versión On-line ISSN 2071-0771
versión impresa ISSN 0075-6458
Koedoe vol.53 no.2 Pretoria ene. 2011
Melodie A. McGeochI; Mbulelo DopoloI; Peter NovellieII; Howard HendriksII; Stefanie FreitagIII; Sam FerreiraIII; Rina GrantIII; Judith KrugerIII; Hugo BezuidenhoutIV; Rodney M. RandallV; Wessel VermeulenVI; Tineke KraaijV; Ian A. RussellV; Michael H. KnightVII,VIII; Stephen HolnessVII,VIII; Ané OosthuizenVII,VIII
ICape Research Centre, Conservation Services, Steenberg, South African National Parks, South Africa
IIConservation Services, South African National Parks, South Africa
IIISavanna Research Unit, Conservation Services, Skukuza, South African National Parks, South Africa
IVSavanna Research Unit, Conservation Services, Kimberley, South African National Parks, South Africa
VGarden Route Unit, Conservation Services, Sedgefield, South African National Parks, South Africa
VIGarden Route Unit, Conservation Services, Knysna, South African National Parks, South Africa
VIIPark Planning & Development, Conservation Services, Port Elizabeth, South African National Parks, South Africa
VIIIDepartment of Zoology, Nelson Mandela Metropolitan University, South Africa
Protected areas are under increasing threat from a range of external and internal pressures on biodiversity. With a primary mandate being the conservation of biodiversity, monitoring is an essential component of measuring the performance of protected areas. Here we present a framework for guiding the structure and development of a Biodiversity Monitoring System (BMS) for South African National Parks (SANParks). Monitoring activities in the organisation are currently unevenly distributed across parks, taxa and key concerns: they do not address the full array of biodiversity objectives, and have largely evolved in the absence of a coherent, overarching framework. The requirement for biodiversity monitoring in national parks is clearly specified in national legislation and international policy, as well as by SANParks' own adaptive management philosophy. Several approaches available for categorising the multitude of monitoring requirements were considered in the development of the BMS, and 10 Biodiversity Monitoring Programmes (BMPs) were selected that provide broad coverage of higher-level biodiversity objectives of parks. A set of principles was adopted to guide the development of BMPs (currently underway), and data management, resource and capacity needs will be considered during their development. It is envisaged that the BMS will provide strategic direction for future investment in this core component of biodiversity conservation and management in SANParks.
CONSERVATION IMPLICATIONS: Monitoring biodiversity in protected areas is essential to assessing their performance. Here we provide a coordinated framework for biodiversity monitoring in South African National Parks. The proposed biodiversity monitoring system addresses the broad range of park management plan derived biodiversity objectives.
Protected areas in many parts of the world are under increasing threat from climate change, unsustainable resource use, system impoverishment (e.g. air pollution, encroachment), habitat conversion (e.g. roads, buildings) and isolation as a result of increasingly intense land use along their borders (Carey, Dudley & Stolton 2000; Hansen & DeFries 2007). For example, mammal populations in African protected areas (specifically eastern and western Africa) have declined significantly since the 1970s (Craigie et al. 2010). Although mammal population abundances have generally been stable in southern Africa over the same time period (Craigie et al. 2010), pressures on ecosystem services in the region continue to grow, including the use of such services for fresh water, food and fuel (Van Jaarsveld et al. 2005). While many of the impacts of the pressures on ecosystem services are experienced outside of protected areas, protected areas themselves are not immune to the direct and indirect consequences of environmental change. Monitoring the status of, and threats to, biodiversity in protected areas is thus becoming increasingly important.
The measurement and monitoring of biodiversity in protected areas is generally aimed at, (1) assessing and improving the efficiency and effectiveness of conservation action, (2) informing management action and policy at both local and national levels, (3) providing evidence of conservation success and (4) strengthening the case for conservation among policy makers, funding agencies and land owners (Gaston et al. 2006). In addition, biodiversity monitoring systems in protected areas are intended to provide early recognition of unforeseen changes that impact on biodiversity, and to contribute to understanding potential impacts of current and new activities on biodiversity. These data will also feed into national and international assessments of the state of biodiversity (Buckley et al. 2008). Monitoring systems are thus necessary to both identify where policy or management intervention may be required, and to inform and evaluate the effectiveness of any interventions.
Monitoring is 'the collection and analysis of repeated observations or measurements to evaluate changes in condition and progress toward meeting a conservation or management objective' (Elzinga et al. 2001). Monitoring systems for assessing the effectiveness of the management of protected areas broadly involves two approaches, (1) quantitative, measurement-based data collection obtained from in-field measurements (or, for example, from remote sensing) of some aspect of biodiversity or ecosystem process (a quantitative approach) and (2) qualitative, perception-based scoring of performance, conducted by managers and other stakeholders (i.e., a scoring approach) (Hockings 2003). Both scoring and quantitative approaches are valuable in the protected area context (Buckley et al. 2008). For example, the World Commission on Protected Areas Management Effectiveness Tracking Tool is a scoring system that is widely applied to protected areas across the world (Stolton et al. 2007). South African National Parks (SANParks) has also developed and implemented a scoring process, that is, State of Biodiversity (SoB) management reporting, that is used to assess how well management targets within SANParks are being met. It is used as a broad-based, qualitative assessment of the implementation of park objectives (Goodman 2003; Hockings, Leverington & James 2006; Knight 2007). However, to date SANParks has not yet implemented a quantitative, biodiversity monitoring system that integrates biodiversity management objectives and activities within and across national parks.
Here we outline a framework for guiding the development and implementation of a SANParks Biodiversity Monitoring System (BMS). In this context, the term 'biodiversity' includes all levels of the biological hierarchy, from genes to ecosystems, and includes structure, function and composition (Gaston 1996; Noss 1990). It thus encompasses quantitative monitoring of not only the elements, but also the processes and mechanisms that generate, maintain and threaten biodiversity. As such, this framework provides, (1) the rationale for developing a SANParks BMS, (2) the organisational, national and international contexts within which the BMS is positioned, (3) an overview of the current status of biodiversity monitoring in SANParks, (4) an overarching structure and set of objectives for the BMS and (5) guiding principles and requirements for the development of monitoring programmes. Stages in the development of a BMS and the monitoring programmes that constitute it include scoping, design, testing and implementation phases, and the feedbacks between them (Mace et al. 2005; Reyers & McGeoch 2007; The Royal Society 2003). The strategic framework presented here thus represents part of the scoping and design phase of a monitoring system for SANParks.
SANParks' monitoring system must be cognisant of national and international biodiversity monitoring systems and programmes, while simultaneously focusing on the organisation's own mandate and management objectives (Reyers & McGeoch 2007). Explicitly demonstrating how the SANParks BMS fits within the broader context, as far as is relevant, will ensure that monitoring retains a distinct profile within the organisation, and that it remains relevant and in line with global biodiversity monitoring standards.
SANParks' obligation to monitor is specified in the National Environmental Management: Protected Areas Act (Republic of South Africa 2003, Act 57 of 2003), in part, as: 'The management authority of a protected area must monitor the area against the indicators set in terms of established indicators for monitoring performance'. The performance indicators relate to, (1) the management of protected areas and (2) the conservation of biodiversity in those areas. The National Environmental Management: Biodiversity Act (Republic of South Africa, 2004, Act 10 of 2004) specifies that the requirements for biodiversity management are aimed at ensuring the long-term survival in nature of species or ecosystems and includes provision for the responsible person, organisation or organ of state to monitor and report on progress with such objectives.
South Africa has some history of environmental and biodiversity assessment, for example, the National State of the Environment Report (DEAT 2006), the National Environmental Indicators Programme (DEAT 2002), the National State of Forests Report (DWAF 2007) and the South African Environmental Observation Network (Van Jaarsveld et al. 2007). Further, in keeping with our commitments under the Convention on Biological Diversity (CBD), South Africa has developed a National Biodiversity Strategy and Action Plan and a National Biodiversity Framework (DEAT 2005). The National Biodiversity Monitoring Framework, together with the National Spatial Biodiversity Assessment (Driver et al. 2005) and the National Protected Areas Expansion Strategy (DEAT 2008), form the basis for the National Biodiversity Framework. SANParks' BMS aligns closely with these national initiatives, and will therefore be in a position to inform national reporting on biodiversity (Grobler 2009).
Relevant international monitoring initiatives include, for example, those reporting on various targets set by the CBD (e.g., the 2010 Biodiversity Target, to achieve a significant reduction in the rate of biodiversity loss [Butchart et al. 2010; Walpole et al. 2009]). Relating specifically to protected areas, the CBD Programme of Work on Protected Areas outlines clear goals and targets for protected areas. For example, Goal 4.3 of this programme is 'to assess and monitor protected area status and trends' (UNEP-WCMC 2008). The CBD's Programme of Work on Marine and Coastal Biological Diversity also provides an overview of status and trends, and highlights the 2010 sub-targets for marine and coastal biodiversity.
Other national protected area agencies have also adopted quantitative biodiversity monitoring systems, such as Parks Canada's ecological integrity monitoring framework (Timko & Innes 2009). Australian protected areas have clear monitoring strategies linked to management plans, although monitoring remains largely decentralised to individual parks (Buckley et al. 2008). By contrast, in the United Kingdom, the absence of systematically collected data in protected areas is currently considered to be a substantial hurdle to assessing their effectiveness (Gaston et al. 2006).
There are therefore clear international and national imperatives for monitoring the state of, and trends in, biodiversity, together with the success of management actions aimed at its conservation. As a significant role player in South Africa's biodiversity and conservation sector, SANParks' involvement in assessing the conservation and management of biodiversity in the context of the performance of protected areas is fundamental to the purpose of the organisation (SANParks 2006a). SANParks' strategic business is underpinned by the principles of adaptive management, that is, 'a management philosophy that places emphasis on strong goal-setting, integration of design, management and systematic monitoring in order to adapt and learn' (Biggs & Rogers 2003). As part of the adaptive management system, each park has a management plan (submitted to the Minister of Water and Environmental Affairs) that outlines a series of higher-level biodiversity objectives. These objectives provide broad foci for the rationale and design of a BMS for SANParks (Table 1).
Monitoring is one of the pillars underpinning SANParks' Strategic Adaptive Management (SAM) approach, where strongly goal-orientated park objective hierarchies are used to link science, monitoring and management (Biggs & Rogers 2003). Monitoring, or 'regular state-of-the-system measurement', is pivotal to the success of SAM (Biggs & Rogers 2003). SANParks has a long history of biodiversity monitoring, with several existing biodiversity monitoring projects and activities (Bryden & De Vos 1994; Durrheim 2009). Over 170 current and historical SANParks projects qualify as either monitoring projects or research projects that provide relevant baseline information for monitoring. Together with SANParks scientists, external agencies and researchers have made a significant contribution to this body of work, specifically to understanding ecosystem processes, compiling species inventories and conducting species-specific studies (Bryden & De Vos 1994). These monitoring-relevant projects encompass a spectrum of individual researcher and organisational involvement and data ownership arrangements. In a number of instances, therefore, the data lie with external organisations and are not necessarily effectively integrated into SANParks' knowledge systems and management processes. In addition, little biodiversity monitoring and reporting (quantitative, rather than score-based) currently occurs at either biodiversity estate (i.e., the full suite of biodiversity and ecosystems under SANParks management), regional or organisational levels (Figure 1). Investment in monitoring has also been unevenly distributed across environments and parks (as has research more generally, Bryden & De Vos 1994). In most instances monitoring projects are designed for specific parks and in a few cases, for park clusters. This, in part, reflects the history of the organisation and the adoption and proclamation of new terrestrial parks and also marine protected areas.
Existing monitoring activities have thus developed independently of an integrated organisational monitoring framework, and many of them are not necessarily well linked to park management requirements. Furthermore, few existing monitoring activities are directly linked to management objectives via, for example, specific Thresholds of Potential Concern (TPCs, see Figure 1) (for TPC examples, see Foxcroft 2009 [alien species]; Rogers and O'Keefe 2003 [rivers]; Van Wilgen, Biggs & Potgieter 1998 [fire]). Time series information is also limited to selected taxa (mostly mammals) and specific parks, for example, the Kruger National Park (Du Toit 2003). The alignment between research projects and SANParks' biodiversity objectives (Table 1) is not always clear, and existing projects do not currently address the full range of biodiversity objectives in park management plans (see also Buckley et al. 2008; Kapos et al. 2008). For example, the rehabilitation of degraded areas is an important management objective in several parks, particularly more recently proclaimed parks (such as fynbos in plantation exit areas in the Garden Route National Park), but it is currently largely not monitored. By contrast, sustainable indigenous forest monitoring in the Garden Route National Park is well developed, and encompasses monitoring natural ecosystem changes and the effects of management activities (Durrheim 2009).
The design of a BMS for SANParks must therefore be led by strategic organisational objectives, rather than by existing monitoring activities. Several gaps exist, and stronger alignment with park and organisational objectives is required (Buckley et al. 2008). Motivation for biodiversity monitoring is significantly strengthened when diverse monitoring objectives are placed within a coherent, overarching framework, such as that provided here. In addition to the absence of a strategic monitoring framework for the organisation, the most important reason to date for not implementing the required monitoring programmes has been the severe shortage of resources, both in terms of numbers of people to carry out the fieldwork, as well as a lack of the skills required to carry out extensive biodiversity surveys and associated data analyses (Field et al. 2007). The situation outlined here, while recognised as undesirable, is not uncommon to national protected area systems (e.g., Australia [Buckley et al. 2008] and the United Kingdom [Kapos et al. 2008]). Nonetheless, it provides the principle motivation for the development and implementation of a BMS for SANParks that addresses and prioritises the full range of key biodiversity concerns, conservation, and reporting commitments and obligations across parks, taxa and environments.
Sanparks' biodiversity monitoring system
Monitoring systems must be objective driven, and the rationale for a particular monitoring programme can be expressed as a series of multiple, hierarchical objectives (Field et al. 2007). There are many ways of categorising monitoring objectives, for example, by taxon or by threat, by management objective, or by the scale at which the monitoring programme will operate. While there is no universally best way of doing so, grouping monitoring objectives is a critical first step in rationalising the inevitable multitude of monitoring requirements (Regan et al. 2008). Different approaches to categorising monitoring objectives are usually complementary, and two main approaches (described below) were used to guide the design and development of the SANParks BMS and to identify Biodiversity Monitoring Programmes (BMPs) (Figure 2).
Firstly, the BMS was primarily designed to encompass the monitoring of key organisational biodiversity management objectives at various scales and across national parks. Table 1 provides a synthesis of the range of higher-level management objectives extracted from SANParks' Park Management Plans (SANParks 2008). All protected areas managed by SANParks explicitly have biodiversity as a management objective, and most include biodiversity representation, process and sustainability in their objective hierarchies. The similarity of broad objectives across parks means that monitoring programmes may be identified and designed that are applicable to more than a single park. This approach has the following advantages, (1) it provides comparative information on the status of, and trends in, biodiversity across parks, (2) it provides information on the biodiversity estate and facilitates the interpretation of monitoring outcomes within a biome and regional context (Figure 1) and (3) it is more efficient than repeated, parallel investment in the development of monitoring programmes for individual parks.
Secondly, the BMS for SANParks must necessarily encompass multiple objectives at different levels and different scales. For example, the following three objectives are hierarchically related, (1) to monitor the effectiveness of SANParks in conserving rare and threatened species (organisational level objective), (2) to monitor changes in the conservation status of species of special concern in the fynbos biome (biodiversity estate/regional level objective) and (3) to monitor changes in the conservation status of bontebok in Bontebok National Park (park level objective) (as shown in Figure 1). These levels (organisational, estate, regional and park) do not necessarily form discrete categories, but do illustrate the hierarchical nature of monitoring needs and objectives (Figure 1).
Biodiversity monitoring programmes
The SANParks BMS comprises a series of BMPs (Figure 2). A monitoring programme encompasses one or more objectives with a common underlying rationale and usually more than a single measure or indicator (Heink & Kowarik 2010). Together, the set of programmes (i.e. the monitoring system) addresses the broad range of SANParks' biodiversity monitoring priorities (Figure 3).
Ten BMPs have been identified for development and implementation. The identification and selection of these programmes took place at a workshop attended by 20 SANParks scientists in October 2009, following the development and adoption of the Biodiversity Monitoring Framework (2008-2009, presented here) (Figure 2 and Table 2). After discussion of the need to group or categorise monitoring requirements, and the various models and approaches available for doing so, a list of monitoring programmes was compiled by soliciting proposals from all scientists present. This list was then examined and related proposals merged, resulting in a final list of 10 programmes (Table 2). The list was then put to a vote to prioritise the programmes and potentially reduce their number. However, although there were wide-ranging views on the relative priorities of the programmes, there was consensus that, together, the 10 programmes encompass priority monitoring needs within SANParks. The number of programmes to be developed and adopted thus remained 10.
The 10 programmes align strongly with park management objectives and are also strongly interrelated (Figure 3). For example, the Freshwater and Estuarine Systems Programme may rely on the Alien and Invasive Species Programme for alien monitoring in freshwater systems. The Habitat Degradation and Rehabilitation Programme and the Habitat Representation and Persistence Programme may work together, for example, on the impacts of adjacent land use on the park. The Climate and Climate Change Programme, in addition to its value in its own right, has the potential (via collation and reporting of weather and climate data) to support most other programmes. This interrelatedness between programmes, and the explicit integration of their design and outputs, is essential to maximise the knowledge gained and to achieve broader and more robust insights into ecosystem change (Biggs 2003; Buckland et al. 2005; Henry et al. 2008; Nielsen et al. 2009). Indeed, information generated by the BMS is designed to be integrated within and across both parks and programmes. Such integration will not only add value to the BMS, but will also streamline individual programmes and avoid duplication of effort. Although one of the 10 programmes selected is environment-specific (the Freshwater and Estuarine System Programme), terrestrial, freshwater and marine environments are integral to all programmes. Similarly, most programmes are likely to encompass the monitoring of a cross-section of taxa.
Each BMP will be designed to adopt, as far as possible, relevant, common approaches, methods and reporting systems across parks. Information generated by BMPs may be integrated (aggregated and disaggregated) and synthesised for reporting on the biodiversity status of individual parks, park clusters or all parks (Table 3). The system is also flexible, such that new programmes may be identified and introduced over time. The BMPs will be designed following a set of guiding principles (Table 3). These principles were adopted largely to ensure the relevance, efficiency, effectiveness and quality of the BMS. The programme design phase will be informed by subject and taxonomic expertise, as well as survey design, sampling design and statistical principles (e.g., Buckland et al. 2005; Elzinga et al. 2001; Field et al. 2007; Lovett et al. 2007) (Table 3). Programmes are intended for medium- to long-term adoption (over several 5-yearly park management plan revision cycles), and must therefore balance priority monitoring needs with logistic feasibility and sustainability. Existing monitoring projects and activities will, wherever feasible and appropriate, be integrated into one or more of the 10 programmes. In addition, where monitoring approaches have been developed and tested, or are widely used elsewhere, these may be adopted. For example, well developed sets of indicators exist for marine protected areas and marine ecosystems (Moloney & Shillington 2007; Pomeroy et al. 2005), as well as in the area of sustainable forest management (Durrheim 2009; DWAF 2005). Established systems such as these may, as appropriate, be adopted or modified for use in SANParks' BMS.
Each BMP will be formally proposed and independently reviewed prior to adoption. Programme proposals will include a description of context and rationale, objectives and methods, research and inventory needs, as well as a critical assessment of the strengths and weaknesses of the programme, and the indicators and measures that underpin it. Programme proposals will also include assessments of the capacity and funding requirements necessary to implement them, as well as assessments of relationships, overlaps and linkages between related programmes, and data management protocols. These BMP proposals serve several purposes, (1) they provide a means to solicit input, (2) they provide (in a single document) information that can be accessed readily and referenced, (3) they ensure continuity of implementation with staff changes and (4) they may be used to elicit support for the BMS (Elzinga et al. 2001). Finally, effective data management and reporting is also key to the success of monitoring systems such as this, and data management protocols will be fully integrated into the development of the BMS.
Resource needs, capacity building and collaboration
The greatest challenge facing conservation-relevant monitoring is balancing the development of appropriate strategies with personnel, time and budget constraints (Buckley et al. 2008; Walker 2009). In fact, the monitoring that is carried out in protected areas has been shown to be more strongly correlated with resource availability than any other factor (Bruner et al. 2001; WWF 2004). As outlined earlier, the assessment of resource and capacity needs will form part of the proposal development process for each BMP. Although existing resources, personnel and infrastructure will be used as far as possible, it is likely that a significant injection of both human and financial resources will be required for the SANParks BMS to be fully and effectively implemented. For example, the capacity for data management that is required by the BMS is far from sufficient to handle data from all 19 national parks. As is commonly the case elsewhere (Kapos et al. 2008), the implementation of biodiversity monitoring in SANParks is constrained by a lack of personnel tasked with and qualified to collect data, to manage and archive data, as well as to analyse and interpret data to inform management.
The inadequate state of resources for biodiversity monitoring in SANParks reflects a countrywide shortage of resources, as reported in South Africa's Fourth National Report to the CBD (DEAT 2009). This report notes a significant shortfall in funds required for the implementation of South Africa's National Biodiversity Framework, which includes the priority actions of developing national biodiversity research and monitoring strategies, as well as strategies to address the widespread shortage of human capital in the biodiversity sector. Nonetheless, as James, Gaston & Balmford (2001) demonstrated, the cost of investing in conservation is small in comparison with the lost opportunities and environmental degradation in the absence of such investment (e.g., declining water quality, alien species invasion, human health costs of poor air quality). Biodiversity monitoring is essential to ensuring the effectiveness of this investment.
A further element critical to the success of the SANParks BMS is the continuation, strengthening and expansion of collaborative relationships with other agencies involved in biodiversity monitoring. This includes, for example, the South African National Biodiversity Institute, national departments, provincial conservation agencies, researchers and research organisations. The use of natural history societies, volunteer groups and citizen scientists in monitoring programmes has been shown to be highly effective, both internationally and in South Africa, with volunteers making significant contributions in this area (Bell et al. 2008; Braschler et al. 2010; Podjed & Mursic 2008). The Honorary Rangers of SANParks is one such example, as are the citizen scientists that contribute to bird monitoring in South Africa and globally (see, e.g. www.adu.org.za).
Evaluation, feedback and reporting cycles
The approach that will be used to track and evaluate progress in the development and adoption of SANParks' BMS will be based on the evaluation and monitoring principles set for the organisation (SANParks 2006b). This approach adopts a logical series of steps to measure progress with the implementation of the BMS. It ensures ongoing assessment of the effectiveness of the framework and its implementation, and ultimately the organisation's mandate to enable informed and accountable decision-making through monitoring and analysis (Kapos et al. 2008). As part of this process, the BMS should be regularly reviewed and evaluated, as is the case with park management plans.
The Biodiversity Monitoring Framework presented here maps the way forward for biodiversity monitoring in SANParks. As such, it is intended to play a significant role in guiding investment in research, monitoring, and resulting policy and management action in national parks for the foreseeable future.
We thank the many members of the SANParks Conservation Services Division that contributed at various stages during the development of this framework, as well as Steven Chown, Dian Spear and Tony Rebelo for discussions and comments.
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Postal address: PO Box 216
Steenberg 7947, South Africa
Received: 29 Mar. 2010
Accepted: 04 Aug. 2010
Published: 13 May 2011
© 2011. The Authors. Licensee: OpenJournals Publishing. This work is licensed under the Creative Commons