Field data and worldwide literature review reveal that alien crayfish mitigate the predation impact of the American bullfrog on native amphibians

2018 ◽  
Vol 28 (6) ◽  
pp. 1465-1475 ◽  
Author(s):  
Alessandra Maria Bissattini ◽  
Vincenzo Buono ◽  
Leonardo Vignoli
Keyword(s):  
Literature Review ◽  
Field Data ◽  
American Bullfrog ◽  
Predation Impact

scholarly journals Checklist of amphibians of Nayarit, western Mexico

Check List ◽  
2014 ◽  
Vol 10 (6) ◽  
pp. 1336 ◽  
Author(s):  
Victor H. Luja ◽  
Ivan T. Ahumada-Carrillo ◽  
Paulino Ponce-Campos ◽  
Elsa Figueroa-Esquivel
Keyword(s):  
Literature Review ◽  
The State ◽  
Lithobates Catesbeianus ◽  
Western Mexico ◽  
American Bullfrog ◽  
International Laws ◽  
Near Future ◽  
Special Protection

Nayarit is one of the Mexican states where less has been published regarding the fauna of amphibians. The aim of this work was to generate a list of amphibians of Nayarit through literature review and fieldwork. The amphibian fauna of Nayarit consists of 37 species, belonging to 21 genera, 10 families, and two orders. Among these 37 species, 36 are native, 21 are endemic to Mexico, and one is exotic (the American bullfrog Lithobates catesbeianus). In total, nine species are under the category of “Special Protection” and one as “Endangered” by Mexican laws and four (one as “Endangered” and three as “Vulnerable”) under international laws of protection. In the near future, our expectation is that more species will be added to the list of species of amphibians in Nayarit, as more fieldwork remains to be done in some remote and unexplored areas of the state.

scholarly journals Geologi situs paleolitik das kikim, kabupaten lahat, provinsi sumatra selatan.

KALPATARU ◽  
2018 ◽  
Vol 26 (2) ◽  
pp. 73
Author(s):  
Muhammad Fadhlan Syuaib Intan
Keyword(s):  
Literature Review ◽  
Research Method ◽  
Field Data ◽  
Research Area ◽  
Geological Structure ◽  
Strike Slip ◽  
Survey Analysis ◽  
Geological Structures ◽  
Geological Information ◽  
Surface Geology

Lahat is one of the districts within the province of South Sumatra, the site of research, saving many cultural remains, one of them from the paleolithic period, which for so long received no attention from environmental researchers. This is the basis of the main problems that cover geology in general. Therefore, the purpose of this study is to conduct surface geology mapping in general as an effort to present geological information, while the aim is to know the geomorphological aspects, stratigraphy, geological structures associated with existence in paleolithic sites of research area. The research method begins with literature review, survey, analysis, and interpretation of field data. Environmental observations provide information about the landscape consisting of terrestrial morphology units, weak corrugated morphology units, and strong corrugated morphology units. The rivers are in the Old River, the Adult River, and Periodic /Permanent River. The constituent rocks are Gumai Formation, Benakat Air Formation, Muara Enim Formation, Kasai Formation, and alluvial. The geological structure is a strike slip fault that flows northeast-southeast. The study was conducted on the Kikim River, Lingsing River, and Pangi River, which stretches from east to west with direction from south to north. Exploration in the Kikim Basin, Lahat District has managed to find 30 paleolithic sites.Keywords: Geology, Pleistocene, Paleolithic, Open SiteABSTRAKLahat merupakan salah satu kabupaten dalam Provinsi Sumatra Selatan yang menjadi lokasi penelitian, menyimpan banyak tinggalan budaya, salah satunya dari masa paleolitik, yang sekian lama tak mendapat perhatian dari para peneliti lingkungan. Hal inilah yang dijadikan dasar permasalahan utama yang mencakup geologi secara umum. Oleh sebab itu, maksud penelitian ini dalah untuk melakukan pemetaan geologi permukaan secara umum sebagai salah satu upaya untuk menyajikan informasi geologi, sedangkan tujuannya adalah untuk mengetahui aspek-aspek geomorfologi, stratigrafi, struktur geologi yang dikaitkan dengan keberadaan di situs-situs paleolitik wilayah penelitian. Metode penelitian diawali dengan kajian pustaka, survei, analisis, dan interpretasi data lapangan. Pengamatan lingkungan memberikan informasi tentang bentang alamnya yang terdiri dari satuan morfologi dataran, satuan morfologi bergelombang lemah, dan satuan morfologi bergelombang kuat. Sungainya berstadia Sungai Tua, Sungai Dewasa-Tua, dan Sungai Periodik/Permanen. Batuan penyusun adalah Formasi Gumai, Formasi Air Benakat, Formasi Muara Enim, Formasi Kasai, dan aluvial. Struktur geologi berupa patahan geser yang berarah timur laut-tenggara. Penelitian dilaksanakan di Sungai Kikim, Sungai Lingsing, dan Sungai Pangi, yang membentang dari timur ke barat dengan arah aliran dari selatan ke utara. Eksplorasi di DAS Kikim, Kabupaten Lahat telah berhasil menemukan 30 situs paleolitik. Kata kunci: Geologi, Plistosen, Paleolitik, Situs Terbuka

Perspective on the Tidal Bore: Background and Initiation

2012 ◽  
Author(s):  
S. David Graber
Keyword(s):  
Literature Review ◽  
Field Data ◽  
Historical Context ◽  
Companion Paper ◽  
Extensive Literature ◽  
Scientific Interest ◽  
Tidal Bore ◽  
Extensive Literature Review ◽  
Tidal Bores ◽  
The Subject

Tidal bores have been the subject or cause of legend, poetry, recreation, tourism, shipping disasters, and scientific interest for centuries. They pose interesting theoretical questions for the engineer. Introductory details are presented regarding the remarkable tidal bore phenomenon, including discussion of the tidal bore in various locations and a recent photograph taken by the writer of the bore on China’s Qiantang River. A supplemental tabular summary is presented based on an extensive literature review. A simplified theory based on monoclinal rising waves is developed for the initiation of the tidal bore. The theory elucidates the mechanisms of the tidal bore more clearly and completely than more complex theories. Early studies of the tidal bore are cited and discussed in historical context. The intention is to provide greater understanding of the tidal bore for a broad set of readers. The theory is favorably compared to rectangular flume data and to all field data available to the writer. A companion paper builds on the present one by addressing additional features of the tidal bore.

scholarly journals Snow Interception Modeling: Isolated Observations have led to Land Surface Models Lacking Appropriate Climate Sensitivities

2021 ◽  
Author(s):  
Jessica Lundquist ◽  
Susan Dickerson-Lange ◽  
Ethan Gutmann ◽  
Tobias Jonas ◽  
Cassie Lumbrazo ◽  
...  
Keyword(s):  
Literature Review ◽  
Land Surface ◽  
Field Data ◽  
Forest Cover ◽  
Field Experiments ◽  
Field Measurements ◽  
Hydrologic Model ◽  
Force Balance ◽  
Liquid Form ◽  
Study Results

When formulating a hydrologic model, scientists rely on parameterizations of multiple processes based on field data, but literature review suggests that more frequently people select parameterizations that were included in pre-existing models rather than re-evaluating the underlying field experiments. Problems arise when limited field data exist, when “trusted” approaches do not get reevaluated, and when processes fundamentally change in different environments. The physics and dynamics of snow interception by conifers, including both loading and unloading of snow, is just such a case. The most commonly used interception parameterization is based on data from four trees from one site, but field study results are not directly transferable between environments. The process varies dramatically between locations with relatively warmer versus colder winters. Here, we combine a comprehensive literature review with a model to demonstrate essential improvements to model representations of snow interception. We recommend that, as a first and essential step, all models include increased loading due to increased adhesion and cohesion when temperatures rise from -3 and 0°C. The commonly used parameters of a fixed maximum value for loading and an e-folding time for unloading are not supported by observations or physical understanding and are not necessary to reproduce observations. In addition to unloading based on physical processes, such as wind or canopy warming, all models must represent melting of in-canopy snow so that it can be unloaded in liquid form. As a second step, we propose field experiments across climates and forest types to investigate: a) a representation of the force balance between adhesion and cohesion versus gravity for both interception efficiency and rates of unloading, b) wind effects during and between storms, and c) lubrication when snow melts. For greatest impact, this framework requires dedicated field measurements. These processes are essential for models to accurately represent the impacts of dynamically changing forest cover and snow cover on both global albedo and water supplies.

scholarly journals Geologi Situs Menapo Ujung Tanjung II, Kabupaten Muaro Jambi, Provinsi Jambi

Tumotowa ◽  
2020 ◽  
pp. 27-38
Author(s):  
Fadhlan Intan
Keyword(s):  
Surface Water ◽  
Literature Review ◽  
Cultural Heritage ◽  
Research Method ◽  
Field Data ◽  
Geological Structure ◽  
Surface Water And Groundwater ◽  
Geological Conditions ◽  
Geological Information ◽  
Surface Geology

Menapo Unjung Tanjung II holds a cultural heritage, from the Hindu-Buddhist period which has not received the attention of environmental researchers. This is the main problem that covers general geological conditions. Therefore, the purpose of this research is to map surface geology in general as an effort to present geological information, while the aim is to find out the geomorphological, stratigraphic, geological structure, and hydrological aspects. The research method begins with a literature review, survey, and interpretation of field data. Environmental observations provide information about the landscape including the terrain morphology unit. Trellis-patterned, rectangular river, old mature river, and periodic/permanent river. The constituent rocks are alluvial, and the Kasai Formation. Geological structure in the form of anticline and syncline. The hydrology consists of surface water and groundwater. Research in Menapo Ujung Tanjung II has succeeded in finding the structure of bricks, which are thought to function as waterways. This assumption cannot be justified scientifically.

Women's status in disasters: A gap between experts’ desk

2017 ◽  
Vol 15 (2) ◽  
pp. 77 ◽  
Author(s):  
Sanaz Sohrabizadeh, PhD
Keyword(s):  
Literature Review ◽  
Natural Disasters ◽  
International Research ◽  
Field Data ◽  
Field Survey ◽  
International Agreements ◽  
Women's Status ◽  
Research Papers ◽  
Women’S Status

Although international agreements have achieved significant milestones in the improvement of women's status, experiences from the fields show a discrepancy between words and actions. The aim of this brief communication was to identify the gap between experts’ perceptions and the findings of a large qualitative field survey on women's status in the recent natural disasters of Iran. A total of 10 experts were asked to fill a checklist, which consisted of the concepts extracted from field data. The range of agreement between experts’ perceptions and field data was between 40 and 100 percent. In conclusion, although literature review and international research papers can provide appropriate information for both experts and managers, meeting the various needs of women living in the affected regions requires field-based surveys.

Updated checklist and distribution of the diaptomid copepods (Copepoda, Calanoida, Diaptomidae) of China

Crustaceana ◽  
2018 ◽  
Vol 91 (3) ◽  
pp. 335-352
Author(s):  
Huiming Li ◽  
Henri J. Dumont ◽  
Bo-Ping Han ◽  
Qiuqi Lin
Keyword(s):  
Species Richness ◽  
Literature Review ◽  
Geographical Distribution ◽  
Field Data ◽  
Taxonomic Status ◽  
Original Field ◽  
Diaptomid Copepods

We present an updated checklist of the Diaptomidae of China, based on a literature review and on original field data from all over China during 2012-2016. A total of 19 genera and 56 species have been recorded. Neutrodiaptomus has the highest species richness (10 species), followed by Arctodiaptomus (9 species). Only one species each of Eudiaptomus, Mixodiaptomus, Eodiaptomus, Dentodiaptomus, Dolodiaptomus, Allodiaptomus, Karstodiaptomus, Metadiaptomus and Paradiaptomus was found. The taxonomic status of 16 species was revised: one wrongly attributed genus, Argyrodiaptomus, was corrected to Sinodiaptomus. First records for China include Arctodiaptomus parvispineus and one new cave-dwelling genus, Karstodiaptomus, is added. One Latin name from Shen & Sung’s book (1979) is corrected. Remarks on nomenclature and taxonomic issues are supplemented with information on the geographical distribution of the various species within China.

scholarly journals Simulation-Based Connected and Automated Vehicle Models on Highway Sections: A Literature Review

2019 ◽  
Vol 2019 ◽  
pp. 1-14 ◽  
Author(s):  
Wooseok Do ◽  
Omid M. Rouhani ◽  
Luis Miranda-Moreno
Keyword(s):  
Literature Review ◽  
Field Data ◽  
Adaptive Cruise Control ◽  
Intelligent Vehicles ◽  
Intelligent Vehicle ◽  
Manufacturing Companies ◽  
Cruise Control ◽  
Car Following ◽  
Automated Vehicle ◽  
Simulation Based

This study provides a literature review of the simulation-based connected and automated intelligent-vehicle studies. Media and car-manufacturing companies predict that connected and automated vehicles (CAVs) would be available in the near future. However, society and transportation systems might not be completely ready for their implementation in various aspects, e.g., public acceptance, technology, infrastructure, and/or policy. Since the empirical field data for CAVs are not available at present, many researchers develop micro or macro simulation models to evaluate the CAV impacts. This study classifies the most commonly used intelligent-vehicle types into four categories (i.e., adaptive cruise control, ACC; cooperative adaptive cruise control, CACC; automated vehicle, AV; CAV) and summarizes the intelligent-vehicle car-following models (i.e., Intelligent Driver Model, IDM; MICroscopic Model for Simulation of Intelligent Cruise Control, MIXIC). The review results offer new insights for future intelligent-vehicle analyses: (i) the increase in the market-penetration rate of intelligent vehicles has a significant impact on traffic flow conditions; (ii) without vehicle connections, such as the ACC vehicles, the roadway-capacity increase would be marginal; (iii) none of the parameters in the AV or CAV models is calibrated by the actual field data; (iv) both longitudinal and lateral movements of intelligent vehicles can reduce energy consumption and environmental costs compared to human-driven vehicles; (v) research gap exists in studying the car-following models for newly developed intelligent vehicles; and (vi) the estimated impacts are not converted into a unified metric (i.e., welfare economic impact on users or society) which is essential to evaluate intelligent vehicles from an overall societal perspective.

scholarly journals Suggestion of Measurement Management Criteria for Soil Slope Failure Based on Displacement

2021 ◽  
Vol 21 (1) ◽  
pp. 251-260
Author(s):  
Sun-Gyu Choi ◽  
Jae-Wook Suk ◽  
Hyang-Seon Jeong
Keyword(s):  
Literature Review ◽  
Field Data ◽  
Large Scale ◽  
Slope Failure ◽  
Small Scale ◽  
Soil Slope ◽  
Short Term ◽  
Literature Reviews ◽  
Under Construction

This paper describes the Measurement Management Criteria (MMC) of a soil slope failure based on displacement using literature reviews, small-scale experiments, large-scale experiments, and field data. Two types of measurement management criteria were developed, i.e., short-term criteria for slopes under construction or requiring urgent measurements, and long-term criteria for slopes under continuous management. First, the measurement criteria for the short term were determined based on small- and-large scale experiments, and were determined to be “1 mm/min for the watch level,” “4 mm/min for the caution level,” and “21 mm/min for the alert level.” Next, the criteria for the long term were determined through a literature review and field data, and were “2 mm/day for the watch level,” “8 mm/day for the caution level,” and “56 mm/day for the alert level”.

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