Jürgen Haffer

3.9k total citations · 1 hit paper
49 papers, 2.9k citations indexed

About

Jürgen Haffer is a scholar working on Ecology, Nature and Landscape Conservation and Ecology, Evolution, Behavior and Systematics. According to data from OpenAlex, Jürgen Haffer has authored 49 papers receiving a total of 2.9k indexed citations (citations by other indexed papers that have themselves been cited), including 28 papers in Ecology, 26 papers in Nature and Landscape Conservation and 18 papers in Ecology, Evolution, Behavior and Systematics. Recurrent topics in Jürgen Haffer's work include Ecology and Vegetation Dynamics Studies (21 papers), Plant and animal studies (17 papers) and Avian ecology and behavior (13 papers). Jürgen Haffer is often cited by papers focused on Ecology and Vegetation Dynamics Studies (21 papers), Plant and animal studies (17 papers) and Avian ecology and behavior (13 papers). Jürgen Haffer collaborates with scholars based in United States, Germany and Colombia. Jürgen Haffer's co-authors include Ghillean Τ. Prance, Beryl B. Simpson, John M. Bates, John W. Fitzpatrick, Matthias Glaubrecht and E. Charles Nelson and has published in prestigious journals such as Science, The Auk and American Museum Novitates.

In The Last Decade

Jürgen Haffer

43 papers receiving 2.5k citations

Hit Papers

align trajectories

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.

Speciation in Amazonian Forest Birds

1969 1.6k citations Jürgen Haffer profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Jürgen Haffer United States	18	1.2k	1.2k	886	861	809	49	2.9k
Ben G. Holt United Kingdom	16	1.1k 0.9×	991 0.8×	547 0.6×	967 1.1×	459 0.6×	24	2.7k
Helen F. James United States	31	578 0.5×	1.0k 0.9×	1.1k 1.2×	1.7k 1.9×	955 1.2×	100	3.5k
Albert B. Phillimore United Kingdom	34	1.1k 0.9×	1.4k 1.2×	1.3k 1.5×	1.4k 1.6×	923 1.1×	55	3.6k
Jeremy D. Holloway United Kingdom	32	1.5k 1.3×	2.4k 2.1×	1.9k 2.2×	952 1.1×	549 0.7×	94	4.6k
Valerio Sbordoni Italy	31	574 0.5×	945 0.8×	1.3k 1.4×	731 0.8×	445 0.6×	128	2.5k
Lee Hsiang Liow Norway	29	750 0.6×	786 0.7×	639 0.7×	1.2k 1.4×	1.2k 1.5×	74	3.1k
Harold K. Voris United States	29	1.0k 0.9×	1.1k 0.9×	1.1k 1.3×	1.4k 1.6×	436 0.5×	98	4.0k
Cristina Yumi Miyaki Brazil	31	1.2k 1.0×	1.1k 0.9×	1.6k 1.8×	881 1.0×	790 1.0×	96	3.0k
Brett R. Riddle United States	33	800 0.7×	1.1k 1.0×	1.9k 2.1×	1.3k 1.5×	855 1.1×	74	3.6k
Lawrence R. Heaney United States	35	902 0.8×	1.9k 1.6×	1.1k 1.3×	2.7k 3.2×	2.0k 2.4×	135	5.0k

Countries citing papers authored by Jürgen Haffer

Since Specialization

Citations

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

Fields of papers citing papers by Jürgen Haffer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Jürgen Haffer

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

All Works

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20 of 20 papers shown

1.

Haffer, Jürgen, et al.. (2017). On birds from northern Colombia. Revista de Biología Tropical. 13(1). 29–53. 1 indexed citations

2.

Haffer, Jürgen. (2008). Hypotheses to explain the origin of species in Amazonia. Brazilian Journal of Biology. 68(4 suppl). 917–947. 179 indexed citations

3.

Bates, John M., et al.. (2004). Avian mitochondrial DNA sequence divergence across a headwater stream of the Rio Tapajós, a major Amazonian river. Journal für Ornithologie. 145(3). 199–205. 67 indexed citations

4.

Haffer, Jürgen. (2003). Christian Ludwig Brehm (1787–1864) über Spezies und Subspezies von Vögeln. Journal für Ornithologie. 144(2). 129–147. 1 indexed citations

5.

Haffer, Jürgen. (2003). Avian zoogeography, speciation and museum tradition. Biodiversity Heritage Library (Smithsonian Institution). 2 indexed citations

6.

Haffer, Jürgen & Ghillean Τ. Prance. (2001). Climatic forcing of evolution in Amazonia during the Cenozoic: On the refuge theory of biotic differentiation. MPG.PuRe (Max Planck Society). 16. 579–607. 148 indexed citations

7.

Haffer, Jürgen. (2001). Die „Stresemannsche Revolution“ in der Ornithologie des frühen 20. Jahrhunderts. Journal für Ornithologie. 142(4). 381–389. 1 indexed citations

8.

Haffer, Jürgen. (1997). Contact Zones between Birds of Southern Amazonia. Ornithological Monographs. 281–305. 70 indexed citations

9.

Haffer, Jürgen. (1997). Essentialistisches und evolutionäres Denken in der systematischen Ornithologie des 19. und 20. Jahrhunderts. Journal für Ornithologie. 138(1). 61–72. 9 indexed citations

10.

Haffer, Jürgen. (1994). The genesis of Erwin Stresemann'sAves(1927–1934) in theHandbuch der Zoologie, and his contribution to the evolutionary synthesis. Archives of Natural History. 21(2). 201–216. 9 indexed citations

11.

Haffer, Jürgen. (1992). Ciclos de tempo e indicadores de tempos na história da Amazônia. Estudos Avançados. 6(15). 7–39. 13 indexed citations

12.

Simpson, Beryl B. & Jürgen Haffer. (1978). Speciation Patterns in the Amazonian Forest Biota. Annual Review of Ecology and Systematics. 9(1). 497–518. 144 indexed citations

13.

Haffer, Jürgen. (1977). Pleistocene speciation in Amazonian birds. MPG.PuRe (Max Planck Society). 6(2). 161–191. 16 indexed citations

14.

Haffer, Jürgen. (1970). Geologic-climatic history and zoogeographic significance of the Urabá region in northwestern Colombia. Caldasia. 10(50). 603–636. 36 indexed citations

15.

Haffer, Jürgen. (1968). Über die Entstehung der nördlichen Anden und das vermutliche Alter columbianischer Vogelarten. Journal für Ornithologie. 109(1). 67–69. 4 indexed citations

16.

Haffer, Jürgen. (1967). On the dispersal of highland birds in tropical South and Central America. El Hornero. 10(4). 436–438. 1 indexed citations

17.

Haffer, Jürgen. (1967). Zoogeographical notes on the «nonforest» lowland bird faunas of northwestern South America. El Hornero. 10(4). 315–333. 26 indexed citations

18.

Haffer, Jürgen. (1967). Interspecific competition as a possible factor in limiting the range of some trans-andean forest birds. El Hornero. 10(4). 438–440. 5 indexed citations

19.

Haffer, Jürgen. (1967). Speciation in Colombian forest birds west of the Andes. American Museum novitates ; no. 2294. American Museum Novitates. 54 indexed citations

20.

Haffer, Jürgen, et al.. (1962). Über dieLepidocentrus-Arten (echinoidea) des rheinischen Mitteldevon. Paläontologische Zeitschrift. 36(S1). 77–85.

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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