Results 31 to 40 of about 15,965 (266)

Signature of the Paleo-Course Changes in the São Francisco River as Source of Genetic Structure in Neotropical Pithecopus nordestinus (Phyllomedusinae, Anura) Treefrog

open access: yesFrontiers in Genetics, 2019
Historical processes that have interrupted gene flow between distinct evolutionary lineages have played a fundamental role in the evolution of the enormous diversity of species found in the Neotropical region.
Daniel Pacheco Bruschi   +5 more
doaj   +1 more source

Invasive species and biodiversity crises: testing the link in the late devonian. [PDF]

open access: yesPLoS ONE, 2010
During the Late Devonian Biodiversity Crisis, the primary driver of biodiversity decline was the dramatic reduction in speciation rates, not elevated extinction rates; however, the causes of speciation decline have been previously unstudied.
Alycia L Stigall
doaj   +1 more source

Biogeographical patterns of the neotropical genus Battus Scopoli 1777 (Lepidoptera Papilionidae) [PDF]

open access: yes, 1993
A phylogenetic approach to the groups of species of the neotropical Troidines currently included in the genus Battus Scopoli 1777 has been conducted. In the light of historical and ecological processes of evolution in the neotropical biota, the cladogram
OLIVERIO, Marco, RACHELI T.
core   +1 more source

Pleistocene Aquatic Refuges Support the East–West Separation of the Neotropical Catfish Trichomycterinae (Siluriformes: Trichomycteridae) and High Diversity in the Magdalena, Guiana, and Paraná-Paraguay Basins

open access: yesDiversity, 2023
(1) Background: Trichomycterinae represent 60% of the species in the family and, while seven genera comprise 1–3 species each, Trichomycterus and Cambeva have over 180 known species between them.
Thais de Assis Volpi   +3 more
doaj   +1 more source

The Relationship Between North and Middle American \u3ci\u3eStenonema\u3c/i\u3e (Ephemeroptera: Heptageniidae) [PDF]

open access: yes, 2017
Stenonema integrum (McDunnough) is shown to be a junior synonym of S. mexicanum (Ulmer.) n.syn. Subspecific status is delegated to Nearctic and Neotropical populations of this species as S. m. imegrum and S, m. mexicanum, respectively.
McCafferty, W. P
core   +2 more sources

Evolutionary diversifications of plants on the Qinghai-Tibetan Plateau

open access: yesFrontiers in Genetics, 2014
The Qinghai-Tibetan Plateau (QTP) is the highest and one of the most extensive plateaus in the world. Phylogenetic, phylogeographic and ecological studies support plant diversifications on the QTP through multiple mechanisms such as allopatric ...
Jun eWen   +5 more
doaj   +1 more source

Synopsis of the Evippinae (Araneae, Lycosidae) of Israel, with description of a new species

open access: yesEuropean Journal of Taxonomy, 2021
Evippinae (Araneae, Lycosidae) is a subfamily of old-world lycosids, comprising six genera and 67 species, most of them typically found in xeric habitats.
Igor Armiach Steinpress   +4 more
doaj   +1 more source

Islands contribute disproportionately high amounts of evolutionary diversity in passerine birds [PDF]

open access: yes, 2015
Island systems generally have fewer species than continental areas due to their small size and geographical isolation. Low island diversity reduces the possibility of exportation of island lineages and island systems are not thought to have a major ...
Holt, BG, Jonsson, K
core   +1 more source

Early recognition by Ball and Hooker in 1878 of plant back-colonization (boomerang) events from Macaronesia to Africa [PDF]

open access: yes, 2020
Recent work in island biogeography has shown that back-colonization (‘boomerang’ events) from islands to continents have occurred more frequently than previously understoodWe report possibly the earliest inference of this pattern, by John Ball and Joseph
Fernández-Palacios, José María   +1 more
core   +1 more source

Phylogenetic paleobiogeography of Late Ordovician Laurentian brachiopods [PDF]

open access: yesEstonian Journal of Earth Sciences, 2014
Phylogenetic biogeographic analysis of four brachiopod genera was used to uncover large-scale geologic drivers of Late Ordovician biogeographic differentiation in Laurentia. Previously generated phylogenetic hypotheses were converted into area cladograms,
Jennifer E. Bauer, Alycia L. Stigall
doaj   +1 more source

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