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Now showing items 11-20 of 83
Seaweeds in two oceans: beta-diversity
(Frontiers Media, 2017)
Several species assembly mechanisms have been proposed to structure ecological
communities. We assess the biogeography of seaweeds along 2,900 km of South
Africa’s coastline in relation to a thermal gradient produced by ...
Possible aquaculture development in Nigeria: evidence for commercial prospects
(David Publishing, 2017)
The cultivation of desirable aquatic organisms is becoming increasingly important as one of the fastest-growing
agro-industrial activities in the world. Nigeria, over the years, practised traditional methods of aquaculture ...
Siphonophores from surface waters of the Colombian Pacific Ocean
(Cambridge University Press, 2018)
Siphonophores are colonial hydrozoans that feed on zooplankton including fish larvae, and occur throughout the world’s oceans from surface waters to ocean depths. Here we describe the composition of hyponeustonic siphonophores ...
Conservation status and threats for African reptiles
(Elsevier, 2016)
The assimilation of information on taxonomy, distribution, basic ecology and conservation status of Africa's reptiles lags far behind that for most other continents. Many regions of mainland Africa are rarely surveyed, ...
Scale-dependent orientation in movement paths: a case study of an African viper
(Wiley, 2016)
Decisions relating to the orientation of movement by animals and how this translates into movement patterns can occur at multiple spatial scales simultaneously, but this interaction is poorly understood for many groups of ...
Snake body size frequency distributions are robust to the description of novel species
(Ecological Society of America, 2016)
The accurate interpretation of body size frequency distributions (BSFDs) has important implications
for understanding large-scale
ecological and evolutionary patterns because they are shaped
by ecological and evolutionary ...
An ambusher’s arsenal: chemical crypsis in the puff adder (Bitis arietans)
(The Royal Society, 2015)
Ambush foragers use a hunting strategy that places them at risk of predation by both visual and olfaction-oriented predators. Resulting selective pressures have driven the evolution of impressive visual crypsis in many ...
Sublittoral seaweed communities on natural and artificial substrata in a high-latitude coral community in South Africa
(National Inquiry Services Centre (NISC), 2016)
Coral mortality may result in macroalgal proliferation or a phase shift into an alga dominated state. Subtidal, high-latitude western Indian Ocean coral communities at Sodwana Bay on the KwaZulu-Natal coast, South Africa, ...
Reviewing evidence of marine ecosystem change off South Africa
(National Inquiry Services Centre, 2013)
Recent changes have been observed in South African marine ecosystems. The main pressures on these
ecosystems are fishing, climate change, pollution, ocean acidification and mining. The best long-term datasets are
for trends ...
Testing for the occurrence of pilchard herpesvirus (PHV) in South African sardine Sardinops sagax
(National Inquiry Services Centre (NISC), 2016)
Catches of South African sardine Sardinops sagax have declined in recent years from about 200 000 t harvested annually during the period 2002–2006 to less than 100 000 t. Consequently, some companies are now importing ...