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Browsing by Author "Barnard, P"

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Experimental evidence for bird pollination and corolla damage by ants in the short-tubed flowers of Erica halicacaba (Ericaceae)

Author: Turner, R C ; Midgley, J J ; Barnard, P ; Simmons, R E ; Johnson, S D Date: 2012 Unrelated plants pollinated by similar animals tend to show convergent evolution of floral traits. Floral syndromes have been used successfully to develop hypotheses about pollination systems but can be misleading when plants have unusual ... Read more
Impacts of environmental change on large terrestrial bird species in South Africa: insights from citizen science data

Author: Hofmeyr, Sally D Date: 2012 Large terrestrial bird species, especially cranes and bustards, have adapted to low intensity agriculture to varying degrees, but large-scale industrial agriculture is in general inimical to these species. Cranes are charismatic and well ... Read more
The seminal legacy of the Southern African Bird Atlas Project

Author: Harrison, J A ; Underhill, L G ; Barnard, P Date: 2008 The first Southern African Bird Atlas Project was launched in 1986 and gathered bird distribution data from six countries of southern Africa. The project culminated with the publication of The Atlas of Southern African Birds in 1997. The ... Read more
When to stay, when to go: trade-offs for southern African arid-zone birds in times of drought

Author: Dean, W R J ; Barnard, P ; Anderson, M D Date: 2009 Arid environments remind one of the punctuated equilibrium theory of evolution : they experience long periods of stasis and low productivity, interrupted with episodic rainfall which spurs reproduction and movement. Birds, as highly dispersive ... Read more

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Browsing by Author "Barnard, P"

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