scholarly journals Flora Diversity and Distribution in Falgore Game Reserve, Kano State, Nigeria

Author(s):  
J. I. Amonum ◽  
E. T. Ikyaagba ◽  
S. A. Dawaki

The diversity and distribution of tropical vegetation becomes more important in the face of the ever increasing threats to the tropical ecosystems. This study was carried out to examine the variations in composition and diversity characteristics of the flora species of Falgore Game Reserve in Kano State, Nigeria, with a view to promoting sustainable conservation and management of the game reserve. The study area was stratified into four topographic locations, namely: hill top, sloppy area, level ground and the riparian forest. A one kilometer line transect perpendicular to a baseline (an established tract/road) was laid in each of the four study locations. 50m × 50m sampling plots were systematically established at a predetermined interval of 200m on both sides of the transect; given a total of ten sampling plots in each study site, and a total of forty (40) plots for the study. The 50m× 50m sampling plots were used for the assessment of woody plants species (trees, saplings and shrubs). One meter squarewas used for the assessment of the herbaceous layer (Herbs and Grasses). Plant Species diversity and distribution were estimated using species richness (D), species diversity (H′) and species evenness (E). Data were analyzed using descriptive statistics and Analysis of Variance (ANOVA) at p< 0.05. A total of 3,231.2 individuals/ha distributed in 23 families, 44 genera and 53 species were recorded in the study. Thirty six (36) species (67.9%) were trees, 7 species (13.2%) were shrubs, and 10 species (18.8%) were saplings while 10 species (18%) were herbs. The highest tree species diversity (H′= 2.5) was recorded at the level ground while the least was recorded at the sloppy area, (H1= 2.1). The highest diversity for Shrubs (H1= 1.23) was recorded at the sloppy area while the least (H1 = 0.09) was recorded at the level ground. The highest species diversity of Saplings, (H′= 1.92) was recorded at the level ground while the least (H′ = 1.12) was recorded in the riparian forest. The highest mean value for tree height (14.8m) was recorded at riparian forest while the lowest (10.5m) was recorded at hill top. Findings of this study showed that land use types in association with environmental factors have substantial influences on the density and morphological characteristics of plant species in Falgore Game Reserve.

2015 ◽  
Vol 25 (1) ◽  
pp. 20-29 ◽  
Author(s):  
N. Awasthi ◽  
S. K. Bhandari ◽  
Y. Khanal

Scientific forest management is an emerging need for managing existing natural forests of Nepal on the basis of silvicultural intervention. The study was carried out in Lumbini Collaborative Forest at Rupandehi District of Nepal, where Sal (Shorea robusta) forests are being managed under Irregular Shelterwood System with eighty years of cutting cycle since 2011–2012. The study was purposed to find out the intial effects of silvicultural intervention on plant species diversity and regeneration of Sal forest. The vegetative sampling was done using quadrate method based on the principle of simple random sampling both in the managed as well as the unmanaged parts of forest. The study found out remarkable increase in regeneration as well as decrease in plant diversity in the managed first and second-year stands (Block I and Block II respectively) as compared to the unmanaged stand (Block III) at its initial level of implementation. The mean value of diversity, richness, evenness, dominance index and regeneration of S. robusta varied significantly (p?0.05) between the managed blocks (stands). The seedling density of S. robusta was found higher in the managed blocks (Block I and Block II) as compared to the unmanaged one (Block III) in terms of height class. The study recommends implementation of Irregular Shelterwood System for managing the existing degraded Sal forests of the Terai region of Nepal, however, its long term effects on plant species diversity should be further studied in detail.Banko Janakari, A Journal of Forestry Information for NepalVol. 25, No. 1Page: 20-29


Author(s):  
J. I. Amonum ◽  
S. A. Dawaki ◽  
G. Dachung

This study was carried out to examine the effect of plant species on soil properties in the Falgore Game Reserve (FGR) in Kano State, Nigeria; with the aim to promote sustainable conservation and management of the game reserve and to encourage the use of multiple tree species on farmlands. Strata, systematic and random sampling techniques were employed in order to capture the variability of land cover. Composite samples of soil were randomly collected at a depth of 0-30cm from sample plots of 50 m × 50 m sizes at five points using soil auger. This experiment was replicated four times. The samples were thoroughly mixed and spread out on a dry floor to air dried under the roofed shade. The samples were packaged in polythene bags and taken to the biological science laboratory (Bayero University Kano, Nigeria) for preparation and analysis. The data collected were analyzed using descriptive statistics, ANOVA and Correlation at p< 0.05. Based on this finding, shrubs and tree species diversity were found to be inversely related to soil total Nitrogen, N, % O.C and soil pH (H2O). The nitrogen content of the soil sample was more stable compared with the carbon content across the strata in the study area. The results of this finding revealed that plants species diversity have different effects on soil properties of FGR. Thus, it is recommended that conservation and restoration of threatened plant species should be encouraged for soil amendment. For easy adoption of plant species on farmlands, farmers should be enlightened more on the effects and environmental functions of trees on farm land.


2021 ◽  
Vol 25 (8) ◽  
pp. 1401-1408
Author(s):  
I.M. Goni ◽  
E.A. Agbelusi ◽  
B.G. Ogunjemite ◽  
O.K. Azeez ◽  
A.A. Ogunjinmi ◽  
...  

The study assessed the relative abundance and vegetation structure of African buffalo (Syncerus caffer) including plant parameters: frequency, diameter at breast height (dbh), tree height, diversity, evenness, richness, Margalef, dominance in Kainji Lake National Park. Point – Centered Quarter method was used for woody species enumeration. A total of twenty-eight (28) randomly sampled plots of 150m by 100m given 112 points per plot were established in the study area. The abundance and distribution, tree frequencies, heights, dbh and plant biodiversity indices were calculated using the Paleontological Statistics Software (PAST) for scientific data analysis. The results revealed that relative abundance of African buffalo in both morning and evening of dry and wet seasons in various habitats of the Park were 13.33 ± 4.41 and 11.33 ± 4.40 respectively. The study showed the highest mean value of 21.75 ± 6.94 representing 87 individuals in dry season compared to wet season with mean value of 15.25 ± 5.11 representing 61 individuals. A total of 91 woody plant species and 29 tree families were recorded in African buffalo habitats representing 80, 77, 68 and 59 tree species respectively. The highest average girth size of tree species was class between >10cm -50cm with 59.14 ± 4.06 and the highest mean tree height was height class of >3 - 10m with 91.43 ± 5.44. There were significant differences at (p<0.05) between the values of dbh, tree height, diversity, richness and evenness of plant species recorded in different habitats studied in the Park.


2021 ◽  
Vol 22 (6) ◽  
Author(s):  
Julie Berame ◽  
MINIE L. BULAY ◽  
RISSA M. MERCADO

Abstract. Berame JS, Bulay ML, Mercado RM. 2021. Sustaining angiosperms’ diversity of Bood Promontory and Eco-Park, Butuan City, Philippines: Step towards a community based-protection management program. Biodiversitas 22: 2519-2527. Bood Promontory and Eco-Park (Butuan City, Philippines) is a non-protected 72-hectare agroforestry land, disputed by two barangays. Its existence is rich historically, but the presence of important plant species, the angiosperms, attracted people which caused their number declining recently. Therefore, this study explored the flora using a line transect method through random sampling to provide valuable inputs necessary to back up the promulgation for a community based-protection management program in the area. Results found that 291 angiosperms accounted for 11 tree species, 4 herbs, 1 shrub, and 5 unnamed species. Trees made up 75% of the area, dominated by Mahogany (Swietenia macrophylla, King), and 50% of plant species are unassessed. Yakal, Philippine Teak, Antipolo, Narra, Mahogany, and Molave are in the IUCN Redlist for critically endangered and vulnerable statuses commonly used for construction materials, boat making, furniture, carvings, plywood, and firewood, putting them into peril and destruction if left unprotected. There were no recognized organizations, yet partial participation of the barangay council in forest protection and monitoring management can help angiosperms sustaining their existence. The City Tourism and DENR have to accelerate the claim for protecting the area and implement fully functional participation of locals to sustain and protect the vulnerability of angiosperm species.


2020 ◽  
Vol 8 (7) ◽  
pp. 1056
Author(s):  
Cody Molnar ◽  
Ekaterina Nikolaeva ◽  
Seonghwan Kim ◽  
Tracey Olson ◽  
Devin Bily ◽  
...  

The increasing movement of exotic pathogens calls for systematic surveillance so that newly introduced pathogens can be recognized and dealt with early. A resource crucial for recognizing such pathogens is knowledge about the spatial and temporal diversity of endemic pathogens. Here, we report an effort to build this resource for Pennsylvania (PA) by characterizing the identity and distribution of Phytophthora species isolated from diverse plant species in PA nurseries and greenhouses. We identified 1137 Phytophthora isolates cultured from clinical samples of >150 plant species submitted to the PA Department of Agriculture for diagnosis from 1975 to 2019 using sequences of one or more loci and morphological characteristics. The three most commonly received plants were Abies, Rhododendron, and Pseudotsuga. Thirty-six Phytophthora species identified represent all clades, except 3 and 10, and included a distinct subgroup of a known species and a prospective new species. Prominent pathogenic species such as P. cactorum, P. cinnamomi, P. nicotianae, P. drechsleri, P. pini, P. plurivora, and P. sp. kelmania have been found consistently since 1975. One isolate cultured from Juniperus horizontalis roots did not correspond to any known species, and several other isolates also show considerable genetic variation from any authentic species or isolate. Some species were isolated from never-before-documented plants, suggesting that their host range is larger than previously thought. This survey only provides a coarse picture of historical patterns of Phytophthora encounters in PA nurseries and greenhouses because the isolation of Phytophthora was not designed for a systematic survey. However, its extensive temporal and plant coverage offers a unique insight into the association of Phytophthora with diverse plants in nurseries and greenhouses.


Science ◽  
2014 ◽  
Vol 345 (6204) ◽  
pp. 1574-1574
Author(s):  
A. M. Sugden

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