Efstratios Valakos

2.1k total citations
71 papers, 1.7k citations indexed

About

Efstratios Valakos is a scholar working on Global and Planetary Change, Ecology, Evolution, Behavior and Systematics and Ecology. According to data from OpenAlex, Efstratios Valakos has authored 71 papers receiving a total of 1.7k indexed citations (citations by other indexed papers that have themselves been cited), including 36 papers in Global and Planetary Change, 29 papers in Ecology, Evolution, Behavior and Systematics and 24 papers in Ecology. Recurrent topics in Efstratios Valakos's work include Amphibian and Reptile Biology (34 papers), Animal Behavior and Reproduction (21 papers) and Species Distribution and Climate Change (17 papers). Efstratios Valakos is often cited by papers focused on Amphibian and Reptile Biology (34 papers), Animal Behavior and Reproduction (21 papers) and Species Distribution and Climate Change (17 papers). Efstratios Valakos collaborates with scholars based in Greece, United States and United Kingdom. Efstratios Valakos's co-authors include Panayiotis Pafilis, Petros Lymberakis, Johannes Foufopoulos, Nikos Poulakakis, Κostas Sagonas, M. Mylonas, Eleftherios Zouros, Shai Meiri, Efthymia Nikita and Sinos Giokas and has published in prestigious journals such as SHILAP Revista de lepidopterología, Evolution and Molecular Ecology.

In The Last Decade

Efstratios Valakos

70 papers receiving 1.6k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Efstratios Valakos Greece 25 875 661 590 541 534 71 1.7k
Zoltán T. Nagy Belgium 21 830 0.9× 413 0.6× 634 1.1× 425 0.8× 456 0.9× 57 1.5k
Somsak Panha Thailand 22 376 0.4× 709 1.1× 430 0.7× 156 0.3× 825 1.5× 180 1.9k
Leandro R. Monteiro Brazil 31 396 0.5× 757 1.1× 523 0.9× 145 0.3× 872 1.6× 74 3.0k
Ulrich Joger Germany 28 1.2k 1.4× 506 0.8× 1.2k 2.0× 545 1.0× 561 1.1× 71 2.3k
Kenneth I. Warheit United States 20 275 0.3× 236 0.4× 711 1.2× 134 0.2× 670 1.3× 41 1.7k
Gaëtano Odierna Italy 24 674 0.8× 338 0.5× 881 1.5× 84 0.2× 222 0.4× 135 1.7k
Luis Felipe López‐Jurado Spain 19 775 0.9× 269 0.4× 337 0.6× 249 0.5× 452 0.8× 105 1.4k
Marc Cheylan France 22 646 0.7× 218 0.3× 310 0.5× 388 0.7× 567 1.1× 55 1.2k
James R. Dixon United States 19 1.0k 1.2× 460 0.7× 307 0.5× 416 0.8× 442 0.8× 111 1.4k
Αristeidis Parmakelis Greece 22 189 0.2× 245 0.4× 519 0.9× 134 0.2× 417 0.8× 75 1.2k

Countries citing papers authored by Efstratios Valakos

Since Specialization
Citations

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

Fields of papers citing papers by Efstratios Valakos

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Efstratios Valakos

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

All Works

20 of 20 papers shown
1.
Foufopoulos, Johannes, et al.. (2023). Predation Risk, and Not Shelter or Food Availability, as the Main Determinant of Reproduction Investment in Island Lizards. Animals. 13(23). 3689–3689. 2 indexed citations
2.
Valakos, Efstratios, et al.. (2023). Engaging and assessing students via a museum educational program. Eurasia Journal of Mathematics Science and Technology Education. 19(10). em2334–em2334. 1 indexed citations
3.
Parmakelis, Αristeidis, et al.. (2023). Small Island Effects on the Thermal Biology of the Endemic Mediterranean Lizard Podarcis gaigeae. Animals. 13(18). 2965–2965. 1 indexed citations
4.
Sagonas, Κostas, et al.. (2021). Tail regeneration alters the digestive performance of lizards. Journal of Evolutionary Biology. 34(4). 671–679. 2 indexed citations
5.
Bertsatos, Andreas, et al.. (2018). Morphological variation of the femoral head fovea capitis. European Journal of Anatomy. 22(5). 397–402. 2 indexed citations
6.
Sagonas, Κostas, Anna Runemark, Aglaia Antoniou, et al.. (2018). Selection, drift, and introgression shape MHC polymorphism in lizards. Heredity. 122(4). 468–484. 17 indexed citations
7.
Sagonas, Κostas, et al.. (2017). Living in sympatry: The effect of habitat partitioning on the thermoregulation of three Mediterranean lizards. Journal of Thermal Biology. 65. 130–137. 15 indexed citations
8.
Sagonas, Κostas, et al.. (2017). Tail regeneration affects the digestive performance of a Mediterranean lizard. Die Naturwissenschaften. 104(3-4). 22–22. 7 indexed citations
9.
Valakos, Efstratios, et al.. (2017). Population-specificity of sexual dimorphism in cranial and pelvic traits: evaluation of existing and proposal of new functions for sex assessment in a Greek assemblage. International Journal of Legal Medicine. 131(6). 1731–1738. 32 indexed citations
10.
Pafilis, Panayiotis, et al.. (2016). 02. Body size affects digestive performance in a Mediterranean lizard. Herpetological Journal. 26(3). 199–205. 8 indexed citations
11.
Chovalopoulou, Maria‐Eleni, Efstratios Valakos, & Sotiris K. Manolis. (2016). Sex determination by three-dimensional geometric morphometrics of the vault and midsagittal curve of the neurocranium in a modern Greek population sample. HOMO. 67(3). 173–187. 14 indexed citations
12.
Sagonas, Κostas, Nikos Poulakakis, Petros Lymberakis, et al.. (2014). Molecular systematics and historical biogeography of the green lizards (Lacerta) in Greece: Insights from mitochondrial and nuclear DNA. Molecular Phylogenetics and Evolution. 76. 144–154. 39 indexed citations
13.
Chondropoulos, Basil, et al.. (2013). COMPARATIVE DATA ON REPRODUCTION IN PODARCIS ERHARDII, PODARCIS PELOPONNESIACA, AND PODARCIS TAURICA (REPTILIA, SAURIA, LACERTIDAE). Israel Journal of Zoology. 2 indexed citations
14.
Kelepertzis, Efstratios, et al.. (2012). Distribution and Accumulation of Metals in Tadpoles Inhabiting the Metalliferous Streams of Eastern Chalkidiki, Northeast Greece. Archives of Environmental Contamination and Toxicology. 63(3). 409–420. 6 indexed citations
15.
Valakos, Efstratios, Panayiotis Pafilis, Ioannis F. Voutsas, et al.. (2007). Combining immunological and molecular data to assess phylogenetic relations of some Greek Podarcis species. Comparative Biochemistry and Physiology Part B Biochemistry and Molecular Biology. 147(1). 1–10. 7 indexed citations
16.
Pafilis, Panayiotis, Efstratios Valakos, & Johannes Foufopoulos. (2005). Comparative Postautotomy Tail Activity in Six Mediterranean Lacertid Lizard Species. Physiological and Biochemical Zoology. 78(5). 828–838. 29 indexed citations
17.
Poulakakis, Nikos, et al.. (2004). The inter- and intraspecific status of aegean Mauremys rivulata (Chelonia, Bataguridae) as inferred by mitochondrial DNA sequences. Herpetological Journal. 14(1). 35–45. 16 indexed citations
18.
Valakos, Efstratios & Rosa Polymeni. (1990). The food of Cyrtodactylus kotschyi (Steindachner, 1870) (Sauria- Gekkonidae) during the wet season in the Mediterranean insular ecosystems of the Aegean.. Herpetological Journal. 1(10). 474–477. 6 indexed citations
19.
Valakos, Efstratios. (1989). Thermal ecology of Cyrtodactylus kotschyi (Steindachner, 1870) (Sauria-Gekkonidae) in the insular ecosystems of the Aegean. Herpetological Journal. 1(9). 196–399. 8 indexed citations
20.
Valakos, Efstratios. (1986). The feeding ecology of Podarcis erhardii (Reptilia-lacertidae) in a main insular ecosystem. Herpetological Journal. 1(3). 118–121. 18 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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