scholarly journals Natural and anthropogenic transformation of geosystems of Tunkinsky national park: identification and mapping

2021 ◽  
Vol 885 (1) ◽  
pp. 012043
Author(s):  
Zh V Atutova
Keyword(s):  
Debris Flows ◽  
National Park ◽  
Eastern Siberia ◽  
Dynamic Features ◽  
Dynamic Nature ◽  
Anthropogenic Transformation ◽  
Altitudinal Belt ◽  
Main Factors ◽  
River Valleys ◽  
Pyrogenic Transformation

Abstract The paper focuses on the specifics of landscape medium scale mapping employing traditional methods. We selected a key site in Tunkinsky National Park (Republic of Buryatia) and the Tunkinskaya depression located within it and its mountain framing (south of Eastern Siberia) to display the modern structural and dynamic features of the geosystem functioning. The map compiled at a scale of 1 : 100 000 illustrates the differentiation into categories of landscape structures by types of altitudinal-belt conditions of the natural environment, differing in morphological and phytocenotic properties, as well as the nature of natural-anthropogenic transformation. The main factors of landscape discreteness are morphological features of the surface structure of the intermontane territories; the complexes with natural vegetation and their derivative biocenoses, formed as a result of agricultural and pyrogenic transformation, reflected the dynamic nature of the geosystem functioning. The complexes have been formed in river valleys due to debris flows and are assigned to variable states.

Etosha and the Kaokoveld: Problems of Conservation in Namibia

1990 ◽  
Vol 17 (4) ◽  
pp. 351-354 ◽  
Author(s):  
John L. Cloudsley-Thompson
Keyword(s):  
National Park ◽  
Striking Feature ◽  
Endemic Plants ◽  
The South ◽  
Factors Affecting ◽  
Animal Populations ◽  
Large Numbers ◽  
Main Factors ◽  
Drinking Places ◽  
Natural Springs

The mountainous Kaokoveld of northwestern Namibia contains numerous endemic plants and animals whose ranges, in many cases, extend into the Etosha National Park, an area extremely rich in game. Etosha Pan, the most striking feature of the Park, is bordered on the South by natural springs and artificial waterholes. These provide drinking places for the animals which congregate in large numbers and cause overgrazing and browsing pressure in the area. Migration to regions beyond the Park boundary is prevented by an 850 km-long game-proof fence. The main factors affecting animal populations are anthrax and poaching. Even so, the culling of Elephants becomes necessary from time to time, and the sale of ivory and other products helps to finance the operation of the Park.

scholarly journals Debris-flow activity in five adjacent gullies in a limestone mountain range

2015 ◽  
Vol 42 (1) ◽  
Author(s):  
Klaus Schraml ◽  
Markus Oismüller ◽  
Markus Stoffel ◽  
Johannes Hübl ◽  
Roland Kaitna
Keyword(s):  
Debris Flow ◽  
Debris Flows ◽  
National Park ◽  
Regional Scale ◽  
Field Investigation ◽  
Mountain Range ◽  
Sediment Sources ◽  
Aerial Vehicle ◽  
Flow Activity ◽  
Local Variability

Abstract Debris-flows are infrequent geomorphic phenomena that shape steep valleys and can repre-sent a severe hazard for human settlements and infrastructure. In this study, a debris-flow event chro-nology has been derived at the regional scale within the Gesäuse National Park (Styria, Austria) using dendrogeomorphic techniques. Sediment sources and deposition areas were mapped by combined field investigation and aerial photography using an Unmanned Aerial Vehicle (UAV). Through the analysis of 384 trees, a total of 47 debris-flows occurring in 19 years between AD 1903 and 2008 were identified in five adjacent gullies. Our results highlight the local variability of debris-flow activi-ty as a result of local thunderstorms and the variable availability of sediment sources.

The Carmel Fire and Its Conservation Repercussions

1997 ◽  
Vol 7 (4) ◽  
pp. 277 ◽  
Author(s):  
UN Safriel
Keyword(s):  
Nature Conservation ◽  
Interdisciplinary Research ◽  
National Park ◽  
Biosphere Reserve ◽  
Fire Prevention ◽  
Public Concern ◽  
Dynamic Nature ◽  
Minimal Intervention ◽  
Conservation And Management

The forest fire in Mt. Carmel National Park in Israel in 1989 resembled the 1988 fire in Yellowstone Park in that public concern motivated the authorities to appoint professional committees to assess rehabilitation options and fire policies. The committees re-evaluated the goals and practices of nature conservation and management in protected areas, in a much broader context than just fire prevention. The recognition of the dynamic nature of ecosystems, the low predictability of their behaviour, and the role of fire as a disturbance agent that promotes biodiversity, contributed to recommendations of minimal intervention, allowing self-regeneration. The Israeli committee commissioned an interdisciplinary-research program designed to direct post-fire and fire-reduction management, and provide insights for planning for the region as a biosphere reserve. The results of this three-year program are reported in this issue.

Distribution of debris flows in Glacier National Park, Montana, U.S.A.

2008 ◽  
Vol 5 (4) ◽  
pp. 318-326 ◽  
Author(s):  
Forrest D. Wilkerson ◽  
Ginger L. Schmid
Keyword(s):  
Debris Flows ◽  
National Park ◽  
Glacier National Park

scholarly journals Water mites (Acari, Hydrachnidia) of riparian springs in a small lowland river valley: what are the key factors for species distribution?

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e4797 ◽  
Author(s):  
Andrzej Zawal ◽  
Robert Stryjecki ◽  
Edyta Buczyńska ◽  
Paweł Buczyński ◽  
Joanna Pakulnicka ◽  
...  
Keyword(s):  
Positive Impact ◽  
Mite Species ◽  
River Valley ◽  
Conservation Strategies ◽  
Lowland River ◽  
Water Mites ◽  
Water Mite ◽  
Anthropogenic Transformation ◽  
River Valleys ◽  
The Impact

This paper examines the impact of disturbance factors—flooding and intermittency—on the distribution of water mites in the riparian springs situated in the valley of a small lowland river, the Krąpiel. The landscape factors and physicochemical parameters of the water were analysed in order to gain an understanding of the pattern of water mite assemblages in the riparian springs. Three limnological types of springs were examined (helocrenes, limnocrenes and rheocrenes) along the whole course of the river and a total of 35 water mite species were found. Our study shows that flooding influences spring assemblages, causing a decrease in crenobiontic water mites in flooded springs. The impact of intermittency resulted in a high percentage of species typical of temporary water bodies. Surprisingly, the study revealed the positive impact of the anthropogenic transformation of the river valley: preventing the riparian springs from flooding enhances the diversity of crenobiontic species in non-flooded springs. In the conclusion, our study revealed that further conservation strategies for the protection of the riparian springs along large rivers would take into account ongoing climatic changes and possible the positive impact of the anthropogenic transformation of river valleys.

scholarly journals An Optimal Enhancement of the Dynamic Features of Recommender Systems

2019 ◽  
Vol 8 (2S4) ◽  
pp. 51-55
Keyword(s):  
Data Mining ◽  
Big Data ◽  
Recommender Systems ◽  
Data Analytics ◽  
Recommendation Systems ◽  
Big Data Analytics ◽  
The Internet ◽  
User Requirements ◽  
Dynamic Features ◽  
Dynamic Nature

Recommendation systems come under the domain of Data mining and Big Data analytics. It is useful tool that is used to predict the ratings or preferences of a user from a pool of resources. The preferences of user are dynamic in nature. The immeasurable usage of internet is having a great impact on the way we deal our lives and communicate with each other. As a result, the requirements of user browsing the internet are changing radically. Recommender Systems (RSs) provide a technology that helps users in finding relevant or preferential information among the pool of information using internet. This paper puts forward not only the issues related to the dynamic nature of user’ requirements but also the changes in the systems’ contents. The Recommendation Systems which involves the above stated issues are termed as Dynamic Recommender Systems (DRSs). This paper first defines the concept of DRS and then explores the various parameters that is taken into account in developing a DRS. This paper also discusses the scope of contributions in this field and concludes citing in possible extensions that can improve the dynamic qualities of recommendation systems in future.

Seasonal Patterns in Bait Consumption by Feral Pigs (Sus Scrofa) in the Hill Country of South-Eastern Australia.

1993 ◽  
Vol 20 (5) ◽  
pp. 637 ◽  
Author(s):  
JC Mcilroy ◽  
EJ Gifford ◽  
RI Forrester
Keyword(s):  
Sus Scrofa ◽  
National Park ◽  
Seasonal Patterns ◽  
Australian Capital Territory ◽  
Feral Pigs ◽  
Hill Country ◽  
Eastern Australia ◽  
Main Factors ◽  
Autumn And Winter ◽  
The Hill

Both fermenting wheat and bran/pollard pellets were readily accepted as bait throughout the year by feral pigs (Sus scrofa) in Namadgi National Park, Australian Capital Territory. Birds mainly ate wheat bait, particularly during winter. Other animals occasionally fed on both types of bait, mainly during autumn and winter. Covering baits with forest-floor litter did not significantly affect their discovery and consumption by pigs or by other animals. The proximity of the pigs to the bait line and their appetite for bait appeared to be the main factors responsible for seasonal differences in bait consumption. Trail-baiting campaigns against pigs in similar hill country areas are likely to be more effective during late autumn than other seasons because more pigs are likely to be close to the trails then and more quickly find and eat greater quantities of bait.

Saving the Dammed

2019 ◽  
Author(s):  
Ellen Wohl
Keyword(s):  
Ecosystem Services ◽  
Northern Hemisphere ◽  
Nitrate Reduction ◽  
National Park ◽  
Flood Control ◽  
Rocky Mountain ◽  
Wetland Loss ◽  
Rocky Mountain National Park ◽  
River Valleys

The ability of beavers to create an abundant habitat for a diverse array of plants and animals has been analyzed time and again. The disappearance of beavers across the northern hemisphere, and what this effects, has yet to be comprehensively studied. Saving the Dammed analyzes the beneficial role of beavers and their dams in the ecosystem of a river, focusing on one beaver meadow in Colorado. In her latest book, Ellen Wohl contextualizes North St. Vrain Creek by discussing the implications of the loss of beavers across much larger areas. Saving the Dammed raises awareness of rivers as ecosystems and the role beavers play in sustaining the ecosystem surrounding rivers by exploring the macrocosm of global river alteration, wetland loss, and the reduction in ecosystem services. The resulting reduction in ecosystem services span things such as flood control, habitat abundance and biodiversity, and nitrate reduction. Allowing readers to follow her as she crawls through seemingly impenetrable spaces with slow and arduous movements, Wohl provides a detailed narrative of beaver meadows. Saving the Dammed takes readers through twelve months at a beaver meadow in Colorado's Rocky Mountain National Park, exploring how beavers change river valleys and how the decline in beaver populations has altered river ecosystems. As Wohl analyzes and discusses the role beavers play in the ecosystem of a river, readers get to follow her through tight, seemingly impenetrable, crawl spaces as she uncovers the benefit of dams.

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