DOCSLIB.ORG

Elvis Mubamu Makady

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Elvis Mubamu Makady Large herbivore stocking rate effects on plant palatability, forage preference and soil properties in an Alluvium Fynbos-Renosterveld mosaic By Elvis Mubamu Makady Thesis presented in partial fulfilment of the requirements for the degree of Master of Science in conservation ecology at Stellenbosch University Department of Conservation Ecology and Entomology Faculty of AgriSciences Supervisor: Dr. Cornelia B. Krug Co-supervisor: Professor Karen. J. Esler Date: March 2009 DECLARATION By submitting this thesis electronically, I declare that the entirety of the work contained therein is my own, original work, that I am the owner of the copyright thereof (unless to the extent explicitly otherwise stated) and that I have not previously in its entirety or in part submitted it for obtaining any qualification. Signature:…………………….. Date: 03 March 2009 Copyright © 2009 Stellenbosch University All rights reserved II ABSTRACT An understanding of the interactions of herbivores, plant nutrients and soil properties is crucial for grazing management. Of particular interest are plant palatability and herbivore grazing preferences. These aspects, the focus of this thesis, were studied in a Swartland Shale Renosterveld and Swartland Alluvium Fynbos mosaic in the Western Cape of South Africa. This vegetation is classified as critically endangered due to the transformation of its landscape in favour of agricultural production and urban settlement. Pre-colonial herbivore vertebrates were hunted out by 1700, leading to a sparse knowledge of the early dynamics of the vegetation. However, currently game farmers and landowners are re-introducing selected species into the area. Thus, managers require knowledge on how to implement practical guidelines for best-practice grazing management. This study investigates, firstly, the relationship between plants and animals. This included seasonal assessment of seed germination from dung of bontebok and eland; the effect of stocking rates on plant palatability (crude protein, crude fibre, crude fat, moisture, tannin and mineral) of herbage was studied with the aim to understand how palatability influences herbivore forage decisions. Secondly, this study looked at how stocking rates influence soil nutrients (nitrogen, phosphorus), and others soil properties such as pH and soil moisture. The distribution of alien grasses was facilitated by grazers. About 58 % of grasses germinated from the dung of eland and Bontebok were alien species. Additionally, there was significant variation in palatability related to grazing pressure and plant maturity between sites and over seasons. Grasses on the high grazing site had higher carbohydrate (3%-5% higher) and protein content (1%-5% higher) than at the least grazed site. Mature grasses contained less water (10%-20%), but no obvious variation in tannin concentration than immature grasses. However, species such as Ficinia sp. showed variations with grazing pressure and maturity. Ficinia sp. on the high grazing site had higher tannin concentration (5mg/ml-22mg/ml) and crude protein (4%-9%) than at the least grazed site. When the plant ages, tannin concentration increase (ranging from 15% to19% higher). Two types of plant were recoreded according to their chemical response following grazing pressure. These types are 1) plants that are grazing tolerant and which produce more carbohydrate when grazed and 2) plants that are grazing intolerant under high grazing pressure and which produce chemical defence compounds such as tannin to deter herbivores attacks. The results indicate that in fynbos and renosterveld, the relationship between preference and plant chemical compounds is not consistent since no III patterns emerged to explain what compounds drive preference. A combination of chemical compounds may be the reason for the selection by the grazers; alternatively, other compounds not included in the study may influence the forage selection by an herbivore. The second part of the study showed that stocking rates appeared to have a significant effect on soil properties investigated. Soil moisture was significantly affected by the stocking rate in autumn. The high grazing intensity site had the lowest soil moisture especially in autumn (10% lower than the control site), likely due to heavy trampling and soil compaction. pH was the lowest at the high grazing intensity site in all seasons compared to the control site. Likely reasons were the high deposition of nitrogen through dung and urine deposition, high removal of basic cations and animal exportation through hunting activities. Lastly, grazing maintains inorganic nitrogen at stable levels regardless of seasonal changes and increases the concentration of phosphorus especially under high grazing pressure compare to less grazed sites. The grazing dynamics of Swartland Shale Renosterveld - Swartland Alluvium Fynbos mosaic system are complex and multifaceted. Farmers need to pay attention to the nutritional status of plant species grazed to know whether they meet the nutritional requirements of the game in the area. Overstocking should be avoided in this system as it triggers the production of tanniferous compounds that could decrease the survivorship of herbivores. Moderate grazing 0.09 LAU/ha pressure provides the best stocking rates for effective grazing management. IV OPSOMMING Vir suksesvolle weidingsbestuur is dit noodsaaklik om die interaksie tussen herbivore, plantvoedingstowwe en grondeienskappe te verstaan. Van besondere belang is plantsmaaklikheid en herbivore se weidingsvoorkeure. Hierdie aspekte, wat die fokus van hierdie tesis is, is bestudeer in ‘n Swartland Shale Renosterveld en Swartland Alluvium Fynbos-mosaïek in die Wes-Kaap Provinsie van Suid-Afrika. Hierdie plantegroei word as kritiek bedreigd geklassifiseer weens die transformering van sy landskap ten gunste van landbou-aktiwiteite en stedelike vestiging. Pre-koloniale herbivoor vertebrata is teen 1700 deur jagters uitgeroei, wat gelei het tot min kennis oor die vroeë dinamiek van die plantegroei. Wildsboere en grondeienaars is egter besig om geselekteerde spesies in die area te hervestig. Bestuurders moet dus weet hoe om praktiese riglyne vir beste-praktyk weidingsbestuur te implementeer. Hierdie studie ondersoek eerstens die verhouding tussen plante en diere. Dit sluit seisoenale evaluering van saadontkieming uit die mis van bontebokke en elande in; die effek van veegetalle op plantsmaaklikheid (ruproteïen, ruvesel, ru-vet, vogpeil, tannien en minerale) van die weiveld is bestudeer om vas te stel hoe plantsmaaklikheid herbivore se weidingsbesluite beïnvloed. Tweedens het die studie die invloed van veegetalle op grondvoedingstowwe (stikstof, fosfor) ondersoek, asook ander grondeienskappe soos pH en grondvogpeile. Die verspreiding van uitheemse grasse is deur weidende diere gefassiliteer. Ongeveer 58% van alle grasse wat uit die mis van elande en bontebokke ontkiem het, was uitheemse spesies. Verder was daar beduidende variasie in plantsmaaklikheid verwant aan beweidingsdruk en plantvolwassenheid tussen verskillende persele en oor seisoene. Grasse op die hoogs beweide persele het 3%-5% hoër koolhidraatinhoude en 1%-5% hoër proteïeninhoude gehad as die minder beweide persele. Volwasse grasse het 10%-20% minder water bevat as onvolwasse grasse, maar het nie in terme van tannienkonsentrasie van die onvolwasse grasse verskil nie. Spesies soos Ficinia sp. het variasies getoon met beweidingsdruk en volwassenheid. Ficinia sp. het op die hoog-beweide perseel ‘n hoër tannienkonsentrasie (5mg/ml-22mg/ml) en meer ruproteïen (4%-9%) gehad as op die minste beweide perseel. Wanneer die plant verouder, verhoog die toename in tannienkonsentrasie (met tussen 15% en 19%). Twee tipes plante is aangeteken volgens hul chemiese response ná beweidingsdruk. Hierdie tipes is 1) plante wat beweidingstolerant is en wat meer koolhidrate produseer wanneer hulle as weiding dien en 2) plante wat onder hoë beweidingsdruk beweidingsintolerant is en wat chemiese verbindings V soos tannien produseer om herbivooraanvalle af te weer. Die resultate dui aan dat die verhouding tussen voorkeur en plante se chemiese verbindings nie konstant bly in fynbos en renosterveld nie, aangesien geen patrone na vore getree het wat kon verklaar watter verbindings bepalend is vir voorkeur nie. ‘n Kombinasie van chemiese verbindings mag die rede wees waarom die herbivore sekere plante verkies; alternatiewelik mag ‘n herbivoor se plantseleksie beïnvloed word deur chemiese verbindings anders as dié wat in hierdie studie ondersoek is. Die tweede deel van die studie het aangetoon dat veegetalle blyk ‘n beduidende invloed te hê op die grondeienskappe wat ondersoek is. Grondvogpeile is in die herfs beduidend beïnvloed deur die veegetalle. Die perseel met die hoë beweidingsintensiteit het die laagste grondvogpeil gehad, veral in die winter (10% laer as dié van die kontrole-perseel), waarskynlik weens erge getrappel en grondkompaktering. Vergeleke met die kontrole-perseel was pH die laagste op die perseel met die hoë beweidingsintensiteit, in alle seisoene. Waarskynlike redes hiervoor is die hoë neeerslag van stikstof deur mis- en uriene-neerslae, hoë verwydering van basiese katione en dierevervoer wat deur jagaktiwiteite teweeg gebring word. Laatstens behou weiding anorganiese stikstof teen stabiele vlakke ongeag van seisoenale veranderinge en toenames in die konsentrasie van fosfor, veral onder hoë beweidingsdruk vergeleke met minder beweide persele. Die weidingsdinamiek van die Swartland Shale Renosterveld - Swartland
Load more

Recommended publications
  • Reduced Visitation to the Buzz-Pollinated Cyanella Hyacinthoides In
    bioRxiv preprint doi: https://doi.org/10.1101/2021.04.17.440253; this version posted April 19, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY 4.0 International license. 1 Reduced visitation to the buzz-pollinated Cyanella hyacinthoides in 2 the presence of other pollen sources in the hyperdiverse Cape 3 Floristic Region 4 5 Jurene E. Kemp1 6 Francismeire J. Telles2 7 Mario Vallejo-Marin1 8 1Biological and Environmental Sciences. University of Stirling, Stirling FK9 4LA. United Kingdom 9 2Programa de Pós-Graduação em Ecologia e Conservação de Recursos Naturais, Universidade 10 Federal de Uberlândia, Campus Umuarama, Bloco 2D, Sala 26, Uberlândia, MG, Brazil. 11 Abstract 12 Many plant species have floral morphologies that restrict access to floral resources, such as pollen or 13 nectar, and only a subset of floral visitors can perform the complex handling behaviours required to 14 extract restricted resources. Due to the time and energy required to extract resources from 15 morphologically complex flowers, these plant species potentially compete for pollinators with co- 16 flowering plants that have more easily accessible resources. A widespread floral mechanism 17 restricting access to pollen is the presence of tubular anthers that open through small pores or slits 18 (poricidal anthers). Some bees have evolved the capacity to remove pollen from poricidal anthers 19 using vibrations, giving rise to the phenomenon of buzz-pollination. These bee vibrations that are 20 produced for pollen extraction are presumably energetically costly, and to date, few studies have 21 investigated whether buzz-pollinated flowers may be at a disadvantage when competing for 22 pollinators’ attention with plant species that present unrestricted pollen resources.
    [Show full text]
  • Biodiversity and Ecology of Critically Endangered, Rûens Silcrete Renosterveld in the Buffeljagsrivier Area, Swellendam
    Biodiversity and Ecology of Critically Endangered, Rûens Silcrete Renosterveld in the Buffeljagsrivier area, Swellendam by Johannes Philippus Groenewald Thesis presented in fulfilment of the requirements for the degree of Masters in Science in Conservation Ecology in the Faculty of AgriSciences at Stellenbosch University Supervisor: Prof. Michael J. Samways Co-supervisor: Dr. Ruan Veldtman December 2014 Stellenbosch University http://scholar.sun.ac.za Declaration I hereby declare that the work contained in this thesis, for the degree of Master of Science in Conservation Ecology, is my own work that have not been previously published in full or in part at any other University. All work that are not my own, are acknowledge in the thesis. ___________________ Date: ____________ Groenewald J.P. Copyright © 2014 Stellenbosch University All rights reserved ii Stellenbosch University http://scholar.sun.ac.za Acknowledgements Firstly I want to thank my supervisor Prof. M. J. Samways for his guidance and patience through the years and my co-supervisor Dr. R. Veldtman for his help the past few years. This project would not have been possible without the help of Prof. H. Geertsema, who helped me with the identification of the Lepidoptera and other insect caught in the study area. Also want to thank Dr. K. Oberlander for the help with the identification of the Oxalis species found in the study area and Flora Cameron from CREW with the identification of some of the special plants growing in the area. I further express my gratitude to Dr. Odette Curtis from the Overberg Renosterveld Project, who helped with the identification of the rare species found in the study area as well as information about grazing and burning of Renosterveld.
    [Show full text]
  • Environmental Impact Assessment for the Establishment of the Wolseley Wind Farm, Western Cape Province
    ENVIRONMENTAL IMPACT ASSESSMENT FOR THE ESTABLISHMENT OF THE WOLSELEY WIND FARM, WESTERN CAPE PROVINCE ENVIRONMENTAL IMPACT REPORT FAUNA & FLORA SPECIALIST STUDY PRODUCED FOR ARCUS GIBB ON BEHALF OF SAGIT ENERGY VENTURES BY SIMON TODD [email protected] NOVEMBER 2012 FINAL DRAFT FOR REVIEW DECLARATION OF INDEPENDENCE I, Simon Todd as duly authorised representative of Simon Todd Consulting, hereby confirm my independence as well as that of Simon Todd Consulting as the ecological specialist for the Langhoogte/Wolseley Wind Farm and declare that neither I nor Simon Todd Consulting have any interest, be it business, financial, personal or other, in any proposed activity, application or appeal in respect of which Arcus GIBB was appointed as environmental assessment practitioner in terms of the National Environmental Management Act, 1998 (Act No. 107 of 1998), other than fair remuneration for work performed in terms of the NEMA, the Environmental Impact Assessment Regulations, 2010 and any specific environmental management Act) for the Langhoogte/Wolseley Wind Farm I further declare that I am confident in the results of the studies undertaken and conclusions drawn as a result of it. I have disclosed, to the environmental assessment practitioner, in writing, any material information that have or may have the potential to influence the decision of the competent authority or the objectivity of any report, plan or document required in terms of the NEMA, the Environmental Impact Assessment Regulations, 2010 and any specific environmental management Act. I have further provided the environmental assessment practitioner with written access to all information at my disposal regarding the application, whether such information is favourable to the applicant or not.
    [Show full text]
  • Stable Carbon Isotopic Assessment of Prehistoric Diets in the South-Western Cape, South Africa
    STABLE CARBON ISOTOPIC ASSESSMENT OF PREHISTORIC DIETS IN THE SOUTH-WESTERN CAPE, SOUTH AFRICA Thesis presented to the Department of Archaeology University of Cape Town in fulfilment of the requirements for the degree of Master of Science University of Cape Town by J.C. Sealy March 1984 The copyright of this thesis vests in the author. No quotation from it or information derived from it is to be published without full acknowledgement of the source. The thesis is to be used for private study or non- commercial research purposes only. Published by the University of Cape Town (UCT) in terms of the non-exclusive license granted to UCT by the author. University of Cape Town ( i) ABSTRACT This thesis consists of a stable carbon isotopic assessment of the diets of the Holocene human inhabitants of the south­ western Cape, South Africa. Samples of the foods these people ate were collected from each of the four major physiographic zones in the area, and their 13 C/ 12C ratios measured. A total of more than 200 such analyses enabled the estimation of the average 613 C values of prehistoric human diets in each zone. This information is used to interpret o13 C measurements on a series of archaeological human skeletons. The results are consistent with a model of prehistoric subsistence behaviour in which people living at the coast made intensive use of marine food resources throughout the Holocene, consuming such a large proportion of these foods that they must have spent much, if not all of their time at the coast. Inland skeletons reflect an almost entirely terrestrial diet.
    [Show full text]
  • Effect of Fire on Flowering of Hyparrhenia Hirta (L.) Stapf (C4)
    Vol. 8(14), pp. 1225-1228, 18 April, 2013 DOI: 10.5897/AJAR2013.7033 African Journal of Agricultural ISSN 1991-637X ©2013 Academic Journals Research http://www.academicjournals.org/AJAR Full Length Research Paper Effect of fire on flowering of Hyparrhenia hirta (L.) Stapf (C4), Merxmuellera disticha (Nees) Conert (C3) and Themeda triandra Forsskal (C4) on the Signal Hill, Cape Town, South Africa M. H. Ligavha-Mbelengwa and R. B. Bhat* Department of Botany, University of Venda, Thohoyandou, Limpopo 0950, South Africa. Accepted 18 March, 2013 Flowering in Merxmuellera disticha was more strongly stimulated by fire in summer. Flowering tillers produced between 9 and 11 months after fire were significantly more abundant than those produced 21 to 24 months thereafter. Growth in terms of size of individuals was considered insignificant for analysis. Neighbored Hyparrhenia hirta showed, to a certain degree, an out-of-season growth, production and reproduction, whilst M. disticha and Themeda triandra on the same plots did not. The xylem water potential of H. hirta [-10.9(±0.29)], M. disticha [-14.6(±0.80)] and T. triandra [-13.8(±0.29)] on one stand differed significantly from one another (p < 0.0001), and that of H. hirta [-19.7(±0.81] and M. disticha [-34.5(±1.26)] on the other stand also differed significantly from each other (p < 0.0001). One way analysis of variance (ANOVA) thereof produced the following (F-ratio = 13.893; degrees of freedom = 29, p < 0.0001), and for H. hirta versus M. disticha, (F-ratio = 97.605; degrees of freedom = 23, p < 0.0001).
    [Show full text]
  • A Checklist of Lesotho Grasses
    Guidelines for Using the Checklist The genera and species are arranged in alphabetical order. Accepted genus and species names are in bold print, for example, Agrostis barbuligera. Synonyms are in italics, for example, Agrostis natalensis. Not all synonyms for a species are listed. Naturalised taxa are preceded by an asterisk, for example, Pennisetum *clandestinum. These are species that were intro- duced from outside Lesotho but now occur in the wild as part of the natural flora. Single letters after the species names, on the right-hand side of the column, indicate the distribution of species within Lesotho as reflected by the ROML and MASE collections. This indicates that a species has definitely been recorded in Lesotho. L—Lowlands F—Foothills M—Mountains S—Senqu Valley Double letters after species names, on the right-hand side of the column, indicate the distribution of species along the border with South Africa as reflected in the literature. This indicates that a species could occur in Lesotho, but has not yet been recorded. KN—KwaZulu-Natal FS—Free State EC—Eastern Cape Literature references are abbreviated as follows: G—Gibbs Russell et al. (1990) J—Jacot Guillarmod (1971) SCH—Schmitz (1984) V—Van Oudtshoorn (1999) For example, G:103 refers to page 103 in the Gibbs Russell et al. (1990) publication, Grasses of southern Africa. The seven-digit number to the right of the genus names is the numbering system followed at Kew Herbarium (K) and used in Arnold & De Wet (1993) and Leistner (2000). N M F L M Free State S Kwa-Zulu Natal Key L Lowlands Zone Maize (Mabalane) F Foothills Zone Sorghum M Mountain Zone Wheat (Maloti) S Senqu Valley Zone Peas Cattle Beans Scale 1 : 1 500 000 Sheep and goats 20 40 60 km Eastern Cape Zones of Lesotho based on agricultural practices.
    [Show full text]
  • Conservation Value of the Egoli Granite Grassland, an Endemic Grass- Land in Gauteng, South Africa
    Conservation value of the Egoli Granite Grassland, an endemic grass- land in Gauteng, South Africa G.J. BREDENKAMP, L.R. BROWN and M.F. PFAB Bredenkamp, G.J., L.R. Brown and M.F. Pfab. 2006. Conservation value of the Egoli Granite Grassland, an endemic grassland in Gauteng, South Africa. Koedoe 49(2): 59–66. Pretoria. ISSN 0075-6458. Gauteng is the most densely populated province in South Africa. Its remaining natural areas are constantly under threat from urban development and the associated impacts. Presently, the natural areas of Gauteng support a large diversity of ecosystems. One such ecosystem is the Egoli Granite Grassland, endemic to the province, poorly conserved and therefore highly threatened. This paper describes the original Egoli Granite Grassland and the anthropogenic Hyparrhenia hirta dominated grassland that has replaced it in many of the remnant areas. Human impacts on this sensitive ecosystem have resulted in an altered species composition, loss of many species, and a change from a species-rich grassland with high conservation value to a species-poor grassland with low conser- vation value. The conservation of the last remaining relicts of original Egoli Granite Grassland is essential. Keywords: Egoli Granite Grassland; conservation value; Hyparrhenia hirta, Gauteng. G.J. Bredenkamp, African Vegetation and Plant Diversity Research Centre, University of Pretoria; L.R. Brown, Applied Behavioural Ecology and Ecosystem Research Unit, University of South Africa; M.F. Pfab, Bioregional Planning, Gauteng Department of Agriculture,
    [Show full text]
  • Renosterveld Restoration: the Role of Competition, Herbivory and Other Disturbances
    Renosterveld Restoration: The role of competition, herbivory and other disturbances By Donald Midoko-Iponga Thesis presented in partial fulfilment of the requirements for the degree of Master of Science at University of Stellenbosch. Supervisor: Professor Suzanne.J. Milton Co-supervisor: Dr. Cornelia B. Krug December 2004 Declaration I, the undersigned, hereby declare that the work contained in this thesis is my own original work and that I have not previously in its entirety or in part submitted it at any University for a degree. Signature………………. Date……………… i Abstract West Coast Renosterveld is one of the most threatened vegetation types in South Africa. Less than 5% of the original extent of this vegetation type remains, of which 80% is on private land. In addition to fragmentation, much of the vegetation has been ploughed for crop production and then abandoned and invaded by alien plants. Restoration of transformed areas may improve the conservation status of this vegetation type. Indigenous species do not return to abandoned agricultural fields for decades even if these are adjacent to natural areas since their return is limited either by seed dispersal or seedling establishment. The aim of this study was to examine the recovery of indigenous vegetation on abandoned fields. Renosterveld, as we know it today, is an asteraceous shrubland, dominated mainly by renosterbos (Eytropappus rhinocerotis), but might have been a grassland or a grassland-shrubland mosaic. Historical records indicate that species of large game were common in the Western Cape when the early settlers arrived, but most of these have since disappeared. It is thus impossible to reconstruct exactly the ecological processes and functioning of Renosterveld.
    [Show full text]
  • The Naturalized Vascular Plants of Western Australia 1
    12 Plant Protection Quarterly Vol.19(1) 2004 Distribution in IBRA Regions Western Australia is divided into 26 The naturalized vascular plants of Western Australia natural regions (Figure 1) that are used for 1: Checklist, environmental weeds and distribution in bioregional planning. Weeds are unevenly distributed in these regions, generally IBRA regions those with the greatest amount of land disturbance and population have the high- Greg Keighery and Vanda Longman, Department of Conservation and Land est number of weeds (Table 4). For exam- Management, WA Wildlife Research Centre, PO Box 51, Wanneroo, Western ple in the tropical Kimberley, VB, which Australia 6946, Australia. contains the Ord irrigation area, the major cropping area, has the greatest number of weeds. However, the ‘weediest regions’ are the Swan Coastal Plain (801) and the Abstract naturalized, but are no longer considered adjacent Jarrah Forest (705) which contain There are 1233 naturalized vascular plant naturalized and those taxa recorded as the capital Perth, several other large towns taxa recorded for Western Australia, com- garden escapes. and most of the intensive horticulture of posed of 12 Ferns, 15 Gymnosperms, 345 A second paper will rank the impor- the State. Monocotyledons and 861 Dicotyledons. tance of environmental weeds in each Most of the desert has low numbers of Of these, 677 taxa (55%) are environmen- IBRA region. weeds, ranging from five recorded for the tal weeds, recorded from natural bush- Gibson Desert to 135 for the Carnarvon land areas. Another 94 taxa are listed as Results (containing the horticultural centre of semi-naturalized garden escapes. Most Total naturalized flora Carnarvon).
    [Show full text]
  • A Checklist of the Flowering Plants and Ferns of Swartboschkloof, Jonkershoek, Cape Province
    Bothalia 18,2: 261-270 (1988) A checklist of the flowering plants and ferns of Swartboschkloof, Jonkershoek, Cape Province D.J. McDONALD* and M. MORLEY* Keywords: checklist, ferns, flowering plants, Swartboschkloof ABSTRACT A list of Dowering plants and ferns of Swartboschkloof is presented. This list represents a combination of species recorded in Van der Merwe (1966), Werger, Kruger & Taylor (1972), McDonald (1983, 1985) and specimens collected from Swartboschkloof housed in the Government Herbarium, Stellenbosch (STE) and the Wicht Herba­ rium, Jonkershoek (JI ). The checklist is analysed and the flora of Swartboschkloof compared with the respective floras of Cape Hangklip and Cape Point (sensu Taylor 1985). UITTREKSEL ’n Lysvan blomplante en varings van Swartboschkloof word verskaf. Hierdie lys verteenwoordig ’n kombinasie van spesies aangeteken in Van der Merwe (1966), Werger, Kruger & Taylor (1972), McDonald (1983, 1985) en eksemplare wat in Swartboschkloof versamel is en in die Staatsherbaiium, Stellenbosch (STE) en die W'icht- herbarium, Jonkershoek (JF) gehuisves word. Die kontrolelys word ontleed en die flora van Swartboschkloof word met die onderskeie floras van Kaap Hangklip en Kaappunt (sensu Taylor 1985) vergelyk. INTRODUCTION made of species names with their respective collectors’ names and numbers for future inclusion in a master list. Checklists, although cumbersome to publish, have proved valuable to workers involved in vegetation research The checklist presented here is based 1, on the collec­ as well as to phytogeographers in their attempts to deter­ tions made by the senior author; 2, on collections made by mine the relationships within and between different Van der Merwe (1966); 3, on species contained in the floras (Kruger & Taylor 1979; Taylor 1979).
    [Show full text]
  • Vegetation Patterns and Dynamics of Renosterveld at Agter-Groeneberg Conservancy, Western Cape, South Africa
    Vegetation Patterns and Dynamics of Renosterveld at Agter-Groeneberg Conservancy, Western Cape, South Africa By Benjamin Alan Walton Thesis presented in partial fulfillment of the requirements for the degree of Master of Science at the Stellenbosch University Supervisor Professor Sue J Milton (Department of Conservation Ecology) Co-supervisors A le Roux (CapeNature) Professor L Mucina (Department of Botany and Zoology) April 2006 i Φ Poem “Colour awash over forelands of fertile clay” “When the winters’ cold and grim the Oxalis’s start to brim - they open up. The first feast for bees, in the shrubland short of trees not breeze. Sun’s rays soon last longer in the days: Babianas, Chlorophytums, Geissorhizas, Gladiolius’s, Hesperanthas, Lachenalias, Moraeas and Trachyandras spread their cheerful gaze. Accompanied by annual daisies and bright gladioli filling the air with strong scents of honey - monkey beetles waste no time as they perch upon delicate flowers, lest they are caught in the season’s showers. As if to suggest this is the best nature sends small midge flies to pollinate in jest, and surround mammals to tease their bloody channels. Another month has come and gone - not long now for the raaptol and Micranthus which provide nectar for brown butterflies and painted ladies. Then is the last sequence of bulbs - the fine white-filled fields of chinkerinchees. Grasses’ hour is now soaking up the sun displaying beautifully crafted silhouettes till summers end. As if heaven sent delicate geophytes are still producing their charm, when botanists avoid the midday sun. A brief lapse in displays until the autumn reds begin the seasonal cycles.” Figure a: From left to right: Moraea villosa (Ker Gawl.) Ker Gawl.
    [Show full text]
  • Phylogenetic Relationships of Monocots Based on the Highly Informative Plastid Gene Ndhf Thomas J
    Aliso: A Journal of Systematic and Evolutionary Botany Volume 22 | Issue 1 Article 4 2006 Phylogenetic Relationships of Monocots Based on the Highly Informative Plastid Gene ndhF Thomas J. Givnish University of Wisconsin-Madison J. Chris Pires University of Wisconsin-Madison; University of Missouri Sean W. Graham University of British Columbia Marc A. McPherson University of Alberta; Duke University Linda M. Prince Rancho Santa Ana Botanic Gardens See next page for additional authors Follow this and additional works at: http://scholarship.claremont.edu/aliso Part of the Botany Commons Recommended Citation Givnish, Thomas J.; Pires, J. Chris; Graham, Sean W.; McPherson, Marc A.; Prince, Linda M.; Patterson, Thomas B.; Rai, Hardeep S.; Roalson, Eric H.; Evans, Timothy M.; Hahn, William J.; Millam, Kendra C.; Meerow, Alan W.; Molvray, Mia; Kores, Paul J.; O'Brien, Heath W.; Hall, Jocelyn C.; Kress, W. John; and Sytsma, Kenneth J. (2006) "Phylogenetic Relationships of Monocots Based on the Highly Informative Plastid Gene ndhF," Aliso: A Journal of Systematic and Evolutionary Botany: Vol. 22: Iss. 1, Article 4. Available at: http://scholarship.claremont.edu/aliso/vol22/iss1/4 Phylogenetic Relationships of Monocots Based on the Highly Informative Plastid Gene ndhF Authors Thomas J. Givnish, J. Chris Pires, Sean W. Graham, Marc A. McPherson, Linda M. Prince, Thomas B. Patterson, Hardeep S. Rai, Eric H. Roalson, Timothy M. Evans, William J. Hahn, Kendra C. Millam, Alan W. Meerow, Mia Molvray, Paul J. Kores, Heath W. O'Brien, Jocelyn C. Hall, W. John Kress, and Kenneth J. Sytsma This article is available in Aliso: A Journal of Systematic and Evolutionary Botany: http://scholarship.claremont.edu/aliso/vol22/iss1/ 4 Aliso 22, pp.
    [Show full text]