Biodiversity encompasses variety of all life, including genes, species, communities, and ecosystems (Gaston, 1996). Understanding the biodiversity and distribution of species is an important part of many preservation and conservation programs. Fauna lists are inventories that generally have two main objectives: to aid the establish ment of biodiversity on various scales and to serve as raw material or distributional information for research fields, such as taxonomy, ecology, and physiology. Fau na lists that have a key function in many fields can be composed for various ecosystems at national or regional scales.Spiders are a ubiquitous and important predator group with high richness and abundance among invertebrates; they occur in many natural, as well as in agricultural ecosystems (Howell and Pienkowski, 1971;Nyffeler and Benz, 1987). Spiders are the largest order of arachnids and rank seventh in the total species diversity among all other groups of organisms (Sebastin and Peter, 2009), with 44,906 recorded species of 3,935 genera belonging to 114 families, as of June 2014 (Platnick, 2014). Spi ders, which have a distinct ecological niche, play sever al important roles in ecosystems: 1) as a component of biodiversity, 2) by contributing to material circulation and energy transfer through preying on many animals in higher trophic levels in the food web, 3) as a natural enemy that feed on many agricultural and forest insect pests, 4) as indicator species detecting environmental changes, such as global warming and environmental pol lution, and 5) providing physiologically active substan ces, such as poison and spider thread, which has used in many research fields.To date, the list of Korean spiders has been revised 24 times from 1956 to 2015 (Paik and Kim, 1956;
In this study, measurement methods for estimating the NH3 emissions in barns and the development of different emission factors were reviewed, and the factors to be considered when applying a dynamic flux chamber approach were analyzed. First, one of the factors to be considered when applying the dynamic flux chamber was determined as the stabilization time in the chamber. As a result of the experiment, it was confirmed that the concentration in the chamber stabilized after 45 min. This is considered to take longer than the stabilization time of 20 min suggested in the previous study. The second is the choice of the measurement method. This method includes real-time measurement and the indophenol method. As a result of the experiment in both methods, the ammonia flux showed a difference of about 10%, so both methods are considered to be considered. Therefore, it is judged that the methodology should be selected according to the situation, such as weather or electric power secured at the barn site. In the future, if studies on whether the stabilization time in the chamber can be changed according to seasonal factors and ambient temperature, and based on a sufficiently large sample size, the results will contribute to improving the reliability of the estimated ammonia(NH3) emissions and the development of an emissions factor for use in the livestock sector in Korea.
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