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Address: Windhoek, Windhoek, Namibia

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Papers by Herta Kolberg

Beach hummocks are important ecological components of coastal ecosystems. Although hummocks are n... more Beach hummocks are important ecological components of coastal ecosystems. Although hummocks are naturally adapted to harsh conditions, reestablishing them in arid areas poses great challenges. During a collaborative project, research-ers from Namdeb Diamond Corporation and the Millennium Seed Bank Partnership investigated practical methods to reestablish saltbush (Salsola nollothensis) beach hummocks to restore areas disturbed by alluvial diamond mining. With focus on simple methods that can be implemented over large areas, collecting seed-containing debris, placing wind-breaks, and seeding these with debris are some of the means currently investigated. Preliminary findings indicate that seed quality may deteriorate quickly if seeds are stored in ambient conditions, and storage under controlled conditions and/or seed harvesting shortly before restoration is recommended. Laboratory tests indicate a naturally high proportion of empty seeds, possibly short seed longevity, and that seed...

South African Journal of Botany, 2008

Bothalia - African Biodiversity and Conservation

South African Journal of Botany, 2011

Adenia pechuelii, an unusual pachycaul member of the Passifloraceae family, has restricted range ... more Adenia pechuelii, an unusual pachycaul member of the Passifloraceae family, has restricted range in the Namib Desert and was previously considered threatened on the Namibian Red Data list. The area of a planned uranium mine on farm Valencia in the central Namib Desert supports the largest population found to-date in Namibia. After an initial environmental impact assessment, the mining company commissioned a survey of the A. pechuelii population and an experiment to establish the best methodology for relocating plants. Sixty plants were transplanted to a nearby area that would remain unaffected by mining. Different treatments, including watering regimes, were applied but no significant differences were detected between any of these. All plants survived one year after transplanting and showed signs of vitality. Four years after transplanting 80% of plants were alive. The implications these findings have for the conservation and relocation of A. pechuelii are discussed.

South African Journal of Botany

Adenia pechuelii, an unusual pachycaul member of the Passifloraceae family, has restricted range ... more Adenia pechuelii, an unusual pachycaul member of the Passifloraceae family, has restricted range in the Namib Desert and was previously considered threatened on the Namibian Red Data list. The area of a planned uranium mine on farm Valencia in the central Namib Desert supports the largest population found to-date in Namibia. After an initial environmental impact assessment, the mining company commissioned a survey of the A. pechuelii population and an experiment to establish the best methodology for relocating plants. Sixty plants were transplanted to a nearby area that would remain unaffected by mining. Different treatments, including watering regimes, were applied but no significant differences were detected between any of these. All plants survived one year after transplanting and showed signs of vitality. Four years after transplanting 80% of plants were alive. The implications these findings have for the conservation and relocation of A. pechuelii are discussed.

South African Journal of Botany, 2013

Ecological Restoration, 2011

Beach hummocks are important ecological components of coastal ecosystems. Although hummocks are n... more Beach hummocks are important ecological components of coastal ecosystems. Although hummocks are naturally adapted to harsh conditions, reestablishing them in arid areas poses great challenges. During a collaborative project, research-ers from Namdeb Diamond ...

Beach hummocks are important ecological components of coastal ecosystems. Although hummocks are n... more Beach hummocks are important ecological components of coastal ecosystems. Although hummocks are naturally adapted to harsh conditions, reestablishing them in arid areas poses great challenges. During a collaborative project, research-ers from Namdeb Diamond Corporation and the Millennium Seed Bank Partnership investigated practical methods to reestablish saltbush (Salsola nollothensis) beach hummocks to restore areas disturbed by alluvial diamond mining. With focus on simple methods that can be implemented over large areas, collecting seed-containing debris, placing wind-breaks, and seeding these with debris are some of the means currently investigated. Preliminary findings indicate that seed quality may deteriorate quickly if seeds are stored in ambient conditions, and storage under controlled conditions and/or seed harvesting shortly before restoration is recommended. Laboratory tests indicate a naturally high proportion of empty seeds, possibly short seed longevity, and that seed...

South African Journal of Botany, 2008

Bothalia - African Biodiversity and Conservation

South African Journal of Botany, 2011

Adenia pechuelii, an unusual pachycaul member of the Passifloraceae family, has restricted range ... more Adenia pechuelii, an unusual pachycaul member of the Passifloraceae family, has restricted range in the Namib Desert and was previously considered threatened on the Namibian Red Data list. The area of a planned uranium mine on farm Valencia in the central Namib Desert supports the largest population found to-date in Namibia. After an initial environmental impact assessment, the mining company commissioned a survey of the A. pechuelii population and an experiment to establish the best methodology for relocating plants. Sixty plants were transplanted to a nearby area that would remain unaffected by mining. Different treatments, including watering regimes, were applied but no significant differences were detected between any of these. All plants survived one year after transplanting and showed signs of vitality. Four years after transplanting 80% of plants were alive. The implications these findings have for the conservation and relocation of A. pechuelii are discussed.

South African Journal of Botany

Adenia pechuelii, an unusual pachycaul member of the Passifloraceae family, has restricted range ... more Adenia pechuelii, an unusual pachycaul member of the Passifloraceae family, has restricted range in the Namib Desert and was previously considered threatened on the Namibian Red Data list. The area of a planned uranium mine on farm Valencia in the central Namib Desert supports the largest population found to-date in Namibia. After an initial environmental impact assessment, the mining company commissioned a survey of the A. pechuelii population and an experiment to establish the best methodology for relocating plants. Sixty plants were transplanted to a nearby area that would remain unaffected by mining. Different treatments, including watering regimes, were applied but no significant differences were detected between any of these. All plants survived one year after transplanting and showed signs of vitality. Four years after transplanting 80% of plants were alive. The implications these findings have for the conservation and relocation of A. pechuelii are discussed.

South African Journal of Botany, 2013

Ecological Restoration, 2011

Beach hummocks are important ecological components of coastal ecosystems. Although hummocks are n... more Beach hummocks are important ecological components of coastal ecosystems. Although hummocks are naturally adapted to harsh conditions, reestablishing them in arid areas poses great challenges. During a collaborative project, research-ers from Namdeb Diamond ...

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