Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies
if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the
same subfield and year (this is the minimum needed to enter the top 1%, not the average
within it), or reaches the top citation threshold in at least one of its specific research
topics.
Citations per year, relative to W. R. Siegfried W. R. Siegfried (= 1×)
peers
Peter S. Petraitis
Countries citing papers authored by W. R. Siegfried
Since
Specialization
Citations
This map shows the geographic impact of W. R. Siegfried'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 W. R. Siegfried with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites W. R. Siegfried more than expected).
This network shows the impact of papers produced by W. R. Siegfried. 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 W. R. Siegfried. The network helps show where W. R. Siegfried may publish in the future.
Co-authorship network of co-authors of W. R. Siegfried
This figure shows the co-authorship network connecting the top 25 collaborators of W. R. Siegfried.
A scholar is included among the top collaborators of W. R. Siegfried 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 W. R. Siegfried. W. R. Siegfried 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.
Dean, W. R. J. & W. R. Siegfried. (1997). The protection of endemic and nomadic avian diversity in the Karoo, South Africa. African Journal of Wildlife Research. 27(1). 11–21.5 indexed citations
2.
Siegfried, W. R., et al.. (1995). The protection of biological diversity in South Africa : profiles and perceptions of professional practitioners in nature conservation agencies and natural history museums. African Journal of Wildlife Research. 25(2). 49–56.7 indexed citations
3.
Armstrong, Adrian J. & W. R. Siegfried. (1991). Intra-seasonal variation in clutch size of the Cape shoveller in the south-western Cape : short communication. African Journal of Wildlife Research. 21(3). 94.1 indexed citations
4.
Siegfried, W. R., et al.. (1988). Sex and plumage-type ratios of the Lesser Magellan Goose in southern Chile. Wildfowl (Wildfowl & Wetlands Trust).2 indexed citations
5.
Siegfried, W. R.. (1985). Socially induced suppression of breeding plumage in the Maccoa Duck. Wildfowl (Wildfowl & Wetlands Trust). 36(36). 135–137.2 indexed citations
6.
Siegfried, W. R.. (1981). The incidence of veld-fire in the Etosha National Park, 1970-1979. 1981. 225–230.14 indexed citations
7.
Siegfried, W. R., et al.. (1980). Protea nectar and satellite fauna in relation to the food requirements and pollinating role of the Cape sugarbird.. South African Journal of Science. 76(9). 409–412.29 indexed citations
8.
Ball, I. J., P. G. H. Frost, W. R. Siegfried, & Frank K. McKinney. (1978). Territories and local movements of African Black Ducks. Wildfowl (Wildfowl & Wetlands Trust).19 indexed citations
9.
Siegfried, W. R.. (1977). Notes on behaviour of Ruddy Ducks during the brood period. Wildfowl (Wildfowl & Wetlands Trust). 28(28). 3.4 indexed citations
10.
Kok, O. B., et al.. (1975). SHORT NOTES. Ostrich. 46(3). 258–267.
11.
Siegfried, W. R.. (1974). Brood care, pair bonds and plumage in southern African Anatini. Wildfowl (Wildfowl & Wetlands Trust). 25(25). 33–40.18 indexed citations
12.
Siegfried, W. R.. (1973). Platform-building by male and female Ruddy Ducks. Wildfowl (Wildfowl & Wetlands Trust). 24(24). 150–153.4 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.