Mark L. Shaffer

4.1k total citations · 1 hit paper
22 papers, 2.4k citations indexed

About

Mark L. Shaffer is a scholar working on Ecology, Ecological Modeling and Nature and Landscape Conservation. According to data from OpenAlex, Mark L. Shaffer has authored 22 papers receiving a total of 2.4k indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Ecology, 9 papers in Ecological Modeling and 8 papers in Nature and Landscape Conservation. Recurrent topics in Mark L. Shaffer's work include Species Distribution and Climate Change (9 papers), Ecology and Vegetation Dynamics Studies (8 papers) and Rangeland and Wildlife Management (6 papers). Mark L. Shaffer is often cited by papers focused on Species Distribution and Climate Change (9 papers), Ecology and Vegetation Dynamics Studies (8 papers) and Rangeland and Wildlife Management (6 papers). Mark L. Shaffer collaborates with scholars based in United States, Australia and Canada. Mark L. Shaffer's co-authors include Fred B. Samson, James M. Scott, Craig Groves, Deborah B. Jensen, Mark Anderson, Kent H. Redford, Jeffrey V. Baumgartner, Jonathan Higgins, Michael W. Beck and Lynn A. Maguire and has published in prestigious journals such as Science, The American Naturalist and Conservation Biology.

In The Last Decade

Mark L. Shaffer

20 papers receiving 2.0k citations

Hit Papers

Minimum Population Sizes for Species Conservation 1981 2026 1996 2011 1981 400 800 1.2k
What are hit papers?

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.

  1. Minimum Population Sizes for Species Conservation
    1981 1.4k citations Mark L. Shaffer BioScience profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Mark L. Shaffer United States 13 1.4k 1.2k 605 506 465 22 2.4k
David W. Mehlman United States 17 1.7k 1.2× 1.1k 0.9× 591 1.0× 611 1.2× 412 0.9× 33 2.4k
Raphael D. Sagarin United States 17 1.4k 1.0× 695 0.6× 1.1k 1.8× 661 1.3× 483 1.0× 32 2.9k
Lincoln Fishpool United Kingdom 19 1.3k 0.9× 794 0.7× 820 1.4× 823 1.6× 511 1.1× 52 2.9k
M. Sanjayan United States 12 1.1k 0.8× 737 0.6× 585 1.0× 415 0.8× 414 0.9× 16 1.9k
Justin Gerlach United Kingdom 17 1.1k 0.8× 1.1k 1.0× 946 1.6× 782 1.5× 705 1.5× 55 2.8k
D. B. A. Thompson United Kingdom 29 1.6k 1.2× 915 0.8× 742 1.2× 401 0.8× 750 1.6× 55 2.9k
J. Verboom Netherlands 21 1.1k 0.8× 876 0.8× 702 1.2× 496 1.0× 303 0.7× 53 1.9k
Rachel M. Quinn United Kingdom 13 1.3k 0.9× 1.7k 1.5× 486 0.8× 1.2k 2.3× 853 1.8× 15 2.7k
R. Hengeveld Netherlands 18 1.0k 0.7× 963 0.8× 426 0.7× 421 0.8× 686 1.5× 51 2.5k
Andy Symes United Kingdom 8 1.6k 1.1× 736 0.6× 674 1.1× 545 1.1× 375 0.8× 8 2.4k

Countries citing papers authored by Mark L. Shaffer

Since Specialization
Citations

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

Fields of papers citing papers by Mark L. Shaffer

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Mark L. Shaffer. 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 Mark L. Shaffer. The network helps show where Mark L. Shaffer may publish in the future.

Co-authorship network of co-authors of Mark L. Shaffer

This figure shows the co-authorship network connecting the top 25 collaborators of Mark L. Shaffer. A scholar is included among the top collaborators of Mark L. Shaffer 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 Mark L. Shaffer. Mark L. Shaffer 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.
Aycrigg, Jocelyn L., Craig Groves, Jodi Hilty, et al.. (2016). Completing the System: Opportunities and Challenges for a National Habitat Conservation System. BioScience. 66(9). 774–784. 23 indexed citations
2.
Noon, Barry R., Dennis D. Murphy, Steven R. Beissinger, Mark L. Shaffer, & Dominick A. DellaSala. (2003). Conservation Planning for US National Forests: Conducting Comprehensive Biodiversity Assessments. BioScience. 53(12). 1217–1217. 32 indexed citations
3.
Snape, William J., et al.. (2002). Population Viability Analysis and Conservation Policy. eYLS (Yale Law School). 27 indexed citations
4.
Groves, Craig, Deborah B. Jensen, Kent H. Redford, et al.. (2002). Planning for Biodiversity Conservation: Putting Conservation Science into Practice. BioScience. 52(6). 499–499. 410 indexed citations
5.
Shaffer, Mark L., James M. Scott, & Francis X. M. Casey. (2002). Noah's Options: Initial Cost Estimates of a National System of Habitat Conservation Areas in the United States. BioScience. 52(5). 439–439. 38 indexed citations
6.
Miller, George L., et al.. (2001). The Archaeology of 19th-Century Farmsteads: The Results of a Workshop Held at the 1997 Annual Meeting of the Council for Northeast Historical Archaeology. Northeast Historical Archaeology. 31(1). 9–14. 2 indexed citations
7.
Shaffer, Mark L., et al.. (2001). Proactive, State-Based, Incentive-Driven Policy for Habitat Conservation. eScholarship (California Digital Library). 1 indexed citations
8.
Shaffer, Mark L.. (1999). Yellowstone Grizzly Population. Science. 284(5413). 433–433. 1 indexed citations
9.
Shaffer, Mark L.. (1990). Population Viability Analysis. Conservation Biology. 4(1). 39–40. 102 indexed citations
10.
Maguire, Lynn A., et al.. (1988). BLACK-FOOTED FERRET RECOVERY IN MONTANA: A DECISION ANALYSIS. 5 indexed citations
11.
Shaffer, Mark L., et al.. (1988). Final Phase III Investigations of the Whitten Road Site 7NC-D-100, Whitten or Walther Road, County Road 346, New Castle County, Delaware. 3 indexed citations
12.
Shaffer, Mark L. & Kathryn A. Saterson. (1987). The Biological Diversity Program of the US. Agency for International Development. Conservation Biology. 1(4). 280–286. 9 indexed citations
13.
Harris, Richard B., Lynn A. Maguire, & Mark L. Shaffer. (1987). Sample Sizes for Minimum Viable Population Estimation. Conservation Biology. 1(1). 72–76. 54 indexed citations
14.
Shaffer, Mark L. & Fred B. Samson. (1985). Population Size and Extinction: A Note on Determining Critical Population Sizes. The American Naturalist. 125(1). 144–152. 133 indexed citations
15.
Shaffer, Mark L.. (1985). The metapopulation and species conservation: The special case of the northern spotted owl. 16 indexed citations
16.
Custer, Jay F., et al.. (1985). Phase I & II Archaeological Research of the Proposed Bridge 260 Replacement, County Road 346, Whitten or Walther Road, New Castle County, Delaware.
17.
Erwin, R. Michael, et al.. (1984). Colonial bird monitoring: A strategy for regional and national evaluation. 12(1). 342–357. 2 indexed citations
18.
Shaffer, Mark L.. (1983). Determining Minimum Viable Population Sizes for the Grizzly Bear. Bears Their Biology and Management. 5. 133–133. 63 indexed citations
19.
Shaffer, Mark L.. (1981). Minimum Population Sizes for Species Conservation. BioScience. 31(2). 131–134. 1378 indexed citations breakdown →
20.
Shaffer, Mark L., et al.. (1975). Biogeography of the Megazoo. Science. 189(4196). 13–17. 48 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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