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Vicariance is the emergence of geographic barriers to dispersal and gene flow, which spatially isolates populations and may lead to the formation of new species (i.e., allopatric speciation ...
The data shows that homogenization is indeed happening. Geographic barriers to dispersal have fallen down but climate still limits how species colonize new areas. It has been hypothesized that ...
He explains: "We made use of the idea of 'genetic isolation by geographic distance'. According to this idea, when individual dispersal distances are smaller, such as in flightless insects ...
Borregaard, Knud A. Jonsson, Petter Z. Marki, Jon Fjeldsa and Carsten Rahbek of the Universities of Oslo and Copenhagen and Imperial College, London as The influence of wing morphology upon the ...
The Ophiocordyceps unilateralis fungus has just one goal: self-propagation and dispersal. Researchers think the fungus, found in tropical forests, infects a foraging ant through spores that attach ...
He explains: “We made use of the idea of ‘genetic isolation by geographic distance’. According to this idea, when individual dispersal distances are smaller, such as in flightless insects ...