Diet of the Migrant Lesser Kestrels<i>Falco naumanni</i>in their Winter Quarters in South Africa

Kok, O. B.; Kok, A. C.; Ee, C. A. van

doi:10.3161/068.035.0207

Cited by 18 publications

(23 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…On the other hand, numbers of sun spiders in the diet are higher in January and much lower in February and March. A similar change in the proportion of those two main groups of prey has been shown in the diet of the lesser kestrel Falco naumanni wintering in the same areas (Kopij, 1998, 2002, 2005, 2007; Anderson, Kok & Erasmus, 1999; Kok, Kok & Van Ee, 2000). Preying on rather sluggish orthopterans must be energetically much less expensive then preying on fast‐moving sun spiders.…”

Section: Discussionsupporting

confidence: 73%

Seasonal variation in the diet of the Amur kestrel (Falco amurensis) in its winter quarter in Lesotho

Kopij

2010

African Journal of Ecology

View full text Add to dashboard Cite

Section: Discussionsupporting

confidence: 73%

Seasonal variation in the diet of the Amur kestrel (Falco amurensis) in its winter quarter in Lesotho

Kopij

2010

African Journal of Ecology

View full text Add to dashboard Cite

“…Wat eersgenoemde aspek betref verwys menige outeurs na die jaarlikse, maandelikse en selfs daaglikse variasie in dieetsamestelling na gelang van veranderings in die plaaslike beskikbaarheid van potensiële voedselbronne. 14,27,29,38 Die voorkoms van opvallende dieetverskille gedurende die nat en die droë seisoen is in hierdie opsig veelseggend. Die aanvang van die nat, warm seisoen word naamlik gekenmerk deur 'n toevloed van veral fitofage insekte.…”

Section: Seisoensvariasieunclassified

“…Volwasse individue met hoë voedingswaarde is dan vry algemeen in grasveld beskikbaar, 36 juis wanneer energieopbouing en vetneerlegging vlak voor die aanbreek van ongure wintertoestande groot voordele vir voëls kan inhou. 38 Die Isoptera is die enigste van die belangrike prooitaksa wat 'n opvallende benuttingspiek gedurende die koue, droë seisoen openbaar. Verskillende faktore is vir hierdie verskynsel verantwoordelik.…”

Section: Seisoensvariasieunclassified

Dietary composition of birds species at an inland airport in South Africa

Kok¹,

Kok²

2002

Suid-Afrikaanse Tydskr Natuurwetenskap Tegnol

View full text Add to dashboard Cite

* Outeur aan wie korrespondensie gerig kan word INLEIDINGDie beskikbaarheid van voedsel word beskou as 'n belangrike oorsaak vir die probleme wat met voëls op lughawens ondervind word.1 Ten einde teikengebiede vir moontlike beheermaatreëls te identifiseer is die dieetsamestelling van voëlsoorte van kardinale belang.2 Die ontleding van maag-en/of kropinhoude is in hierdie verband uiters geskik vir die bepaling van voedingsgewoontes aangesien dit die beste aanduiding verskaf van voedsel wat werklik benut word.3 Relatief min gedetailleerde gegewens is bekend oor die dieet van Suid-Afrikaanse voël-soorte, in besonder dié van droë grasveldgebiede. 4 In die meeste gevalle is beskikbare inligting ook net tot vae veralgemenings in standaard naslaanwerke beperk. [5][6][7] In hierdie studie word die dieetsamestelling van oorwegend grondlewende voëlsoorte in 'n grasveldgemeenskap op 'n binnelandse lughawe ondersoek. (1985)(1986)(1987)(1988)(1989)(1990)(1991)(1992)(1993)(1994)(1995) 'n oppervlakte van 644 ha en vorm deel van die SuiderAfrikaanse grasveldbioom. STUDIEGEBIED ABSTRACT Dietary composition of bird species at an inland airport in South Africa Stomach contents of 51 bird species that posed a potential threat to aviation were collected at the Bloemfontein airport over a period of 11 years8 Die plantegroei van die streek, meer spesifiek, kan as 'n droë Cymbopogon-Themeda-veldtipe beskou word.9 Met 'n hoogte van 1 422 m bo seespieël en 'n gemiddelde jaarlikse reënval van 550 mm word die gebied as 'n semi-ariede somerreënvalstreek geklassifiseer.10 Gemiddelde daaglikse maksimum en minimum temperature wissel van 29,8°C in Januarie tot -1,7°C in Julie, terwyl die uiterste temperature in die ooreenstemmende tydperk van 39,3°C tot -10,3°C varieer. MATERIAAL EN METODESAs deel van 'n voëlbeheerprogram op die Bloemfontein-lughawe word voëls op aanloopbane onmiddellik voor die aankoms of vertrek van geskeduleerde stralervlugte met 12-boor haelgewere deur beamptes van die plaaslike brandweerafdeling geskiet. Karkasse is gewoonlik binne 'n uur gevries in 'n vrieskas wat vir navorsingsdoeleindes beskikbaar gestel is. Vanaf Januarie 1985 tot Desember 1995 is 'n totaal van 3 544 karkasse op 'n maandelikse basis vir ondersoek na die laboratorium verwyder. Na ontdooiing is die voëls volgens die klassifikasie en nomenklatuur van Maclean 6 geïdentifiseer. (In navolging van Clancey 11 is daar voorkeur verleen aan die benaming witvlerkkorhaan (Eupodotis afraoides) eerder as swartkorhaan (E. afra) wat geen

show abstract

“…But the problem is that swarms are unpredictable events in space and time, so that winged termites represent a resource that should be exploited in an opportunistic manner. Predation of alates by birds has been studied in more details in Africa (e.g., De Bont 1964, Thiollay 1970, Dial & Vaughan 1987, Kok et al 2000, Kopij 2000. Unfortunately, little has been studied about this interaction in Brazil.…”

Section: Termites As Food Resource For Brazilian Birdsmentioning

confidence: 99%

“…Termites (Insecta: Isoptera) have been reported as an important food resource for birds around the world (Eisenmann 1961, De Bont 1964, Thiollay 1970, Dial & Vaughan 1987, Paiva 1998, Kok et al 2000, Kopij 2000, Mallet-Rodrigues 2001, Gussoni & Campos 2003, Olson & Alvarenga 2006, Faria 2007, Sazima 2008. Termitaria (termite nests) also represent nest sites for several bird species (Hardy 1963, Sazima 1989, Dubs 1992, Naka 1997, Sick 1997, Brightsmith 2000.…”

Section: Introductionmentioning

confidence: 99%

Bird-termite interactions in Brazil: A review with perspectives for future studies

et al. 2015

View full text Add to dashboard Cite

We present a review on the principal interactions between birds and termites in Brazil. We found 218 bird species feeding on termites or using termitaria for nesting or perching. Termites were mentioned as food source for 179 bird species. Alates were the most consumed caste. Termitaria were mentioned as nest site for 45 bird species. Some bird species also perch on the top of termite mounds to search for their prey or to conduct territorial and/or courtship displays. Considering all interactions between both animal groups, little is known about the identification of termite genera or species. Therefore, we suggest more detailed studies to be conducted on the natural history and ecology of interactions between birds and termites in Brazil. Keywords: birds, Brazil, feeding, nesting, termites.VASCONCELOS, M.F., HOFFMANN, D., ARAÚ JO, M.C., VASCONCELOS, P.N. Bird-termite interactions in Brazil: A review with perspectives for future studies.dx. doi.org/10.1590/1676-06032014003514Resumo: Apresentamos aqui uma revisã o sobre as principais interaçõ es entre aves e cupins no Brasil. Foram registradas 218 espécies de aves alimentando-se de cupins ou usando cupinzeiros para nidificar ou se empoleirar. Os cupins foram citados como recurso alimentar para 179 espécies de aves, sendo as formas aladas as mais consumidas. Os cupinzeiros foram citados como sítio de nidificaçã o para 45 espécies de aves. Algumas espécies de aves também se empoleiram no alto de termiteiros para localizar suas presas ou para realizar exibiçõ es territoriais e/ou de corte. Considerando-se todas as interaçõ es entre ambos os grupos de animais, pouco ainda se conhece sobre a identificaçã o dos gêneros e espécies de térmitas envolvidos. Assim, sugerimos a realizaçã o de estudos mais detalhados sobre histó ria natural e ecologia das interaçõ es entre aves e cupins no Brasil.

show abstract

Diet of the Migrant Lesser KestrelsFalco naumanniin their Winter Quarters in South Africa

Cited by 18 publications

References 10 publications

Seasonal variation in the diet of the Amur kestrel (Falco amurensis) in its winter quarter in Lesotho

Seasonal variation in the diet of the Amur kestrel (Falco amurensis) in its winter quarter in Lesotho

Dietary composition of birds species at an inland airport in South Africa

Bird-termite interactions in Brazil: A review with perspectives for future studies

Contact Info

Product

Resources

About