William A. Calder

7.0k total citations · 2 hit papers
73 papers, 5.4k citations indexed

About

William A. Calder is a scholar working on Ecology, Ecology, Evolution, Behavior and Systematics and Global and Planetary Change. According to data from OpenAlex, William A. Calder has authored 73 papers receiving a total of 5.4k indexed citations (citations by other indexed papers that have themselves been cited), including 51 papers in Ecology, 33 papers in Ecology, Evolution, Behavior and Systematics and 12 papers in Global and Planetary Change. Recurrent topics in William A. Calder's work include Avian ecology and behavior (31 papers), Physiological and biochemical adaptations (23 papers) and Plant and animal studies (14 papers). William A. Calder is often cited by papers focused on Avian ecology and behavior (31 papers), Physiological and biochemical adaptations (23 papers) and Plant and animal studies (14 papers). William A. Calder collaborates with scholars based in United States, Australia and New Zealand. William A. Calder's co-authors include Stan L. Lindstedt, James R. King, Robert C. Lasiewski, Sara M. Hiebert, David S. Hinds, Knut Schmidt‐Nielsen, E. J. Braun, James H. Brown, Astrid Kodric‐Brown and Terence J. Dawson and has published in prestigious journals such as Nature, Science and Proceedings of the National Academy of Sciences.

In The Last Decade

William A. Calder

70 papers receiving 4.6k 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.

Size, Function, and Life History

1984 2.3k citations William A. Calder profile →
Thermal and caloric relations of birds

1974 388 citations William A. Calder, James R. King profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
William A. Calder United States	31	3.4k	2.2k	1.0k	664	596	73	5.4k
George A. Bartholomew United States	58	5.5k 1.6×	4.0k 1.8×	1.2k 1.2×	1.3k 1.9×	1.2k 2.1×	129	8.1k
Brian K. McNab United States	39	5.4k 1.6×	3.9k 1.8×	823 0.8×	635 1.0×	649 1.1×	68	7.0k
Joseph B. Williams United States	46	4.2k 1.2×	3.4k 1.5×	748 0.7×	623 0.9×	417 0.7×	154	6.0k
David Vleck United States	26	2.0k 0.6×	1.4k 0.6×	510 0.5×	446 0.7×	285 0.5×	39	2.9k
Gordon C. Grigg Australia	40	3.6k 1.1×	1.4k 0.6×	2.1k 2.1×	1.4k 2.1×	852 1.4×	165	6.4k
Roger S. Seymour Australia	50	4.0k 1.2×	3.0k 1.4×	1.9k 1.9×	1.7k 2.6×	892 1.5×	232	8.4k
Donald W. Thomas Canada	34	2.5k 0.7×	2.8k 1.3×	352 0.3×	284 0.4×	380 0.6×	71	4.3k
Don Bradshaw Australia	33	2.5k 0.7×	1.7k 0.7×	1.0k 1.0×	1.4k 2.1×	410 0.7×	168	4.3k
Gary C. Packard United States	38	3.1k 0.9×	1.6k 0.7×	3.2k 3.1×	2.5k 3.8×	589 1.0×	174	5.6k
Amos Ar Israel	28	2.0k 0.6×	980 0.4×	667 0.6×	389 0.6×	420 0.7×	95	4.0k

Countries citing papers authored by William A. Calder

Since Specialization

Citations

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

Fields of papers citing papers by William A. Calder

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by William A. Calder. 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 William A. Calder. The network helps show where William A. Calder may publish in the future.

Co-authorship network of co-authors of William A. Calder

This figure shows the co-authorship network connecting the top 25 collaborators of William A. Calder. A scholar is included among the top collaborators of William A. Calder 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 William A. Calder. William A. Calder 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

1.

Healy, Susan D. & William A. Calder. (2005). Rufous Hummingbird (Selasphorus rufus). The Birds of North America Online. 6 indexed citations

2.

Calder, William A.. (1994). When Do Hummingbirds Use Torpor in Nature?. Physiological Zoology. 67(5). 1051–1076. 28 indexed citations

3.

Calder, William A., et al.. (1994). Calliope Hummingbird (Selasphorus calliope). The Birds of North America Online. 2 indexed citations

4.

Calder, William A., et al.. (1990). The hummingbird's restraint: A natural model for weight control. Cellular and Molecular Life Sciences. 46(10). 999–1002. 48 indexed citations

5.

Calder, William A., et al.. (1989). Implications of recapture data for migration of the rufous hummingbird (Selasphorus rufus) in the Rocky Mountains. 106(3). 488–489. 5 indexed citations

6.

Calder, William A.. (1988). State, function, and optimization. Behavioral and Brain Sciences. 11(1). 131–133. 2 indexed citations

7.

Calder, William A., Nickolas M. Waser, Sara M. Hiebert, David W. Inouye, & Sarah J. Miller. (1983). Site-fidelity, longevity, and population dynamics of broad-tailed hummingbirds: a ten year study. Oecologia. 56(2-3). 359–364. 29 indexed citations

8.

Calder, William A.. (1983). Body size, mortality, and longevity. Journal of Theoretical Biology. 102(1). 135–144. 54 indexed citations

9.

Hiebert, Sara M. & William A. Calder. (1983). Sodium, Potassium, and Chloride in Floral Nectars: Energy‐Free Contributions to Refractive Index and Salt Balance. Ecology. 64(2). 399–402. 68 indexed citations

10.

Calder, William A.. (1976). Descriptions of Avian Biology. Ecology. 57(3). 622–623. 1 indexed citations

11.

Waser, Nickolas M. & William A. Calder. (1975). Possible Impairment of Nest-Building of Hummingbirds by Acetate Leg Tags. Ornithological Applications. 77(3). 361–361. 4 indexed citations

12.

Calder, William A.. (1974). The Thermal and Radiant Environment of a Winter Hummingbird Nest. Ornithological Applications. 76(3). 268–273. 21 indexed citations

13.

Calder, William A. & James R. King. (1974). Thermal and caloric relations of birds. 259–413. 388 indexed citations breakdown →

14.

Calder, William A.. (1973). An estimate of the heat balance of a nesting hummingbird in a chilling climate. Comparative Biochemistry and Physiology Part A Physiology. 46(2). 291–300. 23 indexed citations

15.

Calder, William A.. (1972). Heat loss from small birds: Analogy with ohm's law and a re-examination of the “Newtonian model”. Comparative Biochemistry and Physiology Part A Physiology. 43(1). 13–20. 10 indexed citations

16.

Lasiewski, Robert C. & William A. Calder. (1971). A preliminary allometric analysis of respiratory variables in resting birds. Respiration Physiology. 11(2). 152–166. 176 indexed citations

17.

Hinds, David S. & William A. Calder. (1971). Tracheal Dead Space in the Respiration of Birds. Evolution. 25(2). 429–429. 28 indexed citations

18.

Calder, William A.. (1970). Use of Dipper Nest by Mountain Bluebird. Ornithological Applications. 72(4). 498–498.

19.

Calder, William A.. (1968). Temperature Relations and Underwater Endurance of the Smallest Homeothermic Diver. 1968(1). 7. 3 indexed citations

20.

Calder, William A. & P.J. Bentley. (1967). Urine concentrations of two carnivorous birds, the white pelican and the roadrunner. Comparative Biochemistry and Physiology. 22(2). 607–609. 9 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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