Results 11 to 20 of about 504 (102)

Phylogenomics, ecomorphological evolution, and historical biogeography in Deuterocohnia (Bromeliaceae: Pitcairnioideae). [PDF]

open access: yesAm J Bot
Abstract Premise Species of Deuterocohnia (17 spp.) show extraordinary variation in elevation (0–3900 m a.s.l.) and growth forms, and many have narrow geographic distributions in the west‐central Andes and the Peru‐Chile coast. Previous research using few plastid and nuclear loci failed to produce well‐resolved or supported phylogenies.
Li B   +5 more
europepmc   +2 more sources

Developing a phylogenetic framework for tiny Ordovician brachiopods (Atrypida: Anazyginae and Catazyginae) from the eastern United States [PDF]

open access: yesEstonian Journal of Earth Sciences, 2023
Elucidating how environmental change can facilitate the differentiation of evolutionary lineages and the establishment of new species is a critical issue for understanding both the history of life and modern biota. Notably, speciation events are known to
Mariana Vilela-Andrade   +1 more
doaj   +1 more source

Divide to Conquer: Evolutionary History of Allioideae Tribes (Amaryllidaceae) Is Linked to Distinct Trends of Karyotype Evolution

open access: yesFrontiers in Plant Science, 2020
Allioideae (e.g., chives, garlics, onions) comprises three mainly temperate tribes: Allieae (800 species from the northern hemisphere), Gilliesieae (80 South American species), and Tulbaghieae (26 Southern African species). We reconstructed the phylogeny
Lucas Costa   +5 more
doaj   +1 more source

Genetic divergence between isolated populations of the North Island New Zealand Rifleman (Acanthisitta chloris granti) implicates ancient biogeographic impacts rather than recent habitat fragmentation

open access: yesEcology and Evolution, 2021
This research investigates the extent and causal mechanisms of genetic population divergence in a poorly flighted passerine, the North Island Rifleman or Titipounamu (Acanthisitta chloris granti).
Sarah J. Withers   +4 more
doaj   +1 more source

The role of vicariance and dispersal on the temporal range dynamics of forest vipers in the Neotropical region.

open access: yesPLoS ONE, 2021
The emergence of the diagonal of open/dry vegetations, including Chaco, Cerrado and Caatinga, is suggested to have acted as a dispersal barrier for terrestrial organisms by fragmenting a single large forest that existed in South America into the present ...
Matheus Pontes-Nogueira   +3 more
doaj   +1 more source

Biogeography of curimatid fishes reveals multiple lowland–upland river transitions and differential diversification in the Neotropics (Teleostei, Curimatidae)

open access: yesEcology and Evolution, 2021
The Neotropics harbors a megadiverse ichthyofauna comprising over 6300 species with approximately 80% in just three taxonomic orders within the clade Characiphysi.
Bruno F. Melo   +3 more
doaj   +1 more source

Evolutionary and Biogeographical History of Penguins (Sphenisciformes): Review of the Dispersal Patterns and Adaptations in a Geologic and Paleoecological Context

open access: yesDiversity, 2022
Despite its current low diversity, the penguin clade (Sphenisciformes) is one of the groups of birds with the most complete fossil record. Likewise, from the evolutionary point of view, it is an interesting group given the adaptations developed for ...
Jonathan S. Pelegrín   +1 more
doaj   +1 more source

Towards a synthesis of the Caribbean biogeography of terrestrial arthropods

open access: yesBMC Evolutionary Biology, 2020
Background The immense geologic and ecological complexity of the Caribbean has created a natural laboratory for interpreting when and how organisms disperse through time and space.
Sarah C. Crews, Lauren A. Esposito
doaj   +1 more source

The evolutionary history and ancestral biogeographic range estimation of old-world Rhinolophidae and Hipposideridae (Chiroptera)

open access: yesBMC Ecology and Evolution, 2022
Background Family Rhinolophidae (horseshoe bats), Hipposideridae (leaf-nosed bats) and Rhinonycteridae (trident bats) are exclusively distributed in the Old-World, and their biogeography reflects the complex historic geological events throughout the ...
Ada Chornelia, Alice Catherine Hughes
doaj   +1 more source

Polyploidy Expands the Range of Centaurium (Gentianaceae)

open access: yesFrontiers in Plant Science, 2021
The Mediterranean region is one of the most important worldwide hotspots in terms of number of species and endemism, and multiple hypotheses have been proposed to explain how diversification occurred in this area.
Enrique Maguilla   +5 more
doaj   +1 more source

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