Ecological interactions, local people awareness and practices on rodent-borne diseases in Africa: A review.

Several anthropogenic activities exposure humans to the risk of rodent-borne diseases. These activities are but not limited to logging, clearing land for crop cultivation, and consuming rodents. Rodents are a highly diverse mammalian group and harbor many zoonotic diseases. This review focuses on dominant rodent-flea species, rodent-borne zoonotic diseases and awareness and management practices against rodent-borne diseases in Africa. Relevant academic literature spanning from 1974 to 2021 was analysed. Dominant rodent species reported in Africa included:- Mastomys natalensis and Rattus rattus, while dominant flea species included Xenopsylla brasiliensis and Xenopsylla cheopis. Rodents were reported as hosts to a wide range of parasites which can be passed to humans. Rodents were also reported as hosts to some protozoans, trematodes, cestodes, nematodes, bacteria and viruses which are transmissible to humans. Some studies conducted in West Africa revealed good knowledge and practices on plague and Lassa fever diseases among respondents, whereas other studies reported poor practices on Lassa fever management. In part of Southern Africa, some studies reported poor knowledge and practices on plague disease. Further research on rodent-borne disease awareness and management strategies in African countries is desirable.

Prevalence of Yersinia pestis among rodents captured in a semi-arid tropical ecosystem of south-western Zimbabwe.

This study assessed the prevalence of plague bacterium (Yersinia pestis) among rodents captured in Umzingwane and Nkayi districts, south-western Zimbabwe. A total of 44 rodents were captured on three consecutive days per trapping session in the study sites using a removal trapping method in April 2018. Captured rodents were euthanized, and blood samples were collected. The Giemsa stain method was used to detect plague bacteria. The trapping success was not significantly different (χ² = 1.50, df = 1, P = 0.221), 8.5% for the Nkayi district, while in the Umzingwane district, it was 8%. Overall, only one rodent species, i.e., Mastomys natalensis, tested positive for Y. pestis in the Umzingwane district, thus yielding a prevalence rate of 2.3% for the entire study area. This was the most important finding of a Y. pestis-positive rodent in a non-endemic wild area in the Umzingwane district. These results point to a low prevalence of Y. pestis in the study area and the importance of an active plague disease surveillance and monitoring system.

An analysis of threats, strategies, and opportunities for African rhinoceros conservation.

The complexity and magnitude of threats to black (Diceros bicornis) and white (Ceratotherium simum) rhinoceros conservation in Africa have triggered global concerns and actions. In this study, we analyzed (i) threats to rhinoceros conservation including external shocks, (ii) historical rhinoceros conservation strategies in Zimbabwe and Africa, more broadly, and (iii) opportunities for enhanced rhinoceros conservation in Zimbabwe and Africa. A literature search from 1975 to 2020 was carried out using a predefined search protocol, involving a number of filters based on a set of keywords to balance search sensitivity with specificity. A total of 193 articles, which were most relevant to key themes on rhinoceros conservation, were used in this study. The common threats to rhinoceros conservation identified in this paper include poaching, habitat fragmentation and loss, international trade in illegal rhino products, and external shocks such as global financial recessions and pandemics. Cascading effects emanating from these threats include small and isolated populations, which are prone to genetic, demographic, and environmental uncertainties. Rhinoceros conservation strategies being implemented include education and awareness campaigns, better equipped and more antipoaching efforts, use of innovative systems and technologies, dehorning, and enhancing safety nets, and livelihoods of local communities. Opportunities for rhinoceros conservation vary across the spatial scale, and these include (a) a well-coordinated stakeholder and community involvement, (b) strategic meta-population management, (c) enhancing law enforcement initiatives through incorporating real-time surveillance technologies and intruder detection sensor networks for crime detection, (d) scaling up demand reduction awareness campaigns, and (e) developing more certified wildlife crime and forensic laboratories, and information repository for international corporation.

Towards sustainable community conservation in tropical savanna ecosystems: a management framework for ecotourism ventures in a changing environment.

The sustainability of ecotourism ventures under the Community Based Natural Resources Management in Zimbabwe is under stress due to environmental changes emanating from effects associated with socioeconomic factors, climate change and epidemic diseases. Using an in-depth analysis of the Mahenye ecotourism venture from the year 1982 to 2020 as a case study, this study sought to propose a management framework for ecotourism ventures in a changing environment by examining the sustainability of community conservation initiatives in Zimbabwe. Research methods included expert opinion from two natural resources governance academics, desktop research and authors' experiences about Mahenye ecotourism venture. Results indicated that the Mahenye ecotourism venture has faced significant challenges but has been resilient to withstand the shocks such as population increase, exclusion of youths and women, climate change, hyperinflation, donor fatigue, reduced international ecotourist visitation and international hunting bans emanating from socioeconomic and political environmental changes. These shocks have a negative effect on the main elements of an ecotourism venture such as the wildlife resources, amenities, attraction, accessibility, management system, marketing, beneficiaries and linkages. The management framework highlights the interventions that can be made to enable ecotourism ventures in changing environments to remain sustainable. The interventions are promoting strong community cohesion, developing sustainable self-funding mechanisms, promoting multiple sources of income, carrying targeted environmental education programs, capacity building in managing ecotourism in periods of hyperinflation, improved marketing and offering a unique experience, promoting climate smart ecotourism, promoting domestic ecotourism visits, implementing effective feedback systems among stakeholders to decrease uncertainties and lobbying to have hunting bans removed.

Trophy quality trends and hunting effort of selected big game in Chewore South Safari Area, northern Zimbabwe, 2009-2012.

This study was based on a temporal analysis of trophy quality trends and hunting effort in Chewore South Safari Area (CSSA), Zimbabwe, for the period 2009-2012. We selected four of the big five species, namely; buffalo (Syncerus caffer), elephant (Loxodonta africana), the leopard (Panthera pardus) and lion (Panthera leo) for analysis. Existing database of 188 trophies from 2009 to 2011 was reviewed and recorded using the Safari Club International (SCI) scoring system. Further, 50 trophies for 2012 were measured and recorded based on the SCI scoring system. Local ecological knowledge on trophy quality and hunting effort in CSSA was obtained through semi-structured questionnaires from 22 conveniently selected professional hunters in 2012. The results indicated no significant change in trophy quality trends of buffalo, leopard and lion (p > 0.05) over the study period. In contrast, there was a significant decline in elephant trophy quality trend over the same period (p < 0.05). The results showed no significant change in hunting effort over the study period for all the four study species (p > 0.05). Furthermore, seventy-two percent (72%, n = 13) of the professional hunters confirmed that elephant population was declining in CSSA and this was likely due to poaching. Professional hunters perceived trophy hunting as a source of financial capital generation for wildlife conservation (61%, n = 11), as well as positively contributing to the local economy (56%, n = 10). It was concluded that hunting has limited negative impact on species trophy quality trends when a sustainable hunting system is consistently followed in CSSA. CSSA management need to continuously monitor trophy hunting, animal populations and employ adaptive management approach to quota setting and species conservation.

An Assessment of Local People's Support to Private Wildlife Conservation: A Case of Save Valley Conservancy and Fringe Communities, Zimbabwe.

The long-term survival of a protected area (PA) may depend to a greater extent on the goodwill and support of the people residing around it. This study assessed local people's support for private sector driven wildlife conservation in Zimbabwe, using the Save Valley Conservancy (SVC) as a case. Specifically, the objectives of the assessment were threefold: (i) to establish perceptions on the current nature of the relationship between SVC and people living on its edge, (ii) to ascertain the proximate and underlying causes of local resistance to SVC, and (iii) to identify strategies local people employ to resist SVC conservation efforts. Data were collected through a household questionnaire survey during the month of April, 2018. In addition, photographs showing the nature of vandalism and sabotage imposed on the SVC ecosystem by fringe communities were also collected, as part of evidential data. A multistage sampling method was adopted, and this combined purposive sampling to select study wards: random sampling to select villages and systematic sampling to select households (n=71). Our results show that local people rate the current relationship between them and SVC owners as bad, i.e., undesirable interaction. The nature of this perceived bad relationship is attributed to a host of factors, key among them being, lack of wildlife-related benefits and escalation of wildlife-induced costs, which are crucial in determining local community's support for conservation. We conclude that the studied local community's support for private nature conservation is marginal; hence, there is a need for increased efforts by SVC owners to devise realistic incentives including an active engagement of local communities so that they cooperate with conservation efforts.

Towards an Understanding of Conservation-Based Costs, Benefits, and Attitudes of Local People Living Adjacent to Save Valley Conservancy, Zimbabwe.

Communities juxtaposed to protected areas (PAs) often disproportionally accrue the costs of conservation, but they can also receive benefits from the existence of a PA. The extent to which local communities benefit or incur costs as a result of residing next to PAs is of interest to conservationists and policy-makers. This study sought to understand the costs, benefits, and attitudes of local people living adjacent to Save Valley Conservancy (SVC), Zimbabwe. The purpose was to determine whether benefit and loss accrual has a bearing on the levels of illicit wildlife-based activities experienced in the SVC. Data were collected through a household questionnaire survey and key informant interviews from April to July 2014. A three-stage sampling was adopted: firstly, purposive sampling was employed to select wards adjacent to the SVC; secondly, random sampling was used to select villages within the selected wards; and thirdly, systematic sampling was used to select 71 household questionnaire respondents. Snowball sampling was used to select 9 key informants. The study results show that the majority of locals living close to SVC are not deriving discernable benefits and the costs of conservation are escalating influencing negative attitudes towards wildlife conservation, thus causing them to view wildlife as a nuisance. Overall, our results indicate that conservation losses and benefit accrual by local communities influence their attitudes toward SVC and conservation in general. We conclude that costs incurred outweighed the benefits accrued, a situation that triggers a more negative form of reciprocity towards SVC and wildlife conservation. It is recommended that a more socially and economically inclusive management approach based on a stakeholder-driven access and benefit sharing (ABS) framework be instituted to promote a more positive form of reciprocity towards SVC and nature conservation.

Correction: Protected area staff and local community viewpoints: A qualitative assessment of conservation relationships in Zimbabwe.

[This corrects the article DOI: 10.1371/journal.pone.0177153.].

Protected area staff and local community viewpoints: A qualitative assessment of conservation relationships in Zimbabwe.

With the increase in illegal resource harvesting in most protected areas (PAs), the need to understand the determinants and relationships between PAs and local communities to enhance wildlife conservation is increasingly becoming important. Using focus group discussions and interviews, we established the determinants of PA staff-community relationship from both PA staff and local communities' viewpoints, and assessedperceptions of their relationship with each other. The study was guided by the following main research question, 'What is the nature of the relationship between PA staff and local communities and what are the main factors influencing the relationship?' Data were collected through focus group discussions and interviews from four PAs and their adjacent communities in Zimbabwe between July 2013 and February 2014. Our results showed that a total of seven determinants were identified as influencing PA staff-community relationship, i.e., benefit-sharing, human-wildlife conflict, compensation for losses from wildlife attacks, communication between PA staff and local communities, community participation in the management of CAMPFIRE projects, lack of community participation in tourism in PAs, and community perceptions of PA staff or PA staff perceptions of the community. Of the seven, only one determinant, benefit-sharing, was recorded as the main factor that differentially influencesthe perceptions of community and PA staff on their relationship. Furthermore, both the communities and PA staff reported mixed perceptions on their relationship with each other. We conclude that both communities' and PA staff's views on determinants are largely similar in all studied PAs irrespective of PA ownership, management and/or land use. Our findings could be relevant in policy making especially in developing countries in developing PA-community relationship framework in natural resource conservation.