scholarly journals Floristic diversity and management of fodder resources of the natural pastures of the Savanna Highlands of Western Cameroon

2020 ◽  
pp. 28-34
Author(s):  
Wouokoue Taffo Junior Baudoin ◽  
Avana Tientcheu Marie Louise ◽  
Hamawa Yougouda ◽  
Nguetsop Victor Francois ◽  
Tsobou Roger ◽  
...  
Keyword(s):  
Carrying Capacity ◽  
Sustainable Management ◽  
Woody Plants ◽  
Abundant Species ◽  
Imperata Cylindrica ◽  
Floristic Diversity ◽  
Floristic Inventory ◽  
Pastoral Value ◽  
Specific Contribution ◽  
Harvest Method

Sustainable management of pastoral resources requires knowledge in terms of floristic diversity and productivity of the rangelands. The objective of the present study carried out in the Bamboutos Mountains was to assess the floristic diversity and carrying capacity of the natural pastures. Floristic inventory was done using the method of quadrat point aligned in 15 plots of 400 m². Aerial phytomass of herbaceous plants was measured by the full harvest method. A total of 74 species, including 09 woody plants belonging to 56 genera and 20 families were recorded. The number of taxa recorded in the plots varied from 11 to 36 species. Imperata cylindrica with a specific contribution of presence of 17.45% was the most abundant species in the rangeland. The species-richest families were Poaceae, Fabaceae, Asteraceae and Cyperaceae. The calculated pastoral value of the pasture was 56.21%. These pastures were dominated by phanerophytes (29.72%) and therophytes (24.32%). The forage productivity of the grazed area, estimated based on the regrowth biomass was 6498.57 kg DM/ha while the carrying capacity of the rangeland was 2.31 TLU/ha. These results showed that the fodder potential of the Bamboutos Mountains is enough diversified but remains under exploited.

scholarly journals Mitogenomic analysis of diversity of key whitefly pests in Kenya and its implication to their sustainable management

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Fathiya M. Khamis ◽  
Fidelis L. O. Ombura ◽  
Inusa J. Ajene ◽  
Komivi S. Akutse ◽  
Sevgan Subramanian ◽  
...  
Keyword(s):  
Sustainable Management ◽  
Management Strategies ◽  
Spatial Models ◽  
Abundant Species ◽  
Plant Viruses ◽  
Pest Species ◽  
Agricultural Pests ◽  
Protein Coding ◽  
Aleyrodes Proletella ◽  
Aleurodicus Dispersus

AbstractWhiteflies (Hemiptera: Aleyrodidae) are devastating agricultural pests of economic importance vectoring pathogenic plant viruses. Knowledge on their diversity and distribution in Kenya is scanty, limiting development of effective sustainable management strategies. The present study is aimed at identifying whitefly pest species present in Kenya across different agroecological zones and establish predictive models for the most abundant species in Africa. Whiteflies were sampled in Kenya from key crops known to be severely infested and identified using 16S rRNA markers and complete mitochondrial genomes. Four whitefly species were identified: Aleyrodes proletella, Aleurodicus dispersus, Bemisia afer and Trialeurodesvaporariorum, the latter being the most dominant species across all the agroecology. The assembly of complete mitogenomes and comparative analysis of all 13 protein coding genes confirmed the identities of the four species. Furthermore, prediction spatial models indicated high climatic suitability of T. vaporariorum in Africa, Europe, Central America, parts of Southern America, parts of Australia, New Zealand and Asia. Consequently, our findings provide information to guide biosecurity agencies on protocols to be adopted for precise identification of pest whitefly species in Kenya to serve as an early warning tool against T. vaporariorum invasion into unaffected areas and guide appropriate decision-making on their management.

Komposisi Tumbuhan Air dan Tumbuhan Riparian di Danau Sentani, Provinsi Papua

2017 ◽  
Vol 2 (2) ◽  
pp. 33
Author(s):  
I Gusti Ayu Agung Pradnya Paramitha ◽  
Riky Kurniawan
Keyword(s):  
Aquatic Ecosystems ◽  
Riparian Vegetation ◽  
Aquatic Macrophytes ◽  
Abundant Species ◽  
Imperata Cylindrica ◽  
Survey Method ◽  
Riparian Zones ◽  
Ceratophyllum Demersum ◽  
Transect Line ◽  
The Status

<strong>Composition of Aquatic Macrophytes and Riparian Vegetation in Lake Sentani, Papua Province.</strong> Macrophytes and riparian vegetation play an important role in maintaining the balance of aquatic ecosystems. The loss of vegetation components can lead to increased sedimentation and change the microhabitat in the waters. This research aimed to obtain the composition of aquatic macrophytes and riparian vegetation in Lake Sentani, as well as to determine the status of waters and the characteristics of riparian zones in Sentani Lake. The research was conducted from September to October 2014. The sampling of aquatic macrophytes and riparian vegetation was conducted at 5 stations: St.1 (Doyo Lama), St.2 (Donday), St.3 (Deyau), St.4 (Kalkotte), and St. 5 (Jaifuri). Data of aquatic macrophytes was taken using square plot (1 x 1 m2) of 15 plots, while riparian vegetation data used survey method with 10 m transect line from the shoreline. The results showed that there were 10 species of aquatic macrophytes from 8 families and 30 species of riparian vegetation from 18 families. Based on these aquatic macrophytes and riparian vegetation, Lake Sentani is categorized as eutrophic, with the dominant macrophyte being hornworts (Ceratophyllum demersum L.; 135 individuals). Station 4 (Kalkotte) has the largest number of individual aquatic macrophytes (96 individuals). Cogongrass (Imperata cylindrica (L.) Beauv.) was found to be the most abundant species of riparian vegetation in all stations (190 individuals). This is related to the shoreline of Lake Sentani which is largely a sandy soil. Station 5 (Jaifuri) has the largest number of species and the largest number of individual riparian vegetation (344 individuals from 20 species). <br />

scholarly journals The Urgency of Strengthening the Rights and Participation of Indigenous Peoples in Realizing Sustainable Management of Customary Forest

2021 ◽  
Vol 23 (3) ◽  
pp. 399-416
Author(s):  
Annisa Indah Nuari ◽  
Sapto Hermawan
Keyword(s):  
Forest Management ◽  
Indigenous Peoples ◽  
Carrying Capacity ◽  
Sustainable Management ◽  
Central Government ◽  
Legal Research ◽  
Conceptual Approach ◽  
Secondary Sources ◽  
Sectoral Approach ◽  
Democratic Decentralization

This article aims to analyze the urgency of strengthening the rights and participation of indigenous peoples in customary forest management in Indonesia. Law No. 41/1999 on Forestry, which is still centralized in nature, has limited the rights and roles of indigenous peoples in managing their customary forests. The regulation regarding customary forest in the Forestry Law is inconsistent with protecting ecosystem carrying capacity and democratic decentralization. This article was prepared using a normative legal research methodology in which a statutory and conceptual approach is used. Then, secondary sources of legal material were analyzed and qualified to be narrowed down to answer existing juridical problems. The results show that the rights and roles of indigenous peoples in managing their customary forests are still minimal. Customary forest management centered on the central government and prioritized a sectoral approach can have implications for exploitation that ignores the interests of conserva-tion and sustainability of customary forest natural resources.

scholarly journals Food Forage Potential and Carrying Capacity of Kemampo Forest Area with Special Objectives (KHDTK) as Sambar deer (Rusa unicolor) Captive Breeding Area

2019 ◽  
Vol 24 (1) ◽  
pp. 94-102
Author(s):  
Fatahul Azwar ◽  
Burhanuddin Masy'ud ◽  
R Gartesiasih
Keyword(s):  
Carrying Capacity ◽  
Captive Breeding ◽  
Acacia Mangium ◽  
Forest Area ◽  
Imperata Cylindrica ◽  
Size Estimation ◽  
Breeding Area ◽  
Melastoma Malabathricum ◽  
Sambar Deer ◽  
Forage Diversity

This research was carried out to identification and analysis of food forage diversity, productivity and carrying capacity of Kemampo special purpose forest area in South Sumatera as sambar deer captive breeding area. Diversity food forage for sambar deer were analysis systematically by using vegetation analysis with 10 units of square plot models for each growth level of vegetation with different size. Estimation of food forage productivity  were done by using 10 units of square plot models (1x1 m2) for each harvesting periode 20 days, 30 days and 40 days. Result of reseach was showed that there are 13 species of food forage has identification as sambar deer feed and five species among them were identification as urgent feed and high palatability for sambar deer, i.e Paspalum conjugatum, Imperata cylindrica, Acacia mangium, Vitex pubescens, dan Melastoma malabathricum. The avarage of food forage productivity for each harvesting periode 20 days, 30 days and 40 days were 48,40 kg/m2/day, 57,89 kg/m2/day and 62,78 kg/m2/day, with avarage value of food forage productivity  was  56,66 kg/m2/day or  152.982 kg/ha/year, and  458.946 kg/3 ha/year. According to this value of food forage productivity, and by using the assumptiom of dayly food need of sambar deer about 23 kg/head/day, so  the carrying capacity of Kemampo forest area were estimated about 13,968 individuals of sambar deer per 3 hectares per year or  per hectare  the area could retain everyday about 13 individuals of sambar deer. Keywords: rusa samsambar deer, food forage, productivity, carrying capacity, captive breeding

scholarly journals FLORISTIC DIVERSITY OF THE GROUPING AT PISTACIA ATLANTICA IN THE REGION OF NAÂMA (ALGERIA)

2021 ◽  
Vol 10 (19) ◽  
pp. 466-475
Author(s):  
Abdelkrim Benaradj ◽  
Hafidha Boucherit ◽  
Okkacha Hasnaoui
Keyword(s):  
Arid Regions ◽  
Southern Region ◽  
Floristic Diversity ◽  
Pistacia Atlantica ◽  
Floristic Inventory ◽  
Biological Analysis ◽  
Biogeographic Analysis

Floristic inventory carried out on grouping range at Pistacia atlantica in southern region of Naama makes it possible to identify 135 taxa, divided into 36 families and 105 genera. This large specific diversity, belong to 36 botanical families, best represented (48%) being Asteraceae, Poaceae, Fabaceae and Brassicaceae. The biological analysis shows predominance of Therophytes with 68 species, i.e. 50%. This predominance is characteristic of arid regions vegetation which adapt to saharan and steppe environment. The biogeographic analysis reveals a predominance of three biogeographical types (mediterranean, saharan and endemic) with a rate of 64% or 87 species. This biogeographic distribution reveals floristic heterogeneity and confirms mediterranean affinity of region flora, which combines three sets: high steppe plains, saharan atlas and Saharan border to South.

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