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 C. Opio'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 C. Opio with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites C. Opio more than expected).
This network shows the impact of papers produced by C. Opio. 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 C. Opio. The network helps show where C. Opio may publish in the future.
Co-authorship network of co-authors of C. Opio
This figure shows the co-authorship network connecting the top 25 collaborators of C. Opio.
A scholar is included among the top collaborators of C. Opio 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 C. Opio. C. Opio is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Uwizeye, Aimable, Pierre Gerber, C. Opio, et al.. (2018). The role of globalizing livestock supply chains in the disruption of global nitrogen cycles. AGU Fall Meeting Abstracts. 2018.2 indexed citations
Vellinga, Th.V., et al.. (2014). Global asessment of manure management policies and practices. Socio-Environmental Systems Modeling.14 indexed citations
Gerber, P., Rome . Animal Production Fao, H. Steinfeld, et al.. (2013). Tackling climate change through livestock.73 indexed citations
8.
Opio, C., P. Gerber, Anne Mottet, et al.. (2013). Greenhouse gas emissions from ruminant supply chains – a global life cycle assessment.317 indexed citations
9.
MacLeod, Michael, Pierre Gerber, Anne Mottet, et al.. (2013). Greenhouse gas emissions from pig and chicken supply chains – a global life cycle assessment.139 indexed citations
Steinfeld, H., Pierre Gerber, C. Opio, et al.. (2010). Responses on environmental issues.. 311–322.1 indexed citations
15.
Haan, C. de, Pierre Gerber, & C. Opio. (2010). Structural change in the livestock sector.. 35–50.13 indexed citations
16.
Opio, C., H. Steinfeld, Abel Lufafa, et al.. (2010). Global demand and trade in livestock and livestock products in a globalizing world.. 25–34.1 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.