Vocal behaviour of Orange River Francolin <i>Scleroptila levaillantoides</i> based on visual and sound-playback surveys

Niekerk, Johann H van

doi:10.2989/00306525.2012.694914

Cited by 5 publications

(6 citation statements)

References 9 publications

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“…The flight alarm call was also found to be more or less similar to the flight calls of Helmeted Guineafowl (Numida meleagris), Crested (D. sephaena) and Orange River (S. lavaillantoides) Francolins (van Niekerk, 2010(van Niekerk, , 2012J.H. van Niekerk, unpublished).…”

Section: Discussionsupporting

confidence: 53%

“…They may also enable breeding pairs to establish the location of neighbouring coveys with whom their offspring can mate since siblings do not pair (e.g. Komen, 1987;van Niekerk, 2009van Niekerk, , 2010van Niekerk, , 2012J.H. van Niekerk, unpublished;Potts, 2012).…”

Section: Discussionmentioning

confidence: 99%

“…Nahan's Partridge (Ptilopachus nahani), previously regarded as a spurfowl (Sinclair and Ryan, 2003;Fuller et al, 2012), is no longer a spurfowl and is therefore excluded from Table 1 (Crowe, 2010). The sound recordings made by the author were undertaken during research for published papers, but most calls have not yet been published (van Niekerk et al, 2009;van Niekerk, 2004van Niekerk, , 2010van Niekerk, , 2011van Niekerk, , 2012. Of particular importance is that the social context of calls (group size, courtship behavior, care of offspring and stressful situations), and the responses of conspecifics, were noted during natural calls/sound-playbacks.…”

Section: Methodsmentioning

confidence: 99%

“…Furthermore, spurfowls are actively hunted in Africa (Viljoen, 2005), and calls can therefore also be used to entice spurfowl responses by using sound-playbacks for management purposes, such as locating territories, sexing, and determining densities and habitat preferences (cf. Wolff, 1978;Little and Crowe, 1992;Fuller et al, 2012;van Niekerk, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Vocal structure, behavior and partitioning of all 23 Pternistis spp. into homologous sound (and monophyletic) groups

Niekerk¹

2013

Chinese Birds

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The aims of this research were (1) to provide a description of spurfowl Pternistis spp. calls and their social context; (2) to describe the divergence of advertisement calls; and (3) to appropriate 23 spurfowl species to homologous sound groups which have been synthesized with recognized monophyletic groups within Pternistis spurfowls. Sound group partitioning was primarily based on male advertisement calls. A total of 218 recordings (rendering ~300 identifiable calls) were analyzed covering 22 out of 23 spurfowl species in Africa. One species was assessed from written accounts. The repertoire size per spurfowl varies between 7 and 11 calls. Spurfowl calls were arranged into three broad categories including (1) advertisement calls; (2) maintenance calls including distress calls, juvenile whining ("mews"), cheeps and comfort calls; and (3) male-female and female-offspring bonding calls. Spurfowl species were set out in eight sound groups of which five were more or less congruent with the monophyletic groups of Hall (1963), but sound groups produced more partitioning as Hall described only five groups relevant to Pternistis spp. The divergence of advertisement calls apparently minimizes hybridization between sympatric species but the "genetic distance" between spurfowl species is relatively small causing hybridization among spurfowl species. Despite the vocalizations of Hartlaub's Spurfowl (P. hartlaubi) differing significantly from the rest of the spurfowls, sound analyses suggest that it remains within Pternistis.

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Section: Discussionsupporting

confidence: 53%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Vocal structure, behavior and partitioning of all 23 Pternistis spp. into homologous sound (and monophyletic) groups

Niekerk¹

2013

Chinese Birds

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“…To that end, the most important challenge was to design and build a portable small electronic device that would fit into trap boxes and produce synthetic sound cues attractive to rats. While a single‐sound frequency with constant duration is easily produced and disseminated, vertebrates are well known to readily habituate and consequently to ignore any type of monotonous signal or cue . We addressed the challenge by building an electronic device with a piezoelectric transducer driven by an algorithm that randomly generated sound cues (Fig.…”

Section: Discussionmentioning

confidence: 99%

Natural and synthetic vocalizations of brown rat pups, Rattus norvegicus, enhance attractiveness of bait boxes in laboratory and field experiments

Takács

Gries

2016

Pest Management Science

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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

Niekerk

2015

Avian Res

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Background: Generally speaking, playbacks were often ineffective to determine the group sizes of birds since mainly males from leks responded. This limitation has not been tested properly for flocking birds such as Crested Guineafowl (Guttera edouardi) with the view to use it as a counting method. The aims of the study reported in this paper were (1) to describe the calls of Crested Guineafowl in a social context; (2) to interpret calls in an evolutionary context; and (3) to demonstrate that playbacks can be used to locate and count Crested Guineafowl in small isolated forests. Methods: The vocal behavior of Crested Guineafowl was observed during a survey conducted in the Umhlanga Lagoon Nature Reserve (KwaZulu-Natal, South Africa) from November 2010 to June 2012. Transect line observations and sound playback methods were used. Results: The behavioral context and structure of calls were described. The eight calls described for Crested Guineafowl were produced mainly to unite flock members in the dense understory, where visibility was poor, and to repel intruders. When not disturbed, Crested Guineafowl were quiet and only made soft contact calls. Conclusions: The high rate of call back and the fact that flocks invariably approach the source of the call en masse, shows that field researchers are able to assess the population size of Crested Guineafowl with sound playbacks along a transect. The value of playbacks as a conservation tool is assessed.

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Vocal behaviour of Orange River Francolin Scleroptila levaillantoides based on visual and sound-playback surveys

Cited by 5 publications

References 9 publications

Vocal structure, behavior and partitioning of all 23 Pternistis spp. into homologous sound (and monophyletic) groups

Vocal structure, behavior and partitioning of all 23 Pternistis spp. into homologous sound (and monophyletic) groups

Natural and synthetic vocalizations of brown rat pups, Rattus norvegicus, enhance attractiveness of bait boxes in laboratory and field experiments

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

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