International Journal of Biodiversity and Conservation最新文献_第4页

Typology of cocoa-based agroforestry systems of the semi-deciduous forest zone in Togo (West Africa) 西非多哥半落叶林带可可农林业系统的类型学研究

International Journal of Biodiversity and Conservation Pub Date : 2020-10-31 DOI: 10.5897/IJBC2020.1426

Oyétoundé Djiwa, H. Pereki, K. Guelly

{"title":"Typology of cocoa-based agroforestry systems of the semi-deciduous forest zone in Togo (West Africa)","authors":"Oyétoundé Djiwa, H. Pereki, K. Guelly","doi":"10.5897/IJBC2020.1426","DOIUrl":"https://doi.org/10.5897/IJBC2020.1426","url":null,"abstract":"In the tropical zone, cocoa-based agroforest systems (CAFS) are considered as a mean to maintain and conserve biodiversiy. In the sub-humid zone of Togo (West Africa), agroforest plant species are key components of the landscape and agricultural lands. Cocoa and coffee agroforest systems contribute directly and indirectly to the livelihoods of an estimated one million people in Togo. Despite this fact, there is only few informations regarding their structure, and typology. The current study assessed the typology, tree structure and diversity of cocoa-based agroforest systems. 213 random plots across the study area were sampled using variable areas (25 × 25 m2, 50 × 50 m2 and 100 × 100 m2) for the survey. 4766 non-cocoa trees belonging to 195 plant species, 140 genera and 47 families were identified. Only woody trees were recorded during this study. The estimated average tree density was 159.21 ± 97.58 trees/ha, whereas the basal area was 54.19 m²/ha. Based on the Importance Value Index (IVI), the floristic composition, and the frequency of species, six groups (from G1 to G6) were discriminated. Each group was a particular type of CAFS. These results are similar to those obtained in the CAFS of West, Central Africa and other tropical zones, confirming CAFS key role in forest trees diversity conservation. \u0000 \u0000 \u0000 \u0000 Key words: Cocoa-based agroforest system, typology, sub-humid, forest tree diversity, Togo.","PeriodicalId":143839,"journal":{"name":"International Journal of Biodiversity and Conservation","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134118020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of cocoa cultivation in the forest-savannah transition zone of western Cte dIvoire 科特迪瓦西部森林-草原过渡带可可种植的影响

International Journal of Biodiversity and Conservation Pub Date : 2020-10-31 DOI: 10.5897/ijbc2020.1430

K. A. N. Koua, Kouassi Bruno Kpangui, Y. S. S. Barima

{"title":"Impact of cocoa cultivation in the forest-savannah transition zone of western Cte dIvoire","authors":"K. A. N. Koua, Kouassi Bruno Kpangui, Y. S. S. Barima","doi":"10.5897/ijbc2020.1430","DOIUrl":"https://doi.org/10.5897/ijbc2020.1430","url":null,"abstract":"The mountainous relief of Western Region of Cote d'Ivoire, as well as large savannas bordering the dense semi-deciduous forests, did not make this part of the country an area suitable for cocoa cultivation. However, in search of forest land for cocoa cultivation, a large influx of people has been observed in this area over the last decade. The objective of this study is to assess the impact of human pressure due to population migrations for cocoa cultivation on vegetation degradation in the western mountainous region. To achieve this, the methodology consisted of digital processing of a set of three Landsat satellite images from 1985, 2002 and 2018, and interviews with cocoa plantation owners in the study area. The results showed that between 2002 and 2018, the annual rates of forest and savannah loss were 8.6 and 0.7% respectively. This loss is to the benefit of new cocoa farms, which are increasing annually by 12.6%. Also, the period 2002 to 2018 corresponds to the period of strong migration of producers in the zone with a settlement rate of 85.5%. \u0000 \u0000 \u0000 \u0000 Key words: Cocoa cultivation, Landscape dynamics, Satellite images, Agricultural migration, Western Cote d'Ivoire.","PeriodicalId":143839,"journal":{"name":"International Journal of Biodiversity and Conservation","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114294166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Small mammal community demography and reproductive seasonality under protection, pastoralism and agriculture in the Serengeti Ecosystem, Tanzania 坦桑尼亚塞伦盖蒂生态系统中受保护的小型哺乳动物群落人口统计和繁殖季节性、畜牧业和农业

International Journal of Biodiversity and Conservation Pub Date : 2020-10-31 DOI: 10.5897/IJBC2020.1397

M. Shilereyo, F. Magige, J. Ogutu, E. Røskaft

{"title":"Small mammal community demography and reproductive seasonality under protection, pastoralism and agriculture in the Serengeti Ecosystem, Tanzania","authors":"M. Shilereyo, F. Magige, J. Ogutu, E. Røskaft","doi":"10.5897/IJBC2020.1397","DOIUrl":"https://doi.org/10.5897/IJBC2020.1397","url":null,"abstract":"This work examined population demography and reproductive seasonality among small mammals under protection, pastoralism and agriculture in the Serengeti Ecosystem in 2017 and 2018. Small mammals were trapped to quantify variation in the proportions of actively breeding individuals, juvenile recruitment and adult sex ratio across land use types and seasons. Breeding peaked in the wet season, reflecting a corresponding underlying peak in resource availability and quality. The mean community proportion of reproductively active individuals was greater for females (60%) than males (40%) and under pastoralism than protection or agriculture. Juvenile recruitment was the highest in the pastoral land in the dry season. Adult sex ratio was biased towards males across all land use types and seasons but towards females in the pastoral than the agricultural land. This concurs with the Trivers-Willard hypothesis that nutritionally stressed females should produce more female offspring. Two generalist and pest species (Mastomys natalensis and Arvicanthis niloticus) dominated the pastoral areas indicating human disturbance. Anthropogenic activities degrade habitats, altering population demographics and promoting habitat generalists and pest species. Protection promotes habitat intactness and reduces opportunistic pests typically abundant in disturbed landscapes. Consequently, enhancing conservation around protected areas can improve diversity and control the abundance of opportunistic pest species. \u0000 \u0000 \u0000 \u0000 Key words: Small mammals, seasonal breeding, juvenile recruitment, adult sex ratio, Serengeti ecosystem, pastoralism, agriculture, protection, rainfall, land use.","PeriodicalId":143839,"journal":{"name":"International Journal of Biodiversity and Conservation","volume":"167 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115131982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Insights of Legal and illegal wildlife hunting in Selous and Rungwa Game Reserves in the South-East and Central Tanzania 在坦桑尼亚东南部和中部的塞卢斯和龙格瓦野生动物保护区合法和非法野生动物狩猎的见解

International Journal of Biodiversity and Conservation Pub Date : 2020-10-31 DOI: 10.5897/ijbc2020.1424

Gastor J. Lyakurwa, Rudolf Mremi, A. Kisingo

{"title":"Insights of Legal and illegal wildlife hunting in Selous and Rungwa Game Reserves in the South-East and Central Tanzania","authors":"Gastor J. Lyakurwa, Rudolf Mremi, A. Kisingo","doi":"10.5897/ijbc2020.1424","DOIUrl":"https://doi.org/10.5897/ijbc2020.1424","url":null,"abstract":"There is a lack of consensus among conservationists regarding the association between trophy hunting and wildlife poaching. Anti-hunting groups argue that trophy hunting is against animal welfare and contributes to wildlife population decline so it must be refuted. On the other hand, pro-hunting groups for advocate regulated hunting as an essential tool for supporting habitat protection and reducing crimes. Regulated hunting creates incentives for conservation through direct and indirect methods and reduces wildlife poaching in areas where ecotourism cannot be practically viable. We used fifteen years' trophy hunting and poaching of African elephant (Loxodonta africana), lion (Panthera leo), Cape buffalo (Syncerus caffer), Common Zebra (Equus quagga), hippopotamus (Common Hippotamus amphibious) and Greater kudu (Tragelaphus strepsiceros) from Selous and Rungwa game reserves in Tanzania. The results showed that there is no evidence of influence of regulated hunting on poaching rate for all species with exception of African elephant. Poaching rate of African elephant was found to be higher than the rate of regulated hunting because of limited number of quota set by Convention on International Trade in Endangered Species (CITES) and international restriction of elephant hunting imposed by the International Union for Conservation of Nature (IUCN). The study suggests that the contentions to stop trophy hunting because of an increase in poaching incidents have no empirical justification. Thus, more effort should be on anti-poaching activities ensuring the adherence to legal hunting regulations.","PeriodicalId":143839,"journal":{"name":"International Journal of Biodiversity and Conservation","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131793912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamics of supply services provided by a protected forest in Cte dIvoire 科特迪瓦一个受保护森林提供的供应服务动态

International Journal of Biodiversity and Conservation Pub Date : 2020-10-31 DOI: 10.5897/ijbc2020.1436

Y. S. S. Barima, Adjo A. Y. Assal e, Anombrou F. A. E. Adiko, Akoua Tamia Madeleine Kouakou, I. Bamba

{"title":"Dynamics of supply services provided by a protected forest in Cte dIvoire","authors":"Y. S. S. Barima, Adjo A. Y. Assal e, Anombrou F. A. E. Adiko, Akoua Tamia Madeleine Kouakou, I. Bamba","doi":"10.5897/ijbc2020.1436","DOIUrl":"https://doi.org/10.5897/ijbc2020.1436","url":null,"abstract":"The classified forest of Haut-Sassandra (CFHS) located in the Center-West of Cote d'Ivoire was infiltrated by the population for agriculture in the 2000s. This forest, initially devoted to timber production before its degradation, is today a vast cocoa-growing area associated with food crops, mainly plantains. The objective of the present study is to assess the overall production of wood, cocoa, and plantain in this state-owned area before (2000) and after its degradation (2019). Processed satellite images covering the CFHS showed an increase in anthropogenic vegetation classes and a decrease in the forest cover class from 2000 to 2019. These transformations resulted in an expansion of cocoa (from 146 t to 18,384 t) and plantain production (from 3,087 t to 187,061 t) at the expense of logging in the CFHS, 16,388 and 3,844 m3 respectively in 2000 and 2019. In addition, there was a loss of about 57% of the expected income from the sale of timber and a 15,912% increase in profits from the sale of agricultural products in 2019 compared to 2000. In such circumstances, it is recommended to implement a sustainable cropping system that will integrate timber production and agricultural production within the same area. \u0000 \u0000 \u0000 \u0000 Key words: Ecosystem service, timber, cocoa production, plantain, anthropogenic pressure, Cote-d’Ivoire, West Africa.","PeriodicalId":143839,"journal":{"name":"International Journal of Biodiversity and Conservation","volume":"568 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133015457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Analysis of forest cover change in Yabello Forest, Borana Zone, Ethiopia 埃塞俄比亚博拉纳地区Yabello森林覆盖变化分析

International Journal of Biodiversity and Conservation Pub Date : 2020-10-31 DOI: 10.5897/ijbc2018.1222

Sisay Taye Gifawesen, D. Feyssa, Gudina Legesse Feyissa

{"title":"Analysis of forest cover change in Yabello Forest, Borana Zone, Ethiopia","authors":"Sisay Taye Gifawesen, D. Feyssa, Gudina Legesse Feyissa","doi":"10.5897/ijbc2018.1222","DOIUrl":"https://doi.org/10.5897/ijbc2018.1222","url":null,"abstract":"Analyzing trends of land use and the change over time is an effective way for assessing the impact on ecosystem function. A study was conducted to detect forest cover change of Yabello forest between 1986 and 2016. The land use maps of 1986, 1996, 2006 and 2016 were derived from satellite images. The spatial pattern analysis indicated that the Yabello land use/land cover (LULC) is at a dynamic state and forests had undergone substantial changes during the last 30 years. Between 1986 and 2016, a considerable decrease in forest land cover was observed (-1919.52 ha). Thus, local communities’ perceptions indicated that recurrent drought, wood extraction and increased human population size were largely responsible for the observed LULC changes in the study area. Generally, the temporal decrease in forest cover and low woody vegetation diversity showed that the Yabello forest was under degradation, which was attributed to anthropogenic factors. Thus, collaborative forest management arrangements with the local communities and improved law enforcement strategies are essential to ease the present human influence on the natural forest and enhance sustainable management. \u0000 \u0000 \u0000 \u0000 Key words: Forest covers change, satellite image, remote sensing, geographical information system (GIS).","PeriodicalId":143839,"journal":{"name":"International Journal of Biodiversity and Conservation","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126334707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Community dependency and perceptions of a protected area in a threatened ecoregion of Myanmar 缅甸受威胁生态区内的社区依赖和保护区观念

International Journal of Biodiversity and Conservation Pub Date : 2020-10-31 DOI: 10.5897/IJBC2020.1429

Thazin Htay, E. Røskaft

{"title":"Community dependency and perceptions of a protected area in a threatened ecoregion of Myanmar","authors":"Thazin Htay, E. Røskaft","doi":"10.5897/IJBC2020.1429","DOIUrl":"https://doi.org/10.5897/IJBC2020.1429","url":null,"abstract":"Local communities living adjacent to protected areas (PA) play a vital role in biodiversity conservation. Understanding communities’ use and perceptions of a PA will increase its conservation effectiveness through reducing anthropogenic pressures and improving park-people relationship. This study assessed local communities’ dependency on the PA and perceptions of benefits and costs accrued from the PA. Using a distance-based stratified random sampling, a total of 230 households from 10 villages around the Indawgyi Wildlife Sanctuary (IWS), in Myanmar, were interviewed. Results showed that 51.3% of local households were dependent on the PA for household income generation and their dependency was determined by the landscape ecology of the residential place. Communities living close to the alluvial area relied the most on the PA due to their lack of permanent agricultural land. Results also showed that although people generated income from the PA, their appreciations of PA’s benefits were not significant. However, communities’ perceptions of the costs incurred from the PA varied significantly with their resource dependency level, distance from the PA, gender and ethnicity. To promote people’s acceptance of the park, this study suggests that future PA management should focus on balancing benefits and costs of the most resource-dependent communities and conservation initiatives should be designed to be supplementary to local economic needs. \u0000 \u0000 \u0000 \u0000 Key words: Conservation, Indawgyi, Myanmar, perceptions, protected area, resource dependency.","PeriodicalId":143839,"journal":{"name":"International Journal of Biodiversity and Conservation","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132810991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Effect of pesticide use on weeds, pollinators and microbial activity in Nzoia Sugar Basin of Western Kenya 农药使用对肯尼亚西部Nzoia糖业盆地杂草、传粉媒介和微生物活性的影响

International Journal of Biodiversity and Conservation Pub Date : 2020-10-31 DOI: 10.5897/IJBC2019.1365

R. Karanja, A. Muia, C. Kariuki, A. Ngigi, Reuben Mukundi Njue, J. Kariuki

{"title":"Effect of pesticide use on weeds, pollinators and microbial activity in Nzoia Sugar Basin of Western Kenya","authors":"R. Karanja, A. Muia, C. Kariuki, A. Ngigi, Reuben Mukundi Njue, J. Kariuki","doi":"10.5897/IJBC2019.1365","DOIUrl":"https://doi.org/10.5897/IJBC2019.1365","url":null,"abstract":"Diversity of flowering plants, pollinators and microbial activity was assessed in five farms of Nzoia Sugar Company and one outgrower farm in Western Kenya. The overarching study objective was to determine differences in species diversity in the sugar farms using agrochemicals and those not using. To sample flowering plants, transects were laid along sugar farms with quadrats 20 m apart. Sweep nets captured fauna flying or attached to the flora. Microbial activities were assessed following application of 2,4 D and Hexazinone in soil from an outgrower farm (OGF) where these herbicides had not been applied before. Microbial activity expressed as formazan concentration following triphenyltetrazolium chloride (TTC) reduction in total Dehydrogenase activity (DHA) test. Results indicated that outgrower farm had higher flowering plant species richness than the sugar farms although diversity of both flowering plants and flower visitors in the sugar farms was higher. Results indicated that hexazinone significantly (p<0.05) increased microbial activity in soils to a high of 172.945 ug g-1 following 7 days incubation while 2,4-D suppressed microbial activity to less than 2 ug g-1 in first three days of incubation. From this study, it is recommended that bee pastures composed of plants frequently visited by bees should be left to grow around farms to increase pollinators and bee hotel structures for cavity nesting bees erected in agro-ecosystems. Use of pesticides on farms should be minimised and integrated weeds and pest management promoted to increase pollinators and beneficial fauna. \u0000 \u0000 \u0000 \u0000 Key words: Pollinators, microorganisms, pesticides, out growers, sugarcane.","PeriodicalId":143839,"journal":{"name":"International Journal of Biodiversity and Conservation","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129957205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Potential of Acacia for poverty alleviation in Rorya District-Tanzania 金合欢在坦桑尼亚罗亚地区减轻贫困的潜力

International Journal of Biodiversity and Conservation Pub Date : 2020-07-31 DOI: 10.5897/ijbc2020.1385

J. Otieno

{"title":"Potential of Acacia for poverty alleviation in Rorya District-Tanzania","authors":"J. Otieno","doi":"10.5897/ijbc2020.1385","DOIUrl":"https://doi.org/10.5897/ijbc2020.1385","url":null,"abstract":"Rorya is one of new districts in Tanzania established in 2007. The district is a reflection of typical rural life in Africa South of Sahara where rural communities inhabiting dry woodlands and dependent on natural resources for their sustenance do not consider indigenous tree species as valuable resources of income. The study was conducted in the low lands of Rorya district-Tanzania to assess contribution of wild Acacia species for sustenance among rural communities. Ethnobtanical survey and standard sapling procedures were used for data collection and description of Acacia distribution patterns. Distribution and diversity of Acacia species is affected by multiple factors some of which could not be addressed by the arithmetic models employed in this study. Of all the sampled Acacia species, A. seyal ranked topmost as potential tree resource for a wider local and cross border market. Unlike other sampled Acacias, A. seyal has comparatively rapid biomass turnover within a short period. Density of A. seyal is much higher in swampy black cotton soils. Despite the economic potential of the species, significant proportion of Acacia woodlands is cleared annually for charcoal. Though Acacia seyal stumps coppices readily, combination of clearing and over grazing can convert the Acacia woodland to typical grasslands within a shorter duration of 20 years. At the same time, there is neither a conservation guideline nor land tenure arrangement in place for sustainable conservation. The study is recommending urgent legislative and land tenure reforms to control the current free access and encroachment that has nastily denuded the wood lands. Acacia being good source of pollen, commercial placement of bee hives is advocated as a supplementary economic activity in parallel with selling of wood fuel. \u0000 \u0000 \u0000 \u0000 Key words: Acacia, Vachellia, Senegalia, sustainable development.","PeriodicalId":143839,"journal":{"name":"International Journal of Biodiversity and Conservation","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125822046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Floristic diversity and stand structural analysis of gallery forests in Ajei highland watershed community forest, North West Cameroon: Implications for forest conservation and management 喀麦隆西北部Ajei高地流域群落林廊道林区系多样性和林分结构分析:对森林保护和管理的启示

International Journal of Biodiversity and Conservation Pub Date : 2020-07-31 DOI: 10.5897/ijbc2020.1411

G. Ajonina, L. F. Temgoua, Mbacham Chenyuei Itagah, N. M. Lyonga, Prince Etame, David Chick Forkam

{"title":"Floristic diversity and stand structural analysis of gallery forests in Ajei highland watershed community forest, North West Cameroon: Implications for forest conservation and management","authors":"G. Ajonina, L. F. Temgoua, Mbacham Chenyuei Itagah, N. M. Lyonga, Prince Etame, David Chick Forkam","doi":"10.5897/ijbc2020.1411","DOIUrl":"https://doi.org/10.5897/ijbc2020.1411","url":null,"abstract":"The study was aimed at contributing to sustainable management of Ajei Highlands Watershed Community Forest, one of the vulnerable and highly threatened biological hotspots remaining within the Cameroon western highlands through an analysis of its woody species diversity and stand structure. The results of inventory of its 12 gallery forest patches through 17 permanent sample plots (20 m x 50 m) with multiple spatial scales subplots (1, 10 and 100 m2) using Whittaker plot sampling method showed that a total of 3644 individuals were recorded (124 species showing exclusive affinity to forest patches, 90 genera and 46 families). Diversity indices were 4.34 and 0.93 for Shannon-Weaver and Simpson indexes, respectively, indicating a highly diverse forest. The mean density was 1820 ± 24 stems/ha and the basal area 27.72 ± 0.04 m2/ha; with mean and maximum diameter of 9.3 and 140 cm, respectively. Species importance value index ranged from 0.35 to 35.19%, the most dominant species being Macaranga occidentalis, Xymalos monospora and Rauvolfia vomitoria. Euphorbiaceae, Apocynaceae, Moraceae and Rubiaceae were the most important families. Although this forest presented a high diversity and a certain floristic richness; few potentially commercial timber species were identified. Management options are prescribed within the framework of a participative management plan promoting watershed protection and habitat restoration, targeting livelihoods sustenance through agroforestry and reforestation activities favoring local tree species. \u0000 \u0000 \u0000 \u0000 Key words: Woody diversity; watershed, gallery forest, community forest, Cameroon.","PeriodicalId":143839,"journal":{"name":"International Journal of Biodiversity and Conservation","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130816913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0