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South African National Survey of Arachnida (SANSA): Review of Current Knowledge, Constraints and Future Needs for Documenting Spider Diversity (Arachnida: Araneae)

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South African National Survey of Arachnida (SANSA): Review of Current Knowledge, Constraints and Future Needs for Documenting Spider Diversity (Arachnida: Araneae) Transactions of the Royal Society of South Africa ISSN: 0035-919X (Print) 2154-0098 (Online) Journal homepage: http://www.tandfonline.com/loi/ttrs20 South African National Survey of Arachnida (SANSA): review of current knowledge, constraints and future needs for documenting spider diversity (Arachnida: Araneae) A.S. Dippenaar-Schoeman, C.R. Haddad, S.H. Foord, R. Lyle, L.N. Lotz & P. Marais To cite this article: A.S. Dippenaar-Schoeman, C.R. Haddad, S.H. Foord, R. Lyle, L.N. Lotz & P. Marais (2015): South African National Survey of Arachnida (SANSA): review of current knowledge, constraints and future needs for documenting spider diversity (Arachnida: Araneae), Transactions of the Royal Society of South Africa, DOI: 10.1080/0035919X.2015.1088486 To link to this article: http://dx.doi.org/10.1080/0035919X.2015.1088486 Published online: 07 Oct 2015. Submit your article to this journal View related articles View Crossmark data Full Terms & Conditions of access and use can be found at http://www.tandfonline.com/action/journalInformation?journalCode=ttrs20 Download by: [University of Venda] Date: 12 October 2015, At: 02:02 Transactions of the Royal Society of South Africa, 2015 http://dx.doi.org/10.1080/0035919X.2015.1088486 South African National Survey of Arachnida (SANSA): review of current knowledge, constraints and future needs for documenting spider diversity (Arachnida: Araneae) A.S. Dippenaar-Schoeman1,2*, C.R. Haddad3, S.H. Foord4, R. Lyle1, L.N. Lotz5 & P. Marais1 1ARC-Plant Protection Research Institute, Private Bag X134, Queenswood, Pretoria, 0121, South Africa; 2Department of Zoology and Entomology, University of Pretoria, Pretoria, 0001, South Africa; 3Department of Zoology and Entomology, University of the Free State, P.O. Box 339, Bloemfontein, 9300, South Africa; 4Centre for Invasion Biology, Department of Zoology, University of Venda, Private Bag X5050, Thohoyandou, 0950, South Africa; 5National Museum, Bloemfontein, P.O. Box 266, Bloemfontein, 9300, South Africa *Author for correspondence E-mail: [email protected] Biodiversity is one of the most important concepts in contemporary biology, with a broad range of applications. In November 1995, South Africa ratified the Convention on Biological Diversity (CBD). Signatories are obligated to develop a strategic plan for the conservation and sustainable use of biodiversity. To meet the requirements of the CBD, the South African National Survey of Arachnida (SANSA) was initiated in 1997. This national project has several aims: to document and describe the arachnid fauna of South Africa; to consolidate all the available data on South African arachnids into one relational database and to make this biodiversity information available to science; and to address issues concerning their conservation and sustainable use. Extensive sampling took place and the SANSA database contains a wealth of biodiversity data that are used to provide answers to ecological questions. Presently 71 spider families, 471 genera and 2170 species are known from South Africa, representing approximately 4.8% of the world fauna. This paper presents the current state of spider biodiversity information and how it is managed. It demonstrates the importance of running a national inventory; emphasises the significance of using a good database application; and the importance of capacity development to improve the quality and integration of biodiversity information. Further, it shows the role SANSA has played in unifying and strengthening arachnid research, with the major thrust to discover the spider diversity in South Africa. We discuss the present status of knowledge, constraints to improving this, and the future directions for research. SANSA has provided the foundations for a more integrative approach to spider diversity research. Future research should build on this legacy by linking taxonomic diversity with that of functional diversity, predicting the response of this diversity to global change drivers. Functional approaches will link these studies to ecosystem processes. Global collaborative studies at several sites following standardised sampling protocols and focused research questions would add value to the SANSA collection and the importance of spiders for the health of ecosystems. Downloaded by [University of Venda] at 02:02 12 October 2015 Keywords: agro-ecosystems; biodiversity informatics; biomes; national lists; protected areas; provinces; urban areas; virtual museum INTRODUCTION efficiently retrievable form that best meets the needs of At a global scale, the signatories to the Convention on Bio- science, conservation and society. logical Diversity (CBD) had failed to significantly reduce biodi- Natural history collections with their primary data provide versity loss by 2010 (Convention on Biological Diversity, 2006; extremely valuable biodiversity information to science and Butchart et al., 2010). The 20 Aichi Biodiversity Targets rep- society (Smith et al., 2003; Robertson et al., 2010; Scoble, resent a new set of goals for the year 2020 (http://www.cbd. 2010), and the vast majority of information about South int/sp/) (Adenle, 2012). The majority of the goals refer to diver- African biodiversity originates from the country’s natural sity that has not yet been inventoried or described. South history collections (Drinkrow et al., 1994; Hamer, 2012). Speci- Africa ratified the CBD and in meeting these goals the mens in natural history collections play a vital role in the CBD country will have to: (1) discover, describe and inventory goals, i.e. to discover and make an inventory of a group, and to species; (2) analyse and synthesise information into predictive database the primary data to be able to manage the infor- classification systems; and (3) organise this information into an mation and make it available in an efficiently retrievable © 2015 Royal Society of South Africa 2 Transactions of the Royal Society of South Africa Vol. 0(0): 1–31, 2015 form. Tohelp document and have access to these primary data, in South Africa, and a summary of the patterns observed, the Global Biodiversity Information Facility (GBIF) was estab- mechanisms identified, constraints and potential directions lished by governments in 2001 to encourage free and open for future research is provided. access to biodiversity data via the Internet; the South African node of GBIF is referred to as SABIF (South African Biodiver- SOUTH AFRICAN NATIONAL SURVEY OF ARACHNIDA sity Information Facility). Through a global network of 57 (SANSA) countries and 47 organisations, GBIF promotes and facilitates The South African National Survey of Arachnida (SANSA) the mobilisation, access, discovery and use of information was launched in 1997 in accordance with the country’s obli- about the occurrence of organisms over time and across the gations to the CBD (Dippenaar-Schoeman & Haddad, 2006; planet. In January 2011, the digital records of approximately Foord et al., 2011a). SANSA is an umbrella project implemented 26% of vouchered specimens in South African zoological col- at a national level in collaboration with researchers and insti- lections could be queried through the SABIF Data Portal or tutions countrywide, dedicated to document and unify infor- the GBIF Data Portal (Coetzer et al., 2012). The scientific com- mation on arachnids in South Africa. SANSA’s aims are to: munity needs the biodiversity information held by South (1) discover, describe and make an inventory of the arachnid Africa’s natural history collections for important national and fauna of South Africa; (2) organise all available information provincial biodiversity projects, such as the National Spatial in a relational database and to make the data available to Biodiversity Assessment (Reyers & McGeoch, 2007) or provin- science and society; (3) use this information to address sustain- cial State of Biodiversity reports (Turner, 2012). able use of arachnids and to undertake conservation planning; Invertebrates constitute more than 80% of all animal diver- (4) develop products that meet the needs of the community; sity, yet they are under-represented in studies of southern (5) create awareness through education, training and online African diversity (McGeoch et al., 2011). Determining invert- bio-informatics; and (6) build capacity and infrastructure to ebrate diversity is particularly challenging because: (1) a unify and strengthen biodiversity research on spiders and large proportion of species are small and can only be identified other South African arachnids. under a microscope; (2) there is a high proportion of unde- SANSA is managed by the Arachnida Unit at the National scribed species; (3) the determination of species names is Collection of Arachnida (NCA) at the Plant Protection time consuming and, in taxa whose taxonomy is poorly Research Institute (PPRI), Agricultural Research Council known, it may not be possible; (4) species determinations are (ARC) in Pretoria (Figure 1), with support from the University costly as they can only be done by specialists; (5) many of the Free State. The activities of SANSA have run over three species distributions are still poorly known; (6) professional periods: taxonomists are few; (7) sampling methods and protocols are SANSA I (1997–2005): the national project was established not standardised; and (8) knowledge of responses to environ- and several participants from the universities of the Free mental change is generalised and limited. State, Limpopo, Pretoria and Venda were included, as well To document and conserve the
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