| Titre : | Ostrich No number - JUL 2001 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
L. G. Underhill, Auteur ;
J. S. Kirby, Auteur ;
R. B. West, Auteur ;
D. A. Scott, Auteur ;
N. C. Davidson, Auteur ;
L. Haanstra, Auteur ;
T. Piersma, Auteur ;
H. Hotker, Auteur ;
D. A. Stroud, Auteur
Article
B. Leisler, Auteur ;
H. Winkler, Auteur
The morphology of eight African papyrus-dwelling passerine species (Laniarius mufumbiri, Cisticola carruthersi, Bradypterus carpalis, Acrocephalus rufescens, Chloropeta gracilirostris, Ploceus (Sitagra) pelzelni, Ploceus (Textor) castanops, and [...]
Article
V. Venuto, Auteur ;
R. Massa, Auteur ;
L. Bottoni, Auteur
Parrot vocalisation is a very complex bioacoustic subject even to those biologists who are familiar with songbird analysis. This appears to be related to the great semantic complexity of vocal communication of these birds. Therefore,the detailed[...]
Article
L. D. C. Fishpool, Auteur
BirdLife International's Important BirdAreas (IBAs) in Africa and associated islands programme was launched at PAOC 8 in Burundi in 1992. Covering 58 countries and territories, it seeks to identify, document and protect all sites of global conse[...]
Article
H. S. Thompson, Auteur
This paper examines selected issues that in the author's opinion, will impact significantly on future directions for successful bird conservation work on the African continent. A brief review of the causes of biodiversity loss in Africa shows th[...]
Article
W. G. Tadesse, Auteur ;
T. Demel, Auteur ;
S. Edwards, Auteur ;
M. Olsson, Auteur
Species diversity of birds at Chilimo forest was studied during January-March 1998. A point-transect method with fixed radius (radius =
Article
S. Nachuha, Auteur ;
D. Pomeroy, Auteur
Concern for conservation of tropical forests and wetlands has been considerable in recent years, while savannas have received less attention, despite their being degraded through burning, over-grazing and tree-cutting, mainly for fuel. But tropi[...]
Article
T. Brooks, Auteur ;
A. Balmford, Auteur ;
N. Burgess, Auteur ;
L. A. Hansen, Auteur ;
J. Moore, Auteur ;
C. Rahbek, Auteur ;
P. Williams, Auteur ;
L. A. Bennun, Auteur ;
A. Byaruhanga, Auteur ;
P. Kasoma, Auteur ;
P. Njoroge, Auteur ;
D. Pomeroy, Auteur ;
M. Wondafrash, Auteur
An urgent question in biodiversity conservation is the extent to which priority areas for one well-known indicator group, like birds, "capture" species within other groups. The first tests of this question have indicated that capture is high. Bi[...]
Article
A. C. Kemp, Auteur
Twenty-three species of African hornbill (Bucerotiformes) are recognised under the present conservative taxonomy, divided among three genera and subdivided into 13 subspecies. Only one species (Yellow-casqued Wattled Hornbill Ceratogymna elata) [...]
Article
T. Terer, Auteur ;
N. Gichuki, Auteur
There is a growing interest in local knowledge on biodiversity as evidenced by increasing number of studies in this field and establishment of resource centres of indigenous knowledge the world over. The signing of the Convention on Biological D[...]
Article
L. Lens, Auteur ;
S. Van Dongen, Auteur
lndividual and population levels of fluctuating asymmetry (FA) often correlate positively with estimates of environmental and genetic stress. These relationships have promoted the widely-held belief that organisms with enhanced FA levels may act[...]
Article
S. O. Bober, Auteur ;
M. Herremans, Auteur ;
M. Louette, Auteur ;
J. C. K. Peterhans, Auteur ;
J. M. Bates, Auteur
For 37 endemic bird species from the Albertine Rift identified by Stattersfield et al. (1998), georeferenced collections of the Royal Museum for Central Africa (Tervuren, Belgium; n = 2266). The Field Museum (Chicago, USA; n = 774) and the Los A[...]
Article
N. Gichuki, Auteur ;
T. Terer, Auteur
Birds form an important and conspicuous component of forest biodiversity in Africa and many rural communities closely interact with and use birds in many ways. People that draw benefits from birds have positive attitudes towards them and are the[...]
Article
J. Brouwer, Auteur
Conservation of biological diversity ideally means conservation of entire ecosystems. To conserve ecosystems on a sustainable basis, you need to understand how they work. SYSTANAL is a checklist for analysing ecosystems, developed during years o[...]
Article
K. I. McCann, Auteur
South Africa is home to three species of crane,the country's national bird the Blue Crane, Africa's largest crane the Wattled Crane and the culturally significant Grey Crowned Crane. The Blue and Grey Crowned Crane are listed as "vulnerable", wh[...]
Article
S. K. Bobo, Auteur ;
K. Y. Njabo, Auteur ;
D. N. Anye, Auteur ;
M. Languy, Auteur
The Bamenda Apalis Apalis barnendae is a species endemic to Cameroon which, prior to this study, was known from only eight sites in the Bamenda Highlands and the Adamawa plateau. It is a restricted range species and its global status is consider[...]
Article
A. L. Archer, Auteur
Since its introduction to eastern Africa late last century, the Indian House Crow, Corvus splendens, has become a serious pest in many places from East London in the south to Djibouti in the north. House Crows have a major negative impact on ind[...]
Article
J. Muheebwa-Muhoozi, Auteur
Grey Crowned Cranes (henceforth "cranes") depend upon seasonal swamps for breeding, and many of these have been converted to agriculture in recent decades, a process which is continuing. Evidence from four different parts of Uganda where cranes [...]
Article
K. I. McCann, Auteur ;
K. Shaw, Auteur ;
M. D. Anderson, Auteur ;
K. Morrison, Auteur
Knowledge about the annual movement patterns of endangered species is important in understanding various aspects of their biology, such as dispersal from natal areas, seasonal movements,and areas where large numbers aggregate. We compare two tec[...]
Article
A. Burke, Auteur ;
V. Hudson, Auteur ;
H. Wilkins, Auteur ;
K. McCann, Auteur ;
F. Krige, Auteur ;
W. Foden, Auteur ;
L. Rodwell, Auteur
Three costume-reared juvenile Wattled Cranes were released to a non-breeding flock of Wattled Cranes in KwaZulu-Natal, South Africa in February and April 2000. The birds were released singly and as a cohort of 2 birds. All 3 remain alive at the [...]
Article
P. F. Forboseh, Auteur ;
R. N. Ikfuingei, Auteur
The Kilum-Ijim montane forest is effectively the last viable site for the Red Data Book species, Touraco bannermani. In 1987, BirdLife International began monitoring birds particularly Touraco bannermani in the area. During the three-year period[...]
Article
J. Brouwer, Auteur ;
W. C. Mullie, Auteur
Regular dry season counts of waterbirds have taken place in Niger since 1992, as a part of the African Waterbird Census. These counts included large sections of the river Niger and its floodplains, as well as up to fifty isolated wetlands. We we[...]
Article
P. M. B. Kasoma, Auteur
The spatial distribution of a foraging ciconiform bird community along the shores of Lake Edward and Kazinga Channel in Queen Elizabeth National Park, Western Uganda was studied between May 1985 and December 1987. There was marked preference for[...]
Article
S. J. Tyler, Auteur
In Botswana where rainfall is unpredictable and often highly localised, this results in resources being patchy. Many bird species are therefore nomadic to some degree. Movements of many, even common, species are, however, very poorly understood.[...]
Article
AJFK Craig, Auteur ;
P. E. Hulley, Auteur ;
C. A. Whittington-Jones, Auteur ;
B. T. Bonnevie, Auteur
During a study of granivorous birds in the Eastern Cape, South Africa, we have recorded the timing of moult in the Cape Weaver Ploceus capensis, the Spotted-backed Weaver Ploceus cucullatus, the Masked Weaver Ploceus velatus, the Red-billed Quel[...]
Article
A. Monadjem, Auteur
The community structure of birds was studied at four sites in Acacia savanna in the lowveld of Swaziland. Birds were surveyed monthly between June 1998 and May 1999 using a standard point count technique. A total of 128 species of birds was reco[...]
Article
J. A. Lindsell, Auteur
I radio-tracked 50 adult male territory holders of the Scaly-breasted Illadopsis Illadopsis albipectus in three areas with differing forest structure in Budongo, Forest,western Uganda, in order to relate aspects of ranging behaviour to generalis[...]
Article
S. Manu, Auteur
Past information and the current status of the critically endangered Ibadan Malimbe Malimbus ibadanensis is described. Twenty-one sites were surveyed for the Ibadan Malimbe over an eight month period in 2000. Ibadan Malimbes were found at two si[...]
Article
C. A. Whittington-Jones, Auteur ;
P. E. Hulley, Auteur ;
AJFK Craig, Auteur
Over the past 20 years, Red-billed Quelea have been recorded more widely and more frequently in the Eastern Cape province. Since 1996 we have censused seed-eaters and ringed more than 4600 Red-billed Quelea at three study sites. Of these, 81 hav[...]
Article
H. S. Thompson, Auteur ;
S. Kanyamibwa, Auteur
Article
C. Jackson, Auteur
A number of aspects of avian biology are known to vary according to the age and sex of an individual. In studies of bird populations using ringing as a technique, accurate age determination is therefore a vital component. The European EURING age[...]
Article
Anonymous, Auteur
Article
I. Owiunji, Auteur
This study presents results of the recovery of bird populations in a logged compartment in Budongo Forest Reserve. Compartment W21 was first logged in 1963-64 and again in 1996-97. Between 1993-95 studies were conducted to establish the long-ter[...]
Article
C. M. Gichuki, Auteur ;
E. W. Kairu, Auteur ;
R. O. Okelo, Auteur
The breeding behaviour of the African Snipe Gallinago nigripennis was studied at Lake OI Bolossat (36 degrees 26' E,0 degrees 09'S) in Central Kenya from January 1997-December 1998. Over 100 individuals marked with aluminium rings, coloured leg [...]
Article
M. Louette, Auteur
Most of the original habitat on the Comoros was forest, but humans brought about important modifications. Presently, fifty-four terrestrial birds are resident. Endemism is as follows: Grande Comore is the richest (at species and at subspecies le[...]
