scholarly journals Exploring the Potential Distribution of Relic Trochodendron aralioides: An Approach Using Open-Access Resources and Free Software

Forests ◽  
2021 ◽  
Vol 12 (12) ◽  
pp. 1749
Author(s):  
Ching-An Chiu ◽  
Tetsuya Matsui ◽  
Nobuyuki Tanaka ◽  
Cheng-Tao Lin
Keyword(s):  
Open Access ◽  
South Korea ◽  
Open Source Software ◽  
Potential Distribution ◽  
Mountain Range ◽  
Good Discrimination ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Moisture Conditions ◽  
Access Data

Trochodendron aralioides Siebold & Zucc. is a relic tree that is discontinuously scattered across the mountainous areas of Japan, Taiwan, and South Korea, but the origin of T. aralioides in South Korea is still unclear and debated. To confirm its distribution and explore its origins, we constructed a streamlined framework to examine potential species distribution using multiple open access data and free and open-source software, as well as employing maximum entropy principles to predict the potential distribution of T. aralioides. The results showed reasonably good discrimination and were used to examine and discuss the explicit distribution of T. aralioides. The potential distribution of T. aralioides in Japan extended from Iriomote Island to approximately 37° N in Honshu on the Pacific Ocean side. In Taiwan, the potential distribution of T. aralioides was more common than in Japan. It occurred at 1500–3000 m a.s.l. across the Central Mountain Range and decreased toward the northern and southern tips, correlating to the descending pattern of the cloud belt. Thermal and moisture conditions were important factors to determine the distribution of T. aralioides. The potential distribution indicated that Jeju island had high potential as a habitat for T. aralioides, and that may indirectly imply its existence and origins in South Korea, as some researchers have noted.

Description of the female of Chelis ferghana Dubatolov, 1988, an endemic moth species of the Tien Shan Range in Central Asia (Lepidoptera: Erebidae: Arctiinae)

Zootaxa ◽  
2020 ◽  
Vol 4790 (1) ◽  
pp. 198-200
Author(s):  
VITALY M. SPITSYN ◽  
GRIGORY S. POTAPOV
Keyword(s):  
Pacific Ocean ◽  
Central Asia ◽  
Iberian Peninsula ◽  
Apical Part ◽  
Tien Shan ◽  
Mountain Range ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Moth Species ◽  
Morphological Differences

Seven Arctiine genera have recently been synonymized with the genus Chelis Rambur, 1866 using a comprehensive multi-locus phylogeny (Rönkä et al. 2016). The genus Chelis s. str. contains nine species, the ranges of which cover temperate and subtropical areas of Eurasia from the Iberian Peninsula to the Pacific Ocean coast (Dubatolov & de Vos 2010, Ortiz et al. 2016). Two species, i.e. Chelis ferghana Dubatolov, 1988 and C. strigulosa (Böttcher, 1905), are endemic to the Tien Shan Mountain Range. These taxa can be distinguished by morphological differences in the apical part of the valva. 

A Preliminary Investigation of the Flood Plain of the Rio Grande de Térraba, Costa Rica

1943 ◽  
Vol 9 (1) ◽  
pp. 74-88 ◽  
Author(s):  
Doris Stone
Keyword(s):  
Costa Rica ◽  
Short Distance ◽  
Preliminary Investigation ◽  
Flood Plain ◽  
Mountain Range ◽  
Parallel Chain ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Cordillera De Talamanca ◽  
Coastal Range

The Cordillera de Talamanca, the principal mountain range in southeastern Costa Rica, is a rugged chain which overlies, in part at least, an earlier volcanic mass, and is directly connected with the Chiriqui range of western Panama. The Pacific Ocean is, as the crow flies, a comparatively short distance from the Talamancan peaks. From the Rio Savegre in the southwest to the Rio Chiriqui Viejo in Panama runs a smaller parallel chain, known as the Pacific coastal range.

scholarly journals “An Eden that is practically uninhabited by humans”: Manipulating Wilderness in Managing Vancouver’s Drinking Water, 1880–1930

2017 ◽  
Vol 45 (1) ◽  
pp. 18-35
Author(s):  
Mark Kuhlberg
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Anthropogenic Activity ◽  
Human Consumption ◽  
Mountain Range ◽  
The Pacific ◽  
History Of ◽  
Precious Resource ◽  
The Pacific Ocean ◽  
The City

Vancouver is known internationally as one of the world’s most livable and beautiful cities, and its “natural” attributes are seen as being integral to what makes it so special. Nestled on a small plateau between the alluring beaches and dramatic shoreline of the Pacific Ocean and the Coast Mountain Range, the city has trumpeted its aesthetically stunning environment for over one century. Central to this message has been the fact that Vancouver’s drinking water supply is so clean that it has historically required no chemical or other treatment—besides a basic filtering—before it is fit for human consumption. Those who were initially responsible for administering the city’s water supply demonstrated most curious behaviour in carrying out their duties. To be sure, they exalted their water for its purity and broadcast this message to the world, believing as they did that such a precious resource could originate only in pristine wilderness that was as pleasing to the eye as it was free from human intrusions. As a result, they went to enormous lengths to guard the basins from which this water came from anthropogenic activity. Paradoxically, they were completely comfortable with undertaking a series of measures to re-engineer and manage the watersheds upon which they depended, an approach that included dumping tons of a deadly toxin on the local trees. All these steps were simply part of their efforts to enhance the bounty with which Providence had gifted them, and to them it remained pure and unsullied as a result. The early history of managing Vancouver’s drinking water thus represents an extraordinary instance in which civic boosters viewed their actions through a prism that blurred the line between the human and non-human worlds, and their story highlights how often our attempts to manage “nature” is prone to creating issues that are potentially more dangerous than the ones we are trying to solve.

Distribution and frequent occurrence of diatom taxa (Bacillariophyta) inhabiting warmer oceans in Seogwipo coast of Jeju Island, southernmost Korea

Phytotaxa ◽  
2021 ◽  
Vol 517 (1) ◽  
pp. 1-67
Author(s):  
GYEONGJE JOH
Keyword(s):  
South Korea ◽  
Western Indian Ocean ◽  
Local Area ◽  
Jeju Island ◽  
Diatom Flora ◽  
The Pacific ◽  
Local Areas ◽  
The Pacific Ocean ◽  
The Caribbean ◽  
First Time

The epiphytic diatoms attached to seaweeds and benthic diatom assemblages, have been collected along the Seogwipo coast in Jeju Island, South Korea. In the last three-year survey, 80 diatom taxa inhabiting warmer oceans have been found, including those in the tropical and subtropical regions such as the Pacific Ocean, the Caribbean Sea, the western Indian Ocean, and other warmer regions. These diatom flora shows a worldwide pattern that concentrated around the Tropic of Cancer. This survey of local areas reveals the existence of many rare or retrieved taxa that were not well known until recently. Furthermore, some of them, including Aulacodiscus affinis, Leudugeria janischii, Hyalosynedra lanceolata, Trachyneis velata var. ornata, Lyrella concilians have been reported for the first time since the first entry or haven been reported only once. Of the diatom flora described here, 48 taxa are new to South Korea and previously unrecorded in the local area.

scholarly journals Riparian or phreatophile woodland and shrubland vegetation in the Central Chilean biogeographic region: phytosociological study

2019 ◽  
Vol 40 (2) ◽  
pp. 243-258
Author(s):  
Javier Amigo Vázquez ◽  
Lorena Flores-Toro ◽  
Verónica Caballero-Serrano
Keyword(s):  
Floristic Composition ◽  
Woody Species ◽  
Mountain Range ◽  
The Pacific ◽  
Biogeographic Region ◽  
The Pacific Ocean ◽  
River Valleys ◽  
Alluvial Terraces ◽  
The Impact ◽  
Phytosociological Study

The Mediterranean territory in Chile is an extensive area whose natural vegetation has suffered the impact of man-made activities far more severely than anywhere else in the country. Its northernmost section (the Atacama and Coquimbo regions) is characterised by ombroclimates that range from ultra-hyperarid to arid, and by highly irregular river courses with limited spaces for phreatophilic vegetation that have been exploited by humans as fertile farmlands. However, in the river valleys of the Central Chilean biogeographic province, where the ombroclimate is at least semiarid, there may be permanent watercourses that drain from the Andean mountain range towards the Pacific Ocean that contain representations of riparian or phreatophilic vegetation linked to riverbanks or alluvial terraces, in spite of the inevitable human influence. We studied the most conspicuous plant communities with the most highly developed biomass in these riparian environments, namely willow stands dominated by Salix humboldtiana and accompanied by some autochthonous woody species, in order to clarify their floristic composition and their correct ordination within the syntaxonomy of Chilean vegetation. The data collected suggest the existence of a phytosociological association: Otholobio glandulosi-Salicetum humboldtianae ass. nova, as the majority association in the Central Chilean province.  Another possible association which replaces this (Baccharido salicifoliae-Myrceugenietum lanceolatae prov.) is also proposed in the transition to a humid ombroclimate and Temperate macrobioclimate. The floristic contents of these Chilean communities are compared with other associations dominated by Salix humboldtiana described for other territories bordering Chile: Argentina, Bolivia and Peru. However, given that they are all located in a Tropical macrobioclimate and their companion flora is therefore clearly different from the flora present in the Chilean communities, we propose the creation of a new phytosociological class to include these syntaxonomically: Mayteno boariae-Salicetea humboldtianae class. nova. This work also ascribes the association Tessario absinthioidis-Baccharidetum marginalis (representing a prior dynamic stage to Otholobio glandulosi-Salicetum humboldtianae) to the class Tessario integrifoliae-Baccharidetea salicifoliae.

scholarly journals First insights on Lake General Carrera/Buenos Aires/Chelenko water balance

2009 ◽  
Vol 22 ◽  
pp. 173-179 ◽  
Author(s):  
G. Zambrano ◽  
R. Abarca del Rio ◽  
J.-F. Cretaux ◽  
B. Reid
Keyword(s):  
Water Balance ◽  
Buenos Aires ◽  
Hydrological Cycle ◽  
Lake Basin ◽  
Mountain Range ◽  
The Andes ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Tectonic Origin

Abstract. Lago General Carrera (Chile) also called Lago Buenos Aires (Argentina) or originally Chelenko by the native habitants of the region is located in Patagonia on the Chilean-Argentinean border. It is the largest lake in Chile with a surface area of 1850 km2. The lake is of glacial/tectonic origin and surrounded by the Andes mountain range. The lake drains primarily to the Pacific Ocean to the west, through the Baker River (one of Chile's largest rivers), and intermittently eastward to the Atlantic Ocean. We report ongoing results from an investigation of the seasonal hydrological cycle of the lake basin. The contribution by river input through snowmelt from the Andes is of primary importance, though the lack of water input by ungaged rivers is also critical. We present the main variables involved in the water balance of Lake General Carrera/Buenos Aires/Chelenko, such as influent and effluent river flows, precipitation, and evaporation, all this based mostly in in-situ information.

scholarly journals Determination of the Soiling Impact on Photovoltaic Modules at the Coastal Area of the Atacama Desert

Energies ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3819
Author(s):  
Douglas Olivares ◽  
Pablo Ferrada ◽  
Jonathan Bijman ◽  
Sebastián Rodríguez ◽  
Mauricio Trigo-González ◽  
...  
Keyword(s):  
Coastal Area ◽  
Particle Interaction ◽  
Atacama Desert ◽  
Mountain Range ◽  
Marine Aerosols ◽  
Dust Density ◽  
Surface Dust ◽  
The Pacific ◽  
Pv Modules ◽  
The Pacific Ocean

With an elevation of 1000 m above sea level, once the coastal mountain range is crossed, the Atacama Desert receives the highest levels of solar radiation in the world. Global horizontal irradiations over 2500 kWh/(m2 year) and a cloudiness index below 3% were determined. However, this index rises to 45% in the coastal area, where the influence of the Pacific Ocean exists with a large presence of marine aerosols. It is on the coastal area that residential photovoltaic (PV) applications are concentrated. This work presents a study of the soiling impact on PV modules at the coastline of Atacama Desert. The current–voltage characteristics of two multicrystalline PV modules exposed to outdoor conditions were compared, while one of them was cleaned daily. Asymptotic behavior was observed in the accumulated surface dust density, over 6 months. This behavior was explained by the fact that as the glass became soiled, the probability of glass-to-particle interaction decreased in favor of a more likely particle-to-particle interaction. The surface dust density was at most 0.17 mg·cm−2 per month. Dust on the module led to current losses in the range of 19% after four months, which in turn produced a reduction of 13.5%rel in efficiency.

On the Pacific Ocean regime shift

2001 ◽  
Vol 28 (19) ◽  
pp. 3721-3724
Author(s):  
Cathy Stephens
Keyword(s):  
Pacific Ocean ◽  
Regime Shift ◽  
The Pacific ◽  
The Pacific Ocean

Russia’s Market of Mergers and Acquisitions: Stages, Features and Prospects

2009 ◽  
pp. 23-45 ◽  
Author(s):  
A. Radygin
Keyword(s):  
Open Access ◽  
Mergers And Acquisitions ◽  
Corporate Control ◽  
Active Role ◽  
Data Bases ◽  
2008 Financial Crisis ◽  
Legal Norms ◽  
Role Of The State ◽  
Access Data

The article deals with key tendencies in the development of Russia’s market of mergers and acquisitions in the first decade of the 21st century. Quantitative parameters are analyzed by using available in the open access data bases for the years 2003-2008 taking into consideration new tendencies relating to 2008 financial crisis. An active role of the state played in the market of corporate control represents an important factor. Special attention is given to issues of development of Russia’s system of legal norms regulating the market of mergers and acquisitions.

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