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102 articles for “abundance”
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Research ArticleOpen accessEvery word in the titleEffect of Soil Types on Growth, Survival and Abundance of Mangrove (Rhizophora racemosa) and Nypa Palm (Nypa fruticans) Seedlings in the Niger Delta, NigeriaAroloye O. NumbereThe invasion of nypa palm into mangrove forest is a serious problem in the Niger Delta. It is thus hypothesized that soil will influence the growth, survival and abundance of mangrove and nypa palm seedlings. The objective was to compare the growth, survival and abundance of both species in mangroves, nypa palm and farm soils (control). The seeds were planted … …American Journal of Environmental Sciences, Vol. 15, Issue 2 · 25 Apr 2019 · 8,867 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleCommunity Structure and Abundance of Tintinnids in the Bay of Bengal During the SpringHuaxue Liu, Liangmin Huang, Zhixin Ke et al.The Bay of Bengal (BoB) locates in eastern part of the northern Indian Ocean, with a unique inter-related oceanographic system due to the monsoon and enormous runoffs’ supply. microbial food web often dominated the stratified Tropical Ocean, while few studies have been taken up to the tintinnids ciliates. Community structure and abundance of tintinnids were investigated in transact 10° N … …American Journal of Agricultural and Biological Sciences, Vol. 7, Issue 4 · 20 Sep 2012 · 7,898 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleStandard Abundance Distribution of Elements in the Universe and Magic Numbers with Boltzmann ProbabilityFrederick Osman, Heinrich HoraThe decay of the standard abundance distribution of elements in the Universe for heavy elements has well-know maxima near magic numbers of the nuclear shell model and deep minima in between. Combining the maxima as a generation probability N (Z) on the proton number Z of the nuclides, a Boltzmann probability shows decay N (Z) = N’ exp (-Z/Z’). The … …American Journal of Applied Sciences, Vol. 1, Issue 1 · 31 Mar 2004 · 7,393 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleTemporal Variations in Abundance and Species Richness of Zooplankton with Emphasis on Ichthyoplankton in the Subtidal Waters of Umm Al-Namil Island, Northwestern Arabian Gulf of the ROPME Sea AreaMohammad Ali, Matrah Al-Mutairi, M.N.V. Subrahmanyam et al.Zooplankton, including the ichthyoplankton, abundance and species richness over time in the subtidal waters of Umm Al-Namil Island, Kuwait Bay, were sampled and quantified from September 2016 to August 2017. At the same period, physicochemical measurements (i.e., water temperature, pH, salinity, dissolved oxygen and nutrient concentrations) occurred. A total of 9 larval fish families were identified: Acropomatidae, Bregmacerotidae, Bythitidae, Clupeidae, … …American Journal of Environmental Sciences, Vol. 15, Issue 6 · 21 Jan 2020 · 7,826 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSeasonal Abundance and Species Composition of Nephotettix spp., in Endemic and Non-Endemic Areas of Rice Tungro Virus Disease in South Sulawesi Province, IndonesiaAndi Nasruddin, Muhammad Danial Rahim, FatahuddinRice tungro disease is semi-persistently transmitted by five species of leafhopper. Nephotettix virescens Distant and N. nigropictus Stal. (Homoptera: Cicadellidae) are predominant species in South Sulawesi with vectoring efficiencies of 83 and 27%, respectively. Relative composition of those species affects the RTV incidence in the field. The purpose of the study was to determine the presence and abundance of those … …OnLine Journal of Biological Sciences, Vol. 16, Issue 3 · 5 Oct 2016 · 7,587 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Impact of Chernozem Contamination with Lead and Oil on the Abundance and Composition of MicroarthropodsSergey Ilyich Kolesnikov, Lidiya Sergeevna Samokhvalova, Maria Gennadievna Zharkova et al.Micro arthropods population reduced with increase in the amount of oil in chernozem. The same pattern was observed up to a certain concentration of lead in the soil (background + 250 mg kg-1) and then at high doses (+500 and +1000 mg kg-1) an increase in microarthropods abundance was recorded. Gamazid mites and acaroid-trombidi form complex mites proved to be … …American Journal of Applied Sciences, Vol. 12, Issue 2 · 29 Apr 2015 · 7,598 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleChanges in the Rumen Papillae During the Periparturient Transition in Holstein Dairy Cows are Accompanied by Changes in Abundance of Proteins Involved in Intracellular pH Regulation, But not SCFA TransportAnne Hermen Laarman, Adam Kleinberg, Michael Alexander Steele et al.The objective of this study was to examine changes in SCFA transport capacity in the rumen epithelium during the parturition transition period. Twelve pregnant, cannulated primiparous and multiparous cows were fed a standard Total Mixed Ration (TMR) for the duration of the dry period; after calving, all cows were switched to an early lactation TMR. Rumen pH, fluid and biopsies … …American Journal of Animal and Veterinary Sciences, Vol. 10, Issue 1 · 31 Mar 2015 · 7,546 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleButyrate Supplementation Affects Mrna Abundance of Genes Involved in Glycolysis, Oxidative Phosphorylation and Lipogenesis in the Rumen Epithelium of Holstein Dairy CowsAnne Hermen Laarman, Louis Dionissopoulos, Ousama AlZahal et al.Energy availability in epithelial cells is a crucial link for maintaining epithelial barrier integrity; energy depletion is linked to impaired barrier function in several epithelia. This study aimed to elucidate the effects of exogenous butyrate on mRNA abundance of genes indirectly involved in rumen epithelial barrier integrity. Sixteen mid-lactation Holstein cows fed a total mixed ration received a concentrate mix … …American Journal of Animal and Veterinary Sciences, Vol. 8, Issue 4 · 27 Nov 2013 · 7,519 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleButyrate and Subacute Ruminal Acidosis Affect Abundance of Membrane Proteins Involved with Proton and Short Chain Fatty Acid Transport in the Rumen Epithelium of Dairy CowsAnne Hermen Laarman, Louis Dionissopoulos, Ousama AlZahal et al.The objective of this study was to elucidate the effects of butyrate on the Short Chain Fatty Acids (SCFA) membrane transport proteins and proton membrane transport proteins in the rumen epithelium. Sixteen mid-lactation cows were fed a 44% Non-Fibre Carbohydrate (NFC) diet and divided into a control treatment and a butyrate treatment. For 7 days, the cows on the control … …American Journal of Animal and Veterinary Sciences, Vol. 8, Issue 4 · 27 Nov 2013 · 7,475 accessesView PDFCite
Research ArticleOpen accessIn the keywordsCharacterization of Fungal Communities in Limed and Unlimed Lands Contaminated with Metals: Phospholipid Fatty Acid (PLFA) Analysis and Soil RespirationKassandre Goupil, Kabwe K. Nkongolo, Sabah NasserullaNorthern Ontario (Canada) especially the Greater Sudbury region is highly known for its nickel, copper and other metal deposits. The mining, roasting and smelting of these elements have caused disastrous effects on the vegetation and overall environment. Dolomitic lime which contains calcium and magnesium carbonate was applied to soils from 1980 to 1995 at different locations across Northern Ontario. The … …American Journal of Biochemistry and Biotechnology, Vol. 11, Issue 2 · 26 May 2015 · 8,094 accessesView PDFCite