Biogeographic Analysis Reveals Ancient Continental Vicariance and Recent Oceanic Dispersal in Amphibians
2014/06/19 by R. Alexander Pyron · 2 citations
Environmental Science · #Amphibian and Reptile Biology #Species Distribution and Climate Change #Ecology and Vegetation Dynamics Studies
paper · pdf · doi:10.1093/sysbio/syu042
openalex publication_date 2014/06/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/23
Abstract
Amphibia comprises over 7000 extant species distributed in almost every ecosystem on every continent except Antarctica. Most species also show high specificity for particular habitats, biomes, or climatic niches, seemingly rendering long-distance dispersal unlikely. Indeed, many lineages still seem to show the signature of their Pangaean origin, approximately 300 Ma later. To date, no study has attempted a large-scale historical-biogeographic analysis of the group to understand the distribution of extant lineages. Here, I use an updated chronogram containing 3309 species (∼ 45% of extant diversity) to reconstruct their movement between 12 global ecoregions. I find that Pangaean origin and subsequent Laurasian and Gondwanan fragmentation explain a large proportion of patterns in the distribution of extant species. However, dispersal during the Cenozoic, likely across land bridges or short distances across oceans, has also exerted a strong influence. Finally, there are at least three strongly supported instances of long-distance oceanic dispersal between former Gondwanan landmasses during the Cenozoic. Extinction from intervening areas seems to be a strong factor in shaping present-day distributions. Dispersal and extinction from and between ecoregions are apparently tied to the evolution of extraordinarily adaptive expansion-oriented phenotypes that allow lineages to easily colonize new areas and diversify, or conversely, to extremely specialized phenotypes or heavily relictual climatic niches that result in strong geographic localization and limited diversification.
Citations
- Coming to America: multiple origins of New World geckos
- Out of the blue: a novel, trans‐Atlantic clade of geckos (Gekkota, Squamata)
- Late Jurassic salamandroid from western Liaoning, China
- An Early Jurassic caecilian with limbs
- Archaeobatrachian Paraphyly and Pangaean Diversification of Crown-Group Frogs
- A stem batrachian from the Early Permian of Texas and the origin of frogs and salamanders
- Paleontological Evidence to Date the Tree of Life
- Mammalian biodiversity on Madagascar controlled by ocean currents
- A multilocus timescale for the origin of extant amphibians
- A stem‐group caecilian (Lissamphibia: Gymnophiona) from the Lower Cretaceous of North Africa
- A molecular phylogeny of tortoises (Testudines: Testudinidae) based on mitochondrial and nuclear genes
- A cephalopod fauna from the middle Ordovician of Saudi Arabia
- Early Miocene origin and cryptic diversification of South American salamanders
- Maximum Likelihood Inference of Geographic Range Evolution by Dispersal, Local Extinction, and Cladogenesis
- Discovery of a new family of amphibians from northeast India with ancient links to Africa
- A phylogeny and revised classification of Squamata, including 4161 species of lizards and snakes
- INVESTIGATIONS ON THE PSYLLID (HEMIPTERA: PSYLLIDAE)VECTORS OF ‘Candidatus Phytoplasma mali’ IN TRENTINO
- The role of phylogeny and ecology in shaping morphology in 21 genera and 127 species of Australo‐Papuan myobatrachid frogs
- A large-scale phylogeny of Amphibia including over 2800 species, and a revised classification of extant frogs, salamanders, and caecilians
- Survey of Branch Support Methods Demonstrates Accuracy, Power, and Robustness of Fast Likelihood-based Approximation Schemes
- Investigating the origin of transoceanic distributions: Mtdna showsMabuyalizards (Reptilia, Scincidae) crossed the Atlantic twice
- Around the world in 10 million years: biogeography of the nearly cosmopolitan true toads (Anura: Bufonidae)
- THE AMPHIBIAN TREE OF LIFE
- A Conceptual and Statistical Framework for Adaptive Radiations with a Key Role for Diversity Dependence
- Phylogenetic relationships of a Patagonian frog radiation, the Alsodes + Eupsophus clade (Anura: Alsodidae), with comments on the supposed paraphyly of Eupsophus
- PHYLOGENETIC SYSTEMATICS OF DART-POISON FROGS AND THEIR RELATIVES (AMPHIBIA: ATHESPHATANURA: DENDROBATIDAE)
- SYSTEMATIC REVIEW OF THE FROG FAMILY HYLIDAE, WITH SPECIAL REFERENCE TO HYLINAE: PHYLOGENETIC ANALYSIS AND TAXONOMIC REVISION
- Initial Diversification of Living Amphibians Predated the Breakup of Pangaea
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