Integrated Reserve Management Plan

Total Page:16

File Type:pdf, Size:1020Kb

Integrated Reserve Management Plan INTEGRATED RESERVE MANAGEMENT PLAN ZANDVLEI ESTUARY NATURE RESERVE June 2011 AUTHORIZATION PAGE This Integrated Management Plan for the Zandvlei Estuary Nature Reserve was drafted by the Area Manager and recommended by the Reserve Planning Team, a multi-disciplinary team consisting of: Reserve Planning Team: Branch Manager, Regional Manager, Area Manager, Biophysical Specialist, Biodiversity Coordinator, Sustainable Resource Specialist and Monitoring and Evaluation Coordinator _____________________________________ Casandra Sheasby – Area Manager Biodiversity Management Branch Environmental Resource Management Department City of Cape Town Name and Title Signature and Date Mr Jacob Hugo Executive Director: Economic, Environment and Spatial Planning Directorate Approved by: Name and Title Signature and Date Mr Anton Bredell Minister of Local Government, Environmental Affairs and Development Planning DOCUMENTED Integrated Reserve Management Plan This management plan replaces any previous versions Document Version: Prepared by: Adele Pretorius Version.02: June 2011 Responsibility: Reserve Management plans Document reference: Approved by: Mr Anton Bredell (DEA&DP reference to be Position: Minister of Local Government, Environmental inserted) Affairs and Development Planning Date of approval: Date of implementation : Immediate Distribution: Distribute as Reserve Management Plan to relevant staff in the City of Cape Town for immediate implementation. Date for Revision: June 2016 INTEGRATED RESERVE MANAGEMENT PLAN Compiled by Dalton Gibbs, Vaughn Thompson and Cassandra Sheasby Biodiversity Management Branch Environmental Resource Management Department City of Cape Town ZANDVLEI ESTUARY NATURE RESERVE June 2011 ISBN NUMBER TABLE OF CONTENTS PART SECTIONS AND SUBSECTIONS PAGE NUMBER NUMBER List of maps ii List of figures ii List of tables ii List of appendices iii List of abbreviations used iv Part 1 1. Introduction 1 Description 1.1 Aim of the Integrated Reserve Management Plan 3 1.2 Location and extent 6 2. Description of landholdings and ownership 9 2.1 Property details and title deed information 9 2.2 Landscape perspective 12 2.3 Physical environment 13 2.4 Biological environment 18 2.5 Socio-political context 23 2.6 Protected-area expansion 24 3. Purpose, vision/mission, significance/value 24 3.1 Purpose of the protected area 24 3.2 Vision and mission 25 3.3 Significance of property (biodiversity, heritage and social) 26 Part 2 4. Administrative and legal framework for the management 28 Management authority policy 4.1 Legal framework 28 framework 4.2 Administrative framework 35 5. Protected-area policy framework &guiding management 36 principles 5.1 Management objectives 36 5.2 SWOT analysis 45 5.3 Protected-area policy framework and guiding 47 managementprinciples 5.4 Sensitivity analysis of Zandvlei Estuary Nature Reserve 53 5.5 Zoningplan of Zandvlei Estuary Nature Reserve 54 6. Development plan 57 7. Costing plan 58 Part 3 8. Monitoring &auditing 60 Monitoring &auditing 8.1 Annual audit procedure 60 8.2 Management plan review 61 8.3 Biodiversity monitoring 61 Part 4 9. References 63 References Part 5 10. Appendices 65 Appendices Integrated Reserve Management Plan | i List of maps Page numbers Map 1: Reserve location in Cape Town 7 Map 2: Reserve boundaries 8 Map 3: Reserve erven 11 Map 4: Catchments, including rivers and wetlands 16 Map 5: Nature reserve and biodiversity network 17 Map 6: Reserve zoning 56 List of figures Page numbers Figure 1: The Zandvlei estuary, comprising the channel, vlei, marina and wetland, with the 1-in-100-year floodline shown 2 Figure 2: Elements of the IRMP 4 Figure 3: Legal and planning framework for the IRMP 5 List of tables Page numbers Table 1: Erf numbers for Zandvlei Estuary Nature Reserve 9 Table 2.1: Average monthly rainfall as measured at Muizenberg weather 13 station Table 2.2: Actual monthly rainfall as measured at Park Island, Zandvlei 13 Table 3: Legal framework 28 Table 4: Current staffing complement of Zandvlei Nature Reserve 35 Table 5: Management objectives for Zandvlei Estuary Nature Reserve 36 Table 6: Socio-economic objectives for Zandvlei Estuary Nature Reserve 41 Table 7: Preliminary SWOT analysis 45 Table 8: Broad costing management plan for the reserve 58 Table 9: Current monitoring arrangements at Zandvlei Estuary Nature 62 Reserve Integrated Reserve Management Plan | ii List of appendices A. Legal Documents Appendix 1 Surveyor-general diagrams for Zandvlei Estuary Nature Reserve B. Species checklists Appendix 2 Plant species list Appendix 3 Mammal species list Appendix 4 Bird species list Appendix 5 Reptile species list Appendix 6 Amphibian species list Appendix 7 Invertebrate species list Appendix 8 Fish species list C. Other documents, as required Appendix 9 Historical aerial photographs of Zandvlei Appendix 10 Comprehensive security audit of the Biodiversity Management Branch of the City of Cape Town Appendix 11 Zandvlei Estuary Nature Reserve fire management plan Appendix 12 Sensitivity-value analysis and zoning Appendix 13 Management Effectiveness Tracking Tool South Africa Integrated Reserve Management Plan | iii List of abbreviations used APO annual plan of operations C.A.P.E Cape Action for People and the Environment CDF Conservation Development Framework CFR Cape Floristic Region EIA environmental impact assessment IDP Integrated Development Plan IMEP Integrated Metropolitan Environmental Policy IRMP Integrated Reserve Management Plan IUCN International Union for Conservation of Nature LBSAP Local Biodiversity Strategy and Action Plan METT-SA Management Effectiveness Tracking Tool South Africa MOU memorandum of understanding RPC Reserve Planning Committee SANBI South African National Biodiversity Institute SWOT strengths, weaknesses, opportunities, threats TOR terms of reference Integrated Reserve Management Plan | iv PART 1 DESCRIPTION 1. INTRODUCTION Zandvlei is an estuary located in the south-western corner of the Cape Flats, near Muizenberg, a small coastal town on the False Bay coastline. The reserve was started when 22 ha along the northern shore of the vlei was proclaimed the Zandvlei Bird Sanctuary in 1978. This was enlarged to 204 ha with the proclamation of the Greater Zandvlei Estuary Nature Reserve (the expansion of the boundaries) on 26 October 2006 in terms of Provincial Gazette 6389/27, October 2006 (PN 344/2006). The reserve lies some 20,4 km from Cape Town. The catchment for the Zandvlei estuary falls entirely within the boundaries of the City of Cape Town, and is bordered by the Muizenberg mountain, Silvermine plateau, Constantia mountain, Cecilia Ridge, Wynberg Hill and a less conspicuous watershed along the eastern boundary. It is a relatively small catchment, comprising an area of 92 km2, or 9,655 ha, and is drained by a number of rivers and streams, of which the main ones are the Little Princess Vlei stream, Westlake stream, the Keysers river, Langvlei canal and the Sand river canal/Diep river. These rivers converge on Zandvlei, with the Keysers river and Westlake stream entering it through an extensive reed bed on its north-western margin, while the Sand river canal enters the vlei west of Wildwood Island. The wetland area covers some 60 ha, while the main body of the vlei is 56 ha. In addition, the system includes a marina of 31 ha along its eastern margin, and an outlet channel of 9 ha, which links to the sea on the north-western shore of False Bay. Both the northern and lateral boundaries comprise the 100-year flood line, as shown in figure 1. Integrated Reserve Management Plan | 1 Figure 1: The Zandvlei estuary, comprising the channel, vlei, marina and wetland, with the 1-in- 100-year flood line shown Integrated Reserve Management Plan | 2 Although the catchment as a whole has a relatively low population, the eastern parts together with lower reaches of the river – including the estuary – fall within a highly urbanised environment. The 1996 census data put the population figure at 10472 for Muizenberg, Lakeside and Marina da Gama alone, while the projections from Thornton and colleagues (1995) suggest that the population for the catchment as a whole could be of the order of 100000. There is also an increased understanding of the need to maintain the environmental health of Zandvlei in order to optimise the recreational and conservation benefits. In addition, Zandvlei Estuary Nature Reserve has a strong environmental education programme, which involves both students from local schools and a number of environmental clubs. Local residents are actively involved in the management of the area. The strategic management planning process that resulted in the development of an Integrated Reserve Management Plan (IRMP) for Zandvlei Estuary Nature Reserve began with the definition of the vision followed by the purpose of the reserve. This purpose is then supported by desired states for the reserve. The reserve objectives contribute to realising the purpose and desired states. For each desired state, a number of management objectives are identified. These management objectives are then implemented through the identification of outputs. Objectives for each desired state are prioritised for the five-year time horizon of the plan. Time frames, deliverables, performance indicators and targets are then allocated to each objective, or a group of linked outputs contributing to the desired state. In context, this IRMP is a dynamic document, and the detailed subsidiary plans should be updated on an annual basis or as soon as new information comes to light
Recommended publications
  • Freshwater Fishes
    WESTERN CAPE PROVINCE state oF BIODIVERSITY 2007 TABLE OF CONTENTS Chapter 1 Introduction 2 Chapter 2 Methods 17 Chapter 3 Freshwater fishes 18 Chapter 4 Amphibians 36 Chapter 5 Reptiles 55 Chapter 6 Mammals 75 Chapter 7 Avifauna 89 Chapter 8 Flora & Vegetation 112 Chapter 9 Land and Protected Areas 139 Chapter 10 Status of River Health 159 Cover page photographs by Andrew Turner (CapeNature), Roger Bills (SAIAB) & Wicus Leeuwner. ISBN 978-0-620-39289-1 SCIENTIFIC SERVICES 2 Western Cape Province State of Biodiversity 2007 CHAPTER 1 INTRODUCTION Andrew Turner [email protected] 1 “We live at a historic moment, a time in which the world’s biological diversity is being rapidly destroyed. The present geological period has more species than any other, yet the current rate of extinction of species is greater now than at any time in the past. Ecosystems and communities are being degraded and destroyed, and species are being driven to extinction. The species that persist are losing genetic variation as the number of individuals in populations shrinks, unique populations and subspecies are destroyed, and remaining populations become increasingly isolated from one another. The cause of this loss of biological diversity at all levels is the range of human activity that alters and destroys natural habitats to suit human needs.” (Primack, 2002). CapeNature launched its State of Biodiversity Programme (SoBP) to assess and monitor the state of biodiversity in the Western Cape in 1999. This programme delivered its first report in 2002 and these reports are updated every five years. The current report (2007) reports on the changes to the state of vertebrate biodiversity and land under conservation usage.
    [Show full text]
  • City of Cape Town | Table Bay Nature Reserve | Quarterly Report | January to March 2014 1
    This quarterly report summarises the activities of the Biodiversity Management Branch at the Table Bay Nature Reserve for the period from 1 January to 31 March 2014. CONTENTS PAGE 1 AREA MANAGER’S SECTION 2 2 HIGHLIGHTS AND CHALLENGES 3 3 BIODIVERSITY MANAGEMENT 4 4 NATURE CONSERVATION 6 5 WATER MANAGEMENT 8 6 FIRE MANAGEMENT 9 7 COMPLIANCE MANAGEMENT 9 8 PEOPLE AND CONSERVATION 10 9 HUMAN RESOURCE MANAGEMENT 13 10 VISITORS AND INCOME 14 11 INFRASTRUCTURE MANAGEMENT 16 12 FINANCIAL MANAGEMENT 16 Appendix A: Press articles 17 Appendix B: Species lists 22 Figure 1. BirdLife SA's Important Bird Area (IBA) sign near the Rietvlei Education Centre. City of Cape Town | Table Bay Nature Reserve | Quarterly Report | January to March 2014 1 1 AREA MANAGER’S SECTION 1.1 Typha capensis (bulrush) reeds Numerous communications have been received from neighbours around the Table Bay Nature Reserve about Typha capensis (bulrush) reeds and the seeds that they release during February and March. From the 1950s to 1980s there were several drastic alterations to the hydrology of the wetlands in the Table Bay area, including major excavations and dredging, construction of major roads and railways, and the development of residential and industrial areas. Today these developments and roads act as drainage impoundments. Surface storm-water runoff and treated wastewater effluent is directed into the natural areas. This is changing the dynamic seasonal and temporary wetlands into more static nutrient-enriched permanent water areas. As a result of this urbanisation, elevated water and nutrient levels are more likely to persist throughout the Rietvlei wetland system.
    [Show full text]
  • Exploring the Benefits and Challenges of Indigenous Foods in an African Context Using a Case Study of Community Gardens in the Western Cape of South Africa
    Exploring the benefits and challenges of indigenous foods in an African context using a case study of community gardens in the Western Cape of South Africa by Francia-Marié de Bruin Thesis presented in partial fulfilment of the requirements for the degree Of Master of Philosophy in Sustainable Development in the Faculty of Economic and Management Sciences at Stellenbosch University Supervisor: Dr Laura Pereira Co-Supervisor: Catherine (Loubie) Rusch March 2018 Stellenbosch University https://scholar.sun.ac.za Declaration By submitting this thesis electronically, I declare that the entirety of the work contained therein is my own, original work, that I am the sole author thereof (save to the extent explicitly otherwise stated), that reproduction and publication thereof by Stellenbosch University will not infringe any third-party rights and that I have not previously in its entirety or in part submitted it for obtaining any qualification. Date: March 2018 Copyright © 2018 Stellenbosch University All rights reserved i | P a g e Stellenbosch University https://scholar.sun.ac.za Abstract Research suggests that the benefits and value of indigenous foods within the South African context have not been fully utilised. Their potential value to the South African food system and food security which is embedded within it, could be enhanced were their benefits to be explored more comprehensively. Therefore, the aim of this research was to systematically review literature using relevant search criteria and databases relating to underutilised indigenous crop species and foods in Africa as well as abroad (including the Oceania, South America and Asia). The intention was to provide an encompassing overview of both literature and literature gaps regarding nutritional, environmental, economic, and social-cultural benefits and challenges of indigenous food plants.
    [Show full text]
  • Driftsands Nature Reserve Complex PAMP
    EXECUTIVE SUMMARY The Driftsands Nature Reserve is situated on the Cape Flats, approximately 25 km east of Cape Town on the National Route 2, in the Western Cape Province. The reserve is situated adjacent to the Medical Research Centre in Delft and is bounded by highways and human settlement on all sides. Driftsands is bound in the northwest by the R300 and the National Route 2 and Old Faure road in the south. The northern boundary is bordered by private landowners, while the eastern boundary is formed by Mfuleni Township. The Nature Reserve falls within the City of Cape Town Metropolitan Municipality. The reserve experiences a Mediterranean-type climate with warm dry summers, and cool wet winter seasons. Gale force winds from the south east prevail during the summer months, while during the winter months, north westerly winds bring rain. Driftsands Nature Reserve represents of one of the largest remaining remnants of intact Cape Flats Dune Strandveld which is classified as Endangered, and harbours at least two Endangered Cape Flats endemics, Muraltia mitior and Passerina paludosa. The Kuils River with associated floodplain wetlands, dune strandveld depressions and seeps are representative of a wetland type that has been subjected to high cumulative loss, and provides regulatory ecosystem services such as flood attenuation, ground water recharge/discharge and water quality improvement. The site provides access for cultural and/or religious practices and provides opportunities for quality curriculum based environmental education. Driftsands Nature Reserve is given the highest priority rating within the Biodiversity Network (BioNet), the fine scale conservation plan for the City of Cape Town.
    [Show full text]
  • Biodiversity and Ecology of Critically Endangered, Rûens Silcrete Renosterveld in the Buffeljagsrivier Area, Swellendam
    Biodiversity and Ecology of Critically Endangered, Rûens Silcrete Renosterveld in the Buffeljagsrivier area, Swellendam by Johannes Philippus Groenewald Thesis presented in fulfilment of the requirements for the degree of Masters in Science in Conservation Ecology in the Faculty of AgriSciences at Stellenbosch University Supervisor: Prof. Michael J. Samways Co-supervisor: Dr. Ruan Veldtman December 2014 Stellenbosch University http://scholar.sun.ac.za Declaration I hereby declare that the work contained in this thesis, for the degree of Master of Science in Conservation Ecology, is my own work that have not been previously published in full or in part at any other University. All work that are not my own, are acknowledge in the thesis. ___________________ Date: ____________ Groenewald J.P. Copyright © 2014 Stellenbosch University All rights reserved ii Stellenbosch University http://scholar.sun.ac.za Acknowledgements Firstly I want to thank my supervisor Prof. M. J. Samways for his guidance and patience through the years and my co-supervisor Dr. R. Veldtman for his help the past few years. This project would not have been possible without the help of Prof. H. Geertsema, who helped me with the identification of the Lepidoptera and other insect caught in the study area. Also want to thank Dr. K. Oberlander for the help with the identification of the Oxalis species found in the study area and Flora Cameron from CREW with the identification of some of the special plants growing in the area. I further express my gratitude to Dr. Odette Curtis from the Overberg Renosterveld Project, who helped with the identification of the rare species found in the study area as well as information about grazing and burning of Renosterveld.
    [Show full text]
  • TNP SOK 2011 Internet
    GARDEN ROUTE NATIONAL PARK : THE TSITSIKAMMA SANP ARKS SECTION STATE OF KNOWLEDGE Contributors: N. Hanekom 1, R.M. Randall 1, D. Bower, A. Riley 2 and N. Kruger 1 1 SANParks Scientific Services, Garden Route (Rondevlei Office), PO Box 176, Sedgefield, 6573 2 Knysna National Lakes Area, P.O. Box 314, Knysna, 6570 Most recent update: 10 May 2012 Disclaimer This report has been produced by SANParks to summarise information available on a specific conservation area. Production of the report, in either hard copy or electronic format, does not signify that: the referenced information necessarily reflect the views and policies of SANParks; the referenced information is either correct or accurate; SANParks retains copies of the referenced documents; SANParks will provide second parties with copies of the referenced documents. This standpoint has the premise that (i) reproduction of copywrited material is illegal, (ii) copying of unpublished reports and data produced by an external scientist without the author’s permission is unethical, and (iii) dissemination of unreviewed data or draft documentation is potentially misleading and hence illogical. This report should be cited as: Hanekom N., Randall R.M., Bower, D., Riley, A. & Kruger, N. 2012. Garden Route National Park: The Tsitsikamma Section – State of Knowledge. South African National Parks. TABLE OF CONTENTS 1. INTRODUCTION ...............................................................................................................2 2. ACCOUNT OF AREA........................................................................................................2
    [Show full text]
  • Cintia Luz.Pdf
    Cíntia Luíza da Silva Luz Filogenia e sistemática de Schinus L. (Anacardiaceae), com revisão de um clado endêmico das matas nebulares andinas Phylogeny and systematics of Schinus L. (Anacardiaceae), with revision of a clade endemic to the Andean cloud forests Tese apresentada ao Instituto de Biociências da Universidade de São Paulo, para obtenção de Título de Doutor em Ciências, na Área de Botânica. Orientador: Dr. José Rubens Pirani São Paulo 2017 Luz, Cíntia Luíza da Silva Filogenia e sistemática de Schinus L. (Anacardiaceae), com revisão de um clado endêmico das matas nebulares andinas Número de páginas: 176 Tese (Doutorado) - Instituto de Biociências da Universidade de São Paulo. Departamento de Botânica. 1. Anacardiaceae 2. Schinus 3. Filogenia 4. Taxonomia vegetal I. Universidade de São Paulo. Instituto de Biociências. Departamento de Botânica Comissão julgadora: ______________________________ ______________________________ Prof(a). Dr.(a) Prof(a). Dr.(a) ______________________________ ______________________________ Prof(a). Dr.(a) Prof(a). Dr.(a) _____________________________________ Prof. Dr. José Rubens Pirani Orientador Ao Luciano Luz, pelo entusiasmo botânico, companheirismo e dedicação aos Schinus Esta é a estória. Ia um menino, com os tios, passar dias no lugar onde se construía a grande cidade. Era uma viagem inventada no feliz; para ele, produzia-se em caso de sonho. Saíam ainda com o escuro, o ar fino de cheiros desconhecidos. A mãe e o pai vinham trazê-lo ao aeroporto. A tia e o tio tomavam conta dele, justínhamente. Sorria-se, saudava-se, todos se ouviam e falavam. O avião era da companhia, especial, de quatro lugares. Respondiam-lhe a todas as perguntas, até o piloto conversou com ele.
    [Show full text]
  • Intraspecific Body Size Frequency Distributions of Insects
    Intraspecific Body Size Frequency Distributions of Insects E. Jeanne Gouws1¤, Kevin J. Gaston2, Steven L. Chown1* 1 Department of Botany and Zoology, Centre for Invasion Biology, Stellenbosch University, Stellenbosch, South Africa, 2 Biodiversity and Macroecology Group, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom Abstract Although interspecific body size frequency distributions are well documented for many taxa, including the insects, intraspecific body size frequency distributions (IaBSFDs) are more poorly known, and their variation among mass-based and linear estimates of size has not been widely explored. Here we provide IaBSFDs for 16 species of insects based on both mass and linear estimates and large sample sizes (n$100). In addition, we review the published IaBSFDs for insects, though doing so is complicated by their under-emphasis in the literature. The form of IaBSFDs can differ substantially between mass- based and linear measures. Nonetheless, in non-social insects they tend to be normally distributed (18 of 27 species) or in fewer instances positively skewed. Negatively skewed distributions are infrequently reported and log transformation readily removes the positive skew. Sexual size dimorphism does not generally cause bimodality in IaBSFDs. The available information on IaBSFDs in the social insects suggests that these distributions are usually positively skewed or bimodal (24 of 30 species). However, only c. 15% of ant genera are polymorphic, suggesting that normal distributions are probably more common, but less frequently investigated. Although only 57 species, representing seven of the 29 orders of insects, have been considered here, it appears that whilst IaBSFDs are usually normal, other distribution shapes can be found in several species, though most notably among the social insects.
    [Show full text]
  • Sand Mine Near Robertson, Western Cape Province
    SAND MINE NEAR ROBERTSON, WESTERN CAPE PROVINCE BOTANICAL STUDY AND ASSESSMENT Version: 1.0 Date: 06 April 2020 Authors: Gerhard Botha & Dr. Jan -Hendrik Keet PROPOSED EXPANSION OF THE SAND MINE AREA ON PORTION4 OF THE FARM ZANDBERG FONTEIN 97, SOUTH OF ROBERTSON, WESTERN CAPE PROVINCE Report Title: Botanical Study and Assessment Authors: Mr. Gerhard Botha and Dr. Jan-Hendrik Keet Project Name: Proposed expansion of the sand mine area on Portion 4 of the far Zandberg Fontein 97 south of Robertson, Western Cape Province Status of report: Version 1.0 Date: 6th April 2020 Prepared for: Greenmined Environmental Postnet Suite 62, Private Bag X15 Somerset West 7129 Cell: 082 734 5113 Email: [email protected] Prepared by Nkurenkuru Ecology and Biodiversity 3 Jock Meiring Street Park West Bloemfontein 9301 Cell: 083 412 1705 Email: gabotha11@gmail com Suggested report citation Nkurenkuru Ecology and Biodiversity, 2020. Section 102 Application (Expansion of mining footprint) and Final Basic Assessment & Environmental Management Plan for the proposed expansion of the sand mine on Portion 4 of the Farm Zandberg Fontein 97, Western Cape Province. Botanical Study and Assessment Report. Unpublished report prepared by Nkurenkuru Ecology and Biodiversity for GreenMined Environmental. Version 1.0, 6 April 2020. Proposed expansion of the zandberg sand mine April 2020 botanical STUDY AND ASSESSMENT I. DECLARATION OF CONSULTANTS INDEPENDENCE » act/ed as the independent specialist in this application; » regard the information contained in this
    [Show full text]
  • The Radiation of Satyrini Butterflies (Nymphalidae: Satyrinae): A
    Zoological Journal of the Linnean Society, 2011, 161, 64–87. With 8 figures The radiation of Satyrini butterflies (Nymphalidae: Satyrinae): a challenge for phylogenetic methods CARLOS PEÑA1,2*, SÖREN NYLIN1 and NIKLAS WAHLBERG1,3 1Department of Zoology, Stockholm University, 106 91 Stockholm, Sweden 2Museo de Historia Natural, Universidad Nacional Mayor de San Marcos, Av. Arenales 1256, Apartado 14-0434, Lima-14, Peru 3Laboratory of Genetics, Department of Biology, University of Turku, 20014 Turku, Finland Received 24 February 2009; accepted for publication 1 September 2009 We have inferred the most comprehensive phylogenetic hypothesis to date of butterflies in the tribe Satyrini. In order to obtain a hypothesis of relationships, we used maximum parsimony and model-based methods with 4435 bp of DNA sequences from mitochondrial and nuclear genes for 179 taxa (130 genera and eight out-groups). We estimated dates of origin and diversification for major clades, and performed a biogeographic analysis using a dispersal–vicariance framework, in order to infer a scenario of the biogeographical history of the group. We found long-branch taxa that affected the accuracy of all three methods. Moreover, different methods produced incongruent phylogenies. We found that Satyrini appeared around 42 Mya in either the Neotropical or the Eastern Palaearctic, Oriental, and/or Indo-Australian regions, and underwent a quick radiation between 32 and 24 Mya, during which time most of its component subtribes originated. Several factors might have been important for the diversification of Satyrini: the ability to feed on grasses; early habitat shift into open, non-forest habitats; and geographic bridges, which permitted dispersal over marine barriers, enabling the geographic expansions of ancestors to new environ- ments that provided opportunities for geographic differentiation, and diversification.
    [Show full text]
  • Towards Ecological Restoration Strategies for Penisula Shale
    Towards ecological restoration strategies for Peninsula Shale Renosterveld: testing the effects of disturbance-intervention treatments on seed germination on Devil’s Peak, Cape Town by Penelope Anne Waller Dissertation presented in fulfilment of the requirements of the degree of Master of Science at the University of Cape Town, Department of Environmental and Geographical Sciences Private Bag X3, Rondebosch 7701, Cape Town University of Cape Town Supervisor: Dr Pippin Anderson Co-supervisor: Dr Pat Holmes September 2013 The copyright of this thesis vests in the author. No quotation from it or information derived from it is to be published without full acknowledgement of the source. The thesis is to be used for private study or non- commercial research purposes only. Published by the University of Cape Town (UCT) in terms of the non-exclusive license granted to UCT by the author. University of Cape Town D eclarationeclarationeclaration I, the undersigned, know the meaning of plagiarism and declare that all of the work in the document, save for that which is properly acknowledged, is my own. University of Cape Town Signature: _____________________________ Date: ____________________________ i AAbstractbstractAbstract The ecological restoration of Peninsula Shale Renosterveld is essential to redress its conservation- target shortfall. The ecosystem is Critically Endangered and, along with all other renosterveld types in the Cape lowlands, declared ‘totally irreplaceable’. Further to conserving all extant remnants, ecological restoration is required to play a critical part in securing biodiversity and to meeting conservation targets. Remnants of Peninsula Shale Renosterveld are situated either side of the Cape Town city bowl and, despite formal protection, areas of the ecosystem are degraded and require restoration intervention.
    [Show full text]
  • The Monophyly of Bursera and Its Impact for Divergence Times of Burseraceae
    TAXON 61 (2) • April 2012: 333–343 Becerra & al. • Monophyly of Bursera The monophyly of Bursera and its impact for divergence times of Burseraceae Judith X. Becerra,1 Kogi Noge,2 Sarai Olivier1 & D. Lawrence Venable3 1 Department of Biosphere 2, University of Arizona, Tucson, Arizona 85721, U.S.A. 2 Department of Biological Production, Akita Prefectural University, Akita 010-0195, Japan 3 Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, Arizona 85721, U.S.A. Author for correspondence: Judith X. Becerra, [email protected] Abstract Bursera is one of the most diverse and abundant groups of trees and shrubs of the Mexican tropical dry forests. Its interaction with its specialist herbivores in the chrysomelid genus Blepharida, is one of the best-studied coevolutionary systems. Prior studies based on molecular phylogenies concluded that Bursera is a monophyletic genus. Recently, however, other molecular analyses have suggested that the genus might be paraphyletic, with the closely related Commiphora, nested within Bursera. If this is correct, then interpretations of coevolution results would have to be revised. Whether Bursera is or is not monophyletic also has implications for the age of Burseraceae, since previous dates were based on calibrations using Bursera fossils assuming that Bursera was paraphyletic. We performed a phylogenetic analysis of 76 species and varieties of Bursera, 51 species of Commiphora, and 13 outgroups using nuclear DNA data. We also reconstructed a phylogeny of the Burseraceae using 59 members of the family, 9 outgroups and nuclear and chloroplast sequence data. These analyses strongly confirm previous conclusions that this genus is monophyletic.
    [Show full text]