Nigel Collar

10.2k total citations · 3 hit papers
179 papers, 5.8k citations indexed

About

Nigel Collar is a scholar working on Ecology, Nature and Landscape Conservation and Ecological Modeling. According to data from OpenAlex, Nigel Collar has authored 179 papers receiving a total of 5.8k indexed citations (citations by other indexed papers that have themselves been cited), including 132 papers in Ecology, 70 papers in Nature and Landscape Conservation and 50 papers in Ecological Modeling. Recurrent topics in Nigel Collar's work include Wildlife Ecology and Conservation (94 papers), Avian ecology and behavior (76 papers) and Species Distribution and Climate Change (50 papers). Nigel Collar is often cited by papers focused on Wildlife Ecology and Conservation (94 papers), Avian ecology and behavior (76 papers) and Species Distribution and Climate Change (50 papers). Nigel Collar collaborates with scholars based in United Kingdom, United States and Kenya. Nigel Collar's co-authors include M. J. Crosby, Simon N. Stuart, Alison J. Stattersfield, Joseph A. Tobias, Georgina M. Mace, H. Reşi̇t Akçakaya, Craig Hilton‐Taylor, Nigel Leader‐Williams, Kevin J. Gaston and E.J. Milner‐Gulland and has published in prestigious journals such as Proceedings of the National Academy of Sciences, PLoS ONE and Trends in Ecology & Evolution.

In The Last Decade

Nigel Collar

170 papers receiving 4.7k 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.

Quantification of Extinction Risk: IUCN's System for Classifying Threatened Species

2008 983 citations Nigel Collar et al. profile →
Quantitative criteria for species delimitation

2010 635 citations Joseph A. Tobias, Claire N. Spottiswoode et al. profile →
Birds to Watch 2: The World List of Threatened Birds

1996 561 citations Nigel Collar, M. J. Crosby et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Nigel Collar United Kingdom	28	3.7k	2.3k	1.8k	1.4k	927	179	5.8k
Philip J. Seddon New Zealand	37	4.5k 1.2×	1.9k 0.8×	1.3k 0.7×	1.3k 1.0×	1.0k 1.1×	185	6.3k
Doug P. Armstrong New Zealand	38	4.6k 1.3×	2.3k 1.0×	1.2k 0.7×	1.7k 1.2×	877 0.9×	146	6.2k
Samuel T. Turvey United Kingdom	39	3.8k 1.0×	1.4k 0.6×	1.4k 0.8×	916 0.7×	740 0.8×	184	6.0k
Sam Droege United States	27	5.5k 1.5×	2.5k 1.1×	2.3k 1.3×	1.3k 0.9×	616 0.7×	57	7.0k
Klaas Hartmann Australia	25	2.4k 0.7×	1.7k 0.7×	945 0.5×	1.6k 1.1×	754 0.8×	89	5.1k
Gavin H. Thomas United Kingdom	36	3.7k 1.0×	2.9k 1.3×	2.2k 1.2×	2.8k 2.1×	1.4k 1.6×	79	7.7k
William J. McShea United States	51	5.5k 1.5×	2.6k 1.1×	1.6k 0.9×	1.1k 0.8×	673 0.7×	215	7.5k
Russell Greenberg United States	47	4.2k 1.1×	2.5k 1.1×	1.1k 0.6×	3.5k 2.6×	800 0.9×	179	8.2k
David W. Gibbons United Kingdom	31	3.7k 1.0×	2.8k 1.2×	2.0k 1.1×	1.8k 1.3×	581 0.6×	56	6.8k
Colleen T. Downs South Africa	33	3.7k 1.0×	2.1k 0.9×	739 0.4×	1.8k 1.3×	502 0.5×	471	5.7k

Countries citing papers authored by Nigel Collar

Since Specialization

Citations

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

Fields of papers citing papers by Nigel Collar

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Nigel Collar

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Collar, Nigel, et al.. (2024). Messaging with appeal to intrinsic or relational values shows potential to shift demand for wildlife as pets. People and Nature. 7(1). 4–14. 1 indexed citations

Geary, Matthew, et al.. (2024). Gone with the wind: the proximate and ultimate causes of the decline and extinction of the Bahama Nuthatch Sitta insularis. Bird Conservation International. 34. 1 indexed citations

Collar, Nigel, et al.. (2023). The road to recovery: conservation management for the Critically Endangered Bali myna shows signs of success. Oryx. 58(3). 367–377. 2 indexed citations

Marsden, Stuart J., et al.. (2023). Distribution and abundance of threatened and heavily traded birds in the mountains of western Java. Bird Conservation International. 33.

Collar, Nigel & Tim Wacher. (2023). The conservation status of the Nubian Bustard Nubotis nuba: a review and prognosis. Bird Conservation International. 33.

Collar, Nigel, et al.. (2022). The distribution, ecology and conservation status of the long-tailed woodnymph Thalurania watertonii. 31(1). 1–12. 1 indexed citations

Silva, João Paulo, Ana Teresa Marques, Joana Bernardino, et al.. (2022). The effects of powerlines on bustards: how best to mitigate, how best to monitor?. Bird Conservation International. 33. 16 indexed citations

Martin, Robert W., et al.. (2022). On the edge: habitat restoration priorities for three critically endangered bird species on Sangihe, Indonesia. Restoration Ecology. 31(1). 2 indexed citations

McGowan, Philip J.K., Nigel Collar, Maíra Benchimol, et al.. (2020). Which is worse for the red-billed curassow: habitat loss or hunting pressure?. Oryx. 55(3). 412–420. 3 indexed citations

10.

Collar, Nigel, Robert J. Burnside, & Paul M. Dolman. (2017). Averting the extinction of bustards in Asia. UEA Digital Repository (University of East Anglia). 33. 1–26. 23 indexed citations

11.

Bladon, Andrew J., Nigel Collar, Paul F. Donald, et al.. (2016). Further notes on the natural history of the Ethiopian Bush-crow. Bulletin of the African Bird Club. 23(1). 27–45. 2 indexed citations

12.

Bladon, Andrew J., Till Töpfer, Nigel Collar, et al.. (2015). Notes on the behaviour, plumage and distribution of the White-tailed Swallow Hirundo megaensis. Apollo (University of Cambridge). 3 indexed citations

13.

Bladon, Andrew J., Till Töpfer, Nigel Collar, et al.. (2015). Notes on the behaviour, plumage and distribution of the White-tailed Swallow. Bulletin of the African Bird Club. 22(2). 148–161. 1 indexed citations

14.

Bladon, Andrew J., Nigel Collar, Paul F. Donald, et al.. (2015). Further notes on the natural history of the Ethiopian Bush-crow Zavattariornis stresemanni. Apollo (University of Cambridge). 3 indexed citations

15.

Mallari, Neil Aldrin D., Nigel Collar, Philip J.K. McGowan, & Stuart J. Marsden. (2015). Philippine protected areas are not meeting the biodiversity coverage and management effectiveness requirements of Aichi Target 11. AMBIO. 45(3). 313–322. 27 indexed citations

16.

Sheldon, Ben C., et al.. (2013). A comprehensive molecular phylogeny for the hornbills (Aves: Bucerotidae). Molecular Phylogenetics and Evolution. 67(2). 468–483. 36 indexed citations

17.

Mallari, Neil Aldrin D., Nigel Collar, Philip J.K. McGowan, & Stuart J. Marsden. (2013). Science-Driven Management of Protected Areas: A Philippine Case Study. Environmental Management. 51(6). 1236–1246. 6 indexed citations

18.

Collar, Nigel, et al.. (2003). The archive and the arkc Bird specimen data in conservation status assessment. Bulletin of the British Ornithologists Club. 95–113. 10 indexed citations

19.

Collar, Nigel, Neil Aldrin D. Mallari, Blas R. Tabaranza, & M. J. Crosby. (1999). Threatened birds of the Philippines : the Haribon Foundation/BirdLife International Red data book. 25 indexed citations

20.

Collar, Nigel. (1991). Threatened Parrots of the Neotropics. 18(3). 43–49. 1 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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