Jan W. Arntzen

Leiden University — Netherlands

Biochemistry, Genetics and Molecular Biology · Life Sciences

44h-index6.2kcitations199works3.12yr avg
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Research Topics

Genetic diversity and population structure(95), Amphibian and Reptile Biology(72), Species Distribution and Climate Change(49), Wildlife Ecology and Conservation(35), Morphological variations and asymmetry(25)

Publications199 total

A subspecies of marbled newt (Triturus marmoratus) in the Iberian Peninsula newly resolved from congruent nuclear and mitochondrial DNA data
The Catalogue of Life·2026Open Access
Morphological and genetic diversification of Old-World marbled newts, with the description of a new and ‘ not-at-all-cryptic’ subspecies from the Iberian Peninsula (Triturus, Salamandridae)
The Catalogue of Life·2026Open Access
The position, shape and dynamics of the hybrid zone between the Danube and Italian crested newt based on genome-wide data, with a cautionary tale on the discovery of a ‘distinct’ mtDNA lineage
Amphibia-Reptilia·2026Open Access
Triploidy in a pair of hybridizing salamanders at the far end of the speciation continuum
Journal of Heredity·2026Open Access
Morphological Divergence in Marbled and Pygmy Newts: A Skull Shape Perspective
Contributions to Zoology·2025Open Access
Problems, progress and prospects in marking sympatric newt species with passive integrated transponders
Amphibia-Reptilia·2025· 1 citedOpen Access
Long Term Hybrid Zone Dynamics in Fire‐Bellied Toads Estimated From Environmental Data at Allopatric and Parapatric Scales
Journal of Biogeography·2025Open Access
Assessment of environmental variables for species distribution modelling: Insight from the mosaic distribution of red- and yellow-bellied toads
Basic and Applied Ecology·2025· 1 citedOpen Access
Long term hybrid zone dynamics in red- and yellow-bellied toads estimated from environmental data at allopatric and parapatric scales
2025· 2 citedOpen Access
Assessment of environmental variables for species distribution modelling: insights from the mosaic distribution of red- and yellow-bellied toads
2025Open Access
Decadal data reveal declines, not species replacement, of salamanders under agrarian reform
Global Ecology and Conservation·2025· 3 citedOpen Access
Funnel trapping yields largely unbiased sampling of crested and marbled newts (genus <i>Triturus</i>)
Knowledge and Management of Aquatic Ecosystems·2025· 2 citedOpen Access
Allometry, sexual dimorphism, and Rensch’s rule in pygmy and marbled newts
Journal of Evolutionary Biology·2024· 3 citedOpen Access
Phylogenomics resolves the puzzling phylogeny of banded newts (genus Ommatotriton)
Molecular Phylogenetics and Evolution·2024· 4 citedOpen Access
The balanced lethal system in <i>Triturus</i> newts originated in an instantaneous speciation event.
2024· 10 citedOpen Access
On the aquatic phenology of sympatric crested and marbled newts (genus Triturus)
Amphibia-Reptilia·2024· 3 citedOpen Access
Hybridization and introgression in deeply differentiated salamander species – molecular genetics and a reappraisal of Dr. Louis Vallée’s osteological data
Contributions to Zoology·2024· 5 citedOpen Access
Pond area and availability safeguard amphibian genetic diversity across Iberia's largest protected wetland
Freshwater Biology·2024· 4 citedOpen Access
A subspecies of marbled newt (Triturus marmoratus) in the Iberian Peninsula newly resolved from congruent nuclear and mitochondrial dna data
Contributions to Zoology·2024· 3 citedOpen Access
Morphological and genetic diversification of pygmy and marbled newts, with the description of a new species from the wider Lisbon Peninsula (Triturus, Salamandridae)
Contributions to Zoology·2024· 8 citedOpen Access
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Frequent Co-authors

Ben Wielstra(18), Dan Cogălniceanu(7), Graham P. Wallis(7), Íñigo Martínez‐Solano(6), Kurtuluş Olgun(5), Wiesław Babik(4), Terry Burke(4), Jelka Crnobrnja‐Isailović(3), Willem R. M. Meilink(3), Spartak N. Litvinchuk(3), Ernesto Recuero(3), Daniele Canestrelli(3), Tibor Hartel(3), Roger K. Butlin(3), Gonçalo Espregueira Themudo(3), Nikolay A. Poyarkov(2), Sean Hoban(2), Heidi C. Hauffe(2), Sílvia Pérez‐Espona(2), Giorgio Bertorelle(2)