Did the flora match the fauna? Acocks and historical changes in Karoo biota

 

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dc.contributor.author Dean, W R J
dc.contributor.author Milton, S J
dc.date.accessioned 2017-02-20T06:07:49Z
dc.date.available 2017-02-20T06:07:49Z
dc.date.issued 2003
dc.identifier http://dx.doi.org/10.1016/S0254-6299(15)30361-6
dc.identifier.citation Dean, W. R. J., Milton, S. J., Hoffman, M. T., & Cowling, R. M. (2003). Did the flora match the fauna? Acocks and historical changes in Karoo biota. South African Journal of Botany, 69(1), 68-78.
dc.identifier.uri http://hdl.handle.net/11427/23974
dc.description.abstract Years of observation in Karoo veld convinced JP Acocks that the perennial grasses that he occasionally encountered in barren Karoo landscapes were remnants of pre-colonial vegetation. He maintained that desertification, caused by overgrazing and alteration of drainage systems, had destroyed key grazing resources, reducing the carrying capacity of the vegetation for large herbivores. We attempt to test this notion by reconstructing the fauna for sample areas of the Karoo from farm names, plant common names and travellers records, and by examining the flora of these areas for evidence of co-evolution with large herbivores. We concluded that names of mapped features and farms that refer to animals do reflect the historical distribution of these animals. However, within Karoo sampling units of approximately 500 km2, we could find no close relationship between historical records of large herbivores and herbivore-adapted defence and dispersal traits of plants. This weak evidence for co-evolution might have been because many of the large herbivores were not permanent residents in the Karoo. Alternatively it might be an artefact caused by lack of abundance data for plant guilds. There is evidence that post-colonial land use of the Karoo has changed vegetation structure and productivity within the areas we sampled.
dc.language.iso eng
dc.source South African Journal of Botany
dc.source.uri https://www.journals.elsevier.com/south-african-journal-of-botany/
dc.title Did the flora match the fauna? Acocks and historical changes in Karoo biota
dc.type Journal Article
dc.date.updated 2016-01-04T07:44:27Z
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Science en_ZA
dc.publisher.department Department of Biological Sciences en_ZA
uct.type.filetype Text
uct.type.filetype Image
dc.identifier.apacitation Dean, W. R. J., & Milton, S. J. (2003). Did the flora match the fauna? Acocks and historical changes in Karoo biota. <i>South African Journal of Botany</i>, http://hdl.handle.net/11427/23974 en_ZA
dc.identifier.chicagocitation Dean, W R J, and S J Milton "Did the flora match the fauna? Acocks and historical changes in Karoo biota." <i>South African Journal of Botany</i> (2003) http://hdl.handle.net/11427/23974 en_ZA
dc.identifier.vancouvercitation Dean WRJ, Milton SJ. Did the flora match the fauna? Acocks and historical changes in Karoo biota. South African Journal of Botany. 2003; http://hdl.handle.net/11427/23974. en_ZA
dc.identifier.ris TY - AU - Dean, W R J AU - Milton, S J AB - Years of observation in Karoo veld convinced JP Acocks that the perennial grasses that he occasionally encountered in barren Karoo landscapes were remnants of pre-colonial vegetation. He maintained that desertification, caused by overgrazing and alteration of drainage systems, had destroyed key grazing resources, reducing the carrying capacity of the vegetation for large herbivores. We attempt to test this notion by reconstructing the fauna for sample areas of the Karoo from farm names, plant common names and travellers records, and by examining the flora of these areas for evidence of co-evolution with large herbivores. We concluded that names of mapped features and farms that refer to animals do reflect the historical distribution of these animals. However, within Karoo sampling units of approximately 500 km2, we could find no close relationship between historical records of large herbivores and herbivore-adapted defence and dispersal traits of plants. This weak evidence for co-evolution might have been because many of the large herbivores were not permanent residents in the Karoo. Alternatively it might be an artefact caused by lack of abundance data for plant guilds. There is evidence that post-colonial land use of the Karoo has changed vegetation structure and productivity within the areas we sampled. DA - 2003 DB - OpenUCT DP - University of Cape Town J1 - South African Journal of Botany LK - https://open.uct.ac.za PB - University of Cape Town PY - 2003 T1 - Did the flora match the fauna? Acocks and historical changes in Karoo biota TI - Did the flora match the fauna? Acocks and historical changes in Karoo biota UR - http://hdl.handle.net/11427/23974 ER - en_ZA


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