Robert Walker

5.2k total citations
87 papers, 3.5k citations indexed

About

Robert Walker is a scholar working on Global and Planetary Change, Economics and Econometrics and General Agricultural and Biological Sciences. According to data from OpenAlex, Robert Walker has authored 87 papers receiving a total of 3.5k indexed citations (citations by other indexed papers that have themselves been cited), including 68 papers in Global and Planetary Change, 27 papers in Economics and Econometrics and 25 papers in General Agricultural and Biological Sciences. Recurrent topics in Robert Walker's work include Conservation, Biodiversity, and Resource Management (60 papers), Agriculture, Land Use, Rural Development (24 papers) and Land Rights and Reforms (23 papers). Robert Walker is often cited by papers focused on Conservation, Biodiversity, and Resource Management (60 papers), Agriculture, Land Use, Rural Development (24 papers) and Land Rights and Reforms (23 papers). Robert Walker collaborates with scholars based in United States, Brazil and Puerto Rico. Robert Walker's co-authors include Stephen G. Perz, Marcellus M. Caldas, Cynthia Simmons, Stephen Aldrich, Eugênio Arima, Eugênio Arima, A. K. O. Homma, Alexander Pfaff, William Solecki and Ritaumaria Pereira and has published in prestigious journals such as Proceedings of the National Academy of Sciences, SHILAP Revista de lepidopterología and PLoS ONE.

In The Last Decade

Robert Walker

86 papers receiving 3.2k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Robert Walker United States 34 2.6k 865 757 568 552 87 3.5k
Stephen G. Perz United States 34 2.8k 1.1× 889 1.0× 689 0.9× 561 1.0× 683 1.2× 110 4.0k
William D. Sunderlin Indonesia 32 3.1k 1.2× 775 0.9× 942 1.2× 446 0.8× 491 0.9× 74 3.9k
Marcellus M. Caldas United States 26 1.7k 0.7× 686 0.8× 492 0.6× 377 0.7× 476 0.9× 83 2.7k
Ashwini Chhatre United States 28 3.1k 1.2× 622 0.7× 875 1.2× 392 0.7× 646 1.2× 68 4.5k
Oliver T. Coomes Canada 37 2.9k 1.1× 1.1k 1.3× 735 1.0× 628 1.1× 771 1.4× 115 5.0k
David Kaimowitz Indonesia 22 2.0k 0.8× 576 0.7× 783 1.0× 319 0.6× 329 0.6× 81 2.9k
Susanna B. Hecht United States 30 2.2k 0.9× 1.5k 1.7× 448 0.6× 445 0.8× 583 1.1× 83 4.2k
Thomas Sikor United Kingdom 32 2.2k 0.9× 1.2k 1.4× 380 0.5× 738 1.3× 385 0.7× 66 3.9k
Margaret B. Holland United States 17 1.9k 0.7× 378 0.4× 730 1.0× 279 0.5× 652 1.2× 27 2.6k
Raoni Rajão Brazil 25 1.7k 0.6× 469 0.5× 632 0.8× 272 0.5× 430 0.8× 66 2.7k

Countries citing papers authored by Robert Walker

Since Specialization
Citations

This map shows the geographic impact of Robert Walker'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 Robert Walker with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Robert Walker more than expected).

Fields of papers citing papers by Robert Walker

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Robert Walker. 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 Robert Walker. The network helps show where Robert Walker may publish in the future.

Co-authorship network of co-authors of Robert Walker

This figure shows the co-authorship network connecting the top 25 collaborators of Robert Walker. A scholar is included among the top collaborators of Robert Walker 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 Robert Walker. Robert Walker 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.
Walker, Robert, et al.. (2025). Biocultural Geographies: Stewardship, Indigenous Territories, and Conservation in Ecuador’s Amazon. Annals of the American Association of Geographers. 115(10). 2483–2501.
2.
Walker, Robert, et al.. (2023). Xylem Traumatic Resin Duct Formation in Response to Stem Fungal Inoculation in Douglas-Fir and Lodgepole Pine. Forests. 14(3). 502–502. 2 indexed citations
3.
Walker, Robert. (2022). Tapajós. GeoHumanities. 9(1). 122–139. 1 indexed citations
4.
Vittor, Amy Y., Gabriel Zorello Laporta, Maria Anice Mureb Sallum, & Robert Walker. (2021). The COVID-19 crisis and Amazonia’s indigenous people: Implications for conservation and global health. World Development. 145. 105533–105533. 11 indexed citations
5.
Aldrich, Stephen, et al.. (2020). Agronomic or contentious land change? A longitudinal analysis from the Eastern Brazilian Amazon. PLoS ONE. 15(1). e0227378–e0227378. 7 indexed citations
6.
Pfaff, Alexander, Juan Robalino, Eustáquio J. Reis, et al.. (2017). Roads & SDGs, tradeoffs and synergies: learning from Brazil's Amazon in distinguishing frontiers. SHILAP Revista de lepidopterología. 4 indexed citations
7.
Walker, Robert & Jason K. Blackburn. (2015). Biothreat Reduction and Economic Development: The Case of Animal Husbandry in Central Asia. Frontiers in Public Health. 3. 270–270. 6 indexed citations
8.
Walker, Robert, Eugênio Arima, Joseph P. Messina, et al.. (2013). Modeling spatial decisions with graph theory: logging roads and forest fragmentation in the Brazilian Amazon. Ecological Applications. 23(1). 239–254. 26 indexed citations
9.
Arima, Eugênio, et al.. (2013). Spontaneous Colonization and Forest Fragmentation in the Central Amazon Basin. Annals of the Association of American Geographers. 103(6). 1485–1501. 15 indexed citations
10.
Walker, Robert. (2011). The Impact of Brazilian Biofuel Production on Amazônia. Annals of the Association of American Geographers. 101(4). 929–938. 21 indexed citations
11.
Walker, Robert, Cynthia Simmons, Stephen Aldrich, et al.. (2011). The Amazonian Theater of Cruelty. Annals of the Association of American Geographers. 101(5). 1156–1170. 9 indexed citations
12.
Aldrich, Stephen, Robert Walker, Cynthia Simmons, Marcellus M. Caldas, & Stephen G. Perz. (2011). Contentious Land Change in the Amazon's Arc of Deforestation. Annals of the Association of American Geographers. 102(1). 103–128. 92 indexed citations
13.
Simmons, Cynthia, Robert Walker, Eugênio Arima, Stephen Aldrich, & Marcellus M. Caldas. (2007). The Amazon Land War in the South of Pará. Annals of the Association of American Geographers. 97(3). 567–592. 71 indexed citations
14.
Simmons, Cynthia, Robert Walker, Eugênio Arima, Stephen Aldrich, & Marcellus M. Caldas. (2007). Amazon Land Wars in the South of Para. Annals of the Association of American Geographers. 97(3). 2 indexed citations
15.
Walker, Robert, Lesley Hoggart, Gayle Hamilton, & Susan Blank. (2006). Making random assignment happen: evidence from the UK Employment Retention and Advancement (ERA) demonstration. 12 indexed citations
16.
Aldrich, Stephen, Robert Walker, Eugênio Arima, et al.. (2006). Land‐Cover and Land‐Use Change in the Brazilian Amazon: Smallholders, Ranchers, and Frontier Stratification. Economic Geography. 82(3). 265–288. 84 indexed citations
17.
Arima, Eugênio, Robert Walker, Stephen G. Perz, & Marcellus M. Caldas. (2005). Loggers and Forest Fragmentation: Behavioral Models of Road Building in the Amazon Basin. Annals of the Association of American Geographers. 95(3). 525–541. 85 indexed citations
18.
Walker, Robert. (2003). Mapping Process to Pattern in the Landscape Change of the Amazonian Frontier. Annals of the Association of American Geographers. 93(2). 376–398. 102 indexed citations
19.
Nepstad, Daniel C., Carlos Augusto Klink, Ima Célia Guimarães Vieira, et al.. (1997). Land-use in Amazonia and the cerrado of Brasil.. Americanae (AECID Library). 49. 73–86. 41 indexed citations
20.
Walker, Robert, et al.. (1989). DYNAMIC SETTLEMENT PROCESSES: THE CASE OF US IMMIGRATION∗. The Professional Geographer. 41(2). 172–183. 35 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Stephen G. Perz Breakdown of academic impact, for papers by William D. Sunderlin Breakdown of academic impact, for papers by Marcellus M. Caldas Breakdown of academic impact, for papers by Ashwini Chhatre Breakdown of academic impact, for papers by Oliver T. Coomes Breakdown of academic impact, for papers by David Kaimowitz Breakdown of academic impact, for papers by Susanna B. Hecht Breakdown of academic impact, for papers by Thomas Sikor Breakdown of academic impact, for papers by Margaret B. Holland Breakdown of academic impact, for papers by Raoni Rajão
Rankless by CCL
2026