Ralf H.E. Mullers

502 total citations
17 papers, 424 citations indexed

About

Ralf H.E. Mullers is a scholar working on Ecology, Ecology, Evolution, Behavior and Systematics and Global and Planetary Change. According to data from OpenAlex, Ralf H.E. Mullers has authored 17 papers receiving a total of 424 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Ecology, 6 papers in Ecology, Evolution, Behavior and Systematics and 6 papers in Global and Planetary Change. Recurrent topics in Ralf H.E. Mullers's work include Avian ecology and behavior (15 papers), Wildlife Ecology and Conservation (7 papers) and Animal Behavior and Reproduction (6 papers). Ralf H.E. Mullers is often cited by papers focused on Avian ecology and behavior (15 papers), Wildlife Ecology and Conservation (7 papers) and Animal Behavior and Reproduction (6 papers). Ralf H.E. Mullers collaborates with scholars based in South Africa, France and Netherlands. Ralf H.E. Mullers's co-authors include Andréa Thiebault, Pierre Pistorius, Yann Tremblay, Allert I. Bijleveld, Joost M. Tinbergen, Robert J. M. Crawford, Les G Underhill, R. A. Navarro, Laurent Dubroca and David B. Green and has published in prestigious journals such as PLoS ONE, Scientific Reports and Frontiers in Ecology and the Environment.

In The Last Decade

Ralf H.E. Mullers

17 papers receiving 409 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Ralf H.E. Mullers South Africa	10	388	191	133	65	57	17	424
Cecilia Passadore Australia	13	290 0.7×	57 0.3×	141 1.1×	72 1.1×	67 1.2×	18	350
J. C. Hennicke Germany	7	351 0.9×	99 0.5×	119 0.9×	22 0.3×	52 0.9×	9	383
Bernard Cadiou France	9	422 1.1×	255 1.3×	47 0.4×	32 0.5×	53 0.9×	15	496
Harry R. Harding United Kingdom	10	340 0.9×	86 0.5×	126 0.9×	172 2.6×	65 1.1×	14	399
Holly C. Raudino Australia	9	322 0.8×	39 0.2×	92 0.7×	92 1.4×	77 1.4×	19	355
Julio E. Sánchez Costa Rica	8	163 0.4×	122 0.6×	49 0.4×	83 1.3×	50 0.9×	23	264
A.G. Wood United Kingdom	7	536 1.4×	181 0.9×	194 1.5×	21 0.3×	69 1.2×	8	570
Tom Brough New Zealand	11	232 0.6×	38 0.2×	82 0.6×	53 0.8×	57 1.0×	27	285
Gerard J. McChesney United States	9	294 0.8×	47 0.2×	80 0.6×	20 0.3×	79 1.4×	24	334
Pamela H. Loring United States	6	298 0.8×	87 0.5×	54 0.4×	58 0.9×	30 0.5×	15	336

Countries citing papers authored by Ralf H.E. Mullers

Since Specialization

Citations

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

Fields of papers citing papers by Ralf H.E. Mullers

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ralf H.E. Mullers. 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 Ralf H.E. Mullers. The network helps show where Ralf H.E. Mullers may publish in the future.

Co-authorship network of co-authors of Ralf H.E. Mullers

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

All Works

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17 of 17 papers shown

Mullers, Ralf H.E., et al.. (2024). The impact of weather conditions on the competition and breeding success of three sympatric hornbill species in a semi-arid region. Global Ecology and Conservation. 53. e02992–e02992. 1 indexed citations

Acácio, Marta, et al.. (2021). Changes in surface water drive the movements of Shoebills. Scientific Reports. 11(1). 3 indexed citations

Thiebault, Andréa, Laurent Dubroca, Ralf H.E. Mullers, Yann Tremblay, & Pierre Pistorius. (2018). “m2b” package in r: Deriving multiple variables from movement data to predict behavioural states with random forests. Methods in Ecology and Evolution. 9(6). 1548–1555. 7 indexed citations

Navarro, R. A., Harro A. J. Meijer, Les G Underhill, & Ralf H.E. Mullers. (2018). Extreme water efficiency of Cape gannetMorus capensischicks as an adaptation to water scarcity and heat stress in the breeding colony. Marine and Freshwater Behaviour and Physiology. 51(1). 30–43. 2 indexed citations

Thiebault, Andréa, Pierre Pistorius, Ralf H.E. Mullers, & Yann Tremblay. (2016). Seabird acoustic communication at sea: a new perspective using bio-logging devices. Scientific Reports. 6(1). 30972–30972. 22 indexed citations

Navarro, R. A., Ralf H.E. Mullers, Harro A. J. Meijer, & Les G Underhill. (2015). Energy Expenditure of Free-Ranging Chicks of the Cape GannetMorus capensis. Physiological and Biochemical Zoology. 88(4). 406–415. 4 indexed citations

Mullers, Ralf H.E. & Arjun Amar. (2015). Parental Nesting Behavior, Chick Growth and Breeding Success of Shoebills(Balaeniceps rex)in the Bangweulu Wetlands, Zambia. Waterbirds. 38(1). 1–22. 4 indexed citations

Tremblay, Yann, Andréa Thiebault, Ralf H.E. Mullers, & Pierre Pistorius. (2014). Bird-Borne Video-Cameras Show That Seabird Movement Patterns Relate to Previously Unrevealed Proximate Environment, Not Prey. PLoS ONE. 9(2). e88424–e88424. 78 indexed citations

Thiebault, Andréa, Ralf H.E. Mullers, Pierre Pistorius, & Yann Tremblay. (2014). Local enhancement in a seabird: reaction distances and foraging consequence of predator aggregations. Behavioral Ecology. 25(6). 1302–1310. 80 indexed citations

10.

Thiebault, Andréa, Ralf H.E. Mullers, Pierre Pistorius, et al.. (2014). From colony to first patch: Processes of prey searching and social information in Cape Gannets. The Auk. 131(4). 595–609. 60 indexed citations

11.

Mullers, Ralf H.E. & Arjun Amar. (2014). Shoebill Balaeniceps rex foraging behaviour in the Bangweulu Wetlands, Zambia. Ostrich. 86(1-2). 113–118. 4 indexed citations

12.

Grémillet, David, Hervé Demarcq, Lorien Pichegru, et al.. (2013). Fine-scale recognition and use of mesoscale fronts by foraging Cape gannets in the Benguela upwelling region. Deep Sea Research Part II Topical Studies in Oceanography. 107. 77–84. 21 indexed citations

13.

Grémillet, David, Maëlle Connan, Peter G. Ryan, et al.. (2012). Foraging ecology and ecophysiology of Cape gannets from colonies in contrasting feeding environments. Journal of Experimental Marine Biology and Ecology. 422-423. 29–38. 32 indexed citations

14.

Grémillet, David, Ralf H.E. Mullers, Lorien Pichegru, et al.. (2010). Seabirds, fisheries, and cameras. Frontiers in Ecology and the Environment. 8(8). 401–402. 15 indexed citations

15.

Mullers, Ralf H.E., R. A. Navarro, Robert J. M. Crawford, & Les G Underhill. (2009). The importance of lipid-rich fish prey for Cape gannet chick growth: are fishery discards an alternative?. ICES Journal of Marine Science. 66(10). 2244–2252. 33 indexed citations

16.

Bijleveld, Allert I. & Ralf H.E. Mullers. (2009). Reproductive effort in biparental care: an experimental study in long-lived Cape gannets. Behavioral Ecology. 20(4). 736–744. 33 indexed citations

17.

Mullers, Ralf H.E. & Joost M. Tinbergen. (2009). Ineividual variation in Parental Provisioning Behaviour Predicts Survival of Cape Gannet Chicks Under Poor Conditions. Ardea. 97(1). 89–98. 25 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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