Four new threatened species of Rinorea (Violaceae), treelets from the forests of Cameroon

SummaryFour species of Rinorea are described as new to science; all four species are endemic to evergreen rain forest in Cameroon. Rinorea villiersii Achound. and R. amietii Achound are placed in Rinorea [unranked] Crassiflorae M.Brandt, while, R. dewildei Achound. and R. faurei Achound. fall in Rinorea [unranked] Dentatae Engl. The first species appears to be endemic to the Solé Forest Reserve northeast of Yabassi in Littoral Region. The second and the third species are found mainly in Littoral and South Regions, R. amietii extending to South West Region and R. dewildei extending to Central Region. The fourth species, R. faurei is an endemic of the Santchou Forest Reserve at the foot of Dschang Plateau in West Region. The taxonomic affinities of the four species are discussed, illustrations and a distribution map are provided, and their conservation status is assessed. All four species are threatened with extinction according to the 2012 IUCN categories and criteria.

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Four new threatened species of Rinorea (Violaceae), treelets from the forests of Cameroon

10.1101/2021.05.19.444792 ◽

2021 ◽

Author(s):

Gaston Achoundong ◽

Xander van der Burgt ◽

Martin Cheek

Keyword(s):

Central Region ◽

Rain Forest ◽

Conservation Status ◽

Forest Reserve ◽

The Third ◽

Littoral Region ◽

West Region ◽

South West ◽

Fourth Species ◽

South West Region

Four species of Rinorea are described as new to science; all four species are endemic to evergreen rain forest in Cameroon. Rinorea villiersii Achound., and Rinorea amietii Achound. are placed in Sect. Crassiflorae Wahlert, while Rinorea dewildei Achound. and Rinorea faurei Achound. fall in Rinorea section Dentatae (Engl.) Wahlert. The first species appears to be endemic to the Solé Forest Reserve northeast of Yabassi in Littoral Region. The second and the third species are found mainly in Littoral and South Regions, Rinorea amietii extending to South West Region and Rinorea dewildei extending to Central Region. The fourth species, Rinorea faurei is an endemic of the Santchou Forest Reserve at the foot of Dschang Plateau in West Region. The affinities of the four species are discussed, they are illustrated and mapped, and their conservation status is assessed. All four species are threatened with extinction according to the 2012 IUCN categories and criteria.

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Non-Timber Forest Products and Climate Change Adaptation / Forest Dependent Communities In Bamboko Forest Reserve, South West Region Of Cameroon

10.21203/rs.3.rs-43733/v1 ◽

2020 ◽

Author(s):

Tieminie Robinson Nghogekeh ◽

Chia Eugene Loh ◽

Tieguhong Julius Chupezi ◽

Nghobuoche Frankline Mayiadieh ◽

Piabuo Serge Mandiefe ◽

...

Keyword(s):

Climate Change ◽

Forest Products ◽

Safety Net ◽

Crop Failure ◽

Forest Reserve ◽

West Region ◽

South West ◽

Non Timber Forest Products ◽

Current Change ◽

South West Region

Abstract Background: This study to assess the role of Non-timber forest products was conducted to forest dependent communities around Bamkoko Forest Reserve in the South West Region of Cameroon as a strategy to cope with the impacts of climate change. Methods: Data were collected through household questionnaires, participatory rural appraisal techniques, transect walk and direct field observations. Results: A total of 16 plants species were identified to be harvested by residents around Bamkoko Forest Reserve as None Timber Forest Products. The majority of the respondents (88%) perceived that there has been a change in the climate patterns due to increased temperatures and unpredictable rainfalls. Eru was found to be the most affected livelihood activity (55%) by climate change around Bamboko Forest Reserve. Communities living around Bamboko Forest Reserve were found to use more than one strategy to cope with the adverse effects of climate change. Conclusion: The study concluded that NTFPs still play a safety net role to assist communities in adverse situation such as crop failure under the current change in climate. The need to emphasis sustainable harvesting, improve processing and access to NTFPs markets is crucial.

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Non-Timber Forest Products and Climate Change Adaptation / Forest Dependent Communities in Bamboko Forest Reserve, South West Region of Cameroon

10.21203/rs.3.rs-61744/v1 ◽

2020 ◽

Author(s):

Tieminie Robinson Nghogekeh ◽

Chia Eugene Loh ◽

Tieguhong Julius Chupezi ◽

Nghobuoche Frankline Mayiadieh ◽

Piabuo Serge Mandiefe ◽

...

Keyword(s):

Climate Change ◽

Anthropogenic Activities ◽

Forest Products ◽

Safety Net ◽

Crop Failure ◽

Forest Reserve ◽

West Region ◽

South West ◽

Non Timber Forest Products ◽

South West Region

Abstract Background: Forests are tremendously endowed to combat climate change by protecting people and livelihoods, and creating a base for more sustainable economic and social development. But this natural mechanism is often hampered by anthropogenic activities. It is therefore imperative to take measures that are environmentally sustainable not only for mitigation but also for its adaptation. This study was carried out to assess the role of Non-timber forest products (NTFPs) was conducted among forest-dependent communities around the Bamkoko Forest Reserve in the South West Region of Cameroon as a strategy to cope with the impacts of climate change. Data were collected through household questionnaires, participatory rural appraisal techniques, transect walks, and direct field observations.Results: A total of 18 plant species were identified to be harvested by residents around Bamkoko Forest Reserve as Non-Timber Forest Products. The majority of the respondents (88%) perceived that there has been a change in climate patterns due to increased temperatures and unpredictable rainfalls. Eru was found to be the most affected livelihood activity (55%) by climate change around Bamboko Forest Reserve. Communities living around Bamboko Forest Reserve were found to use more than one strategy to cope with the adverse effects of climate change. Conclusions: The study concluded that non-timber forest products still play a safety net role to assist communities in an adverse situation such as crop failure under the current change in the climate. The need to emphasize sustainable harvesting, improve processing, and access to non-timber forest products markets is crucial.

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A Review on Adenocarpus mannii; a Main Species of the Genus Adenocarpus

Current Traditional Medicine ◽

10.2174/2215083805666190708153634 ◽

2020 ◽

Vol 6 (1) ◽

pp. 3-12

Author(s):

Blaise K. Nganou ◽

Jubie Selvaraj ◽

Pierre Tane ◽

Alex Nchiozem ◽

Ingrid Simo ◽

...

Keyword(s):

North Africa ◽

Southern Italy ◽

Tropical Regions ◽

The Third ◽

West Region ◽

South West ◽

Agriculture Industry ◽

Microbial Infections ◽

Chemotaxonomic Markers ◽

Phytochemical Studies

: The fabaceae are rooted in rosaceae pods known as "vegetables" by the early botanists. They are the third family of angiosperms which includes 642 genus divided into about 18,000 species. The fabaceae family is known as the most important family of the ecosystem as it is indispensable in medicine, agriculture, industry and livestock. The Adenocarpus genus has about 50 species that are frequently found in tropical regions of Northern Africa, the southern part of West Europe and in the central and southern Italy. They are used in traditional medicine for the treatment of several diseases: such as microbial infections, leprosy, scabies, acne, malaria and other plants species are used in agriculture as insecticidal properties. Mainly Adenocarpus mannii species is well represented in the tropical regions of North Africa. It occurs in Angola, Mozambique, Malawi, Guinea, South Africa, Tanzania, and Burundi. In Cameroon, it is encountered in South West Region and West Region. Previous phytochemical studies led to the isolation of several classes of compounds such as flavonoids, alkaloids and triterpenes. Several studies report the phytochemical studies on genus Adenocarpus and chemotaxonomic markers of species of this genus. Herein, we outline all the botanical, pharmacological and phytochemical aspects of Adenocarpus mannii. A brief introduction about fabaceae and the genus Adenocarpus has also been included.

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