scholarly journals Assessment of Gmelina, Danta Solid Wood and Plywood Hive Types for Beekeeping

2021 ◽  
Vol 25 (4) ◽  
pp. 625-629
Author(s):  
O.J. Akinbi ◽  
S.A. Adeduntan ◽  
E.O. Toyinbo ◽  
O.T. Alamu

The study was carried out to compare the performance of wood hive types and plywood hive types in three different vegetation types between June 2018 and May 2020 in Akure South local Government of Ondo State, Nigeria. A total of eighteen (18) Kenyan Top Bar hives made from Danta, Gmelina and plywood were constructed at six (6) each per wood types. Two (2) each of Danta, Gmelina and Plywood hives were installed in three locations: Natural Forest, Plantation forest and cocoa farmland. The rate of colonization of each hive was evaluated at 6, 12, 18 and 24 months after installation in the field. The results revealed that plywood hive type was not colonized in the natural forest throughout the period of study while Danta and Gmelina each recorded 50% colonization at the end of the experiment. In plantation forest, each of the Plywood and Gmelina hives recorded 50% colonization at 24 months after installation while bees in Danta hives absconded before 24th months after installation. In cocoa farmland, Gmelina recorded 100% colonization at 24 months, Danta recorded 50% colonization at 24 months and plywood accounted for 100% colonization at 24 months after installation. An improvement was recorded in the colonization performance at 12,18, 24 month after installation of hives. Plywood hives installed in the cocoa farmland and plantation accounted for higher colonization percentage than natural forest.

Author(s):  
O. O. Ogunyemi

A study was carried out to evaluate the species composition and relative abundance of bird species of the natural and plantation forest of Ogbese Forest Rserve, Ekiti State. The study was conducted from April, 2010 to February, 2011 covering both wet and dry seasons. Sample sites were stratified based on the vegetation types and transect count techniques was employed for the evaluation. A total of 52 bird species consisting of 47 resident and 5 immigrant species was recorded. The species composition of birds during the wet and dry seasons was not significantly different. The natural forest vegetation had the highest species diversity and evenness. The relative abundance score of species during the Wet and dry seasons was variable in both habitats. The result of this study has shown that the natural and plantation vegetation types of Ogbese Forest Reserve, Ekiti State. The heterogeneity of flora species in the natural forest compared to the plantation forest might be responsible for the variation. The management of birds in the reserve should take cognisance of the vegetation types for effective conservation of bird species which are resident in the reserve.


2013 ◽  
Vol 9 (1) ◽  
pp. 22-36
Author(s):  
I.E. Esu ◽  
A.U. Akpan-Idio ◽  
P.I. Otigbo ◽  
E.E. Aki ◽  
K.I. Ofem

1970 ◽  
Vol 22 (1) ◽  
pp. 1-10
Author(s):  
O.V. Ayodele ◽  
M.O. Akindele

The study examined agricultural extension activities for arable crops production in Akure South Local Government Area (LGA), Ondo State, Nigeria. Multistage sampling procedure was used to select respondents. Data were collected using interview schedule, and analyzed using descriptive statistics and Chi-square. Most respondents (65.6%) were male, 77.1% had formal education with a mean age of 47 years and an average household size of five (4). Furthermore, 80.2% had less than five hectares of land for arable crop farming while 40% of the respondents farmed for family consumption only. Major source of extension services was government agencies. The most accessed services were; choosing of planting dates and introduction to improved seedlings with a mean score of 3.18 and 3.13 respectively. A significant relationship existed between farmers’ perception about extension service and most socio economic characteristics such as; age (χ2 =57.92, P≤0.05) and farm size (χ2 = 65.283, P≤0.05). The study concluded that extension services in the study area were highly accessed and that farmers have high perception about extension services. It recommends more private agencies participation in extension services.Keywords: Extension service, arable crop farmers and perception.


2019 ◽  
Vol 49 ◽  
Author(s):  
Lisa A. Berndt ◽  
Eckehard G. Brockerhoff

Background: Land cover changes during the recent history of New Zealand have had a major impact on its largely endemic and iconic biodiversity. As in many other countries, large areas of native forest have been replaced by other land cover and are now in exotic pasture grassland or plantation forest. Ground beetles (Carabidae) are often used as ecological indicators, they provide ecosystem services such as pest control, and some species are endangered. However, few studies in New Zealand have assessed the habitat value for carabid beetles of natural forest, managed regenerating natural forest, pine plantation forest and pasture. Methods: We compared the carabid beetle assemblages of natural forest of Nothofagus solandri var solandri (also known as Fuscospora solandri or black beech), regenerating N. solandri forest managed for timber production, exotic pine plantation forest and exotic pasture, using pitfall traps. The study was conducted at Woodside Forest in the foothills of the Southern Alps, North Canterbury, New Zealand, close to an area where the critically endangered carabid Holcaspis brevicula was found. Results: A total of 1192 carabid individuals from 23 species were caught during the study. All but two species were native to New Zealand, with the exotic species present only in low numbers and one of these only in the pasture habitat. Carabid relative abundance and the number of species was highest in the pine plantation, where a total of 15 species were caught; however, rarefied species richness did not differ significantly between habitats. The sampled carabid beetle assemblages were similar across the three forested habitat types but differed significantly from the pasture assemblages based on unconstrained and canonical analyses of principal coordinates. Holcaspis brevicula was not detected in this area. Conclusions: Our results show that managed or exotic habitats may provide habitat to species-rich carabid assemblages although some native species occur only in natural, undisturbed vegetation. Nevertheless, it is important to acknowledge the potential contribution of these land uses and land cover types to the conservation of native biodiversity and to consider how these can be managed to maximise conservation opportunities.


2020 ◽  
Author(s):  
Yadesa Bato ◽  
Tamrat Bekele ◽  
Sebsebe Demissew

Abstract Background: Soil chemical properties have changed under different land-use systems and soil depth layers either by increasing or decreasing. Hence, scientifically information on the soil chemical properties dynamics under different land-use systems and soil depths are crucial for best land management practices, and to avoiding ecological negative impacts of it for sustainable development. The study aimed to evaluate the soil chemical properties dynamics under different land-use systems and soil depths in the central highlands of Ethiopia. The land-use systems included natural forest, four exotic tree plantation species (Eucalyptus globules, Cupressus lusitanica, Grevillea robusta, and Pinus patula), grassland, grazing land, and cropland. Results: The analysis of variance (ANOVA) for the majority of soil chemical properties of OC, TN, Avial. P, soil pH, EC, CEC, and exchangeable bases (Ca, Mg, K, Na) were showed that significant variations among land-use systems (P<0.0001). The highest mean values of OC (3.49 % DM ), TN ( 0.31 % DM) , Avail.P (31.52 mg/kg of soil ), CEC ( 33.63 meq/100gm soil), Exch. Ca (17.13 cmol(+)/kg soil), Exch. Mg (5.37 cmol(+)/kg soil), and Exch. K ( 3.60 cmol(+)/kg soil) were observed under natural forest than others of land-use systems. The results also showed that the lowest mean values of OC (1.47 % DM), TN (0.13 %DM), soil pH (5.38), CEC (18.98 meq/100gm soil), Exch. Ca (9.93 cmol(+)/kg soil), Exch. K (1.20 cmol(+)/kg soil), and Exch. Na (0.22 cmol(+)/kg soil) were recorded under cropland than other land-use systems. The highest mean values of EC (3.47ds/m), and Exch. Na (0.60 cmol(+)/kg soil) were observed under Eucalyptus globulus plantation forest. The overall mean values of OC, TN, Avail.P, CEC, Exch. Mg, Exch. Ca, Exch. K, and Exch. Na accumulation at the topsoil layer was higher than that of the subsoil layer except for soil pH and EC. Conclusion: In general, the majority of soil chemical properties under cropland and Eucalyptus globulus plantation forest were poorer than the soils subjected to other land-use systems which indicated that changes in land use systems were significantly affected soil chemical properties.


2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Samuel N. Mahiga ◽  
Paul Webala ◽  
Mugo J. Mware ◽  
Paul K. Ndang’ang’a

Few studies have explored how human land uses influence and support persistence of forest biodiversity in central Kenya. In the case of the Mount Kenya ecosystem, farmlands and plantation forests are significant land-use types. Using point counts, we assessed bird communities in natural forests, plantation forests, and farmlands in the Nanyuki Forest Block, Western Mount Kenya. Bird point counts were undertaken during two sampling periods (wet and dry season). Compared to farmlands and plantation forest, natural forest had the highest overall avian species richness and relative species richness of all except one forest-dependent foraging guild (granivores) and nonforest species, which occurred frequently only on farmlands. Plantation forest had the lowest relative richness of all avian habitat and foraging guilds. Conversely, specialist forest-dependent species mainly occurred in the structurally complex remnant natural forest. Our study underscores the importance of remnant natural forests for the persistence and conservation of forest biodiversity and risks posed by replacing them with plantation forests and farmlands.


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