scholarly journals Distribution of oviposition sites and environmental characteristics around these sites of Tokyo salamander, Hynobius tokyoensis, at paddy fields of valley bottom in northeast region of Chiba Prefecture.

2014 ◽  
Vol 16 (2) ◽  
pp. 119-125
Author(s):  
Takaharu NATSUMEDA ◽  
Tomoya OHGI
Keyword(s):  
Paddy Fields ◽  
Environmental Characteristics ◽  
Valley Bottom ◽  
Northeast Region ◽  
Chiba Prefecture ◽  
Oviposition Sites

scholarly journals Evaluation of Habitat Potential for Field Gudgeon in Drainage Canals Using Habitat Suitability Indexes: a Case Study of Yatsu Paddy Fields, Chiba Prefecture, Japan

2008 ◽  
Vol 42 (1) ◽  
pp. 57-62 ◽  
Author(s):  
Noriyuki KOIZUMI ◽  
Takeshi TAKEMURA ◽  
Shuji OKUSHIMA ◽  
Atsushi MORI ◽  
Shu EBIHARA
Keyword(s):  
Habitat Suitability ◽  
Paddy Fields ◽  
Chiba Prefecture ◽  
Drainage Canals

scholarly journals COMPARTIMENTAÇÃO DO RELEVO NO MUNICÍPIO DE MANOEL VIANA - RS

2013 ◽  
Vol 35 (1) ◽  
pp. 64
Author(s):  
Anderson Augusto Volpato Sccoti ◽  
Luis Eduardo de Souza Robaina ◽  
Romário Trentin
Keyword(s):  
Sea Level ◽  
River Basin ◽  
Sedimentary Rocks ◽  
Rio Grande ◽  
Rio Grande Do Sul ◽  
Valley Bottom ◽  
Northeast Region ◽  
Steep Slopes

The Manoel Viana municipality is located in western Rio Grande do Sul, in Ibicui River Basin. The altitudes are among the range of 80 m and120 m above the sea level, corresponding to 46% of the total altitude, and 120 m and 180 m above the sea level, which has approximately 49% ofthe total. The lowest altitude is approximately 60 m and it is along the plain of the Ibicuí river, and the highest altitude is approximately 240m,in the northeast region of Manoel Viana. The predominant declivity distance is less of 2%, with more than half the study area 56%, distributedat all altitudes, being characteristic of the plain reliefs, the broad interfluves and the tops of hills and hillock. The landforms can be classifiedas: ramps of valley bottom characterized by presenting a slope less than 2% occurring among the major drainages; forms of gently rolling hillswith slopes between 2% and 5% and wide lengths; forms of strongly wavy hills characterized by slopes between 5 and 15% that occur in thetransition area between two levels of dissection; isolated mounts characterized by amplitudes lower than 100m and steep slopes, associated withthe most resistant portions to erosion; and associated to mounts, forms of hills which are called sedimentary rocks from the formation of Guaráand Botucatu; the forms of mounts and hills associated to the strongly wavy hills, which characterize by slopes greater than 15%, occurring thetransition of the first to a second level of dissection.

scholarly journals Stream macroalgal flora from Parnaíba River Basin, Brazil: reducing Wallacean shortfall

2019 ◽  
Vol 19 (2) ◽  
Author(s):  
Marina Ramos Auricchio ◽  
Richard Wilander Lambrecht ◽  
Cleto Kaveski Peres
Keyword(s):  
River Basin ◽  
Biological Diversity ◽  
New Records ◽  
Algal Species ◽  
Sampling Effort ◽  
Algal Flora ◽  
Environmental Characteristics ◽  
Specific Level ◽  
Northeast Region ◽  
Wallacean Shortfall

Abstract: The global biodiversity loss is a consensus. The biodiversity conservations shortfalls make conservation of biological diversity even more challenging. For many taxa, the knowledge about their distributions is deficient, and this is called the Wallacean shortfall. This situation is no different within algae biodiversity, especially in Brazil. There is still an enormous inequity of sample effort, as is the case of the Parnaíba River Basin (Northeast region), which had only 10 algal species in published (the lowest number of algal species reported among the main Brazilian basins). The present work had the objective of increasing the knowledge of algal flora in Brazil by conducting a taxonomic study of the stream macroalgal species of the Parnaíba River Basin. The sampling of macroalgae was carried out in 21 segments of streams from the Middle and Lower Parnaíba Basin, in the Piauí and Maranhão states. Macroalgae were manually removed and preserved in 4% formaldehyde. Environmental characteristics of each segment were measured in order to describe the sampling sites. The taxonomic survey of the macroalgal communities resulted in the identification of 38 taxa in total, of which 32 at a specific level; three vegetative groups; two sporophytic stages of red algae and one unidentified species. Among the 38 species recorded, 37 are new records for the Parnaíba River Basin. Following the same pattern, 23 species are new records for the Brazilian Northeast region, and Microcoleus lacustris represented the first report in Brazil. Despite the fact that it remains the Brazilian basin with the lowest number of algal species documented, this study contributed to the increase of almost five times the number of species sampled in the Parnaíba River Basin (from only 10 to 47 species). These data reinforce that the differences presented in algal diversity in the Brazilian regions are more related to the sampling effort than other factors (e.g. environmental characteristics, geographic distribution, biomes, among others). In addition, this survey illustrates not only the group's lack of information in the region but also shows the importance of this type of study as a tool for expanding the knowledge about biodiversity and its conservation.

Study on Location and Ecological Environmental Characteristics of Onshore Wind and Solar Generation Projects

2020 ◽  
Vol 11 (3) ◽  
pp. 145-153
Author(s):  
Yongyan Zhu ◽  
Hyunchan Sung ◽  
Yoonji Kim ◽  
Sunghoon Cha ◽  
Seongwoo Jeon
Keyword(s):  
Environmental Characteristics ◽  
Onshore Wind ◽  
Solar Generation
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