James D. Ackerman

6.3k total citations · 2 hit papers
132 papers, 4.9k citations indexed

About

James D. Ackerman is a scholar working on Ecology, Evolution, Behavior and Systematics, Plant Science and Nature and Landscape Conservation. According to data from OpenAlex, James D. Ackerman has authored 132 papers receiving a total of 4.9k indexed citations (citations by other indexed papers that have themselves been cited), including 124 papers in Ecology, Evolution, Behavior and Systematics, 77 papers in Plant Science and 44 papers in Nature and Landscape Conservation. Recurrent topics in James D. Ackerman's work include Plant and animal studies (119 papers), Plant Parasitism and Resistance (46 papers) and Ecology and Vegetation Dynamics Studies (44 papers). James D. Ackerman is often cited by papers focused on Plant and animal studies (119 papers), Plant Parasitism and Resistance (46 papers) and Ecology and Vegetation Dynamics Studies (44 papers). James D. Ackerman collaborates with scholars based in Puerto Rico, United States and Australia. James D. Ackerman's co-authors include Raymond L. Tremblay, A. M. Montalvo, Jess K. Zimmerman, J. Túpac Otero, Paul Bayman, Ricardo N. Calvo, David W. Roubik, Michael R. Mesler, Javier A. Rodríguez‐Robles and Alec M. Pridgeon and has published in prestigious journals such as Ecology, Philosophical Transactions of the Royal Society B Biological Sciences and Annals of the New York Academy of Sciences.

In The Last Decade

James D. Ackerman

124 papers receiving 4.7k citations

Hit Papers

Variation in sexual reproduction in orchids and its evolu... 2004 2026 2011 2018 2004 2023 200 400 600
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. Variation in sexual reproduction in orchids and its evolutionary consequences: a spasmodic journey to diversification
    2004 617 citations Raymond L. Tremblay, James D. Ackerman et al. profile →
  2. Beyond the various contrivances by which orchids are pollinated: global patterns in orchid pollination biology
    2023 62 citations James D. Ackerman, Ryan D. Phillips et al. profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
James D. Ackerman Puerto Rico 39 4.5k 2.7k 1.9k 989 654 132 4.9k
Scott A. Hodges United States 31 3.2k 0.7× 2.2k 0.8× 1.1k 0.6× 1.8k 1.9× 230 0.4× 52 4.4k
Mario Vallejo‐Marín United Kingdom 36 3.2k 0.7× 2.5k 0.9× 1.2k 0.6× 1.4k 1.4× 614 0.9× 97 4.3k
Olle Pellmyr United States 39 4.6k 1.0× 2.8k 1.0× 1.9k 1.0× 911 0.9× 1.3k 1.9× 104 5.6k
Lorne M. Wolfe United States 29 2.3k 0.5× 1.5k 0.6× 1.4k 0.7× 603 0.6× 510 0.8× 57 3.2k
Marlies Sazima Brazil 41 4.6k 1.0× 3.0k 1.1× 1.7k 0.9× 893 0.9× 433 0.7× 152 4.9k
Andrew G. Stephenson United States 51 5.9k 1.3× 5.2k 1.9× 2.8k 1.4× 2.8k 2.8× 1.2k 1.8× 140 8.1k
John D. Nason United States 36 3.5k 0.8× 2.5k 0.9× 1.9k 1.0× 1.1k 1.1× 744 1.1× 84 6.4k
Candace Galen United States 48 5.2k 1.2× 3.9k 1.4× 3.1k 1.6× 1.1k 1.1× 880 1.3× 109 6.3k
Jun Yokoyama Japan 30 2.0k 0.5× 1.2k 0.4× 419 0.2× 1.0k 1.0× 621 0.9× 154 3.1k
Kermit Ritland Canada 36 2.3k 0.5× 1.9k 0.7× 1.3k 0.6× 1.4k 1.4× 261 0.4× 83 4.4k

Countries citing papers authored by James D. Ackerman

Since Specialization
Citations

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

Fields of papers citing papers by James D. Ackerman

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by James D. Ackerman. 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 James D. Ackerman. The network helps show where James D. Ackerman may publish in the future.

Co-authorship network of co-authors of James D. Ackerman

This figure shows the co-authorship network connecting the top 25 collaborators of James D. Ackerman. A scholar is included among the top collaborators of James D. Ackerman 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 James D. Ackerman. James D. Ackerman 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.
Miller, Jacqueline Y., et al.. (2025). Moth‐pollination through the looking glass: Structure of a flower‐settling moth network reveals functional groups. Ecological Entomology. 50(5). 793–806. 1 indexed citations
2.
Ackerman, James D., Ryan D. Phillips, Raymond L. Tremblay, et al.. (2022). Beyond the various contrivances by which orchids are pollinated: global patterns in orchid pollination biology. Zenodo (CERN European Organization for Nuclear Research). 2 indexed citations
3.
Ackerman, James D., et al.. (2021). Future changes in the distribution of two non-indigenous orchids and their acquired enemy in Puerto Rico. Biological Invasions. 23(11). 3545–3563. 5 indexed citations
4.
Scaccabarozzi, Daniela, Bart Muys, Koenraad Van Meerbeek, et al.. (2021). Trick or treat? Pollinator attraction in Vanilla pompona (Orchidaceae). Biotropica. 54(1). 268–274. 18 indexed citations
5.
6.
Ackerman, James D., et al.. (2018). Best in the company of nearby males: female success in the threatened cycad, Zamia portoricensis. PeerJ. 6. e5252–e5252. 7 indexed citations
7.
Ackerman, James D., et al.. (2018). Land use legacy for a tropical myco-heterotroph: how spatial patterns of abundance, reproductive effort and success vary. Journal of Plant Ecology. 12(2). 367–375. 3 indexed citations
8.
Ackerman, James D., et al.. (2017). InvasiveSyzygium jambostrees in Puerto Rico: no refuge from guava rust. Journal of Tropical Ecology. 33(3). 205–212. 5 indexed citations
9.
Ackerman, James D.. (2015). Invasive orchids: weeds we hate to love?. Lankesteriana. 7(1-2). 20 indexed citations
10.
Tremblay, Raymond L., José Raventós, & James D. Ackerman. (2015). When stable-stage equilibrium is unlikely: integrating transient population dynamics improves asymptotic methods. Annals of Botany. 116(3). 381–390. 24 indexed citations
11.
Ackerman, James D.. (2012). Orchids gone wild.. 81(2). 88–93. 5 indexed citations
12.
Ackerman, James D. & W. Mark Whitten. (2009). A NEW SPECIES OF ODONTOGLOSSUM (ORCHIDACEAE: ONCIDIINAE) FROM ECUADOR. Lankesteriana. 9(3). 509–512. 1 indexed citations
13.
Ackerman, James D., et al.. (2008). Oeceoclades maculata, an alien tropical orchid in a Caribbean rainforest. Annals of Botany. 104(3). 557–563. 36 indexed citations
14.
Otero, J. Túpac, James D. Ackerman, & Paul Bayman. (2004). Differences in mycorrhizal preferences between two tropical orchids. Molecular Ecology. 13(8). 2393–2404. 137 indexed citations
15.
Fernández, Denny S., et al.. (2003). Reproductive potential, growth rate and light environment in Lephantes rupestris Stimson. Lankesteriana. 73–76. 1 indexed citations
16.
Lasso, Eloisa & James D. Ackerman. (2003). Flowering phenology of Werauhia sintenisii, a bromeliad from the dwarf montane forest in Puerto Rico: An indicator of climate change?. 24(1). 95–10421. 15 indexed citations
17.
Ackerman, James D., et al.. (2001). Biogeography of the Antilles based on a parsimony analysis of orchid distributions. Journal of Biogeography. 28(6). 775–794. 68 indexed citations
18.
Ackerman, James D., et al.. (1993). Variation in the floral fragrance of Epidendrum ciliare (Orchidaceae). Nordic Journal of Botany. 13(1). 41–47. 70 indexed citations
19.
Ackerman, James D., et al.. (1990). Epiphyte roots: anatomical correlates to environmental parameters in Puerto Rican orchids. 12(1). 105–116. 4 indexed citations
20.
Ackerman, James D. & Norris H. Williams. (1981). POLLEN MORPHOLOGY OF THE CHLORAEINAE (ORCHIDACEAE: DIURIDEAE) AND RELATED SUBTRIBES. American Journal of Botany. 68(10). 1392–1402. 16 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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