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Distribution, abundance and productivity of benthic invertebrates at the Berg River estuary, South Africa
TLDR
Production and P B ratios of invertebrates in estuaries and coastal lagoons at temperate and subtropical latitudes were positively correlated with mean annual ambient temperature and negatively with distance from the equator.
The Riddle of the Sands: Why are Shorebird Densities so High in Southern Estuaries?
TLDR
It is concluded that wader populations track the carrying capacities of coastal wetlands across a wide latitudinal range, contrary to predictions of some models.
Distribution of shorebirds at the Berg River Estuary, South-Africa, in relation to foraging mode, food-supply and environmental features
TLDR
Energy intake rates of Grey Plovers were very consistent across the estuary, suggesting that individuals occupy or defend areas which provide access to comparable food resources, and Curlew Sandpipers may use neighbour success rates in selecting foraging sites.
SEASONAL ABUNDANCE, HABITAT SELECTION AND ENERGY CONSUMPTION OF WATERBIRDS AT THE BERG RIVER ESTUARY, SOUTH AFRICA
Velasquez, C.R., Kalejta, B. & Hockey, P.A.R. 1991. Seasonal abundance, habitat selection and energy consumption of waterbirds at the Berg River estuary, South Africa. Ostrich 62:109-123. The
Intense predation cannot always be detected experimentally: A case study of shorebird predation on nereid polychaetes in South Africa
TLDR
The fact that the predators' high energy requirements prior to northward migration coincide with the period of peak production of invertebrate prey makes the Berg River estuary an exceptionally favourable wintering area.
DIETS OF SHOREBIRDS AT THE BERG RIVER ESTUARY, SOUTH AFRICA: SPATIAL AND TEMPORAL VARIATION
Summary Kalejta, B. 1993. Diets of shorebirds at the Berg River estuary, South Africa: spatial and temporal variation. Ostrich 64: 123–133. The diets of three common migrant waders; Curlew Sandpiper
Distribution, biomass and production of Ceratonereis erythraeensis (Fauvel) and Ceratonereis keiskama (Day) at the Berg River Estuary, South Africa
TLDR
There was marked size-related depth stratification of both species, with small worms being concentrated in the upper layer of the substratum and larger ones deeper down, as well as a high population biomass during winter and lowest biomass during January-February.