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You searched for: Subject Democratic Republic of the Congo Remove constraint Subject: Democratic Republic of the Congo
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1. Zaire butterflies and faunal diversity in the tropics

Author:
Source:
Biological journal of the Linnean Society 1978 v.10 no.3 pp. 349-360
ISSN:
0024-4066
Subject:
birds; butterflies; fauna; flight; rain forests; rivers; tropics; Democratic Republic of the Congo; South America
Abstract:
... Samples of butterflies were collected along the Zaire River from its source to Kisangani and in the Ituri region. The number of species flying in the same area has been estimated wherever possible, and the degree of faunal similarity at different sites. The number of species increases as one proceeds north from 50–100 to 100–150, and the fauna is separable into two groups. The difference in faunal ...
DOI:
10.1111/j.1095-8312.1978.tb00021.x

2. Kernel oils of seven plant species of Zaire

Author:
Foma, M.; Abdala, T.
Source:
Journal of the American Oil Chemists' Society 1985 v.62 no.5 pp. 910-911
ISSN:
0003-021X
Subject:
plant fats and oils; wild plants; seeds; fatty acids; industrial oils; Democratic Republic of the Congo
DOI:
10.1007/BF02541756

3. Suspended sediment production in a suburban tropical basin (Lubumbashi, Zaire)

Author:
Source:
Hydrological sciences journal 1986 v.31 no.1 pp. 39-49
ISSN:
0262-6667
Subject:
basins; floods; rivers; runoff; sediment transport; sediment yield; suspended sediment; watersheds; wet season; Democratic Republic of the Congo
Abstract:
... A study of suspended sediment transport in the 8.5 km2 River Lubwe catchment was carried out during the wet season 1983–1984. The suspended sediment yield was estimated using the suspended-sediment rating curve technique and detailed observations of 10 runoff events. The River Lubwe is characterized by periodic high magnitude floods, during which the bulk of the load is transported. The total susp ...
DOI:
10.1080/02626668609491026

4. An Investigation of Pathogenicity of four Isolates of Fusarium oxysporum from South America, Africa and Malaysia to Clonal Oil Palm

Author:
J. Flood; R. M. Cooper; P. E. Lees
Source:
Phytopathologische Zeitschrift 1989 v.124 no.1 pp. 80-88
ISSN:
0931-1785
Subject:
Elaeis guineensis; Fusarium oxysporum; chlorosis; growth retardation; pathogenicity; pathogens; plant growth; planting; plantlets; Brazil; Democratic Republic of the Congo; Malaysia
Abstract:
... The pathogenicity of four isolates of Fusarium oxysporum from Brazil, Zaire and Malaysia, to clonal oil palm (Elaeis guineensis) was examined. The isolates from Brazil and Zaire were virulent pathogens which extensively colonized inoculated plantlets, producing severe stunting and chlorosis and significantly reducing plant growth. In contrast, two isolates from Malaysia were avirulent or only weak ...
DOI:
10.1111/j.1439-0434.1989.tb04898.x

5. The role of CIDA in international forestry development: CIDA Forestry and Conservation Sector

Source:
Forestry chronicle 1990 v.66 no.3 pp. 219-235
ISSN:
0015-7546
Subject:
development policy; forest policy; tropical forests; development projects; developing countries; resource management; forest management; deforestation; development aid; forestry development; forest resources; international cooperation; Canada; Honduras; Democratic Republic of the Congo
DOI:
10.5558/tfc66219-3

6. Change in bile salt dependent lipase in human breast milk during extended lactation

Author:
Dupuy, P.; Sauniere, J.F.; Vis, H.L.; Leclaire, M.; Lombardo, D.
Source:
Lipids 1991 v.26 no.2 pp. 134-138
ISSN:
0024-4201
Subject:
human lactation; lactation duration; nutrient content; triacylglycerol lipase; breast milk; maternal nutrition; enzyme activity; France; Democratic Republic of the Congo
DOI:
10.1007/BF02544007
PubMed:
2051895

7. Pteridophyta collected in the Kivu Zone of Zaire

Author:
Jan Kornaś; Kazimierz A. Nowak
Source:
Acta Societatis Botanicorum Poloniae 1992 v.61 no.1 pp. 157-162
ISSN:
0001-6977
Subject:
ferns and fern allies; taxonomic revisions; Democratic Republic of the Congo
Abstract:
... A list is given of 50 taxa of pteridophytes collected in 1983 in the Kivu Zone of Zaire by K. A. Nowak and identified in KRA by J. Kornaś. Twenty six of these taxa have not been indicated for the Kivu Zone in the recent revision of the pteridophytes of this area by Pichi Sermolli (1983, 1985). ...
DOI:
10.5586/asbp.1992.013

8. Shortcuts in Cassava Processing and Risk of Dietary Cyanide Exposure in Zaire

Author:
Mayambu Banea; Nigel H. Poulter; Hans Rosling
Source:
Food and nutrition bulletin v.14 no.2 pp. 1-7
ISSN:
0379-5721
Subject:
cassava; cassava flour; cyanides; etiology; focus groups; interviews; risk estimate; roots; soaking; toxicity; women; Democratic Republic of the Congo
Abstract:
... Konzo is a paralytic disease that has been attributed to shortcuts in cassava processing resulting in dietary cyanide exposure. Through a combination of anthropological and chemical methods, this study in Zaire provides support for such an aetiology. Observations as well as focus group and individual interviews revealed that women in the konzo-affected Bandundu region, when in a hurry to sell cass ...
DOI:
10.1177/156482659201400201

9. The linyphiid fauna of eastern Africa (Araneae: Linyphiidae)--distribution patterns, diversity and endemism

Author:
Scharff, N.
Source:
Biological journal of the Linnean Society 1992 v.45 no.2 pp. 117-154
ISSN:
0024-4066
Subject:
geographical distribution; phylogeny; biogeography; climate change; species diversity; Araneae; altitude; habitats; fauna; forests; Kenya; Malawi; Tanzania; Democratic Republic of the Congo; Uganda
Abstract:
... Distributions, endemism and diversity among East African linyphiids are analysed and discussed in relation to other forest organisms and the environmental history of eastern African. A total of 231 species are reported from eastern Africa, of which 14 are confined to the Afroalpine region and 114 species to moist forests. Only 12 of the latter are widely distributed. The rest are only known from o ...
DOI:
10.1111/j.1095-8312.1992.tb00635.x

10. Historical trends in forager and farmer exchange in the Ituri rain forest of Northeastern Zaire

Author:
Wilkie, D.S.; Curran, B.
Source:
Human ecology 1993 v.21 no.4 pp. 389-417
ISSN:
0300-7839
Subject:
farming systems; tropical rain forests; history; resource allocation; Democratic Republic of the Congo
DOI:
10.1007/BF00891141

11. Risk analysis of new maize technology in Zaire: a portfolio approach

Author:
Glenn C.W. Ames; Donald W. Reid; Li‐Fang Hsiou
Source:
Agricultural economics 1993 v.9 no.3 pp. 203-214
ISSN:
0169-5150
Subject:
corn; costs and returns; cotton; crop production; cropping systems; farmers; farming systems; farms; models; prices; quadratic programming; risk; risk analysis; staple crops; Democratic Republic of the Congo
Abstract:
... Risk associated with the adoption of new maize technology and the impact of mandatory cotton production on traditional farmers in the Kasai Oriental Region of Zaire are evaluated within a portfolio context using a quadratic programming model. Seasonal net returns for farm plans including four levels of maize technology in combination with staple food crops are evaluated, with and without mandatory ...
DOI:
10.1111/j.1574-0862.1993.tb00268.x

12. Yield losses to maize streak disease and Busseola fusca (Lepidoptera: Noctuidae), and economic benefits of streak-resistant maize to small farmers in Zaire

Author:
Vogel, W.O.; Hennessey, R.D.; Berhe, T.; Matungulu, K.M.
Source:
International journal of pest management 1993 v.39 no.2 pp. 229-238
ISSN:
0967-0874
Subject:
Zea mays; Maize streak virus; Busseola fusca; crop damage; crop yield; economic analysis; incidence; cultivars; varietal resistance; small farms; disease resistance; pest resistance; disease severity; Democratic Republic of the Congo
DOI:
10.1080/09670879309371796

13. Establishment and spread of Gyranusoidea tebygi Noyes and Anagyrus mangicola Noyes (Hymenoptera: Encyrtidae), two biological control agents released against the mango mealybug Rastrococcus invadens Williams (Homoptera: Pseudococcidae) in Africa

Author:
Neuenschwander, P.; Boavida, C.; Bokonon-Ganta, A.; Gado, A.; Herren, H.R.
Source:
Biocontrol science and technology 1994 v.4 no.1 pp. 61-69
ISSN:
0958-3157
Subject:
parasitoids; Mangifera; Anagyrus; biological control agents; population density; insect control; geographical distribution; insect pests; Gyranusoidea tebygi; Rastrococcus invadens; biological control; rearing; natural enemies; Benin; Democratic Republic of the Congo; Cote d'Ivoire; Ghana; Republic of the Congo; Togo (Africa); Nigeria; Sierra Leone; Gabon
DOI:
10.1080/09583159409355313

14. Genetic variation in 26 populations of Racosperma auriculiforme and Racosperma mangium using allozymes

Author:
Khasa, P.D.; Cheliak, W.M.; Bousquet, J.
Source:
Canadian journal of forest research = 1994 v.24 no.6 pp. 1123-1132
ISSN:
0045-5067
Subject:
Fabaceae; genetic variation; allozymes; heterozygosity; genetic distance; provenance; enzyme polymorphism; Democratic Republic of the Congo; Australia; Indonesia; Papua New Guinea; Republic of the Congo
Abstract:
... Racosperma auriculiforme (Cunn. ex Benth.) Pedley and Racosperma mangium (Willd.) Pedley are two fast-growing multipurpose leguminous species that have great potential for reforestation in the subhumid and humid tropics. The level and distribution of genetic variability were evaluated among and within 13 populations of each species at 18 loci encoding 10 enzymes, using starch gel electrophoresis. ...
DOI:
10.1139/x94-149

15. Mutualism between a leguminous tree and large African monkeys as pollinators

Author:
Gautier-Hion, A.; Maisels, F.
Source:
Behavioral ecology and sociobiology 1994 v.34 no.3 pp. 203-210
ISSN:
0340-5443
Subject:
Daniellia; Colobus; Cercocebus; Cercopithecus; monkeys; pollinators; pollination; mutualism; nectar feeding; flowers; plant morphology; Democratic Republic of the Congo
DOI:
10.1007/BF00167745

16. The utility of RAPD markers for the determination of genetic variation in oil palm (Elaeis guineensis)

Author:
Shah, F.H.; Rashid, O.; Simons, A.J.; Dunsdon, A.
Source:
Theoretical and applied genetics 1994 v.89 no.6 pp. 713-718
ISSN:
0040-5752
Subject:
Elaeis guineensis; genetic markers; genetic variation; germplasm; geographical variation; random amplified polymorphic DNA technique; Nigeria; Democratic Republic of the Congo; Cameroon; Tanzania
Abstract:
... The genetic variation among different accessions of oil-palm germplasm collected from Africa was estimated using random primers and the polymerase chain reaction. The present study revealed high levels of genetic variation in these accessions. Electrophoresis of the amplification products indicated that nine out of 20 primers were able to generate polymorphic products ranging in length from 0.2 kb ...
DOI:
10.1007/BF00223710
PubMed:
24178016

17. Benzylisoquinoline alkaloids from Anisocycla jollyana leaves

Author:
Kanyinda, B.; Vanhaelen-Fastre, R.; Vanhaelen, M.
Source:
Journal of natural products 1995 v.58 no.10 pp. 1587-1589
ISSN:
0163-3864
Subject:
isoquinoline alkaloids; spectral analysis; chemical constituents of plants; molecular conformation; leaves; Menispermaceae; Democratic Republic of the Congo
DOI:
10.1021/np50124a017

18. Chloroplast DNA variation and the recent radiation of the giant senecios (Asteraceae) on the tall mountains of eastern Africa

Author:
Knox, E.B.; Palmer, J.D.
Source:
Proceedings of the National Academy of Sciences of the United States of America 1995 v.92 no.22 pp. 10349-10353
ISSN:
0027-8424
Subject:
Asteraceae; DNA; chloroplasts; restriction mapping; genetic variation; phylogeny; biogeography; mountains; Uganda; Democratic Republic of the Congo; Kenya; Tanzania
Abstract:
... Chloroplast DNA restriction-site variation was surveyed among 40 accessions representing all 11 species of giant senecios (Dendrosenecio, Asteraceae) at all but one known location, plus three outgroup species. Remarkably little variation (only 9 variable sites out of roughly 1000 sites examined) was found among the 40 giant senecio accessions, yet as a group they differ significantly (at 18 sites) ...
DOI:
10.1073/pnas.92.22.10349
PubMed:
7479782
PubMed Central:
PMC40794

19. In vitro anticomplementary activity of constituents from Morinda morindoides

Author:
Cimanga, K.; Bruyne, T. de.; Lasure, A.; Poel, B. van.; Pieters, L.; Berghe, D. vanden.; Vlietinck, A.; Kambu, K.; Tona, L.
Source:
Journal of natural products 1995 v.58 no.3 pp. 372-378
ISSN:
0163-3864
Subject:
dose response; medicinal plants; Morinda; flavonoids; chemical constituents of plants; medicinal properties; molecular conformation; glycosides; leaves; Democratic Republic of the Congo
DOI:
10.1021/np50117a005
PubMed:
7775983

20. Utilization and management of forest resources in Zaire

Author:
Khasa, P.D.; Vallee, G.; Belanger, J.; Bousquet, J.
Source:
Forestry chronicle 1995 v.71 no.4 pp. 479-488
ISSN:
0015-7546
Subject:
tropical forests; forest resources; forest management; forest policy; deforestation; species diversity; Democratic Republic of the Congo
Abstract:
... Tropical forest biomes are characterized by a high biodiversity. However, this biological complexity is diminishing rapidly. The causes for the decline and deterioration of tropical forests in Zaire were analysed. The main factors causing loss of biodiversity are shifting agriculture, fuelwood consumption, and fires in open forests and savannas. Measures for maintenance of forest biodiversity are ...
DOI:
10.5558/tfc71479-4