Sea-level fluctuation and host-plant habitat requirements influence the Pleistocene history of the invasive speciesAmphiareus obscuriceps(Hemiptera: Anthocoridae): Inferences from molecular phylogeography and ecological niche modeling

2016 ◽  
Author(s):  
Danli Zhang
2017 ◽  
Vol 16 (2) ◽  
pp. 225 ◽  
Author(s):  
Omar Machado Entiauspe-Neto ◽  
Márcia Ferret Renner ◽  
Conrado Mario-da-Rosa ◽  
Arthur Diesel Abegg ◽  
Daniel Loebmann ◽  
...  

The original description of Elapomorphus wuchereri Günther, 1861 included a drawing and brief comments about the morphology of three specimens; two of the latter belong to another species and the holotype is lost. Based on the discovery of new specimens, we redescribe Elapomorphus wuchereri and designate a neotype. We discuss the variation and the taxonomic history of the species, and based on the results of a species distribution model analysis (SDM), we describe the distribution, extent of occurrence, and conservation status.


2013 ◽  
Vol 19 (8) ◽  
pp. 2524-2535 ◽  
Author(s):  
Gabriela Mendoza-González ◽  
M. Luisa Martínez ◽  
Octavio R. Rojas-Soto ◽  
Gabriela Vázquez ◽  
Juan B. Gallego-Fernández

2016 ◽  
Vol 12 (3) ◽  
pp. 135
Author(s):  
Darwin Siregar ◽  
Kresna Tri Dewi

Salah satu metode penentuan umur absolut batuan, fosil, sedimen atau artefak adalah menggunakan pentarikhan radiokarbon (C14) dari material organik. Data umur tersebut dapat berguna untuk menunjang berbagai penelitian terkait dengan sejarah bumi dan kehidupan manusia. Tujuan dari tulisan ini adalah untuk melacak fluktuasi muka laut berdasarkan data umur sedimen bawah dasar laut di sebelah utara Pulau Bangka. Hasil analisis pentarikhan radiokarbon terhadap tiga sampel sedimen menunjukkan dua umur yang berbeda. Sedimen dari bagian bawah (70-80 cm) dibawah dasar laut telah diperoleh umur 15.050± 60 SM dan 15.250 ±850 SM. Rentang waktu ini termasuk dalam segmen 2 pada saat laut naik sedang dari kedalaman -114 ke -96 m dari muka laut saat ini. Sedimen dari bagian atas (30 cm) telah diperoleh umur 6.500 ± 360 SM pada saat muka laut mendekati posisi sekarang. Studi ini memperlihatkan fluktuasi muka laut di wilayah lokal di sekitar Pulau Bangka. Katakunci: pentarikhan karbon, muka laut, Pulau Bangka One method for absolute dating of rocks, fossils, sediments or artefacts is by using radiocarbon dating (14C dating) of organic materials. This age data can be useful for supporting various researches related to the history of earth and human being. The purpose of this paper is to trace the sea level fluctuation based on subsurface sediments from northern part of Bangka Island. The radiocarbon dating from three sediment samples has resulted two different age. Sediments at the bottom part of the core (70-80 cm) below seafloor have been dated at 15.050 ± 60 BP and 15.250± 850 BP. It belongs to segment 2 when sea rose moderately from -114 to-96 m of the present-day sea level. The sediment at the upper part (30 cm) has been dated at 6.500 ± 360 BP when sea level as close as present-day position. This study shows sea level fluctuation in the local area off Bangka Island. Keywords: radiocarbon dating, sea level, Bangka Island


2021 ◽  
Author(s):  
Pattarapon Promnun ◽  
Nontivich Tandavanitj ◽  
Chalita Kongrit ◽  
Kritsayam Kongsatree ◽  
Phinit Kongpraphan ◽  
...  

2020 ◽  
Vol 81 (3) ◽  
pp. 144-146
Author(s):  
Dimitar Sinnyovsky

The Nesla Gorge is a picturesque flat-bottomed gorge carved by the Gaber River through the limestones of the Slivnitsa Formation west of Nesla village, Dragoman area. Its flattened bottom is evidence for an inter-lake strait between the Gaber Basin and the Nishava-Moravian Basin in Serbia. This is proved by several layers in the Novi Iskar Formation containing mollusks typical of the Pannonian Basin. It is supposed that the main reason is the sea-level fluctuation of the Pannonian Sea due to Milankovitch climatic cycles which caused two-way movement of the water between the two basins through the Nesla Gorge. The geological history of the area, as evidenced by the geomorphological data, shows the important role of the Nesla Gorge for the existence of the Gaber Basin and Sofia Lake during the Pontian and Dacian Ages.


2012 ◽  
Vol 10 (2) ◽  
pp. 169-176 ◽  
Author(s):  
Rosane Garcia Collevatti ◽  
Matheus Souza Lima-Ribeira ◽  
Advaldo C. Souza-Neto ◽  
Amanda A. Franco ◽  
Guilherme de Oliveira ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document