David S. Hubble

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http://sro.sussex.ac.uk Pocock, Michael J O, Newson, Stuart E, Henderson, Ian G, Peyton, Jodey, Sutherland, William J, Noble, David G, Ball, Stuart G, Beckmann, Björn C, Biggs, Jeremy, Brereton, Tom, Bullock, David J, Buckland, Stephen T, Edwards, Mike, Eaton, Mark A, Harvey, Martin C et al. (2015) Developing and enhancing biodiversity monitoring(More)
The floating water fern Salvinia molesta has occurred in Lake Naivasha since the early 1960s and during this period has obstructed fishing activities and navigation. In recent years the extent of Salvinia has declined markedly. Since 1988, a second floating weed, Eichhornia crassipes (water hyacinth), has colonised the lake. Salvinia formed large mats(More)
Lake Naivasha is a shallow freshwater lake in the Rift Valley of Kenya. Since the 1980s, when the lake showed a seasonal shift between diatom and cyanobacterial dominance it has become moderately eutrophic. Its algal assemblage is now dominated by a persistent Aulacoseira italica population both numerically and in terms of contribution to overall primary(More)
OBJECTIVE In 2010, the National Children's Study launched 3 alternative recruitment methods to test possible improvements in efficiency compared with traditional household-based recruitment and participant enrollment. In 2012, a fourth method, provider-based sampling (PBS), tested a probability-based sampling of prenatal provider locations supplemented by a(More)
Lake Naivasha, a shallow tropical lake in Kenya's Rift Valley, has an unstable water column and is moderately eutrophic. Nutrient (bottom-up) control of primary production is more important than grazing (top-down) control. Experimental nutrient enrichment was used to investigate bottom-up control in more detail. Minor nutrients were not found to be(More)
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