scholarly journals An Investigation on the Forest and Savanna Vegetation Types in Nnamdi Azikiwe University, Awka Campus, in Anambra State of Nigeria

2020 ◽  
Vol 8 (1) ◽  
pp. 7-18
Author(s):  
K. U. Ekwealor ◽  
C. F. Iroka ◽  
G. C. Ukpaka ◽  
P. N. Okeke ◽  
P. N. Okafor ◽  
...  
Keyword(s):  
Vegetation Types ◽  
Anambra State ◽  
Savanna Vegetation

scholarly journals Distributional patterns and conservation status of mammals of Swaziland, southern Africa

Koedoe ◽  
1998 ◽  
Vol 41 (2) ◽  
Author(s):  
A. Monadjem
Keyword(s):  
Species Richness ◽  
Conservation Status ◽  
Vegetation Types ◽  
Mammalian Fauna ◽  
Lycaon Pictus ◽  
Mammal Species ◽  
Savanna Vegetation ◽  
Distributional Patterns ◽  
Privately Owned ◽  
Effective Conservation

Distributional patterns (mapped at the quarter-degree square scale) of species richness of 121 species of mammals recorded from Swaziland were examined in relation to the distribution of protected areas (reserves), privately-owned ranches and six vegetation types. The richness of mammal species was highest in the NE and NW, and lowest in the SW areas of Swaziland. Total mammal species richness was positively and highly significantly correlated with the presence of reserves. Similar patterns were shown by artiodactyls, rodents and carnivores. Total mammal species richness, as well as for most mammalian orders, was positively correlated with moist grassveld and moist savanna vegetation types but negatively correlated with dry grassveld. Mammal species richness, especially for the larger species, was very low on Swazi Nation Land, which covers about 60 of the country. The mammalian fauna of the high-lying areas (Highveld) was distinct from that of the low-lying areas (Lowveld). The Middleveld region supported elements of both Highveld and Lowveld species. A large proportion (87.6 ) of Swaziland's mammal species have been recorded from reserves. Two species {Alcelaphus lichtensteini and Lycaon pictus) no longer occur in Swaziland. For effective conservation of Swaziland's mammals, the issue of how to maintain viable populations on Swazi Nation Land will have to be addressed.

scholarly journals Anatomy and micromorphometry of Caryocar brasiliense leaves

Rodriguésia ◽  
2015 ◽  
Vol 66 (1) ◽  
pp. 87-94 ◽  
Author(s):  
Bárbara Helena Ramos ◽  
Kellen Lagares Ferreira Silva ◽  
Ronaldo Rodrigues Coimbra ◽  
Davi Borges Chagas ◽  
Wagner de Melo Ferreira
Keyword(s):  
Environmental Factors ◽  
Glandular Trichomes ◽  
Vegetation Types ◽  
Spongy Parenchyma ◽  
Palisade Parenchyma ◽  
Abaxial Surface ◽  
Savanna Vegetation ◽  
Cerrado Savanna ◽  
Caryocar Brasiliense ◽  
Standard Techniques

The current study aims to study the anatomy and micromorphometry ofC. brasiliense leaves in three Cerrado (savanna) vegetation-types: dense, typical and sparse) - in the municipality of Porto Nacional-TO. Samples were collected, fixed and stored in alcohol 70%. Transverse, longitudinal and paradermal sections of the median leaflet were prepared for anatomical and micromorphometric studies using standard techniques. C. brasiliense leaflets show uniestratified epidermis covered by thick cuticle on the adaxial surface and by paracytic stomata and multicellular non-glandular trichomes on the abaxial surface. The mesophyll is formed by two or three layers of palisade parenchyma adaxially and spongy parenchyma abaxially. The vascular bundle is of the collateral type and the accessory bundles show a sheath extending into the epidermides. The micromorphometric analyses pointed to significant differences in the thickness of both adaxial epidermis and spongy parenchyma in all specimens from the three vegetation-types. The highest averages were found in the leaflets of sparse cerrado plants, suggesting that environmental factors may have an influence over the plants morphological responses.

scholarly journals Observations on Savanna vegetation-types in the Guianas

Vegetatio ◽  
1969 ◽  
Vol 17 (1) ◽  
pp. 271-312 ◽  
Author(s):  
J. Donselaar
Keyword(s):  
Vegetation Types ◽  
Savanna Vegetation ◽  
The Guianas

A New Species of Eugenia subg. Pseudeugenia (Myrtaceae, Myrteae) from Brazilian Atlantic Forest

2020 ◽  
Vol 45 (3) ◽  
pp. 537-543
Author(s):  
Karinne Sampaio Valdemarin ◽  
Jair Eustáquio Quintino Faria ◽  
Fiorella Fernanda Mazine ◽  
Vinicius Castro Souza
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
Conservation Status ◽  
Forest Vegetation ◽  
Vegetation Types ◽  
Flower Buds ◽  
Diagnostic Features ◽  
Closely Related Species ◽  
Lowland Forests ◽  
A New Species

Abstract—A new species of Eugenia from the Atlantic forest of Brazil is described and illustrated. Eugenia flavicarpa is restricted to the Floresta de Tabuleiro (lowland forests) of Espírito Santo state and is nested in Eugenia subg. Pseudeugenia. Considering all other species of the subgenus that occur in forest vegetation types of the Atlantic forest phytogeographic domain, Eugenia flavicarpa can be distinguished mainly by the combination of smooth leaves with indumentum on both surfaces, with two marginal veins, usually ramiflorous inflorescences, pedicels 4.5‐9.7 mm long, flower buds 3.5‐4 mm in diameter, and by the calyx lobes that are 2‐3 mm long with rounded to obtuse apices. Morphological analyses were performed to explore the significance of quantitative diagnostic features between the new species and the closely related species, Eugenia farneyi. Notes on the habitat, distribution, phenology, and conservation status of Eugenia flavicarpa are provided, as well as a key for all species of Eugenia subg. Pseudeugenia from forest vegetation of the Atlantic forest phytogeographic domain.

Evaluation of Renal Function of Apparently Healthy Male Cannabis Smokers of College of Health Sciences, Nnewi Campus, Anambra State, Nigeria

2018 ◽  
Vol 4 (01) ◽  
Author(s):  
Analike Rosemary Adamma ◽  
Emekwue Loveth ◽  
Ogbodo Emmanuel Chukwuemeka ◽  
Ezeugwunne Ifeoma Priscilla ◽  
Onoh Joy Obioma ◽  
...  
Keyword(s):  
Uric Acid ◽  
Cannabis Sativa ◽  
Demographic Data ◽  
Cannabis Use ◽  
Total Carbon ◽  
Total Calcium ◽  
Healthy Male ◽  
Anambra State ◽  
Control Subjects ◽  
Apparently Healthy

The use of Cannabis sativa is on the increase worldwide especially among adolescents and youths. This study investigated the effect of cannabis smoking on renal functions in young and apparently healthy male students of Nnamdi Azikiwe University, Nnewi campus, Anambra state, Nigeria. A total of 60 male (40 cannabis smokers and 20 controls) subjects participated in this study. A well-structured questionnaire was used to obtain the demographic data and anthropometric of subjects. Thereafter, 5mls of fasting blood sample was collected from the subjects into plain container for the estimation of biochemical parameters (creatinine, urea, uric acid, electrolytes). Renal parameters were estimated using standard methods. Data obtained were statistically analyzed using paired student t-test and pearson r correlation. Result showed that the mean serum levels of urea, creatinine, K+, Na+, Cl-, ionized calcium, total calcium, total carbon dioxide, anion gap, and pH were not significantly different in both smokers and control subjects(p>0.05). However, there was significantly higher mean serum level of uric acid (2.42 ± 38.54 vs 1.92 ± 41.61; p<0.05) and total calcium (16.0 ± 0.30 vs 10.24 ± 0.18; p<0.05) in smokers compared with control subjects. Again, BMI was significantly higher in smokers compared with non-smokers (23.96 ± 3.15; p<0.05 Vs 21.95 ± 2.17; p<0.05). Therefore, cannabis use had no deleterious effect on the kidneys, but the significantly higher uric acid levels in the smokers may provide some anti-oxidant protection. However, further studies are necessary to further unravel the full potentials of cannabis use.

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