D. U. U. Okali

1.2k total citations
36 papers, 850 citations indexed

About

D. U. U. Okali is a scholar working on Nature and Landscape Conservation, Forestry and Plant Science. According to data from OpenAlex, D. U. U. Okali has authored 36 papers receiving a total of 850 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Nature and Landscape Conservation, 12 papers in Forestry and 12 papers in Plant Science. Recurrent topics in D. U. U. Okali's work include African Botany and Ecology Studies (8 papers), Forest ecology and management (7 papers) and Agronomic Practices and Intercropping Systems (6 papers). D. U. U. Okali is often cited by papers focused on African Botany and Ecology Studies (8 papers), Forest ecology and management (7 papers) and Agronomic Practices and Intercropping Systems (6 papers). D. U. U. Okali collaborates with scholars based in Nigeria, Ghana and France. D. U. U. Okali's co-authors include F. E. Fasehun, John B. Hall, Β. T. Kang, B. Duguma, Nicholas C. Songwe, David Whitehead, K. Mulongoy, O. Osonubi, Olusegun Olufemi Awotoye and Fred Lerise and has published in prestigious journals such as Nature, Journal of Ecology and Journal of Applied Ecology.

In The Last Decade

D. U. U. Okali

35 papers receiving 687 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
D. U. U. Okali Nigeria 16 316 281 243 196 144 36 850
James Gambiza South Africa 22 315 1.0× 217 0.8× 579 2.4× 145 0.7× 113 0.8× 49 1.2k
E.N. Chidumayo Zambia 17 332 1.1× 95 0.3× 464 1.9× 226 1.2× 133 0.9× 29 903
Satoru Okubo Japan 18 374 1.2× 261 0.9× 534 2.2× 123 0.6× 84 0.6× 45 1.1k
Hubert de Foresta France 19 238 0.8× 167 0.6× 592 2.4× 277 1.4× 101 0.7× 57 1.2k
Ulrich Stachow Germany 12 201 0.6× 222 0.8× 449 1.8× 40 0.2× 77 0.5× 24 1.1k
G. Schroth Brazil 14 161 0.5× 279 1.0× 229 0.9× 273 1.4× 212 1.5× 23 1.1k
Christo Marais South Africa 15 357 1.1× 133 0.5× 608 2.5× 58 0.3× 69 0.5× 23 1.1k
E. J. Luoga Tanzania 14 245 0.8× 154 0.5× 498 2.0× 258 1.3× 69 0.5× 25 920
Sheunesu Ruwanza South Africa 15 331 1.0× 182 0.6× 414 1.7× 66 0.3× 94 0.7× 56 829
Antonio Gómez Sal Spain 13 185 0.6× 171 0.6× 242 1.0× 60 0.3× 39 0.3× 44 598

Countries citing papers authored by D. U. U. Okali

Since Specialization
Citations

This map shows the geographic impact of D. U. U. Okali's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by D. U. U. Okali with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites D. U. U. Okali more than expected).

Fields of papers citing papers by D. U. U. Okali

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by D. U. U. Okali. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by D. U. U. Okali. The network helps show where D. U. U. Okali may publish in the future.

Co-authorship network of co-authors of D. U. U. Okali

This figure shows the co-authorship network connecting the top 25 collaborators of D. U. U. Okali. A scholar is included among the top collaborators of D. U. U. Okali based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with D. U. U. Okali. D. U. U. Okali is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Okali, D. U. U., et al.. (2006). Forestry education, training and professional development in Africa. The International Forestry Review. 8(1). 118–125. 16 indexed citations
2.
Lerise, Fred, et al.. (2003). Changing rural–urban linkages in Mali, Nigeria and Tanzania. Environment and Urbanization. 15(1). 13–23. 35 indexed citations
3.
Okali, D. U. U.. (1992). Sustainable Use of West African Moist Forest Lands. Biotropica. 24(2). 335–335. 5 indexed citations
4.
Osonubi, O., K. Mulongoy, Olusegun Olufemi Awotoye, M. O. Atayese, & D. U. U. Okali. (1991). Effects of ectomycorrhizal and vesicular-arbuscular mycorrhizal fungi on drought tolerance of four leguminous woody seedlings. Plant and Soil. 136(1). 131–143. 73 indexed citations
5.
Duguma, B., Β. T. Kang, & D. U. U. Okali. (1988). Factors affecting germination of leucaena (Leucaena leucocephala) (Lam) de Wit seed. Seed Science and Technology. 16(2). 489–500. 25 indexed citations
6.
Duguma, B., Β. T. Kang, & D. U. U. Okali. (1988). Effect of pruning intensities of three woody leguminous species grown in alley cropping with maize and cowpea on an alfisol. Agroforestry Systems. 6(1). 19–35. 6 indexed citations
7.
Duguma, B., Β. T. Kang, & D. U. U. Okali. (1988). Effect of pruning intensities of three woody leguminous species grown in alley cropping with maize and cowpea on an alfisol. Agroforestry Systems. 6(1-3). 19–35. 77 indexed citations
8.
Okali, D. U. U., et al.. (1987). Tree population changes in treated rain forest at Omo Forest Reserve, south-western Nigeria. Journal of Tropical Ecology. 3(4). 291–313. 62 indexed citations
9.
Okali, D. U. U., et al.. (1987). Seed cone quality of Nigerian-grown Pinus caribaea var. hondurensis. Forest Ecology and Management. 19(1-4). 41–55. 4 indexed citations
10.
Okali, D. U. U., et al.. (1985). The effect of coppiced teak regrowth on soil in a teak-maize agroforest. Forest Ecology and Management. 12(1). 37–41. 5 indexed citations
11.
Okali, D. U. U.. (1983). Age and growth rate of tropical trees. Forest Ecology and Management. 6(1). 84–85. 3 indexed citations
12.
Whitehead, David, D. U. U. Okali, & F. E. Fasehun. (1981). Stomatal Response to Environmental Variables in Two Tropical Forest Species During the Dry Season in Nigeria. Journal of Applied Ecology. 18(2). 571–571. 80 indexed citations
13.
Okali, D. U. U.. (1980). Estimating water use by tropical forests: an example from a plantation teak forest.. 581–591. 1 indexed citations
14.
Hall, John B. & D. U. U. Okali. (1979). A Structural and Floristic Analysis of Woody Fallow Vegetation Near Ibadan, Nigeria. Journal of Ecology. 67(1). 321–321. 42 indexed citations
15.
16.
Hall, John B. & D. U. U. Okali. (1974). Phenology and Productivity of Pistia stratiotes L. on the Volta Lake, Ghana. Journal of Applied Ecology. 11(2). 709–709. 20 indexed citations
17.
Okali, D. U. U., John B. Hall, & G. W. Lawson. (1973). Root Distribution under a Thicket Clump on the Accra Plains, Ghana: Its Relevance to Clump Localization and Water Relations. Journal of Ecology. 61(2). 439–439. 22 indexed citations
18.
Okali, D. U. U.. (1972). Growth-rates of some West African Forest-tree Seedlings in Shade. Annals of Botany. 36(5). 953–959. 12 indexed citations
19.
Okali, D. U. U.. (1971). Tissue Water Relations of Some Woody Species of the Accra Plains, Ghana. Journal of Ecology. 59(1). 89–89. 14 indexed citations
20.
Okali, D. U. U.. (1971). Rates of Dry-matter Production in Some Tropical Forest-tree Seedlings. Annals of Botany. 35(1). 87–97. 13 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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