52 Works

Rare and widespread: Integrating Bayesian MCMC approaches, Sanger sequencing and Hyb-Seq phylogenomics to reconstruct the origin of the enigmatic Rand Flora genus Camptoloma

Victoria Culshaw, Tamera Villaverde, Mario Mairal, Sanna Olsson & Isabel Sanmartín
Premise Genera that are widespread but have a geographically discontinuous distribution and are represented by few species are intriguing. Did they achieve their disjunct distribution recently, or is it ancient in origin? Why are they species-poor? The Rand Flora is a continental-scale floristic pattern in which closely related species appear co-distributed in isolated regions over the edges of Africa and nearby archipelagos. Genus Camptoloma (Scrophulariaceae) is the most notable example, comprising three species isolated from...

Ecological and geographical marginality in rear edge populations of Palaearctic forest birds (data)

José Luis Tellería, Ricardo Hernández-Lambraño & Roberto Carbonell
The centre–periphery hypothesis predicts that habitat suitability will decrease at the edge of a species' range, a pattern often questioned by empirical data. Here we explore if habitat suitability decreases southwards and shapes the abundance distribution of rear edge populations of forest birds within the restricted geographical setting of the south-western Palaearctic. We also test if birds endemic to the area fit more poorly to the latitudinal decrease of habitat suitability due to the putative...

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