Catrina-The International Journal of Environmental Sciences最新文献

{"title":"Anti-microbial and Anti-diabetic Activity of Six Seaweeds Collected from the Red Sea, Egypt","authors":"N. Osman, Adel A. Siam, Islam M. El-Manawy, Y. Jeon","doi":"10.12816/CAT.2019.49157","DOIUrl":"https://doi.org/10.12816/CAT.2019.49157","url":null,"abstract":"Marine algae are a well-known source of active compounds with many biological activities. Many studieshad point to the anti-microbial and anti-diabetic activity of seaweeds. Egyptian shores are rich withseaweeds, yet studies concerning their biological activity are inadequate. In the present work, the 80%methanolic extract of six seaweeds (Actinotrichia fragilis, Cystoseira myrica, Hormophysa cuneiformis,Laurencia papillosa, Sargassum cinereum, and Turbinaria turbinate) were tested for their antimicrobialactivity using disc diffusion method and anti-diabetic activity using the Inhibition of α-glucosidasemethod. The six species were collected from Hurghada, Red Sea, Egypt during late December, 2012. Theresults should that the algal extracts were effective against both Gram-positive and Gram-negative bacteriawhen used at 2000μg/disc concentration. On Candida albicuns, both low and high concentrations showedactivity. For anti-diabetic activity, H. cuneiformis was the most active species that reached to 53%inhibition of α-glucosidase at the highest concentration (1000 μg/ml) with IC50 676.9 μg/ml. Inconclusion, the tested seaweeds possess a good anti-microbial and anti-diabetic activity, especially thespecies Hormophysa cuneiformis.","PeriodicalId":42145,"journal":{"name":"Catrina-The International Journal of Environmental Sciences","volume":"281 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91181183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biodiversity and habitat use of wintering and breeding waterbirds in Burullus Lake (Ramsar site), Egypt","authors":"Basma M. Sheta","doi":"10.12816/CAT.2019.49179","DOIUrl":"https://doi.org/10.12816/CAT.2019.49179","url":null,"abstract":"The present study seeks to assess the bird biodiversity at the Important Bird Area (IBA) and Ramsar site,Lake Burullus, northern Egypt. Waterbirds biodiversity was assessed at 14 selected sites in the lake duringwinter and spring seasons. The assessment included richness, composition, evenness, abundance, andSimpson and Shannon-Wiener diversity indices. Bird species diversity varied spatially and temporallyamong different sites during the study period. Estimated species richness was 49 species. Winter birdswere mainly migratory waterbirds like waterfowl, distributed in the islets for foraging, which was the mainactivity of 51% of total birds, followed by 36% roosting and 13% breeding at the lake. Evidence ofbreeding was recorded, such as collecting nest material, courtship behavior and food collecting forjuveniles. The hierarchical cluster analysis separated the lake sites into four distinctive habitats: lakeshores, open water, islets and reed beds. Seven bird species showed significant affinities with differenthabitat types: Laughing dove (Streptopelia senegalensis) favored the lake shores habitat (P< 0.04); Littlebittern (Ixobrychus minutus) (P< 0.04), Pied kingfisher (Ceryle rudis) (P< 0.04), Common kingfisher(Alcedo atthis) (P< 0.02), Pied wagtail (Motacilla alba) (P< 0.04), and Graceful prinina (Prinia gracilis)(P< 0.01) were found in islands habitat. Little egret (Egretta garzetta) dominated the reed beds habitatgroup (P< 0.03). The results reflected the importance of Burullus Lake as a wintering and breeding habitatfor birds and suggested that more implemented conservation and management strategies should beadopted.","PeriodicalId":42145,"journal":{"name":"Catrina-The International Journal of Environmental Sciences","volume":"12 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81873663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"On the Ecology of Weeds in the Orchards habitat During Summer Season in Nile Delta, Egypt","authors":"I. Mashaly, Sami Al-Barti, A. A. El-Gawad","doi":"10.12816/CAT.2019.47548","DOIUrl":"https://doi.org/10.12816/CAT.2019.47548","url":null,"abstract":"The present study aims to investigate the ecology of weed communities associated with some orchards habitat using the variations in environmental factors to determine the distribution and abundance of the recognized weed communities in the study areas. The sampled stands were distributed in four Governorates. Field visits were started from January 2014 to September 2015, 45 stands were selected for sampling the vegetation types during summer season. The application of TWINSPAN classification based on the importance values of 49 plant species recorded in selected 45 sampled stands representing the summer orchards sites in the study areas led to the recognition of four vegetation groups (Euphorbia heterophylla, Commelina benghalensis, Cynanchum acutum and Xanthium strumarium were the dominate plants). In summer season, the application of DCA technique proved that, the plant communities recognized by TWINSPAN classification were markedly distinguishable and having clear pattern of segregation on the ordination plane. The application of CCA technique was used to determine the most effective soil variables controlling the abundance and distribution of weed communities associated during summer season.","PeriodicalId":42145,"journal":{"name":"Catrina-The International Journal of Environmental Sciences","volume":"13 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90675325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vegetation Ecology Associated with Some Species of Family Zygophyllaceae in Different Regions of Egyptian Desert","authors":"I. Mashaly","doi":"10.12816/CAT.2018.6083.1008","DOIUrl":"https://doi.org/10.12816/CAT.2018.6083.1008","url":null,"abstract":"The Zygophyllaceae is a widespread family of common existence in arid and semi-arid habitats of the Old and New Worlds, especially in seasonally dry deserts. Various members of this family are characterized by high efficient potential for the treatment of broad spectrum health disorders and well known in scientific and folk literature for their medicinal uses. TWINSPAN cluster for the 38 stands yielded four vegetation groups (A, B, C and D) at the 3rd level of classification. These groups were identified after the first dominant species that attained the highest importance value (IV). Group A: Zygophyllum aegyptium, group B: Fagonia cretica, group C: Zygophyllum coccineum and group D: Pulicaria undulata. The vegetation group A characterized sand formation habitats along Deltaic Mediterranean coastal desert, while group B represented roadside habitats of the western Mediterranean coastal desert, group C dominated Wadi Hagul bed and gravel desert habitats of Suez. Furthermore, group D inhabited wadi bed and roadside habitats in Ismailia. Ordination of the vegetation groups along 2 axes was performed using Detrended Correspondence Analysis (DCA), while Canonical Correspondence Analysis (CCA) was utilized to determine the relation between the community types and soil factors.","PeriodicalId":42145,"journal":{"name":"Catrina-The International Journal of Environmental Sciences","volume":"34 2 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90456495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comments on the Egyptian species of Ephedra L. (Ephedraceae)","authors":"H. Freitag","doi":"10.12816/CAT.2019.47458","DOIUrl":"https://doi.org/10.12816/CAT.2019.47458","url":null,"abstract":"The article deals critically with several aspects of the recently published article on the Egyptian species of genus Ephedra, published by Faried et al. 2018, in Catrina 17. It provides additional and correcting data on the morphology and distribution of some species including an identification key based on vegetative characters, detailed distribution maps based on the evaluation of material from all relevant herbaria and photos of the respective species taken in the field.","PeriodicalId":42145,"journal":{"name":"Catrina-The International Journal of Environmental Sciences","volume":"8 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88216647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Conservation Strategy for protecting Crataegus x sinaica against climate change and anthropologic activities in South Sinai Mountains, Egypt","authors":"A. Moustafa, M. Zaghloul, S. Mansour, Modhi O. Alotaibi","doi":"10.12816/CAT.2019.28577","DOIUrl":"https://doi.org/10.12816/CAT.2019.28577","url":null,"abstract":"The genus name Crataegus, is derivative from a Greek word kratos meaning hardness of wood. Crataegus relates to family Rosaceae; it contains about 280 species of deciduous spiny shrubs and small trees where most of these species are grown as ornamentals and hedging plants, they are broadly distributed in Northern temperate zones of Asia, Europe and America. In Egypt, it is confined to mountainous South Sinai; it grows on the high elevated wadis in Saint Catherine area. Many Crataegus species have been traditional used in folk medicine since ancient time for the cure of heart problems such as hypertension, angina, arrhythmia, and congestive heart failure. Researches of Crataegus species usually concentrate on the identification and quantification of flavonoids and anthocyanin, which have been shown to have pharmacological activity. But there is a continuous reduction in habitat quality for this species through time. This reduction observed in Crataegus sinica is likely caused by climate changes in the past few decades and human activities (over cutting for fuel and food, unmanaged collection for scientific researches, uncontrolled tourism and establish of bedouin settlements). We aim to highlights these challenge threatening Crataegus population and suggest conservation plans to protect this species from extinction and finally make further studies about this important threatened species.","PeriodicalId":42145,"journal":{"name":"Catrina-The International Journal of Environmental Sciences","volume":"73 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73931006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Species Diversity and Seasonal Population Dynamics of Terrestrial Insects in Saluga and Ghazal Protected Area, Aswan, Egypt","authors":"H. Abdel-wahab, A. Abdel-Kader, Rahma Yousef","doi":"10.12816/CAT.2019.28621","DOIUrl":"https://doi.org/10.12816/CAT.2019.28621","url":null,"abstract":"Species diversity, relative abundance and population trends of terrestrial insects were studied in Saluga and Ghazal protected area, Aswan, Egypt for the first time during one year from November 2015 to October 2016. Three different methods of survey (aerial net trap, pitfall trap and yellow sticky trap) were used in different nine sites including all habitats in the area, sandy, rocky, vegetated and aquatic area. A total of 15151 individuals of 78 species belonging to 43 families from 11 orders were recorded using the previous three methods. The net trap collected 62 species from 59 genera belonging to 32 families in 11 orders among them Lepidoptera was the most abundant order followed by Hymenoptera and Odonata and pitfall traps collected 9 species belonging to 9 genera from 4 families and 3 orders, Hymenoptera and Coleoptera were the most abundant orders, while yellow sticky traps collected 10 species belonging to 10 genera, 9 families and 5 orders, Hemiptera and Coleoptera were the most abundant orders. The study indicated that the net trap was the most effective method for monitoring the largest number of orders, families and species and the highest population number was recorded in site 3, while the lowest number was in site (9). The relation between ecological factors and abundance of the most dominant species is discussed.","PeriodicalId":42145,"journal":{"name":"Catrina-The International Journal of Environmental Sciences","volume":"36 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75170948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative Study of the Moss Flora of Ismailia Governorate with Other Territories of Egypt","authors":"Yasmin M. Hassan, Usama Abou-Salama, W. Kamel, E. G. Eldin","doi":"10.12816/CAT.2019.28594","DOIUrl":"https://doi.org/10.12816/CAT.2019.28594","url":null,"abstract":"This study was conducted to held comparisons between moss flora of Ismailia governorate and the different territories in Egypt. The last study done on this governorate was carried out three decades before. Fifteen excursions were set out for this purpose. Three hundred and ten moss samples were collected from Ismailia governorate. The study revealed that floral similarity was largest between Ismailia governorate and the Southern Sinai massive (S). On the other hand, both Nile Nubia (Nn) and Gebel Elba (GE) showed the lowest species similarity in comparison with the study area","PeriodicalId":42145,"journal":{"name":"Catrina-The International Journal of Environmental Sciences","volume":"109 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77640224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ecological Study on Three Plantago Species and their Associates in Nile Delta Region","authors":"I. Mashaly, A. A. El-Gawad, M. Ziada, Maha R. Deweeb","doi":"10.12816/CAT.2019.28597","DOIUrl":"https://doi.org/10.12816/CAT.2019.28597","url":null,"abstract":"The present work aims at the following objectives: 1) vegetation analysis of the Plantago communities (P. major, P. lagopus, and P. squarrosa) in Nile Delta of Egypt using multivariate analysis, 2) analysis of variations in the edaphic variables controlling the abundance and distribution of the recognized plant communities, and 3) evaluation of the biodiversity of the Plantago communities in the study area. The sampled stands are distributed in four Governorates, namely: El-Dakahlia, Kafr El-Sheikh, El-Behira, and El-Sharkia. The plant cover and density of the recorded species were investigated in 60 sampled stands, and the vegetation classification and ordinated were achieved. Soil samples were collected and the physical and chemical properties were determined. The species richness and eveness in the three communities were aslo calculated. The application of Two-Way Indicator Species Analysis (TWINSPAN) classification based on the importance values of 105 plant species led to the recognition of four vegetation groups. Group A and B dominated by Plantago squarrosa. However, group C comprises dominated by Plantago lagopus. Group D dominated by Plantago major. The stand ordination is given by Detrended Correspondence Analysis (DCA) showed that the vegetation groups obtained by TWINSPAN classification are remarkable distinguishable and having a clear pattern of segregation on the ordination plane. Canonical Correspondence Analysis (CCA) exhibited that organic carbon, electrical conductivity, sand fraction, and pH value showed high significant corrections with the first and second axes. However, calcium carbonate, sodium, potassium and calcium cations as well as water-holding capacity, total dissolved phosphorus, silt and clay fractions exhibited a moderate significant correlation. P. squarrosa community was affected with many soil variables such as calcium carbonate, sodium, organic carbon, pH value, sand and magnesium. However, P. lagopus was affected by bicarbonates, potassium, sulfates and total nitrogen. Moreover, P. major showed a close relationship with electrical conductivity, water-holding capacity, total dissolved phosphorus, silt, clay, and porosity. The diversity measurements showed that the P. major community attained the highest richness and evenness, while the community of P. squarrosa showed the lowest diversity and eveness.","PeriodicalId":42145,"journal":{"name":"Catrina-The International Journal of Environmental Sciences","volume":"88 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76825990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Sandy Soil Amendment with Filter Mud Cake on Growth and Some EcoPhysiological Parameters of Daucus carota and Beta vulgaris Plants","authors":"N. El-Tayeh, F. Salama, N. Loutfy, M. A. Alhamd","doi":"10.12816/CAT.2019.28613","DOIUrl":"https://doi.org/10.12816/CAT.2019.28613","url":null,"abstract":"Sand culture technique was employed to investigate the effect of filter mud cake (FMC) from Qus sugarcane factory as fertilizer on water content, dry matter, chlorophylls content and some carbon and nitrogen metabolites in carrot (Daucus carota) and beet (Beta vulgaris) plants. The investigations were carried out under natural conditions using the FMC of Qus sugarcane factory at Qena governorate. The FMC was mixed with sand soil at three levels: 10%, 30% and 50%. The sand soil was used without FMC as control. Results revealed that the amendment of soil with FMC slightly reduced pH of soil and increased electric conductivity (EC), organic matter (O.M), total nitrogen and organic carbon (O.C) with increasing the FMC level. Dry mass and water content of both tested plants increased significantly by FMC treatment as comparing with control plants. The investigated plants grown on soil amended with FMC levels showed highly significant increase in both chlorophylls content a and b than in control plants in both experimental plants. Whereas chlorophyll a/b ratio and proline content was decreased signifi-cantly. Results indicated also that the soluble sugars, proteins and total amino acids were increased significantly by FMC application in both experimental plants comparing with those grown in unlamented soil. It can be concluded that application of FMC as fertilizer improved the physico-chemical properties of the reclaimed soil to be more suitable for cultivation.","PeriodicalId":42145,"journal":{"name":"Catrina-The International Journal of Environmental Sciences","volume":"26 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78873697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}