Temporary Water Ecology for the Zoologist

1988 ◽  
Vol 15 (2) ◽  
pp. 388
Author(s):  
R. Goulder ◽  
D. D. Williams
Keyword(s):  
Temporary Water ◽  
Water Ecology

scholarly journals Enhancement of Detecting Permanent Water and Temporary Water in Flood Disasters by Fusing Sentinel-1 and Sentinel-2 Imagery Using Deep Learning Algorithms: Demonstration of Sen1Floods11 Benchmark Datasets

2021 ◽  
Vol 13 (11) ◽  
pp. 2220
Author(s):  
Yanbing Bai ◽  
Wenqi Wu ◽  
Zhengxin Yang ◽  
Jinze Yu ◽  
Bo Zhao ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Deep Learning ◽  
Large Scale ◽  
Learning Algorithms ◽  
Flood Events ◽  
Test Set ◽  
Source Data ◽  
Flood Disasters ◽  
Temporary Water ◽  
Sentinel 2

Identifying permanent water and temporary water in flood disasters efficiently has mainly relied on change detection method from multi-temporal remote sensing imageries, but estimating the water type in flood disaster events from only post-flood remote sensing imageries still remains challenging. Research progress in recent years has demonstrated the excellent potential of multi-source data fusion and deep learning algorithms in improving flood detection, while this field has only been studied initially due to the lack of large-scale labelled remote sensing images of flood events. Here, we present new deep learning algorithms and a multi-source data fusion driven flood inundation mapping approach by leveraging a large-scale publicly available Sen1Flood11 dataset consisting of roughly 4831 labelled Sentinel-1 SAR and Sentinel-2 optical imagery gathered from flood events worldwide in recent years. Specifically, we proposed an automatic segmentation method for surface water, permanent water, and temporary water identification, and all tasks share the same convolutional neural network architecture. We utilize focal loss to deal with the class (water/non-water) imbalance problem. Thorough ablation experiments and analysis confirmed the effectiveness of various proposed designs. In comparison experiments, the method proposed in this paper is superior to other classical models. Our model achieves a mean Intersection over Union (mIoU) of 52.99%, Intersection over Union (IoU) of 52.30%, and Overall Accuracy (OA) of 92.81% on the Sen1Flood11 test set. On the Sen1Flood11 Bolivia test set, our model also achieves very high mIoU (47.88%), IoU (76.74%), and OA (95.59%) and shows good generalization ability.

scholarly journals WATER MITES (ACARIFORMES: HYDRACHNIDIA, HALACAROIDEA) OF BOGS OF WESTERN SIBERIA (RUSSIA)

2018 ◽  
Vol 18 ◽  
pp. 102-109 ◽  
Author(s):  
Vitaly A. Stolbov ◽  
Victoria V. Popova ◽  
Sergei D. Sheikin ◽  
Sergei S. Tupitsyn
Keyword(s):  
Species Diversity ◽  
Species Composition ◽  
Seasonal Dynamics ◽  
Western Siberia ◽  
Water Bodies ◽  
Water Mites ◽  
Sphagnum Bogs ◽  
Temporary Water Bodies ◽  
Temporary Water

Water mites (Acariformes, Hydrachnidia, Halacaroidea) were studied in 8 different bogs and fens of Western Siberia. 28 species of Hydrachnidia and 5 species of Halacaridae were found in them. The species composition in the bogs was very different. In the fens the abundance and species diversity were higher than in sphagnum bogs and the fauna were based on spring species. The representatives of the halacarid mites dominated in sphagnum bogs, which were not found in the fens. The specific similarity of the studied bogs was low. At the same time, the peculiarities of seasonal dynamics in bogs and fens were similar and resembled temporary water bodies: high numbers in the spring and an abruptly decline in the summer, with a slight increase in autumn.

Water-bath assisted convective assembly of aligned silver nanowire films for transparent electrodes

2015 ◽  
Vol 17 (12) ◽  
pp. 8106-8112 ◽  
Author(s):  
Sheng-kai Duan ◽  
Qiao-li Niu ◽  
Jun-feng Wei ◽  
Jie-bing He ◽  
Yi-an Yin ◽  
...  
Keyword(s):  
Silver Nanowire ◽  
Water Bath ◽  
Convection Flow ◽  
Assembly Process ◽  
Transparent Electrodes ◽  
Convective Assembly ◽  
Temporary Water ◽  
Water Alcohol

We demonstrated a water-bath assisted convective assembly process at a temporary water/alcohol interface for fabricating hierarchical aligned AgNW electrodes. The convection flow plays an important role in the assembly process.

Water ecology of Legionella and protozoan: environmental and public health perspectives

2005 ◽  
pp. 355-380 ◽  
Author(s):  
Paola Borella ◽  
Elisa Guerrieri ◽  
Isabella Marchesi ◽  
Moreno Bondi ◽  
Patrizia Messi
Keyword(s):  
Public Health ◽  
Water Ecology

scholarly journals Phyllodiaptomus (Phyllodiaptomus) roietensis, a new diaptomid copepod (Copepoda, Calanoida) from temporary waters in Thailand and Cambodia, with a key to the species

ZooKeys ◽  
2020 ◽  
Vol 911 ◽  
pp. 1-20
Author(s):  
La-Orsri Sanoamuang ◽  
Santi Watiroyram
Keyword(s):  
New Species ◽  
Morphological Characters ◽  
Water Bodies ◽  
Temporary Waters ◽  
Caudal Ramus ◽  
Temporary Water Bodies ◽  
Temporary Water ◽  
The Right ◽  
Northeastern Thailand

Phyllodiaptomus (Phyllodiaptomus) roietensissp. nov. was collected from temporary water bodies in Roi Et and Nakhon Ratchasima provinces in northeastern Thailand and Kampong Thom Province in central Cambodia. The new species is closely related to Phyllodiaptomus (P.) surinensis Sanoamuang & Yindee, 2001 in that it shares common morphological characters in the males: urosomites 2–3, P5 intercoxal sclerite, right P5 Exp-2, and left P5 Exp. Minor differences on the right antennule, right caudal ramus, P5 basis and Enp exist. The females differ in their Pdg 5, genital double-somite, and P5. An updated key to the species of the genus Phyllodiaptomus Kiefer, 1936 is provided.

Sign in / Sign up

Export Citation Format

Share Document