Browsing by Author "Murray-Hudson, M."
Now showing items 1-12 of 12
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Aquatic ecosystem responses to fire and flood size in the Okavango Delta: observations from the seasonal floodplains
Ramberg, L.; Lindholm, M.; Hessen, D.O.; Murray-Hudson, M.; Bonyongo, C.; Heinl, M.; Masamba, W.; Vanderpost, C.; Wolski, P. (Springer, http://www.springer.com, 2010-07-19)The frequency of fires in the Okavango Delta seasonal floodplains peaked at an intermediate frequency of flooding. Floodplains are commonly burnt every 3–5 years. This study showed fundamental changes in ecosystem properties ... -
Biomass production and economic value of Phragmites australis Reedbeds in the Southern Okavango Delta, Botswana
Murray-Hudson, M.; Mmopelwa, G. (Global Science Books, http://www.globalsciencebooks.info/, 2011)Most work globally on Phragmites spp. has been done in temperate northern hemisphere localities, where winter low temperatures and short day lengths cause a seasonal decrease in growth. In this study, we report above-ground ... -
Environmental factors that influence species diversity of floodplain plant communities in different flooding phases in the Okavango delta, Botswana
Bonyongo, M.; Murray-Hudson, M.; Tsheboeng, G. (South African National Biodiversity Institute (SANBI), https://www.sanbi.org/, 2020-05-01)Species composition and distribution in seasonal floodplain plant communities are influenced by variation in flooding. However, the influence of intra-flooding variation phases on the diversity of seasonal floodplain ... -
Flooding dynamics in a large low-gradient alluvial fan, the Okavango delta, Botswana, from analysis and interpretation of 30-year hydrometric record
Wolski, P.; Murray-Hudson, M. (Hydrology and Earth Systems Sciences, www.hydrology-and-earth-system-sciences.net, 2006)The Okavango Delta is a flood-pulsed wetland, which supports a large tourism industry and the subsistence of the local population through the provision of ecosystem services. In order to obtain insight into the influence ... -
Highly contrasted geochemical pattern in sediments of the Okavango Delta, Botswana driven by dust supply, hydrological heritage and biogeochemical reactions
Jolivet, M.; Dauteuil, O.; Dia, A.; Davranche, M.; Pierson-Wikmann, A.C.; Barrier, L.; Murray-Hudson, M.; Mazrui, N.; Marsac, R.; Cheng, F.; Li, X. (Advancing Earth and Space Science, https://www.agu.org, 2023)The Okavango Delta in North Botswana is a hot-spot of biodiversity within the semi-arid central part of the South African plateau. This endorheic ecosystem is highly dependent on the annual flood that brings freshwater ... -
Indicators of desiccation-driven change in the distal Okavango Delta, Botswana
Ringrose, S.; Vanderpost, C.; Matheson, W.; Wolski, P.; Huntsman-Mapila, P.; Murray-Hudson, M.; Jellema, A. (Elsevier Ltd; www.elsevier.com/locate/jaridenv, 2007-01)This work seeks to determine whether riparian woody plant variables respond to drying and salinity regimes in the semi-arid distal Okavango Delta, northern Botswana. Structural and compositional variables were obtained ... -
Macrophyte species distribution, indices of biotic integrity, and sampling intensity in isolated Florida marshes
Murray-Hudson, M.; Lane, C.R.; North, S.; Brown, M.T. (Springer Link, https://link.springer.com, 2012)This study examined the distribution of wetland plants used in macrophyte-based index of biotic integrity (IBI) metrics to determine the effectiveness of zone sampling in assessing wetland condition. Using sampling data ... -
Methane flux measurements along a floodplain soil moisture gradient in the Okavango Delta, Botswana
Gondwe, M.J.; Hefter, C.; Murray-Hudson, M.; Levy, P.E.; Mosimanyana, E.; Makati, A.; Mfundisi, K.B.; Skiba, U.M. (The Royal Society, https://royalsociety.org/, 2021-09-21)Data-poor tropical wetlands constitute an important source of atmospheric CH4 in the world. We studied CH4 fluxes using closed chambers along a soil moisture gradient in a tropical seasonal swamp in the Okavango Delta, ... -
Remote sensing-derived hydroperiod as a predictor of floodplain vegetation composition
Murray-Hudson, M.; Wolski, P.; Cassidy, L.; Brown, M.T.; Thito, K.; Kashe, K.; Mosimanyana, E. (Springer Link; https://link.springer.com, 2014-02-13)Characterising hydroperiod and vegetation for flood-pulsed wetlands is a critical first step towards understanding their ecology. In large, data-poor wetlands such as Botswana’s Okavango Delta, quantifying hydrology and ... -
Scenarios of the impact of local and upstream changes in climate and water use on hydro-ecology in the Okavango Delta, Botswana
Murray-Hudson, M.; Wolski, P.; Ringrose, S. (Elservier, www.elsevier.com, 2006)Changes in hydrological inputs to the flood-pulsed Okavango Delta result in changes in such flooding characteristics as floodplain water depth, inundation duration and frequency. A mathematical model is used to assess ... -
Simulation of DOM fluxes in a seasonal floodplain of the Okavango Delta, Botswana
Mladenov, N.; McKnight, D.M.; Wolski, P.; Murray-Hudson, M. (Elsevier, www.elsevier.com/locate/ecolmodel, 2007)In order to examine dissolved organic matter (DOM) fluxes in seasonal wetland systems that expand and contract seasonally, a time-variable model of dissolved organic carbon (DOC) was developed for a seasonal floodplain ... -
A vegetation-based hierarchical classification for seasonally pulsed floodplains in the Okavango Delta, Botswana
Murray-Hudson, M.; Combs, F.; Wolski, P.; Brown, M.T. (Taylor & Francis, http://taylorandfrancis.com, 2011-12-11)A classification scheme is presented for seasonal floodplains of the Boro-Xudum distributary of the Okavango Delta, Botswana. This distributary is subject to an annual flood-pulse, the inundated area varying from a mean ...