Results 91 to 100 of about 15,235 (231)

Geography-related sub-generic diversity within the Mediterranean trapdoor spider genus Nemesia (Araneae, Mygalomorphae, Nemesiidae) [PDF]

open access: yes, 2012
Three different male and female super-specific types are distinguished according to variations in the morphology of the bulb and spermathecae within the genus Nemesia Audouin, 1826.
Decae, Arthur E.
core   +2 more sources

Dispersal and delimitation: Phylogenomics of Connaraceae prompts revised generic delimitation in Cnestideae and reveals global biogeographic patterns

open access: yesTAXON, Volume 75, Issue 2, April 2026.
Abstract The tempo and mode of assembly of the world's most diverse, tropical floras remain poorly known. Evolutionary relationships within pantropical plant clades such as Connaraceae (Oxalidales, ca. 220 species) offer an opportunity to address this issue.
Serafin J.R. Streiff, Jurriaan M. de Vos
wiley   +1 more source

Aquatic Biodiversity in the Amazon: Habitat Specialization and Geographic Isolation Promote Species Richness

open access: yesAnimals, 2011
The Neotropical freshwater ichthyofauna has among the highest species richness and density of any vertebrate fauna on Earth, with more than 5,600 species compressed into less than 12% of the world’s land surface area, and less than 0.002% of the world’s ...
Roberto E. Reis   +10 more
doaj   +1 more source

Ctenosaura palearis [PDF]

open access: yes, 1990
Number of Pages: 3Integrative BiologyGeological ...
Axtell, Ralph W., Buckley, Lawrence J.
core   +1 more source

A new record of fossil wood of Vochysiaceae from the Upper Pleistocene (Arroyo Feliciano Formation), Argentina, South America [PDF]

open access: yes, 2015
A new species of Qualeoxylon Suguio & Mussa is described from the Late Pleistocene Arroyo Feliciano Formation of the Gualeguay Basin on eastern Argentina.
Brea, Mariana, Moya, Eliana Vanesa
core   +1 more source

Vicarious ostracism [PDF]

open access: yesFrontiers in Human Neuroscience, 2013
Wesselmann, Eric D.   +2 more
openaire   +3 more sources

Signatures of seaway closures and founder dispersal in the phylogeny of a circumglobally distributed seahorse lineage

open access: yesBMC Evolutionary Biology, 2007
Background The importance of vicariance events on the establishment of phylogeographic patterns in the marine environment is well documented, and generally accepted as an important cause of cladogenesis. Founder dispersal (i.e.
Matthee Conrad A   +3 more
doaj   +1 more source

Tertiary Climate Change and the Diversification of the Amazonian Gecko Genus Gonatodes (Sphaerodactylidae, Squamata) [PDF]

open access: yes, 2008
The genus Gonatodes is a monophyletic group of small-bodied, diurnal geckos distributed across northern South America, Central America, and the Caribbean.
Colli, Guarino R.   +3 more
core   +1 more source

Effects of Pleistocene climate changes on species ranges and evolutionary processes in the Neotropical Atlantic Forest [PDF]

open access: yes, 2016
The effects of global glaciations on the distribution of organisms is an essential element of many diversification models. However, the empirical evidence supporting this idea is mixed, in particular with respect to explaining tropical forest evolution ...
Cabanne, Gustavo Sebastián   +6 more
core   +2 more sources

Wandering behaviour prevents inter and intra oceanic speciation in a coastal pelagic fish [PDF]

open access: yes, 2017
Small pelagic fishes have the ability to disperse over long distances and may present complex evolutionary histories. Here, Old World Anchovies (OWA) were used as a model system to understand genetic patterns and connectivity of fish between the Atlantic
A Magoulas   +51 more
core   +2 more sources

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