John Lehnhardt

878 total citations
15 papers, 650 citations indexed

About

John Lehnhardt is a scholar working on Genetics, Agronomy and Crop Science and Small Animals. According to data from OpenAlex, John Lehnhardt has authored 15 papers receiving a total of 650 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Genetics, 8 papers in Agronomy and Crop Science and 7 papers in Small Animals. Recurrent topics in John Lehnhardt's work include Genetic and phenotypic traits in livestock (8 papers), Reproductive Physiology in Livestock (7 papers) and Animal Behavior and Welfare Studies (7 papers). John Lehnhardt is often cited by papers focused on Genetic and phenotypic traits in livestock (8 papers), Reproductive Physiology in Livestock (7 papers) and Animal Behavior and Welfare Studies (7 papers). John Lehnhardt collaborates with scholars based in United States, Germany and South Africa. John Lehnhardt's co-authors include Janine L. Brown, Dennis Schmitt, Laura H. Graham, Richard J. Montali, Thomas B. Hildebrandt, Christen Wemmer, Donald J. Alcendor, Gary S. Hayward, Richard L. Garber and Melissa Kennedy and has published in prestigious journals such as Science, PLoS ONE and Biology of Reproduction.

In The Last Decade

John Lehnhardt

15 papers receiving 626 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
John Lehnhardt United States 12 271 256 230 183 114 15 650
M.R. Jainudeen Malaysia 13 234 0.9× 279 1.1× 281 1.2× 224 1.2× 13 0.1× 49 699
Jenny G. Powers United States 18 69 0.3× 111 0.4× 381 1.7× 233 1.3× 53 0.5× 45 1.4k
D. Vankan Australia 15 108 0.4× 435 1.7× 132 0.6× 79 0.4× 9 0.1× 43 614
M.A. Barone United States 6 123 0.5× 112 0.4× 131 0.6× 93 0.5× 49 0.4× 10 426
Sergey V. Naidenko Russia 14 185 0.7× 151 0.6× 106 0.5× 307 1.7× 34 0.3× 70 583
Barbara Craig United Kingdom 15 297 1.1× 71 0.3× 14 0.1× 233 1.3× 21 0.2× 21 564
Sarah Zito Australia 15 216 0.8× 374 1.5× 36 0.2× 108 0.6× 11 0.1× 27 531
Nei Moreira Brazil 10 218 0.8× 109 0.4× 114 0.5× 143 0.8× 21 0.2× 34 489
Karen Bauman United States 12 154 0.6× 159 0.6× 116 0.5× 204 1.1× 20 0.2× 33 492
Stuart Williams United Kingdom 7 31 0.1× 118 0.5× 55 0.2× 172 0.9× 51 0.4× 9 445

Countries citing papers authored by John Lehnhardt

Since Specialization
Citations

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

Fields of papers citing papers by John Lehnhardt

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of John Lehnhardt

This figure shows the co-authorship network connecting the top 25 collaborators of John Lehnhardt. A scholar is included among the top collaborators of John Lehnhardt 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 John Lehnhardt. John Lehnhardt is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

15 of 15 papers shown
1.
Spallek, Jacob, Anna Reeske, Marie Nørredam, et al.. (2014). Suicide among immigrants in Europe--a systematic literature review. European Journal of Public Health. 25(1). 63–71. 68 indexed citations
2.
Morfeld, Kari A., et al.. (2014). Development of a Body Condition Scoring Index for Female African Elephants Validated by Ultrasound Measurements of Subcutaneous Fat. PLoS ONE. 9(4). e93802–e93802. 38 indexed citations
3.
Kuhar, C.W., et al.. (2009). A system for monitoring and improving animal visibility and its implications for zoological parks. Zoo Biology. 29(1). 68–79. 11 indexed citations
4.
Leighty, Katherine A., et al.. (2008). GPS determination of walking rates in captive African elephants (Loxodonta africana). Zoo Biology. 28(1). 16–28. 29 indexed citations
5.
Lehnhardt, John, et al.. (2008). Carrots and sticks, people and elephants : rank, domination, and training. 167–182. 3 indexed citations
6.
Mellen, Jill D., Gary W. Miller, John Lehnhardt, et al.. (2004). Comparison of two introduction methods for African elephants (Loxodonta africana). Zoo Biology. 23(2). 109–126. 25 indexed citations
7.
Brown, Janine L., Frank Göritz, Robert Hermes, et al.. (2004). Successful artificial insemination of an Asian elephant at the National Zoological Park. Zoo Biology. 23(1). 45–63. 55 indexed citations
8.
Pratt, Nancy C., et al.. (2000). Assessment of health and reproductive status in African and Asian elephants by transrectal ultrasonography. 6 indexed citations
9.
Richman, Laura K., Richard J. Montali, Richard L. Garber, et al.. (1999). Novel Endotheliotropic Herpesviruses Fatal for Asian and African Elephants. Science. 283(5405). 1171–1176. 150 indexed citations
10.
Brown, Janine L., et al.. (1999). Hormone secretion in the Asian elephant (Elephas maximus): characterization of ovulatory and anovulatory LH surges. Smithsonian Digital Repository (Smithsonian Institution). 12 indexed citations
11.
Brown, Janine L., et al.. (1999). Hormone Secretion in the Asian Elephant (Elephas maximus): Characterizationof Ovulatory and Anovulatory Luteinizing Hormone Surges. Biology of Reproduction. 61(5). 1294–1299. 99 indexed citations
12.
Savage, Anne, Kirsten M. Leong, D. Grobler, et al.. (1999). Circulating levels of ?-tocopherol and retinol in free-ranging African elephants (Loxodonta africana). Zoo Biology. 18(4). 319–323. 7 indexed citations
13.
14.
Brown, Janine L., Christen Wemmer, & John Lehnhardt. (1995). Urinary cortisol analysis for monitoring adrenal activity in elephants. Zoo Biology. 14(6). 533–542. 52 indexed citations
15.
Brown, Janine L. & John Lehnhardt. (1995). Serum and urinary hormones during pregnancy and the peri‐ and postpartum period in an Asian elephant (Elephas, maximus). Zoo Biology. 14(6). 555–564. 62 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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