Variation in Woody Species Abundance and Distribution in and around Kibale National Park, Uganda

Okiror, Paul; Chono, Jane; Nyamukuru, Antonia; Lwanga, Jeremiah S.; Sasira, Phionah; Diogo, Paul

doi:10.5402/2012/490461

Cited by 15 publications

(16 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This indicated a good seedling recruitment and sapling development potential which is important for future population self-maintenance of the forest reserve. This result is in agreement with a related study done by (Okiror et al 2012). The presence of less mature trees (i.e.…”

Section: Discussionsupporting

confidence: 83%

See 1 more Smart Citation

Implication of forest zonation on tree species composition, diversity and structure in Mabira Forest, Uganda

Weldemariam¹,

Jakisa²,

Ahebwe³

2017

Environ. Earth Ecol.

View full text Add to dashboard Cite

The study aimed to investigate effectiveness of forest management zoning in conserving biodiversity of Mabira forest reserve. The study sites buffer, production, and strict nature reserve management zones were purposively selected. This was undertaken through investigating woody species diversity, composition and structure. A total of 60 sampling plots with a size of 20 m x10 m were used to collect vegetation data. Variables such as woody plant species identification and counts as well as diameter at breast height (DBH) of trees were done. The result depicted a total of 65 woody species; 39 in buffer, 19 in productions and 37 in strict nature reserve. Of these, only 9 trees species were found common to all zones and their Sorensen similarity coefficient was 0.2213. The population structure of the buffer and strict nature reserve zones was found to be a J -shape pattern, whereas the production zone shown an inverted J-shape pattern. Higher woody species diversity was depicted in the buffer and strict nature zones with (H'=2. 73512) and (H'=2. 68412) respectively, and lower in a production zone (H'=1. 63628). The evenness index value of a buffer zone was (J =0. 746574), strict nature (J= 0.743335) and production (J=0. 555719). The production zone had shown higher IVI values followed by buffer and strict nature reserve zone. The most important woody species identified based on their IVI value were Broussonetia papyrifera (Production), Acalypha neptunica (Buffer), Funtumia Elastica (strict nature reserve). The existing forest management is effective in conserving the biodiversity of the forest reserve. Nevertheless, the production zone was still suffering from exploitation of the surrounding community, hence serve for protecting the remaining management zones from further human interference. Further investigation is also required on the adjacent community perceptions of the forest management zoning.

show abstract

Section: Discussionsupporting

confidence: 83%

“…The importance value index (IVI) is an aggregate index that summarizes the density, abundance, and distribution of a species (Okiror et al 2012). This reflects the degree of dominance and abundance of a given species in relation to other species (Giliba et al 2011;Kent and Coker 1992).…”

Section: Discussionmentioning

confidence: 99%

Implication of forest zonation on tree species composition, diversity and structure in Mabira Forest, Uganda

Weldemariam¹,

Jakisa²,

Ahebwe³

2017

Environ. Earth Ecol.

View full text Add to dashboard Cite

show abstract

“…The poor enforcement of the policy prescription prohibiting agricultural activities within the buffer zone may have heightened the problem of deforestation in the Tankwidi riparian basin (Government of Ghana, 2011). The result ( Table 5) further showed that the riparian forest in forest reserve (FR) has high woody plant diversity than in farmland (FA) (Ceperley et al, 2010;Okiror et al, 2012) and on that basis, the first null hypothesis of the study is accepted. Species diversity is always higher in less disturbed reserves than on farmlands where clearing of land for crop cultivation and burning causes disappearance of woody plants (McKinney 2008;Okiror et al, 2012).…”

Section: Changes In Riparian Woody Species Richness and Diversitymentioning

confidence: 93%

“…The richness of riparian buffer in disturbed landscapes are normally hindered due to the limitations in the flow of nutrients' and seeds from vegetation in the adjacent landscape (McKinney, 2008;Okiror et al, 2012). The finding was however, surprising as riparian forest is designated as protected area in all landscapes under the freshwater buffer zone policy of Ghana (Government of Ghana, 2011).…”

Section: Changes In Riparian Woody Species Richness and Diversitymentioning

confidence: 99%

“…Studies have shown that the intensification of farming and commercialization of agriculture cause deforestation and reduce the plant diversity on farmlands (Ceperley et al, 2010;Okiror et al, 2012). In other studies, the mosaic nature of heterogeneity of farmlands supports high plant diversity (Fahrig et al, 2011;Traore et al, 2012;Morelli, 2013).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Threat of agricultural production on woody plant diversity in Tankwidi riparian buffer in the Sudanian Savanna of Ghana

Boakye¹,

Hyppolite²,

Barnes³

et al. 2015

Int. J. Biodivers. Conserv.

View full text Add to dashboard Cite

Riparian forest buffers (RF) are integrative part of the savanna agricultural landscape. However, they are under threat of deforestation from agricultural intensification. To ascertain the impact of the deforestation, this study used remote sensing techniques and field inventorying to assess riparian woody plant diversity on farmland (FA) and forest reserve (FR) along Tankwidi rivercourse in the Sudanian savanna of Ghana. Post-classification analysis of Landsat images revealed a reduction in forest cover from 1986 (23%) to 2014 (7%) in the river basin. Ground survey of sixty randomly selected plots (500 m 2 per plot) equally divided between FA and FR along the river in a 50 m buffer zone showed a reduction in the number of woody species (diameter ≥ 5 cm) from FR (40) to FA (19). Anogeissus leiocarpus and Mitragyna inermis were the most abundant species in both FR and FA. Shannon-Wiener Index for species diversity reduced from FR (2.5±0.09) to FA (1.8±0.14). Within FR, there were more species (58%) in the lower diameter class (5 to 15 cm) than the higher diameter classes (15 to 50 cm) suggesting successful regeneration. The reverse was observed in FA where the individuals in the lower diameter class were fewer (26%) than the higher diameter classes. Reduction in species density from FR (355±21) to FA (146±11) will increase the surface exposure of the riparian area in farmland to heighten risks to climate disasters such as fires and flooding. Managing the risks will not be possible unless a conscious effort is made to educate farmers on the roles of RF, replanted to enhance diversity or riparian buffer excluded from farming for vegetation recovery.

show abstract

Comparative Analysis of Woody Composition of Farmlands and Forest Reserve Along Afram River in a Tropical Humid Savanna of Ghana: Implications to Climate Change Adaptation

Boakye

Hyppolite

Barnes

et al. 2016

Climate Change Management

View full text Add to dashboard Cite

Variation in Woody Species Abundance and Distribution in and around Kibale National Park, Uganda

Cited by 15 publications

References 30 publications

Implication of forest zonation on tree species composition, diversity and structure in Mabira Forest, Uganda

Implication of forest zonation on tree species composition, diversity and structure in Mabira Forest, Uganda

Threat of agricultural production on woody plant diversity in Tankwidi riparian buffer in the Sudanian Savanna of Ghana

Comparative Analysis of Woody Composition of Farmlands and Forest Reserve Along Afram River in a Tropical Humid Savanna of Ghana: Implications to Climate Change Adaptation

Contact Info

Product

Resources

About