Specific species response of Cladocera to the trophic and hydrological environments of lakes: A case study of a typical shallow mesotrophic lake

CATENA ◽  
2021 ◽  
Vol 207 ◽  
pp. 105630
Author(s):  
Longjuan Cheng ◽  
Bin Xue ◽  
Edyta Zawisza ◽  
Jinliang Liu ◽  
Shuchun Yao ◽  
...  
Keyword(s):  
Species Response ◽  
Mesotrophic Lake ◽  
Specific Species

scholarly journals ASSESSMENT OF PHYSIOLOGICAL AND MORPHOLOGICAL TRAITS OF PLANTS OF THE GENUS Fragaria UNDER CONDITIONS OF WATER DEFICIT – A STUDY REVIEW

2020 ◽  
Vol 19 (1) ◽  
pp. 21-39
Author(s):  
Marta Rokosa ◽  
Małgorzata Mikiciuk
Keyword(s):  
Water Deficit ◽  
Plant Species ◽  
High Water ◽  
Temperate Climate ◽  
Future Research ◽  
High Water Content ◽  
Species Response ◽  
Influence Of Water ◽  
Specific Species ◽  
Response To Water

The genus Fragaria belongs to the Rosaceae family. The most popular representatives of this species are the strawberry (Fragaria × ananassa Duch.) and wild strawberry (Fragaria vesca L.), whose taste and health benefits are appreciated by a huge number of consumers. The cultivation of Fragaria plants is widespread around the world, with particular emphasis on the temperate climate zone. Increasingly occurring weather anomalies, including drought phenomena, cause immense losses in crop cultivation. The Fragaria plant species are very sensitive to drought, due to the shallow root system, large leaf area and the high water content of the fruit. There have been many studies on the influence of water deficit on the morphological, biochemical and physiological features of strawberries and wild strawberries. There is a lack of research summarizing the current state of knowledge regarding of specific species response to water stress. The aim of this study was to combine and compare data from many research carried out and indicate the direction of future research aimed at improving the resistance of Fragaria plants species to stress related to drought. These plants show patterns of response to stress caused by drought, such as: osmotic adjustment, reduction of transpiration and photosynthesis, and increased efficiency of water use. Drought also causes significant changes in the composition and palatability of the fruit of the Fragaria plant species.

scholarly journals Terrestrial and aquatic flora along a mesotrophic lake shore remaining under increasing human impact: a case study of Lake Powidzkie (Poland)

2010 ◽  
Vol 17 (1) ◽  
pp. 73-90
Author(s):  
Wojciech Stachnowicz
Keyword(s):  
Alien Species ◽  
Human Impact ◽  
Natura 2000 ◽  
Life Forms ◽  
Lake Shore ◽  
Mesotrophic Lake ◽  
Aquatic Flora ◽  
Impatiens Parviflora ◽  
Natura 2000 Site

Terrestrial and aquatic flora along a mesotrophic lake shore remaining under increasing human impact: a case study of Lake Powidzkie (Poland) Floristical investigations were carried out in 2009 in both terrestrial and littoral zones along the NW shore of the mesotrophic Lake Powidzkie (a Natura 2000 site: PLH300026). The results comprise: a general comparison of aquatic vs. terrestrial species richness; a census of 296 species of vascular plants and 7 species of charophytes; the taxonomical, biological (life forms) and geographical-historical (native vs. alien taxa) structure of vascular flora. Distribution of nationally and regionally threatened and legally protected species is presented on maps which illustrate that most of these taxa are concentrated in Lake Powidzkie and in its neighbourhood. The ongoing synanthropization of the flora is assessed and discussed considering localities of chosen alien species and their occurrence within natural plant communities: 21 of 27 aliens were recorded at least once in natural vegetation, whereas 4 of them (Aster lanceolatus, Elodea canadensis, Impatiens parviflora and Rhus typhina) formed their own, xenospontaneous communities. The main conclusion is that while the area still abounds in regionally valuable components of native biodiversity, it simultaneously is more and more threatened by increasing anthropopressure, which has already been manifested by the presence of many potentially invasive alien species.

scholarly journals Influence of Species on Site Selection and Timber Removal: A Case Study for West Virginia

2007 ◽  
Vol 24 (2) ◽  
pp. 146-148 ◽  
Author(s):  
William Luppold ◽  
Delton Alderman
Keyword(s):  
West Virginia ◽  
Sugar Maple ◽  
Considerable Change ◽  
Red Maple ◽  
Yellow Poplar ◽  
Tolerant Species ◽  
Shade Tolerant Species ◽  
Canopy Removal ◽  
Specific Species

Abstract Over the last 40 years the composition of West Virginia forests has been changing as selective cutting practices have removed larger-diameter timber of specific species and partial canopy removal has fostered the regeneration of shade-tolerant species such as red maple. However, since the mid-1990s there has been considerable change in the number of markets accepting lower-quality and smaller-diameter roundwood, especially yellow-poplar. These changes have increased the number of roundwood markets and thus have increased the potential for harvesting based on silvicultural objectives or clearcuts. An examination of harvesting and merchandising practices for 28 harvest sites in West Virginia found an average of four merchandising separations or markets per site. Although the presence of new markets may have increased the section of sites containing yellow-poplar and the removal of this species from these sites, the continuation of diameter-limit cutting seems to have the greatest effect on which trees are removed. This pattern of partial harvests continues to favor the regeneration of shade-tolerant species such as red and sugar maple.

What we don't know and haven't learned about cost - benefit prioritisation of rock-wallaby management

2011 ◽  
Vol 33 (2) ◽  
pp. 202 ◽  
Author(s):  
Todd Soderquist
Keyword(s):  
Decision Making ◽  
Threatened Species ◽  
New South ◽  
Cost Benefit ◽  
High Variability ◽  
Basic Principles ◽  
Species Response ◽  
South Wales ◽  
Adaptive Approaches

Research and translocations of brush-tailed rock-wallabies (Petrogale penicillata) in New South Wales have, in conjunction with studies in Victoria and Queensland, provided extensive insights yet also document the high variability in the species’ response to management. Nonetheless, experts are being asked to quantify predicted response for cost–benefit prioritisation models that will rank threatened species and populations worthy of future funding, with little consideration of the basic principles behind adaptive management. The weaknesses of these prioritisation models must be evaluated carefully by experts in order that appropriate advice is provided which genuinely assists decision-making. I explore the questions facing rock-wallaby ecologists as a case study of how much more we need to know and learn within adaptive approaches to conservation before our predictions are robust.

scholarly journals Mold Detection on Food Surfaces Using YOLOv5

2021 ◽  
Author(s):  
Md. F. Jubayer ◽  
Md. J. A. Soeb ◽  
Mitun K. Paul ◽  
Pranta Barua ◽  
Md. S. Kayshar ◽  
...  
Keyword(s):  
Average Precision ◽  
Proposed Model ◽  
Food Images ◽  
Conducting Research ◽  
Specific Species ◽  
First Time

The study aimed to identify different molds that grow on various food surfaces. As a result, we conducted a case study for the detection of mold on food surfaces based on the “you only look once (YOLO) v5” principle. In this context, a dataset of 2050 food images with mold growing on their surfaces was created. The dataset was trained using the pre-trained YOLOv5 algorithm. In comparison to YOLOv3 and YOLOv4, this current YOLOv5 model had better precision, recall, and average precision (AP), which were 98.10%, 100%, and 99.60%, respectively. The YOLOv5 algorithm was used for the first time in this study to detect mold on food surfaces. In conclusion, the proposed model successfully recognizes any kind of mold present on the food surface. Using YOLOv5, we are currently conducting research to identify the specific species of the detected mold.

scholarly journals Microfluidic Sample Preparation Methods for the Analysis of Milk Contaminants

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Andrea Adami ◽  
Alessia Mortari ◽  
Elisa Morganti ◽  
Leandro Lorenzelli
Keyword(s):  
Phase Separation ◽  
Sample Preparation ◽  
Food Contamination ◽  
Preparation Methods ◽  
Complex Chemical ◽  
Efficient Detection ◽  
Physical Composition ◽  
Specific Species ◽  
Sample Preparation Methods

In systems for food analysis, one of the major challenges is related to the quantification of specific species into the complex chemical and physical composition of foods, that is, the effect of “matrix”; the sample preparation is often the key to a successful application of biosensors to real measurements but little attention is traditionally paid to such aspects in sensor research. In this critical review, we discuss several microfluidic concepts that can play a significant role in sample preparation, highlighting the importance of sample preparation for efficient detection of food contamination. As a case study, we focus on the challenges related to the detection of aflatoxinM1in milk and we evaluate possible approaches based on inertial microfluidics, electrophoresis, and acoustic separation, compared with traditional laboratory and industrial methods for phase separation as a baseline of thrust and well-established techniques.

scholarly journals Estimating species response to management using an integrated process: A case study from New South Wales, Australia

2020 ◽  
Vol 2 (11) ◽  
Author(s):  
Helen J. Mayfield ◽  
James Brazill‐Boast ◽  
Emma Gorrod ◽  
Megan C. Evans ◽  
Tony Auld ◽  
...  
Keyword(s):  
New South ◽  
New South Wales ◽  
Integrated Process ◽  
Species Response ◽  
South Wales
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