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Biodiversity feature information for use in the C.A.P.E. Fine-Scale Biodiversity Plans. These plans are to serve as the primary spatial biodiversity informant guiding proactive conservation action and directing landuse planning and reactive decision-making in local, provincial and national spheres of government.

This is one of a core set of FSP biodiversity informants (GIS files) for this region (West Coast:

Saldanha Peninsula and Northwest Sandveld):

• cba_terrestrial_ht

• cba_aquatic_ht

• cesa_aquatic_ht

• cesa_aquatic_polyline_ht

• oesa_aquatic_ht

• oesa_aquatic_polyline_ht

These should be used in conjunction with Protected Area information (note that CBAs fall exclusively outside of protected areas) and FSP landcover information (such that “Other Natural Areas” and “No Natural Remaining” can be discerned; recommend FSP 10m summarized landcover product).

No Copyright

Methodology:

This layer is derived from the Chief Directorate Surveys and Mapping (CDSM) 2006 1:50,000 topographic vector data: river_line.shp; in combination with the rivsq4_ss_final.shp and sq4_ss_final.shp datasets submitted by CSIR to the FSP project. The CATEGORY distinction was made in the rivsq4_ss_final.shp (rivers) and sq4_ss_final.shp (subcatchments) datasets between CBAs/CESAs/OESAs (Critical Biodiversity Areas / Critical Ecological Support Areas / Other Ecological Support Areas) and was transferred/attributed to the appropriate segment

in the river_line.shp.

The method for selecting Critical Biodiversity Areas (CBAs), Critical Ecological Support Areas (CESAs), and Other Ecological Support Areas (OESAs) from the full set of wetland, river, and estuarine features was based on a systematic conservation planning approach whereby targets (quantitative objectives) were

established for a representative suite of biodiversity features, and the decision support software Marxan was used (via CLUZ interface software) to generate the best spatial solutions (i.e., most efficient selection of planning units required) for meeting conservation targets. For further detailed information about the methodology see the FSP Technical Reports

Available documentation:

Pence, Genevieve Q.K. 2008 (in prep). C.A.P.E. Fine-Scale Systematic Conservation Planning Assessment: Technical Report. Produced for CapeNature. Cape Town, South Africa.

Job, N., Snaddon, K., Day, L., Nel, J. and Smith-Adoa, L. 2008 (in prep). C.A.P.E. Fine-scale Biodiversity Planning Project: Freshwater Ecosystems of the North-west Sandveld and Saldanha Peninsula planning domain. Produced for CapeNature. Cape Town, South Africa.

Project Name:

Fine-Scale Biodiversity Planning project, as part of Component 5.1 of Cape Action Plan for People and the Environment (C.A.P.E.)

Creator Organisation:

Genevieve Q.K. Pence, Conservation Planner

Consultant

SANS 1878

FGDC-STD-001-1998