Détail de l'auteur
Auteur T. M. Crowe |
Documents disponibles écrits par cet auteur (12)
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Article
P. LLoyd, Auteur ; R. M. Little, Auteur ; T. M. Crowe, AuteurThe breeding biology of the Namaqua Sandgrouse, Pterocles namaqua, was studied and its nesting success determined through the observation of 278 nests over four consecutive breeding seasons at Droegrond, Northern Cape Province, South Africa, The[...]![]()
Article
R. Jansen, Auteur ; R. M. Little, Auteur ; T. M. Crowe, AuteurWe studied the breeding biology of the Redwing, Francolin, Francolinus levaillantii, in the highland grasslands of Mpumalanga Province, South Africa, from 1995-1996. The breeding season is from August to March. Clutches were incubated by hens on[...]![]()
Article
C. S. Ratcliffe, Auteur ; R. M. Gous, Auteur ; H. K. Swatson, Auteur ; T. M. Crowe, AuteurHelmeted Guineafowl, Numida meleagris, populations have declined significantly within the Midlands of KwaZulu-Natal since the early 1980s. Because guineafowl have been observed feeding on harvested soybean lands and because raw soybeans are know[...]![]()
Article
P. LLoyd, Auteur ; AJFK Craig, Auteur ; P. E. Hulley, Auteur ; M. F. Essop, Auteur ; P. Bloomer, Auteur ; T. M. Crowe, AuteurThe closely related Blackeyed Bulbul Pycnonotus barbatus, Cape Bulbul P. capensis and Redeyed Bulbul P. nigricans have parapatric to locally sympatric distributions within southern Africa. Extensive hybridization along narrow transition zones be[...]![]()
Article
R. M. Little, Auteur ; T. M. Crowe, AuteurOne of the key findings of the Grey-winged Francolin Research Project conducted on the Stormberg Plateau, Eastern Cape Province, South Africa during 1988-1992 was that predation, particularly by small mammals on incubating female Greywinged Fran[...]![]()
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A. L. Walker, Auteur ; R. C. K. Bowie, Auteur ; C. S. Ratcliffe, Auteur ; T. M. Crowe, AuteurThis study investigates the possibility of hybridisation between introduced domestic Helmeted Guineafowl Numida meleagris, derived from the West African subspecies N. m. galeata, and South African guineafowl, N. m. coronata. There is putative mo[...]![]()
Article
P. LLoyd, Auteur ; R. M. Little, Auteur ; T. M. Crowe, AuteurWe examined whether regular researcher Visits affected egg hatchability or nest predation for three ground-nesting bird species that incur high levels of nest predation, primarily by small mammals. Frequently Visited finch-lark (Eremopserix vert[...]![]()
Article
P. LLoyd, Auteur ; R. M. Little, Auteur ; T. M. Crowe, Auteur ; R. E. Simmons, AuteurThis study examines whether rainfall and its effects on food availability control the timing of migratory movements and breeding activity in the Namaqua Sandgrouse, Pterocles namaqua. Namaqua Sandgrouse exhibit a pattern of partial migration bet[...]![]()
Article
R. C. K. Bowie, Auteur ; G. Voelker, Auteur ; J. Fjeldsa, Auteur ; L. Lens, Auteur ; S. I. Hackett, Auteur ; T. M. Crowe, AuteurDuring the last 40 years, few species of African birds have undergone more taxonomic revision than the olive thrush Turdus olivaceus. This is due to disagreement on how to partition the striking phenotypic variation among allopatric populations.[...]![]()
Article
P. G. Ryan, Auteur ; D. Wright, Auteur ; G. Oatley, Auteur ; J. Wakeling, Auteur ; C. Cohen, Auteur ; T. L. Nowell, Auteur ; R. C. K. Bowie, Auteur ; V. Ward, Auteur ; T. M. Crowe, AuteurThe taxonomy of, and phylogenetic relationships among, African canaries typically assigned to the genus Serinus sensu lato (including the putative genera Alario, Pseudochloroptila, Serinops, Ochrospiza, Dendrospiza and Crithagra) were investigat[...]




