be traced recently. Evidence of the presence of European nations can be seen from the distribution of the fort in the island Makian and Moti Island. This research is intended to uncover the factors that underlie the formation of a network of fortifications in the two islands. Using the method of interpretation of the distribution pattern of the castle and the relationship between regions, this paper uncovered that the main factors the formation of a network of fortifications in the region is the natural conditions or geographical factors, so that consideration of the establishment of each fort associated with the monitoring of safety conditions, supervision of the marketing of cloves, as well as efforts to maintain the existence of a colonial power in the region.Pada periode awal perdagangan rempah-rempah, Pulau Makian dan Pulau Moti adalah sumber utama produksi cengkih. Hal inilah kemudian menjadi daya tarik kehadiran bangsa Eropa yang hingga saat ini masih dapat disaksikan jejak pengaruhnya. Bukti-bukti kehadiran bangsa Eropa tersebut dapat dilihat dari sebaran benteng yang ada di Pulau Makian dan Pulau Moti. Penelitian ini bertujuan untuk mengungkap faktor-faktor yang melatari terbentuknya jaringan perbentengan yang ada di kedua pulau tersebut. Melalui metode penafsiran terhadap pola sebaran benteng dan hubungan antar wilayah, tulisan ini berhasil mengungkap bahwa faktor utama terbentuknya jaringan perbentengan di wilayah ini adalah kondisi alam atau faktor geografis, sehingga pertimbangan atas pendirian setiap benteng berkaitan dengan pengawasan terhadap kondisi keamanan, pengawasan terhadap tata niaga cengkih, serta upaya untuk mempertahankan eksistensi kekuasan kolonial di wilayah ini.

scholarly journals Risk assessment of the potential ecological and geochemical hazard of the functioning of mining complexes

2019 ◽  
Vol 135 ◽  
pp. 01050
Author(s):  
Olga Krinochkina
Keyword(s):  
Mineral Deposits ◽  
Impact Factors ◽  
Published Data ◽  
Natural Conditions ◽  
The Core ◽  
Number Of Factors ◽  
Expert Assessments ◽  
Main Factors ◽  
Integral Assessment ◽  
Necessary And Sufficient

The aim of this work is to present a methodology for assessing the potential ecological and geochemical hazard of environmental pollution during the creation of new and functioning of existing mining complexes using the example of studying representative objects. The objects were selected according to the principle of the most saturated deposits, which serve as the core of mining complexes, toxic elements and the scale of mineralization, i.e. reserves of the deposits themselves. The methodology for assessing potential ecological and geochemical hazards is based on the following three principles: hierarchical approach; significance of the assessments; objectivity of information. The first involves the comparison of proportionate units, because the calculation of risk is carried out in points. The significance of the assessments was achieved by using those factors that can have a significant impact on the environment during the development of the deposit and determine the degree of sustainability of the natural environment when exploration territories. The objectivity of information was achieved by using the necessary and sufficient number of factors for assessing the risk of exploration and development of deposits and a significant amount of data obtained from the results of ecological and geochemical work with appropriate metrological support and laboratory analytical studies only in accredited centers. The methodology involves taking into account the totality of natural and technogenic environmental impact factors when developing solid mineral deposits, ranking them by importance and actually their integral assessment. As a result of the study of a large number of mining objects, according to our own and published data, by the method of expert assessments, the main factors of the influence of the developed deposits on the environment located in various natural conditions were established. Among these factors, 4 groups are distinguished: mineralogenic, landscape, hydrogeological and technogenic.

Behavioural cues in sex recognition by two species of nocturnal lizards: Eublepharis macularius and Paroedura pictus

1993 ◽  
Vol 14 (1) ◽  
pp. 71-82 ◽  
Author(s):  
Ch. Brillet
Keyword(s):  
Visual Signals ◽  
Agonistic Behaviour ◽  
Stimulus Animal ◽  
Natural Conditions ◽  
Sex Recognition ◽  
Eublepharis Macularius ◽  
Sexual Behaviours ◽  
Relative Value ◽  
Behavioural Patterns ◽  
Main Factors

AbstractAlthough several senses are used in agonistic and sexual behaviours by Eublepharis macularius and Paroedura pictus, different cues do not have the same relative value for males of the two species. Behavioural patterns observed in the presence of anesthetized conspecifics of both sexes differed considerably. The agonistic and sexual behaviours of E. macularius underwent progressive changes in reaction time and the frequency and duration of other behaviours. Aggressive behaviour eventually almost completely disappeared in P. pictus and was replaced by sexual behaviour, whatever the sex of the stimulus-animal ; the lizards then appeared to be incapable of distinguishing males from females. Agonistic behaviour of both species was sensitive to the immobility of the conspecific, although to different degrees. These data concur with observations carried out under more natural conditions; sex recognition criteria differ between the species. E. macularius relies primarily on chemical signals for sex recognition and sex-related behaviours. In P. pictus, which depends primarily on visual signals, conspecific posture and behaviour are the main factors responsible for both sexual and agonistic reactions.

scholarly journals The segetal flora of agricultural areas of the Bolimów Primeval Forest and its contemporary transformations

2013 ◽  
Vol 41 (2) ◽  
pp. 321-368
Author(s):  
A. Urszula Warcholińska
Keyword(s):  
Natural Conditions ◽  
Anthropogenic Changes ◽  
Primeval Forest ◽  
Agricultural Areas ◽  
Segetal Flora

The article provides a list of the localities of 268 species of weeds recorded in the years 1981-1985 on segetal habitats of the Bolimów Primeval Forest. In addition the general characteristics and an evaluation of anthropogenic changes in segetal flora in this area is presented. The analysis of collected and compiled materials has allowed the interrelationship existing between the composition of the segetal flora in the area under study and the natural conditions, state of agriculture and intensification of urban processes to be determined.

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