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.
This map shows the geographic impact of Mary Tiffen'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 Mary Tiffen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Mary Tiffen more than expected).
This network shows the impact of papers produced by Mary Tiffen. 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 Mary Tiffen. The network helps show where Mary Tiffen may publish in the future.
Co-authorship network of co-authors of Mary Tiffen
This figure shows the co-authorship network connecting the top 25 collaborators of Mary Tiffen.
A scholar is included among the top collaborators of Mary Tiffen 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 Mary Tiffen. Mary Tiffen is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Mortimore, Michael, et al.. (2001). SYNTHESIS OF LONG-TERM CHANGE IN MARADI DEPARTMENT, NIGER, 1960-2000. OpenGrey (Institut de l'Information Scientifique et Technique).11 indexed citations
Tiffen, Mary, et al.. (1994). The environmental impact of the 1991-92 drought on Zambia.7 indexed citations
8.
Mortimore, Michael & Mary Tiffen. (1994). Population Growth and a Sustainable Environment.. Environment Science and Policy for Sustainable Development. 36(8). 12.12 indexed citations
Tiffen, Mary, et al.. (1993). From agro-pastoralism to mixed farming : the evolution of farming systems in Machakos, Kenya, 1930-1990.3 indexed citations
Tiffen, Mary. (1992). Environmental change and dryland management in Machakos district, Kenya 1930-90: farming and incomes systems..2 indexed citations
16.
Tiffen, Mary. (1989). Guidelines for the incorporation of health safeguards into irrigation projects through intersectoral cooperation with special reference to the vector-borne diseases..1 indexed citations
17.
Toulmin, Camilla & Mary Tiffen. (1987). Groundwater management: equity, feasibility and efficiency. CGSPace A Repository of Agricultural Research Outputs (Consultative Group for International Agricultural Research).1 indexed citations
Tiffen, Mary. (1973). Relationships between age, family size, and progressive farming in Moslem Areas of Northern Nigeria. 2(2). 165–172.3 indexed citations
20.
Tiffen, Mary. (1972). The enterprising peasant : a study of the agents of, and constraints on, agricultural development in Gombe Emirate, North Eastern State, Nigeria. Medical Entomology and Zoology.1 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.