Browsing by Author "Desmet, Phillip"

Now showing 1 - 6 of 6
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    The 2014 North West Biodiversity Sector Plan
    (SANBI, 2015-06-26) Schaller, Ray; Desmet, Phillip
    The North West is currently developing a Biodiversity Sector Plan (BSP 2014). Since developing a Biodiversity Assessment in 2009, the Province has undertaken a Biodiversity Inventory Project for the following taxon groups: plants, mammals and birds. A 2010 provincial land cover dataset and a 2013 national land cover dataset have also been acquired. The provincial vegetation map has been aligned to the geology and land facet maps and we are also looking at enhancing the NFEPA products with the Habitat Integrity/River Health data collected by Department of Water 43 Affairs. Today we would like to present some maps and accompanying data to generate discussion among the workshop participants about what could be done to enhance our final biodiversity sector plan.
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    The 2015 North West Biodiversity Sector Plan
    (SANBI, 2016-06-08) Schaller, Ray; Desmet, Phillip
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    Biodiversity – SA’s gold above the ground
    (ENGINEERING NEWS & MINING WEEKLY, 2020-01) Desmet, Phillip
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    Exploring functional vegetation groups for the National Vegetation Map
    (South African National Biodiversity Institute (SANBI), 2019-06) Desmet, Phillip; Todd, Simon; Geldenhys, Coert; Lotter, Mervyn; Hoare, David; Grobler, Adriaan; Slingsby, Jasper; Moncrieff, Glenn; Forsythe, Katherine
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    Gap analysis of the Important Bird Areas and national protected area networks using a Marxan analysis of threatened freshwater wetland birds
    (2018-06-21) Daniels, Neil; Knight, Richard; Desmet, Phillip; Moll, Eugene
    Marxan is reserve design software that offers decision support to achieve a minimum representation of biodiversity features for the lowest possible cost. The study aimed to answer two questions. Firstly, how well are the current reserve parameters of Important Bird Areas (IBAs) and national protected areas protecting 11 selected conservation features. Secondly, how does the reserve network system generated by Marxan compare to the existing reserve network of the IBA and national protected areas respectively. 16 829 five-by-five-minute grid cells called pentads were used as planning units. Eleven threatened freshwater wetland waterbirds were selected as conservation features. Three national threat layers were used as cost layers. These included Eskom powerlines, renewable energy and land cover data. Using the observation based conservation features from the first analysis; MAXENT was used to determine areas of ecological suitability based on 2000–2010 climate data and the Mucina Rutherford National Vegetation spatial data. This was fed into a second analysis in Marxan as modelled conservation feature data. For both modelled and observation data, the new reserve network generated by Marxan suggests many new planning units that fall outside the two existing protected area networks as areas of conservation for the selected conservation features.
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    Making the case for Protected Areas in Limpopo
    (ECOSOL GIS, LEDET, 2014-05-15) Desmet, Phillip; Cloete, Julia; Mphapuli, Dzivhu; Skowno, Andrew; Holness, Stephen