Helmut Hemmer

1.4k total citations
46 papers, 766 citations indexed

About

Helmut Hemmer is a scholar working on Ecology, Ecology, Evolution, Behavior and Systematics and Paleontology. According to data from OpenAlex, Helmut Hemmer has authored 46 papers receiving a total of 766 indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Ecology, 14 papers in Ecology, Evolution, Behavior and Systematics and 12 papers in Paleontology. Recurrent topics in Helmut Hemmer's work include Wildlife Ecology and Conservation (15 papers), Evolution and Paleontology Studies (11 papers) and Animal Ecology and Behavior Studies (9 papers). Helmut Hemmer is often cited by papers focused on Wildlife Ecology and Conservation (15 papers), Evolution and Paleontology Studies (11 papers) and Animal Ecology and Behavior Studies (9 papers). Helmut Hemmer collaborates with scholars based in Germany, United States and United Kingdom. Helmut Hemmer's co-authors include Ralf‐Dietrich Kahlke, Abesalom Vekua, Joachim Bürger, David S. Woodruff, Georgina M. Mace, Ulysses S. Seal, Alan R. Templeton, William M. Shields, Richard Frankham and Neil Murray and has published in prestigious journals such as SHILAP Revista de lepidopterología, Cellular and Molecular Life Sciences and Quaternary Science Reviews.

In The Last Decade

Helmut Hemmer

40 papers receiving 652 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Helmut Hemmer Germany 13 447 345 238 238 133 46 766
Gertrud E. Rößner Germany 17 514 1.1× 667 1.9× 203 0.9× 194 0.8× 266 2.0× 47 995
Fritz Hertel United States 13 360 0.8× 267 0.8× 70 0.3× 87 0.4× 186 1.4× 14 600
J. Meester South Africa 14 541 1.2× 265 0.8× 47 0.2× 196 0.8× 370 2.8× 41 841
Mieczysław Wolsan Poland 19 709 1.6× 723 2.1× 135 0.6× 391 1.6× 274 2.1× 37 1.3k
Pablo E. Ortíz Argentina 16 485 1.1× 630 1.8× 98 0.4× 134 0.6× 308 2.3× 77 801
Hannah J. O’Regan United Kingdom 18 406 0.9× 515 1.5× 488 2.1× 93 0.4× 75 0.6× 39 894
David W. Macdonald United Kingdom 7 581 1.3× 208 0.6× 70 0.3× 140 0.6× 176 1.3× 9 746
David A. Flores Argentina 22 454 1.0× 813 2.4× 199 0.8× 86 0.4× 358 2.7× 58 1.0k
Carmela Serio Italy 16 173 0.4× 374 1.1× 189 0.8× 96 0.4× 135 1.0× 46 668
Silvia Puig Argentina 16 532 1.2× 185 0.5× 74 0.3× 67 0.3× 125 0.9× 40 663

Countries citing papers authored by Helmut Hemmer

Since Specialization
Citations

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

Fields of papers citing papers by Helmut Hemmer

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Helmut Hemmer

This figure shows the co-authorship network connecting the top 25 collaborators of Helmut Hemmer. A scholar is included among the top collaborators of Helmut Hemmer 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 Helmut Hemmer. Helmut Hemmer 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
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Chimento, Nicolás R., et al.. (2014). Puma (Herpailurus) pumoides (Castellanos, 1958) nov. comb: Comentarios sistemáticos y registro fósil. 30(2). 92–134. 5 indexed citations
4.
Aryal, Achyut, Tej Kumar Shrestha, William H. Frey, et al.. (2011). Call to Conserve the Wild Water Buffalo (Bubalus Arnee) in Nepal. SHILAP Revista de lepidopterología. 8 indexed citations
5.
Hemmer, Helmut, Ralf‐Dietrich Kahlke, & Abesalom Vekua. (2011). The cheetah Acinonyx pardinensis (Croizet et Jobert, 1828) s.l. at the hominin site of Dmanisi (Georgia) – A potential prime meat supplier in Early Pleistocene ecosystems. Quaternary Science Reviews. 30(19-20). 2703–2714. 39 indexed citations
6.
Bürger, Joachim, Wilfried Rosendahl, Odile Loreille, et al.. (2003). Molecular phylogeny of the extinct cave lion Panthera leo spelaea. Molecular Phylogenetics and Evolution. 30(3). 841–849. 131 indexed citations
7.
Hemmer, Helmut, Ralf‐Dietrich Kahlke, & T. Keller. (2003). Panthera onca gombaszoegensis (Kretzoi, 1938) from the Early Middle Pleistocene Mosbach Sands (Wiesbaden, Hessen, Germany) – A contribution to the knowledge of the variability and history of the dispersal of the jaguar. Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 229(1). 31–60. 20 indexed citations
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Templeton, Alan R., Helmut Hemmer, Georgina M. Mace, et al.. (1986). Local adaptation, coadaptation, and population boundaries. Zoo Biology. 5(2). 115–125. 99 indexed citations
10.
Frankham, Richard, Helmut Hemmer, Oliver A. Ryder, et al.. (1986). Selection in captive populations. Zoo Biology. 5(2). 127–138. 101 indexed citations
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Hemmer, Helmut, et al.. (1981). The Balearic toad (Bufo viridis balearicus (BOETTGER, 1881)), human bronze age culture, and Mediterranean biogeography. Amphibia-Reptilia. 2(3). 217–230. 11 indexed citations
13.
Hemmer, Helmut, et al.. (1980). Studien am Wasserfrosch - Rana perezi (Seoane, 1885) - der Balearen (Amphibia, Anura, Ranidae). Biblioteca Digital de les Illes Balears (Universitat de les Illes Balears). 24(24). 55–70. 1 indexed citations
14.
Hemmer, Helmut. (1979). The origin of weaponry in higher Primates: comments on the weapon use - weapon mimicry discussion by Randall L. Eaton. 2144.
15.
Hemmer, Helmut, et al.. (1975). Breeding Geoffroy's cat in captivity. International Zoo Yearbook. 15(1). 152–154. 1 indexed citations
16.
Hemmer, Helmut. (1971). Intraspezifische Unterschiede der relativen Hirngrösse beim Löwen (Panthera leo L.). Cellular and Molecular Life Sciences. 27(12). 1500–1501. 1 indexed citations
17.
Hemmer, Helmut, et al.. (1970). Zum Beutefangverhalten des Tokehs (Gekko gecko L.). Zeitschrift für Tierpsychologie. 27(5). 591–609.
18.
Schipp, R., et al.. (1968). [Comparative light and electron microscopy on chordoma of hybrid bufo larvae].. PubMed. 138(1). 109–33. 1 indexed citations
19.
Hemmer, Helmut, et al.. (1968). Analyse des akustischen Geschlechtererkennungsmechanismus (Befreiungsrufe) bei Kröten (GenusBufo). Cellular and Molecular Life Sciences. 24(3). 285–286. 5 indexed citations
20.
Hemmer, Helmut. (1964). Zur Systematik und Stammesgeschichte der Pantherkatzen (Pantherinae). Die Naturwissenschaften. 51(24). 643–643. 5 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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