Diversity and status of carnivorous plants in Uganda: towards identification of sites most critical for their conservation

Kalema, James; Namaganda, Mary; Bbosa, Godfrey S.; Ogwal-Okeng, Jasper

doi:10.1007/s10531-016-1177-8

Cited by 8 publications

(5 citation statements)

References 21 publications

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“…The CFRs have comparatively high oristic richness and diversity (Table 1) with the recorded species representing about 8.7% of the 4800 plant species known in Uganda (Kalema et al 2016). The diversity indices within CFRs are above the threshold (2.0) for high diversity (Magurran 2004).…”

Section: Discussionmentioning

confidence: 99%

Comparative analysis of floristic richness and diversity in six central forest reserves of north eastern Uganda

Ojelel,

Katuura,

Mucunguzi

et al. 2024

Preprint

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As the extinction risk of plants increases globally, there is need to prioritize areas with high floristic richness and diversity to inform the design of evidence-based conservation interventions. As such, this study aimed to; (i) determine the floristic richness and diversity in six central forest reserves of north eastern Uganda and (ii) evaluate the similarity and complementarity of floristic composition. Data was collected from nested quadrats (20 x 20 m for trees, 10 x 10 m for shrubs and 5 x 5 m for herbaceous climbers, forbs and grasses) placed at intervals of 100 m along a transect of 1000–1500 m. Species richness, diversity and evenness were determined for each forest reserve. Binary similarity coefficients were computed because only presence/absence data of plant species was recorded. A sum of 417 plant species in 76 families were recorded representing 8.7% of known vascular plants reported in Uganda. All the CFRs had high diversity indices ranging from 4.2 in Kano CFR to 4.47 in Bululu hill CFR. In terms of floristic similarity, the CFRs clustered into two groups namely Onyurut and Ogera hills cluster and Akur, Kano, Bululu hills and Mount Moroto cluster. The CFRs complement one another by supporting plant species not recorded elsewhere. Notably, three CFRs (Bululu hills, Mount Moroto and Onyurut) account for 81.53% of the plant taxa. Addition of the fourth (Ogera hills) accommodates nearly 90% of the species and the fifth (Akur CFR) accounts for more than 95% of the species. The highest threat level on taxa in these CFRs is Vulnerable (4 species) and Near Threatened (4 species) with 137 Least Concern and 270 Not Evaluated. The CFRs in NE Uganda have richness and floristic diversity with up to 8.7% of the known plants in Uganda present. The two similarity clusters depict variation in altitudinal, proximity and climatic conditions. Five CFRs are required to conserve 95% of the species recorded. There is need to assess the population of the threatened species, and investigate the edaphic factors which influence plant distribution.

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Section: Discussionmentioning

confidence: 99%

Comparative analysis of floristic richness and diversity in six central forest reserves of north eastern Uganda

Ojelel,

Katuura,

Mucunguzi

et al. 2024

Preprint

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“…Uganda is rich in biodiversity, with a high species richness per unit area and a biodiversity index of 0.209, ranking 34 th in the world and eighth in Africa (Butler, 2016). Uganda's indigenous flora has about 4,816 species of higher plants (Kalema et al, 2016). Solanaceae is one of the species-rich families in the world with 101 genera, of which genus Solanum is the most species diverse (Knapp et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Temperature and rainfall influence the distribution, diversity and habitat suitability of Solanum species of the Leptostemonum clade in Uganda

Kawuma,

Stedje,

Katuura

et al. 2024

Preprint

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Solanum species of the Leptostemonum clade were mapped, and predictions made on the distribution and possible habitats using a set of environmental variables. The variables were temperature, rainfall, slope, soil and land use/cover. During field surveys, location presence data (geocoded with Germin S90 GPS) was collected. Additional data were obtained from herbarium specimens kept at Makerere University Herbarium and others obtained from the Global Biodiversity Information Facility. Distribution maps were generated in ArcMap software. Using MaxEnt software (version 3.3.3), spatial distribution models were generated. Model evaluation was based on the generated Area Under Curve (AUC) of both the testing and training gain data. The Jackknife test was used to assess the importance of each environmental variable in predicting species occurrence. Eighteen species were analyzed out of the 20 known to occur in the country. Solanumchrysotrichum was recorded as a new species to Uganda, thus, a new total of 21 species known for the country. Presence of S. forskalii in Uganda was confirmed. Most of the species occur in disturbed habitats in the land use/cover areas defined as croplands, tree cover and grasslands. The highest species richness was recorded in south western Uganda with a total of 11 species. Karamoja had unique diversity with species restricted to the region and these included S. forskalii, S. lanzae, S. coagulans and S. hastifolium. The environmental parameters selected for the study when used in combination had a good fit in predicting the occurrence of species as revealed by the high AUC values. Temperature and rainfall were the most useful variables in predicting occurrence of Solanum species. Karamoja region and south western Uganda are hotspots for conservation of the spiny Solanum. Periodic field surveys should be carried out to assess the effect of climate change and anthropogenic disturbance on the occurrence of the species.

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“…Due to the confluence of diverse climates and altitudinal ranges in its territory, creating a variety of habitats, relative to its area, Uganda is a biodiverse country, with 1742 terrestrial vertebrate species [34] 4816 plant species [35,36], 1300 species of butterflies, and 260 dragonfly species [34]. However, the country lost half of its overall biodiversity value from 1975 to 1995 [37] due to habitat loss, agricultural encroachment, and expansion, climate change effects, and over-harvesting of resources, among others.…”

Section: Introductionmentioning

confidence: 99%

Analysing and Applying Stakeholder Perceptions to Improve Protected Area Governance in Ugandan Conservation Landscapes

Omoding¹,

Walters²,

Andama³

et al. 2020

Land

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Given the diversity of active institutions and stakeholders in a landscape, and the difficulties in ensuring inclusive decision-making, evaluating landscape governance can help surface and address underlying issues. In the context of two protected area landscapes in Uganda, where landscape approaches are being implemented through a wider project on landscape governance, we analyse stakeholder perceptions of inclusive decision-making and then use this evaluation to stimulate dialogue amongst stakeholder groups in each landscape. We ask, how can capturing, analysing, and collaboratively applying people’s perceptions address inclusive decision-making in landscape governance? We collected and analysed perceptions using SenseMaker®, a software package that enables analysis of micronarratives (stories) from the field based on how respondents classify their own stories, using triads, dyads, stones, and multiple-choice questions. This self-categorisation by the respondent reduces bias in the analysis and allows the micronarrative to be cross-examined in a variety of ways when analysed using Sensemaker. This analysis created an integrated view of the stakeholder’s perceptions about inclusive decision-making in landscape governance. The results show large portions of the respondents feel their voices are neglected, and management of the landscape is poor in Mount Elgon, while in Agoro-Agu, it is the opposite trend. During a community feedback process, reasons for these trends were discussed and solutions proposed. Some of the underlying factors include historical relationships with park authorities and displacement during park creation. To more precisely answer our research question, one could have extended stays in the communities studied in these landscapes, using ethnographic methods including interviews and participant observation; nonetheless, our method, including the feedback process, was an innovative and important way to confront our findings with the informants directly and foster collaborative action. We conclude that understanding people’s perceptions, including through participatory feedback, can significantly inform and improve management decisions, help resolve conflicts, and facilitate dialogue between different stakeholders in the landscape.

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Diversity and status of carnivorous plants in Uganda: towards identification of sites most critical for their conservation

Cited by 8 publications

References 21 publications

Comparative analysis of floristic richness and diversity in six central forest reserves of north eastern Uganda

Comparative analysis of floristic richness and diversity in six central forest reserves of north eastern Uganda

Temperature and rainfall influence the distribution, diversity and habitat suitability of Solanum species of the Leptostemonum clade in Uganda

Analysing and Applying Stakeholder Perceptions to Improve Protected Area Governance in Ugandan Conservation Landscapes

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