Sam M. Ferreira

3.8k total citations · 1 hit paper
129 papers, 2.5k citations indexed

About

Sam M. Ferreira is a scholar working on Ecology, Nature and Landscape Conservation and Genetics. According to data from OpenAlex, Sam M. Ferreira has authored 129 papers receiving a total of 2.5k indexed citations (citations by other indexed papers that have themselves been cited), including 107 papers in Ecology, 26 papers in Nature and Landscape Conservation and 21 papers in Genetics. Recurrent topics in Sam M. Ferreira's work include Wildlife Ecology and Conservation (96 papers), Ecology and Vegetation Dynamics Studies (21 papers) and Animal Behavior and Welfare Studies (20 papers). Sam M. Ferreira is often cited by papers focused on Wildlife Ecology and Conservation (96 papers), Ecology and Vegetation Dynamics Studies (21 papers) and Animal Behavior and Welfare Studies (20 papers). Sam M. Ferreira collaborates with scholars based in South Africa, United States and United Kingdom. Sam M. Ferreira's co-authors include Rudi J. van Aarde, Paul J. Funston, Timothy C. Haas, Cathy Greaver, Danie Pienaar, Theo Wassenaar, Izak P. J. Smit, David R. Towns, Mike Knight and Adrian M. Shrader and has published in prestigious journals such as Proceedings of the National Academy of Sciences, SHILAP Revista de lepidopterología and PLoS ONE.

In The Last Decade

Sam M. Ferreira

124 papers receiving 2.4k citations

Hit Papers

align trajectories sort by overperformance

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.

Continent-wide survey reveals massive decline in African savannah elephants

2016 242 citations Sam M. Ferreira, Jeanetta Selier et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Sam M. Ferreira South Africa	27	2.0k	600	379	375	359	129	2.5k
Simon Mduma Tanzania	23	2.0k 1.0×	726 1.2×	511 1.3×	481 1.3×	393 1.1×	52	2.6k
J. Grant C. Hopcraft United Kingdom	24	2.3k 1.2×	740 1.2×	604 1.6×	565 1.5×	489 1.4×	57	3.0k
Floris M. van Beest Denmark	29	2.1k 1.1×	433 0.7×	211 0.6×	388 1.0×	347 1.0×	83	2.7k
Petra Kaczensky Austria	31	2.3k 1.2×	439 0.7×	554 1.5×	365 1.0×	556 1.5×	100	3.0k
Clayton K. Nielsen United States	30	2.7k 1.3×	489 0.8×	141 0.4×	378 1.0×	528 1.5×	159	3.2k
Jerod A. Merkle United States	27	2.1k 1.1×	401 0.7×	256 0.7×	323 0.9×	422 1.2×	79	2.5k
Arthur D. Middleton United States	25	2.2k 1.1×	457 0.8×	274 0.7×	322 0.9×	389 1.1×	54	2.6k
Mary M. Conner United States	27	1.5k 0.8×	531 0.9×	153 0.4×	319 0.9×	215 0.6×	71	2.5k
Holly Dublin Kenya	27	2.0k 1.0×	727 1.2×	807 2.1×	683 1.8×	269 0.7×	62	2.8k
P. J. White United States	37	2.9k 1.5×	670 1.1×	245 0.6×	350 0.9×	388 1.1×	102	3.7k

Countries citing papers authored by Sam M. Ferreira

Since Specialization

Citations

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

Fields of papers citing papers by Sam M. Ferreira

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Sam M. Ferreira. 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 Sam M. Ferreira. The network helps show where Sam M. Ferreira may publish in the future.

Co-authorship network of co-authors of Sam M. Ferreira

This figure shows the co-authorship network connecting the top 25 collaborators of Sam M. Ferreira. A scholar is included among the top collaborators of Sam M. Ferreira 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 Sam M. Ferreira. Sam M. Ferreira 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

Selier, Jeanetta, et al.. (2025). A National Elephant Heritage Strategy for South Africa. African Journal of Wildlife Research. 55(sp2).

Ferreira, Sam M., et al.. (2025). Systemic Toxicity of L‐Mimosine in Rabbits: A Non‐Rodent Model for Safety Assessment. Journal of Applied Toxicology. 46(2). 639–651.

Selier, Jeanetta, et al.. (2024). Wild lions in small, fenced reserves in South Africa conform to a meta‐population. SHILAP Revista de lepidopterología. 5(3). 2 indexed citations

Ferreira, Sam M. & Luthando Dziba. (2023). Rhinoceros accounting in Kruger National Park, South Africa. Journal for Nature Conservation. 72. 126359–126359. 3 indexed citations

Gunner, Richard, Rory P. Wilson, Mark D. Holton, et al.. (2022). Decision rules for determining terrestrial movement and the consequences for filtering high-resolution global positioning system tracks: a case study using the African lion ( Panthera leo ). Journal of The Royal Society Interface. 19(186). 20210692–20210692. 6 indexed citations

Shrader, Adrian M., et al.. (2022). White rhinos and other herbivores decrease visitations and increase vigilance in response to human vocalizations. Journal of Mammalogy. 103(6). 1364–1372. 6 indexed citations

Ferreira, Sam M., et al.. (2020). Horizontal disease transmission in lions from behavioural interfaces via social network analysis. Mammal Research. 65(4). 709–718. 1 indexed citations

Cowell, Carly, Charlene Bissett, & Sam M. Ferreira. (2019). Top-down and bottom-up processes to implement biological monitoring in protected areas. Journal of Environmental Management. 257. 109998–109998. 11 indexed citations

Ferreira, Sam M., Markus Hofmeyr, Danie Pienaar, & D. Cooper. (2014). Chemical horn infusions: a poaching deterrent or an unnecessary deception?. Pachyderm. 55. 54–61. 12 indexed citations

10.

Ferreira, Sam M., et al.. (2014). Management strategies to curb rhino poaching: Alternative options using a cost–benefit approach. South African Journal of Science. 110(5/6). 8–8. 26 indexed citations

11.

Ferreira, Sam M. & Markus Hofmeyr. (2014). Managing Charismatic Carnivores in Small Areas: Large Felids in South Africa. South African Journal of Wildlife Research. 44(1). 32–42. 26 indexed citations

12.

Delsink, Audrey, et al.. (2013). LACK OF SPATIAL AND BEHAVIORAL RESPONSES TO IMMUNOCONTRACEPTION APPLICATION IN AFRICAN ELEPHANTS (LOXODONTA AFRICANA). Journal of Zoo and Wildlife Medicine. 44(4s). S52–S74. 16 indexed citations

13.

Ferreira, Sam M., et al.. (2012). A proposed framework for short-, medium- and long-term responses by range and consumer States to curb poaching for African rhino horn. SHILAP Revista de lepidopterología. 51. 52–59. 25 indexed citations

14.

Smit, Izak P. J. & Sam M. Ferreira. (2010). Management intervention affects river-bound spatial dynamics of elephants. Biological Conservation. 143(9). 2172–2181. 45 indexed citations

15.

Ferreira, Sam M., et al.. (2006). Digital photogrammetry and laser rangefinder techniques to measure African elephants : research article. African Journal of Wildlife Research. 36(1). 1–7. 5 indexed citations

16.

Ferreira, Sam M.. (2005). Individual‐level management trade‐offs for populations of Dactylanthus taylorii (Balanophoraceae). New Zealand Journal of Botany. 43(2). 415–424. 2 indexed citations

17.

Ferreira, Sam M., et al.. (2001). The limitations of using kiore ( Rattus exulans ) diet‐sampling to determine woodrose ( Dactylanthus tay/ori , Balanophoraceae) distribution on Hauturu (Little Barrier Island), New Zealand. New Zealand Journal of Botany. 39(3). 465–470. 2 indexed citations

18.

Ferreira, Sam M., et al.. (2001). Gross features of the alimentary canal and reproduction organs in Prodontria lewisii (Coleoptera: Scarabaeidae: Melolonthinae). New Zealand Journal of Zoology. 28(3). 263–271. 3 indexed citations

19.

Ferreira, Sam M., et al.. (2000). Recent vegetation trends at the Cromwell Chafer Beetle Nature Reserve in Central Otago, New Zealand. New Zealand Journal of Botany. 38(2). 235–244. 6 indexed citations

20.

Ferreira, Sam M., et al.. (1999). Activity patterns and population characteristics of the New Zealand endemic Cromwell chafer, Prodontria lewisii (Scarabaeidae; Melolonthinae). New Zealand Journal of Zoology. 26(3). 229–241. 6 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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