of arachnida (sansa) past and present library/the south...the arachnid fauna of south africa”...
TRANSCRIPT
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The South African National Survey of Arachnida (SANSA) – past and
present Ansie Dippenaar-Schoeman & Robin Lyle
– ARC-Plant Protection Research Institute Charles Haddad
– University of the Free State
Stefan Food – University of Venda
Leon Lotz - National Museum
Allen Jones
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At the 1992 Earth Summit in Rio de Janeiro, world leaders agreed on a comprehensive strategy for sustainable development One of the key agreements adopted at Rio was the Convention on Biological Diversity (CBD) The Convention establishes three main goals: • conservation of biological diversity • sustainable use of its components • and the fair and equitable sharing of the benefits from the use of genetic resources Signatories of the CBD are obligated to: • develop a strategic plan for the conservation • sustainable use of biodiversity
Vida van der Walt
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SOUTH AFRICAN NATIONAL SURVEY OF ARACHNIDA “to document the Arachnida fauna of South Africa”
Phase 1: 1997-2005
Phase 2: 2006-2010 collaboration ARC-SANBI
Phase 3: 2011-present: continuation of project;
surveys; review articles
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to discover, describe and to make an inventory of the arachnid fauna of South Africa
to organise this information in a database
to analyse and synthesise the information and to make the data available to science and society
to use information for sustainable use and conservation planning
to develop products that meet the need of the community
to make people aware through education and training
to build capacity and infrastructure
Martie Rheeder
AIMS OF SANSA
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Despite their high diversity and importance for humankind, invertebrates are often neglected in biodiversity conservation policies. They identify SEVEN impediments to their effective protection:
(1) Invertebrates and their ecological services are mostly unknown to the general public (public dilemma);
(2) policymakers and stakeholders are mostly unaware of invertebrate conservation problems (political dilemma);
(3) basic science on invertebrates is scarce and underfunded (scientific dilemma);
(4) most species are undescribed (Linnean shortfall);
(5) the distribution of described species is mostly unknown (Wallacean shortfall);
(6) the abundance of species and their changes in space and time are unknown ( Prestonian shortfall);
(7) species ways of life and sensitivities to habitat change are largely unknown (Hutchinsonian shortfall).
Cardoso,P., Erwin, T.L., Borges, P.A.V. & Tim R. 2011. The seven impediments in invertebrate conservation and how to overcome them. New Biological Conservation 144: 2647–2655
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I. Public dilemma – people throughout the world do not recognize
invertebrates or their roles in the ecosystem. In consequence, the public has the tendency to disregard invertebrate species as in need of protection Better information Better marketing
HOW SANSA ADDRESS THE PUBLIC DILEMMA
• Popular articles • Scientific papers • Website • Talks • Radio talks • TV • Launches • Newsletter
Better information
• Newsletter • Website • Factsheets • Handbooks • Posters • Spider Educare programme • Workshops • Virtual Museum
Better marketing
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marketing
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“spiders the farmers best friend” marketing
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“to develop products that meet the need of the community”
information
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“to develop products that meet the need of the community”
Designed by E. van Niekerk
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“public participation”
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VIRTUAL MUSEUM
Virtual museum www.arc.agric.za see SANSA
“to make people aware through education and training”
P. Webb
P. Webb W. Avni
V. vd Walt V. vd Walt
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II. Political dilemma – many policymakers and stakeholders see invertebrates as species that, if needed, are indirectly protected by ‘‘umbrella’’ vertebrate species. In consequence, protection measures and funding are limited
Red-listing
• Legal priority listing
• Inclusion in environmental impact assessment studies (EIA)
HOW SANSA ADDRESS THE POLITICAL DILEMMA
Red-listing Legal priority listing EIA
• Spider red listing started 2013
• Follow IUCN protocol
• Endemic species – SA National Spatial Biodiversity Assessment for 2010
• Invasive and threatened species • SABIF database • First National species list (SANBI) • Encyclopedia of Life (SANBI) • Provincial biodiversity assessments
• About 5000 id’s per year
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VALUE LEVEL OF ENDEMICITY
6 = endemic-known only from type locality / one locality only 5 = known from one province only, wider than type locality 4 = known from two adjoining provinces only 3 = South Africa >two provinces 2 = Southern Africa (south of Zambezi and Kunene Rivers) 1 = Afrotropical Region 0 = Cosmopolitan
VALUE LOCAL ABUNDANCE
3 = very rare known from 1-3 localities 2 = rare known from 4-10 localities 1 = abundant known from >10 localities
Conservation assessments
Ammoxenus psammodromus Simon, 1910 Distribution in South Africa: Eastern Cape: Vryburg (-26.95, 24.73). Free State: Boshof (Farm Elliesdal 1062) (-28.8, 25.52); Farm Table (-28.72, 24.92); Florisbad Research Station (-28.77, 26.07) Habitat (biomes): GB, NKB, SB. Records from protected areas: 1. Records from agro-ecosystems: 1. Known distribution: Botswana*, Namibia, South Africa. Rarity index: endemicity: 2; abundance: 2 [4]. Taxonomic status: 3.
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III. Scientific dilemma – the discovery and description of new species and the collecting of spatial and temporal data on known species are increasingly regarded as dated science. In consequence, taxonomy and classical ecology are underfunded
• Parataxonomy
• Citizen science programs
• Biodiversity informatics
HOW SANSA ADDRESS THE SCIENTIFIC DILEMMA
• Parataxonomy – availibilty of info: online • Citizen science programs -several • Biodiversity informatics
• Virtual museum • AFRAD • Illustrated atlas
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Citizen science programs • Surveys botanical gardens
• Kliprivierberg NR
• Witbank NR
• Irene
• Kalkfonteindam NR
• Addo NP
• Jeffreys
• Farm Alicedale Tshipise
• Mpetsane Conservation Estate
• Waterberg
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IV. Linnean shortfall – the knowledge of the identity of species on Earth is remarkably poor, with many species yet to be described and catalogued. The term is a reference to the scientist Carl Linnaeus (1707–1778), who laid the foundations of modern taxonomy in the 18th century
• Biodiversity surrogacy
• Increased support for taxonomy
• Advances in taxonomic publication processes
Elzette
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“history of new species description”
1700 1800 1900-20 1921-40 1941-60 1961-80 1981-2000 2001-13
2058
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“trend last 13 years”
217 spp. = 17 per year?
2007-2009 2004-2006 2001-2003 2001-2003 2010-2013
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“to build capacity and infrastructure"
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V. Wallacean shortfall – refers to our inadequate knowledge of the distributions of species at all possible scales. This term is a reference to Alfred R. Wallace (1823–1913), who studied the patterns and processes in the geographical distribution of species
• Funding of regional or worldwide inventories
• Compilation of primary biodiversity data in public repositories
• Species distribution modeling
HOW SANSA ADDRESS THE SCIENTIFIC DILEMMA
• National Collection od Arachnida • Well developed database • First spider atlas with maps
Focus areas • Protected areas • Afroecosystems • Biomes • Provincial
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GAP ANALYSIS
SANSA
Effort in al l b iom es .shp
1 - 14
14 - 41
41 - 77
77 - 127
127 - 206
206 - 368
368 - 806
806 - 2823
Sabound.shp
N
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“to discover, describe and to make an inventory of the arachnid fauna of South Africa”
National Collection of Arachnida
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Taxonomic data, descriptions, behaviour, distribution, research, images – available online as fact
sheets
National Collection of Arachnida (NCA)
SANSA – published museum datasets
6000 spp
Whole Africa
data
base
Virtual Museum
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“to organise this information in a database”
MySQL browser front end; multiple users; data cleaning; geo-reference; procedures to support data validation
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Ammoxenus psammodromus Simon, 1910 Distribution in South Africa: Eastern Cape: Vryburg (-26.95, 24.73). Free State: Boshof (Farm Elliesdal 1062) (-28.8, 25.52); Farm Table (-28.72, 24.92); Florisbad Research Station (-28.77, 26.07); Jacobsdal, Kimberley Rd. (-29.18, 24.77); Boshof (Krugersdriftdam) (-28.72, 24.92); Request (-28.60, 24.85). Limpopo: Blouberg Nature Reserve ( -22.99, 29.04); Dendron (Farm Amsterdam) (-23.37, 29.32). Western Cape: Willowmore (-33.30, 23.30). Habitat (biomes): GB, NKB, SB. Records from protected areas: 1. Records from agro-ecosystems: 1. Known distribution: Botswana*, Namibia, South Africa. Rarity index: endemicity: 2; abundance: 2 [4]. Taxonomic status: 3.
P. Webb
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VI. Prestonian shortfall – comparative species abundance data in space and time is usually scarce. The term is a reference to the work by Frank W. Preston (1896–1989) on the commonness and rarity of species and their changes in space and time
• Standardization and optimization of sampling protocols developed for inventorying and monitoring
• Adoption of analogous protocols by different teams
• Increased support for natural history collections
HOW SANSA ADDRESS THE SCIENTIFIC DILEMMA
• GAP analysis and surveys • Collecting protocol
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SAMPLING PER DEGREE SQUARE
Pitfall traps: 200
Sweeping: 2000 sweeps
Beating: 2000 beats
Leaf litter sampling: 10 samples
Winkler traps: 10
Active search: 8 hours
Night search: 2 hours
Add: tree fogging
SANSA SURVEYS
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SANSA surveys
Spider Club
By-catches
Thuthuka projects (NRF)
SUR
VEY
S
Reserve managers
Long term surveys (CIB)
Student projects
Public
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COLLECTED SPECIMENS
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LIMPOPO
18
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KWAZULU-NATAL
16
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VII. Hutchinsonian shortfall – the diverse ways of life, functional roles and consequently the sensitivity to habitat change of most species are usually unknown. This term is a reference to the work by George E. Hutchinson (1903–1991) on the niche concept and the way resources limit the distribution and abundance of species
• Identifying good indicator taxa that respond rapidly to ecological change
Studying extinction rates by indirect evidence
HOW SANSA ADDRESS THE SCIENTIFIC DILEMMA
Long term surveys funded by the Centre of Invasion Biology (CIB) are taking place at three sites in South Africa to look at climate change: • Soutpansberg, • SaniPass in the
Drakensberg and • Cederberg Mountains >
8000 samples.
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Student projects include:
• Climate change long term surveys • Effect of fire • Effect weed invaders • Agro-ecosystem surveys • Surrogate studies • Population dynamics • Use DNA to solve taxonomic
problems
SANSA
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“to use information for sustainable use and conservation planning”
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BIOME FAMILIES GENERA SPESIES ENDEMICS
FOREST 51 223 508 33
FYNBOS 62 251 636 189
GRASSLAND 56 245 636 72
NAMA KAROO 50 201 464 74
SAVANNA 62 381 1230 366
SUCCULENT K 44 117 219 49
THICKET 55 206 464 90
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SUMMARIZE
Summarize
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RESULTS
R. Gallon
E. du Preez
P. Webb
PUBLICATIONS o Scientific publications - 92 o Semi-scientific – 55 o Newsletters - 19
CONGRESS CONTRIBUTIONS o international – 20 o local - 32
NEW TAXA o 20 new genera o 247 new species
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SURVEYS SANSA –surveys undertaken: 32; other 24
IDENTIFIED Number of specimens identified during the report period: >70 000 spiders, 4 000 scorpions and about 300 solifugids
DATABASED o Entries into the NCA specimen database: 23 464 entries (70 000
specimens) o Entries into the SANSA database (published records from 16
museums): 14 703 o Number of images taken — 4000 o Number of Virtual Museum entries: 2280 entries representing
about 3400 images from 200 photographers
AWARENESS o number of talks — 52 o radio talks — 215 o TV programmes — 16 o media releases – numerous o website – spider of the week; regular updates
P. Webb
RESULTS
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WHY DO NATIONAL SURVEYS WORK?
Provide a national umbrella to work under
Sharing of knowledge and expertise
A multifaceted approach to tackling challenges
A national focus – help in funding proposals
Collation of data into one database
Making a wealth of information available to end users
P. Webb
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Artist
SANSA TEAM
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THANK YOU!
Photographers esp. Peter Webb and Vida van der Walt Co-workers Elsa graphic artist Johan ITC support Field collectors (Spider Club) and students ARC, NRF, SANBI, University Pta, Free State and Venda; Oppen -heimer & Son
P. Webb
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