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The discordance of diversification: evolution in the tropical‐montane frogs of the Eastern Arc Mountains of Tanzania
TLDR
Results from these analyses show three lineages of Hyperolius frogs with concordant ranges within the Eastern Afromontane Biodiversity Hotspot to have independent evolutionary histories, which current spatial configurations of sparsely available habitat have moulded into convergent geographical ranges. Expand
THE EVOLUTIONARY HISTORY OF DARWIN'S FINCHES: SPECIATION, GENE FLOW, AND INTROGRESSION IN A FRAGMENTED LANDSCAPE
TLDR
A landscape perspective highlights a likely role for isolation of peripheral populations in initial divergence, and demonstrates that peripheral populations may maintain genetic diversity through outbreeding during the initial stages of speciation. Expand
Diversification in a biodiversity hot spot: landscape correlates of phylogeographic patterns in the African spotted reed frog
TLDR
This work investigates how characteristics of landscape heterogeneity including regional distributions of slope, rivers and streams, habitat and hydrological basins (drainages) impact genetic distance among populations of the endemic spotted reed frog (Hyperolius substriatus), identifying corridors of connectivity as well as barriers to dispersal. Expand
STRONG SELECTION AGAINST HYBRIDS AT A HYBRID ZONE IN THE ENSATINA RING SPECIES COMPLEX AND ITS EVOLUTIONARY IMPLICATIONS
TLDR
The evidence for strong but incomplete isolation across this centrally located contact is consistent with theory suggesting a gradual increase in postzygotic incompatibility between allopatric populations subject to divergent selection and reinforces the value of Ensatina as a system for the study of divergence and speciation at multiple stages. Expand
Male reproductive fitness and queen polyandry are linked to variation in the supergene Gp-9 in the fire ant Solenopsis invicta
TLDR
It is shown that both male reproductive success and facultative polyandry in queens have a simple genetic basis and are dependent on male Gp-9 genotype, and how strong worker-induced selection acting to maintain the G p-9b allele in the polygyne social form may simultaneously result in reduced reproductive fitness for individual sexual offspring. Expand
STRONG SELECTION AGAINST HYBRIDS AT A HYBRID ZONE IN THE ENSATINA RING SPECIES COMPLEX AND ITS EVOLUTINARY IMPLICATIONS
TLDR
The evidence for strong but incomplete isolation across this centrally located contact is consistent with theory suggesting a gradual increase in postzygotic incompatibility between allopatric populations subject to divergent selection and reinforces the value of Ensatina as a system for the study of divergence and speciation at multiple stages. Expand
Terrestrialization, Miniaturization and Rates of Diversification in African Puddle Frogs (Anura: Phrynobatrachidae)
TLDR
Though terrestrialization and miniaturization in sub-Saharan puddle frogs (Phrynobatrachidae) do not seem to be associated with increased speciation rates, they may still provide opportunities to extend into new niches, thus increasing overall diversity. Expand
Sexual Dichromatism Drives Diversification within a Major Radiation of African Amphibians.
TLDR
It is proposed that reed frogs are a compelling system for studying the roles of natural and sexual selection on the evolution of sexual dichromatism across micro- and macroevolutionary timescales. Expand
Leapfrogging into new territory: How Mascarene ridged frogs diversified across Africa and Madagascar to maintain their ecological niche.
TLDR
The P. mascareniensis complex provides insights into how bioclimatic niche shaped the current biogeographic patterns with niche conservatism being exhibited by the Central African radiation and niche divergence shaping populations in West Africa and Madagascar. Expand
The adaptive genomic landscape of beak morphology in Darwin's finches
TLDR
The adaptive genomic landscape for Darwin's finches mirrors theoretical expectations based on morphological variation and the implication that a large number of genes are actively maintained to facilitate beak variation across parallel populations with documented interspecies admixture challenges the understanding of evolutionary processes in the wild. Expand
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