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Bathusi Environmental Consulting Authority Reference N/A BEC Report Reference: RHD – VLV - 2013 /24 Version: 2013 .11.03.2 Strategic Biodiversity EIA Assessment for the proposed Valleyview Residential Development in Witbank, Mpumalanga Province© compiled by Bathusi Environmental Consulting November 2013 - 082 3765 933 - [email protected] - 012 658 5579 - 086 636 5455 Biodiversity EIA Assessment Valleyview Residential Development, Witbank© I PROJECT DETAILS Client: Royal HaskoningDHV Strategic Biodiversity EIA Assessment for the proposed Valleyview Report name: Residential Development in Witbank, Mpumalanga Province Report type: Biodiversity Impact Assessment Report BEC Project number: RHD - VLV – 2013/24 Report Version: 2013.11.03.2 Compiled by: Riaan A. J. Robbeson (Pr.Sci.Nat.) - Bathusi Environmental Consulting Authority Reference N/A II SPECIALIST INVESTIGATORS The Natural Scientific Professions Act of 2003 aims to ‘ provide for the establishment of the South African Council of Natural Scientific Professions (SACNASP), and for the registration of professional, candidate and certified natural scientists; and to provide for matters connected therewith’. Quoting the Natural Scientific Professions Act of 2003: ‘ Only a registered person may practice in a consulting capacity ’ (20(1) – pg 14). The following specialists contributed to this report: Botanical Investigator: Riaan Robbeson (Pr.Sci.Nat.) Qualification: M.Sc. (Botany), UP Affiliation: South African Council for Natural Scientific Professions Fields of Expertise: Botanical Scientist & Ecological Scientist Registration Number: 400005/03 Affiliation: Grassland Society of Southern Africa Membership Status: Professional Member Membership Number: 667.08/08 Faunal Investigator: Dewald Kamffer (Pr.Sci.Nat.) Qualification: M.Sc. (Conservation Biology), UP Affiliation: South African Council for Natural Scientific Professions Fields of expertise: Ecological Scientist & Zoological Scientist Registration number: 400204/05 III RESERVED COPYRIGHT This report, or any part thereof, may not be amended, rearranged or changed in any manner or form, without prior consent from the authors. This report may not be copied, reproduced or used in any manner, other than for the purpose of this particular environmental application, without specific written permission from Bathusi Environmental Consulting cc. This also refers to electronic copies of this report, which are supplied for the purpose of inclusion as part of other reports, including main reports. Similarly, any recommendations, statements or conclusions drawn from or based on this report must refer to this report. Should extractions from this report be included in a main report, this report must be included in its entirety as an appendix or separate section to the main report. Report: RHD – VLV - 2013/24 Version 2013.11.03.2 _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ November 2013 i Biodiversity EIA Assessment Valleyview Residential Development, Witbank© IV CONTENTS I Project Details .......................................................................................................................................... i II Specialist Investigators ............................................................................................................................ i III Reserved Copyright ................................................................................................................................. i IV Contents .................................................................................................................................................. ii V List of Figures ........................................................................................................................................ iv VI List of Tables .......................................................................................................................................... iv VII List of Graphs ......................................................................................................................................... iv 1 Executive Summary ................................................................................................................................ 5 1.1 Biophysical Assessment ............................................................................................................. 5 1.2 Botanical Assessment ................................................................................................................. 6 1.3 Faunal Assessment .................................................................................................................... 8 1.4 Ecological Impact Assessment & Discussion ........................................................................... 10 2 Terms of Reference for this Assessment .............................................................................................. 11 3 Introduction ........................................................................................................................................... 12 4 The Biophysical Environment ............................................................................................................... 14 4.1 Location ..................................................................................................................................... 14 4.2 Land Cover & Land Use of the Region ..................................................................................... 14 4.3 Declared Areas of Conservation ............................................................................................... 15 4.4 Surface Water ........................................................................................................................... 20 4.5 Topography, Relief & Slopes .................................................................................................... 20 4.6 Geology ..................................................................................................................................... 21 4.7 Land Types & Soils ................................................................................................................... 21 5 Mpumalanga Biodiversity Conservation Plan ....................................................................................... 23 5.1 Terrestrial Biodiversity Sensitivities on a Local Scale .............................................................. 23 5.1.1 Category Designation ........................................................................................................... 23 5.1.2 MBCP Ecological Corridors .................................................................................................. 24 5.1.3 Development Restrictions in Terms of the MBCP ................................................................ 25 6 Background to the Regional Ecology .................................................................................................... 28 7 Botanical Assessment ........................................................................................................................... 30 7.1 Regional Floristic Traits ............................................................................................................ 30 7.2 Phytodiversity ............................................................................................................................ 31 7.2.1 Regional Phytodiversity (POSA, 2012)................................................................................. 31 7.2.2 Survey Results - Recorded Phytodiversity (Species Richness) ........................................... 32 7.3 Plant Taxa of Conservation Importance ................................................................................... 34 7.3.1 Available Information ............................................................................................................ 34 7.3.2 Survey Results (January 2013) ............................................................................................ 36 7.3.3 Weeds and Invasive Plants .................................................................................................. 37 7.4 Vegetation Development Drivers .............................................................................................. 38 7.5 Macro Habitat types & Variations.............................................................................................. 38 7.5.1 Degraded & Transformed Habitat ......................................................................................... 39 7.5.2 Wetland Habitat Types ......................................................................................................... 41 7.5.3 Rocky Grassland Habitat ...................................................................................................... 45 7.6 Floristic Sensitivity of the Study site ......................................................................................... 51 7.7 Discussion ................................................................................................................................. 55 8 Faunal Assessment .............................................................................................................................. 57 8.1 Regional Faunal
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