eng
Egyptian Society for Environmental Sciences
Catrina: The International Journal of Environmental Sciences
1687-5052
2090-2786
2011-11-01
6
1
1
10
18452
Original Article
Fitness of Three Ballota Species (Lamiacea) Growing in Saint Catherine Protectorate, Egypt.
Mohamed Zaghloul
zaghloul_mohamed@yahoo.com
1
Abdel Raouf Moustafa
2
Botany Department, Faculty of Science, Suez Canal University, Ismailia, Egypt
Botany Department, Faculty of Science, Suez Canal University, Ismailia, Egypt
Ballota undulata, B. kaiseri, and B. saxatilis are very rare species grow in small-sized populations. As
small populations tend to be subject to an increased probability of stochastic extinction due to
demographic, environmental and genetic factors, this study aimed to figure out if Ballota populations suffer
reduced fitness and its correlation or association with genetic diversity and mating parameters. Also, it aimed
to investigate if there is significant difference in fitness between the three species of Ballota. Correlations and
association between fitness, population size, genetic variation, and mating system parameters were tested
using Spearman correlation and simple regression analyses. Stepwise regression analyses were used to
identify useful predictors for fitness. The results revealed that Ballota populations’ fitness is generally
low to very low with no significant difference between the three Ballota species. There was no detected
relationship between B. undulata fitness or population size and observed or expected heterozygosity.
While there was no evidence for reduced fitness in Ballota populations, the study indicated that fitness is
negatively associated with single locus outcrossing rate (ts) implying that Ballota populations are locally
adapted. Population size was associated only with the number of alleles (A) and number of alleles per
polymorphic locus (AP).
https://cat.journals.ekb.eg/article_18452_0b1f7cd0d9c62d79ec6c896af5732c2c.pdf
Ballota
Sinai
endangered species
fitness
Restoration
eng
Egyptian Society for Environmental Sciences
Catrina: The International Journal of Environmental Sciences
1687-5052
2090-2786
2011-11-01
6
1
11
17
18453
Original Article
Land Suitability for Afforestation and Nature Conservation Practices Using Remote Sensing & GIS Techniques
Mohamed Elhag
stkranger@yahoo.com
1
Department of Geoinformation in Environmental Management, Mediterranean Agronomic Institute of Chania, Alsyllio Agrokepiou, Makedonias 1, Chania 73100, Greece.
Monitoring the locations and distributions of land cover changes is important for establishing linkages between policy decisions, regulatory actions and subsequent land use activities. Given the importance of land cover changes in conservation plans, adequate scenarios and efficient multi temporal remote sensing techniques were desired for implementation in the study area. The study is located at the south western corner of Crete Island, Greece. Two temporal Landsat images acquired in 1984 (Landsat TM-5) and 2006 (Landsat ETM-7) were used to generate Normalized Difference Vegetation Index (NDVI) change detection map. Visual interpretation of color composite Landsat images is used to obtain suitability map. To keep the concept of sustainability, the involvement of human dimension in landscape multi dimension space is considered. Spatial Decision Support System (SDSS) is then implemented to assure to guide the selection of the most satisfactory alternatives. Multi Criteria Analysis (MCA) is used for compromising conflicts and to show how two different criteria are diverge or converge according to the analysis. Different suitability maps were produced and the most suitable areas for the two different practices were conducted. Areas less than 1800 m2 were neglected and the areas with common interest were buffered with 100 m.
https://cat.journals.ekb.eg/article_18453_30e1e0cf0be23f34e02da7e394c8d42d.pdf
Change Detection
GIS
Land cover
Land suitability
MCA
NDVI and SDSS
eng
Egyptian Society for Environmental Sciences
Catrina: The International Journal of Environmental Sciences
1687-5052
2090-2786
2011-11-01
6
1
19
28
18454
Original Article
Nutritive evaluation of some range plants species in the Western Mediterranean desert of Egypt
Hassan EL-Kady
1
Mohamed El-Beheiry
mbehery58@yahoo.com
2
Ahmed Abdel Wahab
3
Botany Department, Faculty of Science, Tanta University, 31527 Tanta, Egypt.
Botany Department, Faculty of Science, Tanta University, 31527 Tanta, Egypt.
Botany Department, Faculty of Science, Tanta University, 31527 Tanta, Egypt.
The present study assesses the nutritive evaluation of some range plants species in the Western Mediterranean desert of Egypt to evaluate their usage as forage for domestic animals (mainly sheep and goats). Analysis of the plant organs which represent the diet selected by the herbivores indicated that their mean protein content is about 1.1 %. This is lower than the proper level, but it is ranked as acceptable protein content. The crude protein intake was about 46.4 g 100 kg live weight-1 day-1, which is inadequate for the protein needs of grazing animals .The amount of total digestible nutrients (TDN) was lower than the standard requirements of the sheep. The shortfall in forage nutrition may be attributed to the high stocking rate (animal density area-1). If the stocking rate is about seven times lower than the present value, most of the requirements of energy and protein could be fulfilled in the range. The ratio of Ca: P was higher than the optimum, which may lead to lower utilization of both Ca and P by animals.
https://cat.journals.ekb.eg/article_18454_ee99fd10c707d055f3f02f30398d6c69.pdf
nutritive value
desert
total digestible nutrients
livestock
arid ecosystem
eng
Egyptian Society for Environmental Sciences
Catrina: The International Journal of Environmental Sciences
1687-5052
2090-2786
2011-11-01
6
1
29
39
18455
Original Article
Micropropagation for conservation of two rare Capparis species from Egypt
Ghada Hegazi
hegazighada@yahoo.com
1
Saad Eid
2
Abd El Monem Sharaf
3
Tissue Culture Unit, Plant Genetic Resources Department, Desert Research Center, Cairo, Egypt
Tissue Culture Unit, Plant Genetic Resources Department, Desert Research Center, Cairo, Egypt
Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
An efficient protocol for micropropagation was developed to conserve two rare Egyptian Capparis species; Capparis orientalis Duh. and Capparis leucophylla DC., using stem node sections and shoot tips. In vitro propagation of these two species has not been previously reported. Concerning C. orientalis; Murashige and Skoog (MS) medium containing 3 mg/L benzyl adenine (BA) with or without 0.2 mg/L 2-naphthalene acetic acid (NAA) were the most suitable media for the establishment of both stem node sections and shoot tips, and MS medium containing 3 mg/L BA was optimum for the multiplication of explants. Δ²- isopentenyladenine (2iP) gave promising results in enhancing elongation of axillary shoots of C. orientalis, when added to MS medium at a concentration of 1 mg/L in addition to 3 mg/L BA. The highest rooting percentage of C. orientalis (60%) was obtained on MS medium supplemented with 1 mg/L of both indole-3-butyric acid (IBA) and NAA after 60 days of incubation. With respect to C. leucophylla; MS medium containing 1 or 3 mg/L BA and that containing 2.5 mg/L of both BA and 2iP were the best for the establishment of stem node sections and shoot tips. MS medium containing 1 or 3 mg/L BA were the most promising media for the proliferation of explants. Gibberellic acid (GA3) at a concentration of 3 mg/L gave the best results in enhancing elongation of axillary shoots of C. leucophylla explants. The highest rooting percentage reached only 20% and was obtained on MS medium containing 2 mg/L IBA + 0.5 mg/L NAA after 60 days of incubation. An average of 92–98% of the acclimatized transplants of both C. orientalis and C. leucophylla survived after transferring into peatmoss:sand mixture (1:1 v/v) in the greenhouse conditions.
https://cat.journals.ekb.eg/article_18455_ecd160f27c2b6f49e660e755553f4fca.pdf
Capparis orientalis
Capparis leucophylla
In vitro propagation
stem node sections
shoot tips
eng
Egyptian Society for Environmental Sciences
Catrina: The International Journal of Environmental Sciences
1687-5052
2090-2786
2011-11-01
6
1
41
45
18456
Original Article
Micropropagation of Rumex vesicarius L. Through Shoot Tip Culture
Abo El-soud H.
1
AL-azab A.
2
Koriesh M.
3
Atta-Alla K.
islamhassan2010@hotmail.com
4
Horticulture Dept., Faculty of Agriculture, Suez Canal University, 41522, Ismailia, Egypt
Horticulture Dept., Faculty of Agriculture, Suez Canal University, 41522, Ismailia, Egypt
Horticulture Dept., Faculty of Agriculture, Suez Canal University, 41522, Ismailia, Egypt
Horticulture Dept., Faculty of Agriculture, Suez Canal University, 41522, Ismailia, Egypt
Shoot tips of Rumex vesicarius L. were excised from in vitro seedlings and transferred for shoot multiplication into MS medium supplemented with various concentrations of 6-benzyladenin (BA) or Kinetin (Kin). After 4 weeks, shoot multiplication was best achieved from explants cultured on MS medium containing 8.88 μM BA, with an average of 11.0 shoots per explant. While, the shoot tips cultured on the medium containing 26.63 μM Kin produced 4.6 shoots per explant. For rooting, the proliferated shoots were cultured on rooting medium containing IBA or NAA at different rates. Root induction was successfully occurred on MS medium supplemented with 2.46μM IBA or 7.38μM NAA .The survival rate of transplants during acclimatization reached 87% and the plants grew normally under the greenhouse conditions.
https://cat.journals.ekb.eg/article_18456_3550946e874695dfa8090025f5a072cb.pdf
Rumex vesicarius
micropropagation
6-Benzyladenin (BA)
Kinetin (Kin)
Naphthalene Acetic Acid (NAA)
Indole butyric acid (IBA)
eng
Egyptian Society for Environmental Sciences
Catrina: The International Journal of Environmental Sciences
1687-5052
2090-2786
2011-11-01
6
1
47
58
18457
Original Article
An Ecological Study on Two Geophytes: Asparagus stipularis Forssk. and Asphodelus aestivus Brot. in the Mediterranean Coast of Egypt
Mamdouh Serag
mserag@mans.edu.eg
1
Abdel-Hamid Khedr
2
Amina Abo El-Naga
3
Reda Abo-Moustafa
4
Botany Department, Faculty of Science at New Damietta, Damietta Branch, Mansoura Uuniversity.
Botany Department, Faculty of Science at New Damietta, Damietta Branch, Mansoura Uuniversity.
Botany Department, Faculty of Science at New Damietta, Damietta Branch, Mansoura Uuniversity.
Botany Department, Faculty of Science at New Damietta, Damietta Branch, Mansoura Uuniversity.
The present study aims to evaluate the distribution pattern of two geophytes namely: Asparagus stipularis and Asphodelus aestivus along the Mediterranean coast of Egypt. The floristic analysis indicated that the associates with both species are mainly therophytes, chamaephytes and geophytes. Both species are found to grow in slightly alkaline soil and low to medium soil salinity. A. stipularis prefers relatively high soil organic carbon, while A. aestivus prefers soil with high calcium carbonate content. Species richness showed hum-pbacked curve along the pH and calcium carbonate gradients for both species. Species richness of A. stipularis community showed a positive relation to soil salinity and negative relation to organic carbon, whereas no noticeable trends were found in case of A. aestivus community. Canonical correspondence analysis (CCA) indicated that calcium carbonate and Ca+2 are the most determinant edaphic factors for distribution A. aestivus, while organic carbon, Na+ and Mg+2 are the effective factors for the distribution of A. stipularis.
https://cat.journals.ekb.eg/article_18457_df41ae333e25291ff161e239ae19d2a8.pdf
Asparagus
Asphodelus
Geophytes
Mediterranean coast
soil variables
species richness
Protected Area
eng
Egyptian Society for Environmental Sciences
Catrina: The International Journal of Environmental Sciences
1687-5052
2090-2786
2011-11-01
6
1
59
74
18458
Original Article
Impact of Some Anthropogenic Activities on the Diversity of Resident Bird Species at Damietta Region, Egypt
Basma Sheta
1
Gamal Orabi
gamalorabi@hotmail.com
2
Mohamed Bedir
mohamedbedir@hotmail.com
3
Mohamed El-bokl
4
Lotfi Habbk
5
Department of Zoology, Faculty of Science, Mansoura University, New Damietta, Egypt
Department of Zoology, Faculty of Science, King Saud University, Saudi Arabia
Department of Zoology, Faculty of Science, Suez Canal University, 41522 Ismailia, Egypt
Department of Zoology, Faculty of Science, Mansoura University, New Damietta, Egypt
Department of Zoology, Faculty of Science, Mansoura University, New Damietta, Egypt
The present study aims to evaluate the impact of some anthropogenic activities on the resident bird community of northern area of Damietta coast, Egypt. Birds were surveyed by using point count and lines transect methods, in six different localities for 15 months (from July 2007 to September 2008). The localities represented the different human activities (cultivated; urbanized and three different fish
farming sites) in addition to one control locality. The study investigated the effects of habitat type and climatic factors on resident bird community assemblage. Habitat characteristics included: vegetation cover, soil physical analysis and climatic factors. Habitat type and plant covers were clearly different among the localities and to less extent within them. Resident species diversity varied spatially and temporally among the different localities during the study period. The densely vegetated fish farm site had the highest species richness and abundance, while coastal site had the lowest one. In contrast deserted fish farm site had the highest resident species evenness, while agriculture site had the lowest one. Otherwise, control site had the highest resident species diversity while, coastal site had the lowest one (Simpson diversity index and Shanon-Wiener diversity index). House sparrow was recorded as the most abundant resident bird species among all study sites accumulatively. The different localities had distinct and characteristic groups of species responding to human activities. Hierarchical Cluster Analysis and Bray-Curtis ordination of the resident bird species community indicated that there were two bird groups: the first group included deserted fish farm site, densely vegetated fish farm site and control site near to the native habitat (semi-natural zone), while the second one consisted of coastal site, sparsely vegetated fish farm site and agriculture site (urbanization and highly modified habitat).
https://cat.journals.ekb.eg/article_18458_772527cfcdab68bc5b2082929dd86cb8.pdf
biodiversity
human activity
resident birds
Species diversity
species abundance
species richness
species evenness
Damietta