Chrysocoma ciliata L. (Asteraceae) in the Lesotho Highlands: an anthropogenically introduced invasive or a niche coloniser?

Fitchett, Jennifer M.; Bamford, Marion K.; Mackay, Anson W.; Grab, Stefan

doi:10.1007/s10530-017-1478-1

Cited by 13 publications

(6 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These SCP concentrations are similar to those found in recent levels of a peat core (200 -350 gDM -1 ; unpublished data) taken from Sani Top (29°35'8.12"S; 29°15'56.68"E -Fig. 1; Fitchett et al, 2017) 140 km to the northeast of Letšeng-la Letsie For both cores, SCP flux records reinforce the concentration patterns and trends (Supp. Info.…”

Section: Trace Metals Scps and Stable Isotopes Of Nitrogensupporting

confidence: 86%

Natural archives of long-range transported contamination at the remote lake Letšeng-la Letsie, Maloti Mountains, Lesotho

Milner

Fitchett

Langerman

et al. 2020

Science of The Total Environment

Self Cite

View full text Add to dashboard Cite

Naturally accumulating archives, such as lake sediments and wetland peats, in remote areas may be used to identify the scale and rates of atmospherically deposited pollutant inputs to natural ecosystems. Co-located lake sediment and wetland cores were collected from Letšeng-la Letsie, a remote lake in the Maloti Mountains of southern Lesotho. The cores were radiometrically dated and continued coal combustion in South Africa through to the mid-21 st century.

show abstract

Section: Trace Metals Scps and Stable Isotopes Of Nitrogensupporting

confidence: 86%

Natural archives of long-range transported contamination at the remote lake Letšeng-la Letsie, Maloti Mountains, Lesotho

Milner

Fitchett

Langerman

et al. 2020

Science of The Total Environment

Self Cite

View full text Add to dashboard Cite

show abstract

“…This means that they are native to the landscape, but have expanded their range and/or population size. See Fitchett et al (2017). See chapter 6 for more on that history.…”

Section: Discussionmentioning

confidence: 99%

Placing Islam: Geographies of Connection in Twentieth-Century Istanbul

Hammond

2023

View full text Add to dashboard Cite

Luminos is the Open Access monograph publishing program from UC Press. Luminos provides a framework for preserving and reinvigorating monograph publishing for the future and increases the reach and visibility of important scholarly work. Titles published in the UC Press Luminos model are published with the same high standards for selection, peer review, production, and marketing as those in our traditional program. www.luminosoa.orgThe Fluvial Imagination CRITICAL ENVIRONMESERNTS: NATURE, SCIENCE, AND POLITICS Edited by Julie Guthman and Rebecca LaveThe Critical Environments series publishes books that explore the political forms of life and the ecologies that emerge from histories of capitalism, militarism, racism, colonialism, and more.Map 3. Map of the Union of South Africa circa 1975, showing the Bantustans. Note that not all Bantustans had been granted "independence" at that time. Dotted line shows the "conquered territories" of Lesotho. Cartography by Jon Caris and Tracy Tien, Spatial Analysis Lab at Smith College. Bantustan boundaries adapted by author from https://commons.wikimedia.org/w /index.php?curid=25392438 by Htonl. Conquered territories boundary digitized by author based on map in Lelimo (1998). Ocean bathymetry made with Natural Earth. All other administrative boundaries and city locations from ESRI Living Atlas. social activity: of imagination, of production, of reproduction. 40Above all, engineering storage requires regular reckoning with contradiction, namely the contradiction between storage and extraction. During apartheid, South Africa sought to store up workers it could tap at any moment. Industry then wanted laborers but not rights-bearing citizens. It needed them close, but wanted them far away. Industry today wants Lesotho's water, but without having to worry about the landscapes from which it issues. It demands minimal impact by livestock, but as I'll show it provides almost no long-term employment, leaving livestock production as one of the few options for rural people living in upstream catchments. South Africa's labor reserves required "upstream" mechanisms to manage their contradictions. 41 Some of these mechanisms were material in nature, while others were symbolic or social. Borders and passbooks, for example, helped regulate the flow of people, while ethnic or national identities helped to justify that regulation. The disciplining of kinship relations, too, for example by prohibiting spouses and children to accompany mineworkers, reinforced miners' status as "temporary sojourners" in white areas. 42 South Africa's water reserve requires similar upstream mechanisms. As during its labor-reserve era, the demands of storage and extraction in this reimagined apartheid infrastructure come into conflict. The contradictions generated by Lesotho's structural position as water reservoir must be managed. Over my sixteen months of ethnographic and ecological field research between 2011 and 2019, 43 I found that such management is in large part an exercise in theorizing environmental proce...

show abstract

“…The three most common pollen types identified at all studied wetland sites in eastern Lesotho are Cyperaceae, Poaceae and Asteraceae [35,[80][81][82] (Fig 6)-a suite of very broad cosmopolitan families that reflects the most dominant contemporary and Holocene plants [35,[81][82][83][84][85]. Cyperaceae (sedges) is a semi-aquatic plant family, indicative of wet marsh conditions [83,86].…”

Section: Proxy Interpretation: Pollenmentioning

confidence: 99%

Late glacial (17,060–13,400 cal yr BP) sedimentary and paleoenvironmental evolution of the Sekhokong Range (Drakensberg), southern Africa

et al. 2021

View full text Add to dashboard Cite

Southern Africa sits at the junction of tropical and temperate systems, leading to the formation of seasonal precipitation zones. Understanding late Quaternary paleoclimatic change in this vulnerable region is hampered by a lack of available, reliably-dated records. Here we present a sequence from a well-stratified sedimentary infill occupying a lower slope basin which covers 17,060 to 13,400 cal yr BP with the aim to reconstruct paleoclimatic variability in the high Drakensberg during the Late Glacial. We use a combination of pollen, total organic carbon and nitrogen, δ13C, Fourier transform infrared spectroscopy attenuated total reflectance (FTIR-ATR) spectral and elemental data on contiguous samples with high temporal resolution (10 to 80 years per sample). Our data support a relatively humid environment with considerable cold season precipitation during what might have been the final stage of niche-glaciation on the adjoining southern aspects around 17,000 cal yr BP. Then, after an initial warmer and drier period starting ~15,600 cal yr BP, we identify a return to colder and drier conditions with more winter precipitation starting ~14,380 cal yr BP, which represents the first local evidence for the Antarctic Cold Reversal (ACR) in this region. On decadal to centennial timescales, the Late Glacial period was one marked by considerable climatic fluctuation and bi-directional environmental change, which has not been identified in previous studies for this region. Our study shows complex changes in both moisture and thermal conditions providing a more nuanced picture of the Late Glacial for the high Drakensburg.

show abstract

Chrysocoma ciliata L. (Asteraceae) in the Lesotho Highlands: an anthropogenically introduced invasive or a niche coloniser?

Cited by 13 publications

References 64 publications

Natural archives of long-range transported contamination at the remote lake Letšeng-la Letsie, Maloti Mountains, Lesotho

Natural archives of long-range transported contamination at the remote lake Letšeng-la Letsie, Maloti Mountains, Lesotho

Placing Islam: Geographies of Connection in Twentieth-Century Istanbul

Late glacial (17,060–13,400 cal yr BP) sedimentary and paleoenvironmental evolution of the Sekhokong Range (Drakensberg), southern Africa

Contact Info

Product

Resources

About