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Much of the ecosystem description is avialable from the Waterberg District Bioregional Plan (Draft 2016), which should likely be supplied as an annex.
Very little resource is available for describing the intended management plans outlined as expected to be described in sections 14.2 and 14.3
Additionally, much of the questions from 14.3 ask for the same information, however it is expected that this should be at a level of detail unavailable from the current resources.
The SANBI 2018 National Biodiversity Assessment data outlines a number of Biodiversity areas and their conservation status.
Whilst the vast majority of the study area is covered by Central Bushveld type bioregions, there are concentrations of endemic Mesic Highveld Grassland, with adiditonal minor areas of Mopane Bioregion and Alluvial Vegetation.
The following table outlines the coverage of the various biomes within the study area and their coverage areas within the respective biosphere reserve zones.
NBA Name | BIOME | BIOREGION | Threat Status | Endemic | Core ha | Buffer ha | Transition ha |
---|---|---|---|---|---|---|---|
Central Sandy Bushveld | Savanna | Central Bushveld Bioregion | Least Concern | Endemic | 69184.7363 | 290942.9775 | 199022.8680 |
Dwaalboom Thornveld | Savanna | Central Bushveld Bioregion | Least Concern | Likely not endemic | 98063.7013 | 135573.5594 | 26432.3271 |
Dwarsberg-Swartruggens Mountain Bushveld | Savanna | Central Bushveld Bioregion | Least Concern | Likely not endemic | 0.0000 | 0.0000 | 0.0000 |
Limpopo Ridge Bushveld | Savanna | Mopane Bioregion | Least Concern | Likely not endemic | 0.0000 | 0.0000 | 0.0000 |
Limpopo Sweet Bushveld | Savanna | Central Bushveld Bioregion | Least Concern | Likely not endemic | 46180.4908 | 100517.8188 | 6548.8884 |
Loskop Mountain Bushveld | Savanna | Central Bushveld Bioregion | Least Concern | Endemic | 0.0000 | 0.0000 | 0.0000 |
Madikwe Dolomite Bushveld | Savanna | Central Bushveld Bioregion | Least Concern | Likely not endemic | 8498.9018 | 9825.0726 | 279.1786 |
Makhado Sweet Bushveld | Savanna | Central Bushveld Bioregion | Least Concern | Endemic | 6742.3491 | 51744.3321 | 249152.4578 |
Mamabolo Mountain Bushveld | Savanna | Central Bushveld Bioregion | Least Concern | Endemic | 11588.9947 | 5296.4553 | 3144.5685 |
Musina Mopane Bushveld | Savanna | Mopane Bioregion | Least Concern | Likely not endemic | 0.0000 | 0.0000 | 0.0000 |
Pilanesberg Mountain Bushveld | Savanna | Central Bushveld Bioregion | Least Concern | Endemic | 0.0000 | 0.0000 | 0.0000 |
Polokwane Plateau Bushveld | Savanna | Central Bushveld Bioregion | Least Concern | Endemic | 13706.1334 | 25659.3271 | 47152.4967 |
Poung Dolomite Mountain Bushveld | Savanna | Central Bushveld Bioregion | Least Concern | Endemic | 5762.5126 | 0.0000 | 0.0000 |
Roodeberg Bushveld | Savanna | Central Bushveld Bioregion | Least Concern | Unsure - needs research | 53979.1317 | 177118.0387 | 55718.3657 |
Springbokvlakte Thornveld | Savanna | Central Bushveld Bioregion | Vulnerable | Endemic | 19631.3207 | 67767.0031 | 16453.5569 |
Strydpoort Summit Sourveld | Grassland | Mesic Highveld Grassland Bioregion | Least Concern | Endemic | 5381.8828 | 2216.0610 | 0.0000 |
Subtropical Alluvial Vegetation | Azonal Vegetation | Alluvial Vegetation | Least Concern | Likely not endemic | 3394.0570 | 9643.3498 | 1042.8609 |
Waterberg-Magaliesberg Summit Sourveld | Grassland | Mesic Highveld Grassland Bioregion | Least Concern | Endemic | 27402.8233 | 14523.8759 | 0.0000 |
Waterberg Mountain Bushveld | Savanna | Central Bushveld Bioregion | Least Concern | Endemic | 229827.2509 | 464327.8758 | 0.0000 |
Western Sandy Bushveld | Savanna | Central Bushveld Bioregion | Least Concern | Unsure - needs research | 114270.9218 | 193245.4780 | 10513.3958 |
Zeerust Thornveld | Savanna | Central Bushveld Bioregion | Least Concern | Likely not endemic | 0.0000 | 0.0000 | 0.0000 |
The biosphere reserve also includes coverage of multiple wetland areas.
Zone | ha of wetlands |
---|---|
core | 7276.7996 |
buffer | 2230.2161 |
transition | 95.7860 |
The proposed boundary encompasses regions of strategic water areas as outlined below.
Zone | ha of strategic water area coverage |
---|---|
core | 128434.4365 |
buffer | 327350.116 |
transition | 17854.2634 |
See also: Waterberg District Bioregional Plan (Draft 2016) - 2.4 Vegetation and Threatened Ecosystems
Note: It would be possible to include aggregation of national landcover coverage by type, however I think this is a significant processing requirement for a result which adds little value and is a large inclusion which may degrade the results. Referencing the existing nomination landcover and vegetation maps should be sufficient.
A broad outline of the landcover change trends was produced with the trends.earth QGIS plugin produced by Conservation International, which analyses data available via the Google Earth Engine API.
The resulting data is a Land Degradation Neutrality, Sustainable Development Goal (SDG) Target 15.3 index.
More information on the mechanics of the trend calculation and the source datasets are available from the trends.earth website.
The complete area of interest for the study was analysed for the period of 2001-2015 (using the default plugin setings). A full outline of the results is available from the conservation_function/wbr_trends.ods spreadsheet, with the core outcomes outlined in the following table:
Landcover Trend | Area (sq km) | Percent of total land area |
---|---|---|
Total land area: | 53 542.9 | 100.00% |
Land area improved: | 7 921.5 | 14.79% |
Land area stable: | 29 674.4 | 55.42% |
Land area degraded: | 15 939.0 | 29.77% |
Land area with no data: | 7.9 | 0.01% |
A distinct concentration of improved areas is from the Worth Eastern part of the region, whilst the South West areas contain a significant portion of degraded areas identified by the trend analysis. Patterns may suggest strong impact of human activity as drivers of degradation (with degradation surrounding settlements), however the impact across largest areas seems to be driven by environmental changes and perhaps larger scale activities which are less urban in nature, such as mining and agriculture.
Core areas are national protected areas (private game reserves/ national parks) protected by South African National law under the National Environmental Management: Protected Areas Act. Buffer and transition zones do not have the legal protections afforded to core areas and are managed via governance models that are outlined in the institutional aspects. Buffer zones are expected to have limited activity as they are considered by reginoal planning units to minimise the negative impact of human activities.
The Biosphere reserve is incorporated into the UNESCO Man and the Biosphere programme and utilises a cooperative governance model with agencies spanning regional, national and international public and private organisations. Multiple programs ensure the ongoing study and monitoring of numerous indicators.
The primary monitoring mechanisms which are intended to be implmented are outlined in the Waterberg District Bioregional Plan, which utilise the following core indicators:
Summary of important species for conservation outlined in 19.5 (https://github.com/kartoza/WBR-SEMP/issues/60)
Excerpt from Waterberg District Bioregional Plan (Draft 2016):
Key pressures for all species include external factors such as climate change and habitat destruction. Due to the regional climate, water availability and quality is of critical importance and disruptions impact greatly on biodiversity in many ecosensitive areas. The Waterberg District Bioregional Plan outlines important aspects for the protection of water processes and climate change addaptation/ mitigation as follows:
The Waterberg District Bioregional Plan additionally outlines threats to many regions including the IBAs as follows:
Additional details on particular threats in specific areas can be outlined by the descriptions available for the Important Bird Areas (IBAs) within the study area:
The Waterberg System: There are surprisingly few threats to this large IBA. Agricultural activities are declining and large areas of agricultural land have been converted to game farms. Uncontrolled fires are probably the biggest threat to the trigger species and their habitats. The poisoning of vultures remains a threat; a single incident can potentially kill large numbers of these birds. A few applications to mine in the IBA have been submitted. However, the Waterberg is not an area of high mineral content and mining should not be a threat to this IBA. Collisions with radio and television towers as well as power lines have caused substantial vulture mortality. A number of large dams occur in the IBA. Although the management of these dams does not directly affect the Waterberg System IBA, it does have an impact on the Nyl River Floodplain IBA (SA008), as the Waterberg is within the catchment of the Nyl River. These two IBAs are therefore interconnected.
Northern Turf Thornveld: The Yellow-throated Sandgrouse population is relatively healthy. The birds have adapted to foraging in fallow fields over the past few years because much of their natural habitat has been transformed into agricultural land, especially through the establishment of centre-point irrigation schemes. There are a number of mines in the area and it is a concern that the footprint of these mines is increasing.
Pilansberg National Park: The IBA is relatively close to the large urban areas of Gauteng and Rustenburg. There are many roads, fences and infrastructure for electricity supply that pose potentially deadly threats, especially to large and wide-roaming birds such as raptors, cranes and bustards. It may not be sufficient to provide a place of refuge inside the park in order to conserve the local populations of these species. Pilanesberg National Park is bordered by quite large low-income human settlements. The poor socio-economic situation in these areas raises the risk of potential poaching incidents, either for food or to satisfy the increasing demand for wildlife products on the black market.
Nylsvley/ Nyl River Floodplain: The system is reliant on rain falling in the Waterberg (IBA SA007) and inundating the plain. Any impoundment or disturbance to the flow of the handful of rivers that contribute to the floodplain could seriously impact Nylsvley. The river is subjected to small-scale damming, dykes and the extraction of sand, all of which may alter the delicate flooding regime that drives this dynamic system. Another threat to the IBA is the large amount of water extracted from the floodplain by centre-pivot irrigation schemes. Uncontrolled fires are a problem, as demonstrated by the fire that devastated large parts of the floodplain in 2013. On the other hand, regular block burns are not conducted sufficiently on the floodplain, which is leading to the encroachment of bush and the loss of grassland, as well as some grassland patches becoming moribund. Part of the reason for this is that the wetland remains wet in winter, making it difficult to conduct burns in it. In 2013–2014 a number of applications were received to mine on the floodplain. If approved, mines could have a detrimental impact on the trigger species in the IBA.
Measures are outlined in the Waterberg District Bioregional Plan as described in 14.1.4
The Waterberg System: Protected areas within the IBA are Marakele National Park, D’Nyala Nature Reserve, Entabeni Nature Reserve, Doorndraai Nature Reserve and Hans Strijdom Nature Reserve. Welgevonden Private Nature Reserve has also applied to receive formal protection as a nature reserve. These reserves are generally well managed, although some of them lack funding and staff. Unfortunately some of the vulture colonies fall outside Marakele National Park and extending the park’s boundary to rectify this situation should be investigated. BirdLife Northern Gauteng has become the Local Conservation Group for this IBA and will assist with bird-monitoring projects in the IBA, such as SABAP2, CWAC and ringing.
Northern Turf Thornveld: No formal protected areas occur within the IBA. More monitoring is needed to determine the population status of Yellow-throated Sandgrouse and especially the threats that impact on this species. The status of other trigger species within the IBA must also be studied in more detail. Based on this analysis, the status of this IBA should be re-evaluated.
Pilansberg National Park: The establishment of a national park in the Pilanesberg was first suggested in 1969. When Sun City was built in 1978 a park became viable from a tourism perspective and Pilanesberg National Park came into being in 1980. Game was purchased for the ‘Operation Genesis’ re-introduction, for which WWF-SA provided a substantial portion of the funding. Since South Africa became a democracy in 1994, the park has been controlled by North West Parks. This IBA is a formally protected provincial nature reserve.
Nylsvley/ Nyl River Floodplain: The Nylsvley Nature Reserve is located within the IBA and was established in 1967. It is also a Ramsar site. The reserve is well managed and has a management plan, although there is not enough funding or staff to implement it. The management plan also does not address issues relating to bird conservation in the reserve, for example the management of the grasses in the wetland. It is hoped that in 2015 an area east of Mokopane will be declared the Grootvaley Protected Environment. A concerted effort should be made to obtain Protected Environment status for the area outside the nature reserve.
The current Waterberg Disrict Bioregional Plan outlines the following monitoring plan:
The Waterberg District Municipality is the primary implementing agent of the Waterberg District Bioregional Plan, and is therefore responsible for monitoring, reviewing and updating the Bioregional Plan. Reviewing and updating the systematic biodiversity plan on which the Bioregional Plan is based is the responsibility of the Limpopo Department of Economic Development, Environment and Tourism (LEDET). Because there are numerous issues requiring joint planning (e.g. shared ecosystems, rivers and catchments), it would be efficient to establish an inter-agency structure for coordinating the implementation, monitoring, reviewing and updating of the Waterberg District Bioregional Plan. Alternatively, these activities would need to be undertaken independently by the Waterberg District Municipality. The following is recommended:
Species of importance for conservation are outlined in 14.2.1
Other species of importance for activities such as medicine, food production, agrobiodiversity, cultural practices etc are unkown at this time.
Answered 14.2.2 What are the pressures on key species. No further information is currently available for distinct species of special importance.
For species of importance for conservation, the Global Biodiversity Information Facility, or GBIF program, provides an accessible database of spatial species observations and occurences. Additional species information data is periodically obtained from SANBI in the form of database searches and literature sources as detailed in the processes outlined in the Waterberg District Bioregional Plan.
For other species of importance, no further information is available at this time.
The extension of the Waterberg Biosphere Reserve entails the ongoing cooperation between many entities and a commitment from regional planning units to provide consideration for the conservation of important biodiversity regions, with additional oversight from the DRDLR with it's regional authority as outlined in the SPUMA Act.
Additionally, within the Waterberg District Bioregional Plan, a Biodiversity-Compatible Land use framework has been outlined for linking the CBA Map categories to land use planning and decision-making guidelines based on a set of land management objectives for achieving a desired ecological state.
thanks @zacharlie, very nicely structured and presented
14.1. At the level of landscapes and ecosystems (including soils, water and climate):
14.2 At the level of species and ecosystem diversity:
14.3. At the level of genetic diversity:
ref biosphere_reserve_nomination_form_2013_en.pdf