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"van Niekerk, Johann H."
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Orange River Francolins (Scleroptila levaillantoides) persist in fragmented Highveld farming landscapes, South Africa
by
van Niekerk
,
Johann H
.
Published in
Avian research
(12.05.2017)
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Pair formation during summer exonerates Helmeted Guineafowl, Numida meleagris, as a germinating maize seedling destroyer
by
Van Niekerk
,
Johann H
.
Published in
African journal of wildlife research
(01.04.2015)
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Vocal Behaviour of the Red-Crested Korhaan, Lophotis ruficrista, in South Africa
by
Niekerk
,
Johann H
.
van
Published in
South African journal of wildlife research
(01.04.2014)
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Vocal behavior of Crested Guineafowl (Guttera edouardi) based on visual and sound playback surveys in the Umhlanga Lagoon Nature Reserve, KwaZulu-Natal province, South Africa
by
van Niekerk
,
Johann H
.
Published in
Avian research
(21.07.2015)
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Population structure and mating system of the Red-crested Korhaan (Lophotis ruficrista) in South Africa
by
van Niekerk
,
Johann H
Published in
Avian research
(24.12.2014)
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Bare-throated spurfowl (Pternistis spp.) males across Africa impress females with bright throat colours during courtship
by
van Niekerk
,
Johann H
.
Published in
Avian research
(2023)
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Population ecology of Red-necked Spurfowl Pternistis afer in the coastal towns of the Eastern Cape province, South Africa
by
van Niekerk
,
Johann H
Published in
Ostrich
(09.04.2021)
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Call variation of Crested Francolin (Dendroperdix sephaena) across Africa defies the effects of spatial gradients
by
Van Niekerk
,
Johann H
.
,
Megía‐Palma, Rodrigo
,
Forcina, Giovanni
Published in
Ibis (London, England)
(01.10.2021)
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The role of farm dams in the ecology of spur-winged geese (Plectropterus gambensis) on the Highveld, South Africa
by
van Niekerk
,
Johann H
.
Published in
Wetlands ecology and management
(01.08.2017)
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Age classes of developing Red-necked Spurfowl Pternistis afer based on plumage, morphology and behaviour
by
van Niekerk
,
Johann H
Published in
Ostrich
(04.05.2019)
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Female-only care of Swainson's Spurfowl Pternistis swainsonii chicks frees males for territorial maintenance
by
van Niekerk
,
Johann H
Published in
Ostrich
(08.12.2017)
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Purpose of Crested Francolin Ortygornis sephaena male collective calls at dusk based on livestream audio censusing
by
van Niekerk
,
Johann H
,
Forcina, Giovanni
Published in
Ostrich
(01.10.2020)
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Roosting requirements of Helmeted Guineafowl Numida meleagris on Highveld grain and livestock farms with alien tree groves, Gauteng province, South Africa
by
van Niekerk
,
Johann H
Published in
Ostrich
(02.01.2019)
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Age categories and corresponding gender characteristics of five Crested Francolin subspecies (genus Dendroperdix)
by
van Niekerk
,
Johann H
Published in
Ostrich
(02.01.2019)
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Coalition formation, mate selection and pairing behaviour of the Crested Francolin
by
van Niekerk
,
Johann H
Published in
Ostrich
(02.01.2018)
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Thermoregulatory function and sexual dimorphism of the throat sack in Helmeted Guineafowl (Numida meleagris) across Africa
by
Van Niekerk
,
Johann H
.
,
Megía-Palma, Rodrigo
,
Forcina, Giovanni
Published in
Avian research
(2022)
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Hierarchical analysis of Swainson's Spurfowl Pternistis swainsonii habitat use on Highveld maize and livestock farms
by
van Niekerk
,
Johann H
Published in
Ostrich
(01.09.2016)
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The phylogeny of francolins (Francolinus, Dendroperdix, Peliperdix and Scleroptila) and spurfowls (Pternistis) based on chick plumage (Galliformes: Phasianidae)
by
van Niekerk
,
Johann H
.
,
Mandiwana-Neudani, Tshifhiwa G.
Published in
Avian research
(08.01.2018)
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Habitat preferences of Helmeted Guineafowl Numida meleagris in the Krugersdorp Game Reserve, Gauteng province, South Africa
by
van Niekerk
,
Johann H
Published in
Ostrich
(01.08.2013)
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Vocal behaviour of Orange River Francolin Scleroptila levaillantoides based on visual and sound-playback surveys
by
van Niekerk
,
Johann H
Published in
Ostrich
(01.11.2012)
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